Product Description
| Model : | Oil Free Series |
| Type: | Dry Oil Free Screw Air Compressor |
| Voltage: | Dry Oil Free Screw Air Compressor |
| Working Pressure: | 8~12.5bar |
| Installed Motor Power: | 5.5~250 Kw |
| Capacity: | 0.2~44.78 m3/min |
| Driven Method: | Direct Driven |
| Power | 380V / 3PH / 50HZ / 60HZ 220V / 3PH / 50HZ / 60HZ 440V / 3PH / 50HZ / 60HZ 415V / 3PH / 50HZ / 60HZ Can be customized |
| Air End: | SKF/SKF |
| Transport Package: | Standard Wooden Packing |
| Electrical control system | Schneider |
| Motor protection grade | IP54 |
| Insulation class | F |
| Outlet Air Humidity | ambient temperature+10ºC |
Product Features
In pharmaceutical, electronic, chemical, microbial fermentation, blow moulding, pressure detection and other industrial production, there are many medium-pressure compressed air to be used to 1.6-4.0 MPa in power plants, naval ships, military and national defense facilities. At present, piston air compressors are mostly used at home and abroad, while piston air compressors are characterized by large vibration, high noise, large leakage and short service life, so their efficiency is very low and the same work is done. The medium pressure oil-free screw machine has compact structure, high working efficiency, low noise, low vibration, easy maintenance, low operating cost and good air quality. At the same time, the series of machines are controlled by micro-computer system. The whole machine has multiple protective performance of pressure, temperature and overload energy.
1.Constant pressure control: high-precision constant pressure control with a pressure fluctuation range within0.01MPa.
2. Variable frequency soft start: remove CHINAMFG current during starting, avoid the power grid impact, prevent the current impact through gradual speed regulation and improve flexibility;
3.No idling: prevent idling of the compressor during running and reduce invalid energy consumption;
3.High performance vector control: low-frequency starting provides a large torque and a low running current, ensuring to get a reasonable torque to drive the air compressor to run stably with the minimum temperature rise of the motor within a wide speed range;
| Model | Working pressure | Capacity | Motor power | Noise dB(A) |
Inlet and outlet pipe dia. of cooling water | Cooling water volume |
Lubricating water |
Dimension(mm) | Net weight | ||
| bar | m3/min | kw/hp | Inlet water temp. 32ºC(T/H) |
L | L*W*H | KGS | |||||
| SGM08 | 8 | 1.17 | 7.5/10 | 58 | 3/4″ | 2 | 10 | 800*800*1100(A) 800*800*1100(W) |
470 | ||
| 10 | 1.05 | ||||||||||
| 12.5 | 0.81 | ||||||||||
| SGM11 | 8 | 1.65 | 11/15 | 60 | 1″ | 2.5 | 26 | 1200*760*1300(A) 1200*760*1300(W) |
580 | ||
| 10 | 1.42 | ||||||||||
| 12.5 | 1.10 | ||||||||||
| SGM15 | 8 | 2.43 | 15/20 | 63 | 1″ | 3.5 | 26 | 1200*760*1300(A) 1200*760*1300(W) |
620 | ||
| 10 | 2.17 | ||||||||||
| 12.5 | 1.80 | ||||||||||
| SGM18 | 8 | 3.13 | 18.5/25 | 65 | 1″ | 4 | 30 | 1400*900*1450(A) 1400*900*1450(W) |
680 | ||
| 10 | 2.82 | ||||||||||
| 12.5 | 2.05 | ||||||||||
| SGM22 | 8 | 3.52 | 22/30 | 65 | 1″ | 5 | 30 | 1400*900*1450(A) 1400*900*1450(W) |
730 | ||
| 10 | 3.21 | ||||||||||
| 12.5 | 2.78 | ||||||||||
| SGM30 | 8 | 5.12 | 30/40 | 67 | 1 1/2″ | 7 | 40 | 1550*1150*1500(A) 1500*1150*1300(W) |
1100 | ||
| 10 | 4.43 | ||||||||||
| 12.5 | 3.63 | ||||||||||
| SGM37 | 8 | 6.30 | 37/50 | 67 | 1 1/2″ | 9 | 40 | 1550*1150*1500(A) 1500*1150*1300(W) |
1150 | ||
| 10 | 5.33 | ||||||||||
| 12.5 | 4.77 | ||||||||||
| SGM45 | 8 | 7.40 | 45/60 | 68 | 1 1/2″ | 10 | 90 | 1800*1300*1750(A) 1800*1300*1680(W) |
1390 | ||
| 10 | 6.30 | ||||||||||
| 12.5 | 5.56 | ||||||||||
| SGM55 | 8 | 9.60 | 55/75 | 70 | 1 1/2″ | 12 | 120 | 1980*1400*1850(A) 1800*1300*1680(W) |
1470 | ||
| 10 | 8.55 | ||||||||||
| 12.5 | 7.67 | ||||||||||
| SGM75 | 8 | 13.00 | 75/100 | 73 | 1 1/2″ | 18 | 120 | 2100*1600*1900(A) 1800*1300*1750(W) |
2250 1630 |
||
| 10 | 11.50 | ||||||||||
| 12.5 | 9.70 | ||||||||||
| SGM90 | 8 | 14.80 | 90/120 | 73 | 1 1/2″ | 20 | 180 | 2400*1600*2000(A) 2200*1550*1800(W) |
2650 2350 |
||
| 10 | 13.90 | ||||||||||
| 12.5 | 12.60 | ||||||||||
| SGM110 | 8 | 19.85 | 110/150 | 78 | 2″ | 24 | 180 | 2700*1600*2100(A) 2200*1550*1800(W) |
2950 2460 |
||
| 10 | 16.66 | ||||||||||
| 12.5 | 15.56 | ||||||||||
| SGM132 | 8 | 23.10 | 132/175 | 78 | 2″ | 30 | 240 | 3000*1700*2250(A) 2200*1550*1800(W) |
3500 2500 |
||
| 10 | 19.97 | ||||||||||
| 12.5 | 16.90 | ||||||||||
| SGM160 | 8 | 28.11 | 160/200 | 80 | 3″ | 35 | 240 | 3000*1800*2100(W) | 3700 | ||
| 10 | 25.45 | ||||||||||
| 12.5 | 22.52 | ||||||||||
| SGM185 | 8 | 33.97 | 185/250 | 80 | 3″ | 38 | 300 | 3000*1800*2100(W) | 3750 | ||
| 10 | 29.00 | ||||||||||
| 12.5 | 25.21 | ||||||||||
| SGM200 | 8 | 36.75 | 200/275 | 80 | 4″ | 42 | 300 | 3100*1850*2100(W) | 3900 | ||
| 10 | 32.78 | ||||||||||
| 12.5 | 29.24 | ||||||||||
| SGM220 | 8 | 39.67 | 220/300 | 80 | 4″ | 47 | 360 | 3100*1850*2100(W) | 4200 | ||
| 10 | 36.75 | ||||||||||
| 12.5 | 29.63 | ||||||||||
| SGM250 | 8 | 43.50 | 250/350 | 80 | 4″ | 53 | 360 | 3100*1850*2100(W) | 4600 | ||
| 10 | 39.30 | ||||||||||
| 12.5 | 34.00 | ||||||||||
| Motor Protection Class:IP54/IP55 or as per your requests. | |||||||||||
| Voltage: 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests. | |||||||||||
| In the external dimensions: “A” means air cooling, and “W” means water cooling. | |||||||||||
Q1: What is the rotor speed for the air end?
A1: 2980rmp.
Q2: What’s your lead time?
A2: usually, 5-7 days. (OEM orders: 15days)
Q3: Can you offer water cooled air compressor?
A3: Yes, we can (normally, air cooled type).
Q4: What’s the payment term?
A4: T/T, L/C, Western Union, etc. Also we could accept USD, RMB, and other currency.
Q5: Do you accept customized voltage?
A5: Yes. 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests.
Q6: What is your warranty for air compressor?
A6: One year for the whole air compressor(not including the consumption spare parts) and technical supports can be provided according to your needs.
Q7: Can you accept OEM orders?
A7: Yes, OEM orders are warmly welcome.
Q8: How about your customer service and after-sales service?
A8: 24hrs on-line support, 48hrs problem solved promise.
Q9: Do you have spare parts in stock?
A9: Yes, we do.
Q10: What kind of initial lubrication oil you used in air compressor?
A10: TOTAL 46# mineral oil.
If you are interested in any of our products,please feel free to contact us.
We are looking CHINAMFG to cooperating,growing and developing with your sincerely.
| Lubrication Style: | Oil-free |
|---|---|
| Cooling System: | Water Cooling |
| Power Source: | AC Power |
| Cylinder Position: | Vertical |
| Structure Type: | Closed Type |
| Installation Type: | Stationary Type |
| Customization: |
Available
|
|
|---|
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What Are the Key Components of a Water-Lubrication System in Compressors?
A water-lubrication system in compressors typically consists of several key components that work together to provide lubrication and cooling to the compressor. Here’s a detailed explanation of the key components of a water-lubrication system in compressors:
Water Supply:
- Water Source: The water-lubrication system requires a water source that provides clean and suitable water for lubrication. The water can be sourced from various places such as municipal water supply, well water, or treated water from a dedicated water treatment system.
- Water Inlet: The water inlet is the entry point where water enters the compressor’s lubrication system. It may include valves, filters, or other components to regulate and control the water flow.
Lubrication System:
- Water Jackets: Water jackets are channels or passages built into the compressor’s housing or cylinder walls. These jackets allow water to circulate and come into direct contact with the compressor’s moving parts, providing lubrication and cooling. The water jackets help dissipate heat generated during compression and prevent excessive temperatures that could damage the compressor.
- Water Pump: The water pump is responsible for circulating water through the water jackets and the entire lubrication system. It provides the necessary pressure to ensure adequate water flow and distribution to the compressor’s components.
- Flow Control Devices: Flow control devices, such as valves or flow restrictors, are often included in the water-lubrication system to regulate and control the water flow rate. These devices help maintain optimal water pressure and flow throughout the system, ensuring effective lubrication and cooling.
- Water Filters: Water filters are used to remove impurities, sediment, or debris from the water before it enters the lubrication system. They help prevent blockages, protect the compressor’s components from damage, and maintain the quality of the water used for lubrication.
- Water Separator: A water separator is a component that removes excess water, moisture, or condensate from the compressed air. It ensures that the compressed air leaving the compressor is dry and free from excess water content, preventing potential issues such as corrosion or contamination downstream.
Control and Monitoring:
- Temperature Sensors: Temperature sensors are used to monitor the temperature of the water and the compressor components. They provide feedback to the control system, allowing for adjustments in water flow or cooling measures if required to maintain optimal operating conditions.
- Pressure Sensors: Pressure sensors are employed to monitor the water pressure within the lubrication system. They help ensure that the water flow and pressure are within the desired range, allowing for proper lubrication and cooling of the compressor.
- Control System: A control system, which may include a combination of sensors, valves, and controllers, is responsible for regulating and maintaining the operation of the water-lubrication system. It can monitor various parameters, such as temperature, pressure, and flow, and make adjustments as needed to ensure efficient and safe operation.
Regular maintenance, inspection, and monitoring of the key components of the water-lubrication system are essential to ensure its proper functioning and to prevent any issues that could affect the performance and longevity of the compressor.
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Are There Any Restrictions on the Type of Water Used in Water-Lubricated Compressors?
When it comes to water-lubricated compressors, there are certain restrictions and considerations regarding the type of water that can be used. Here’s a detailed explanation of the restrictions on the type of water used in water-lubricated compressors:
Water Quality:
- Cleanliness: The water used in water-lubricated compressors should be clean and free from excessive impurities or contaminants. Impurities like sediment, minerals, or debris can cause blockages, wear, or damage to the compressor components. It is important to use water that meets the cleanliness requirements specified by the manufacturer.
- Chemical Composition: The chemical composition of the water can also be a factor to consider. Water with high mineral content or hardness can lead to scale formation, which can affect the performance and lifespan of the compressor. Water treatment methods, such as water softening or filtration, may be necessary to maintain the desired water quality.
Water Temperature:
- Freezing Point: In cold climates, it is important to ensure that the water used in the compressor’s lubrication system does not freeze. Freezing can cause operational issues and damage to the equipment. The water temperature should be maintained above freezing point through insulation, heating, or other suitable methods.
- Temperature Range: Water-lubricated compressors may have specific temperature requirements to ensure optimal operation and lubrication. Operating the compressor with water temperatures outside the recommended range can affect its performance and lifespan. It is important to adhere to the manufacturer’s guidelines regarding the acceptable temperature range for the water used.
Water Treatment:
- Water Treatment Systems: Depending on the quality of the available water supply, it may be necessary to use water treatment systems to ensure the water meets the required standards. Water treatment systems can help remove impurities, control chemical composition, and maintain the desired water quality for effective lubrication and cooling.
- Water Treatment Frequency: Regular maintenance and monitoring of the water treatment systems are essential to ensure their effectiveness. The frequency of water treatment, such as filtration or chemical treatment, may vary depending on the specific conditions and the water quality in the area.
Manufacturer Recommendations:
- Consulting the Manufacturer: It is important to consult the manufacturer’s guidelines and recommendations regarding the type of water to be used in water-lubricated compressors. Manufacturers may specify the acceptable water quality parameters, treatment methods, or restrictions to ensure optimal performance and longevity of the compressor.
By considering the cleanliness, chemical composition, temperature, and appropriate water treatment measures, the type of water used in water-lubricated compressors can be optimized to meet the requirements specified by the manufacturer. Adhering to these restrictions helps ensure efficient and reliable operation of the compressor while minimizing the risk of component damage or performance issues.
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Are Water-Lubricated Air Compressors Suitable for Food and Beverage Industries?
Water-lubricated air compressors can be highly suitable for the food and beverage industries due to several reasons:
- Food-grade lubrication: Water is a natural and food-grade lubricant. It does not introduce harmful contaminants or chemicals into the production process, ensuring the safety and quality of food and beverage products. Water lubrication eliminates the risk of oil contamination in food products that can occur with oil-lubricated compressors.
- Compliance with hygiene standards: The food and beverage industries have strict hygiene standards and regulations. Water-lubricated air compressors align with these standards as water is a clean and sanitary lubricant. It minimizes the risk of cross-contamination and helps maintain a hygienic production environment.
- Reduced risk of product contamination: Water lubrication eliminates the possibility of oil carryover or oil vapor entering the compressed air system. This reduces the risk of oil contamination in food and beverage products, ensuring their purity and quality.
- Improved product shelf life: Oil-lubricated compressors can release oil aerosols or vapors that may negatively affect the taste, odor, or quality of food and beverage products. Water-lubricated compressors eliminate this concern, contributing to improved product shelf life and maintaining the desired sensory attributes.
- Easy cleanup and maintenance: Water lubrication simplifies cleanup and maintenance procedures in food and beverage production facilities. Water does not leave behind sticky residues or require extensive cleaning processes. It facilitates faster and more efficient cleaning, reducing downtime and improving overall productivity.
- Environmental friendliness: Water is a sustainable and environmentally friendly lubricant choice. It is non-toxic, biodegradable, and does not contribute to air or water pollution. Using water-lubricated air compressors aligns with the sustainability goals of the food and beverage industries.
Considering these factors, water-lubricated air compressors are well-suited for the food and beverage industries, ensuring compliance with hygiene standards, preventing product contamination, and promoting a safe and sustainable production environment.


editor by CX 2023-12-12
China Professional Low Noise 22kw 30HP Oil-Free Water Lubricated Screw Air Compressor with Hot selling
Product Description
Product Description
Low Noise 22kw 30hp AC Power Oil-free Water Lubricated Screw Air Compressor
Model: RW-22A/W
Type: totally oil free water lubrication screw air compressor
Screw type: Single screw
Free air delivery: 3.52 m3/min
Working pressure: 8 bar
Control: Touch screen PLC
Driven: direct
Cooling: by air
Starting method: Frequency conversion start
Lubricating water volume: 30 liters
Electric motor: 30hp 22KW 380v/50hz/3ph,IP54
Discharge temperature: less than ambient +8 ºC
Noise: less than 65 dB(A)
Air outlet size: G1″
Dimension: 1400*900*1450mm
Weight: 745kg
Product Features
1. IE4 motor, save your electricity cost, IP54, B-level temperature rise
is suitable for harsh environments such as large dust and high
temperature;
2. 100% oil free air certified by Germany TUV.
3. Coupling connection, more energy saving.
4. Stainless Steel Pipe.
5. Centrifugal Fan for better cooling effect.
Optimized shock absorption pad to reduce vibration and noise.
6. Motor overload protection.
7. Dedicated control system, multi-channel pressure sensor and multi-channel temperature sensor to comprehensively detect the running state of the unit; the user interface is more friendly, the control is more accurate and reliable.
Technical parameter
| Model | Air Delivery (m3/min) | Power (kW) | Lubricating water amount (Liters) | Cooling water amount T/Hour | Cooling water inlet/outlet diameter | Noise dB(A) | Outlet diameter | Dimension (mm) | ||
| 8 bar | 10 Bar | 12.5 bar | L*W*H | |||||||
| RW-08A/W | 1.17 | 1.05 | 0.81 | 7.5 | 10 | 2.0 | 3/4″ | 58 | 3/4″ | 800*800*1200 |
| RW-11A/W | 1.65 | 1.42 | 1.10 | 11 | 26 | 2.5 | 1″ | 60 | 3/4″ | 1150*755*1340 |
| RW-15A/W | 2.43 | 2.17 | 1.80 | 15 | 26 | 3.5 | 1″ | 63 | 3/4″ | 1150*755*1340 |
| RW-18A/W | 3.13 | 2.82 | 2.05 | 18.5 | 30 | 4.0 | 1″ | 65 | 1″ | 1400*900*1450 |
| RW-22A/W | 3.52 | 3.21 | 2.78 | 22 | 30 | 5.0 | 1″ | 65 | 1″ | 1400*900*1450 |
| RW-30A/W | 5.12 | 4.43 | 3.63 | 30 | 40 | 7.0 | 1 1/2″ | 67 | 1 1/4″ | 1550*1150*1550(A) 1500*1150*1300(W) |
| RW-37A/W | 6.30 | 5.33 | 4.77 | 37 | 40 | 9.0 | 1 1/2″ | 67 | 1 1/4″ | 1550*1150*1550(A) 1500*1150*1300(W) |
| RW-45A/W | 7.40 | 6.30 | 5.56 | 45 | 90 | 10.0 | 1 1/2″ | 68 | 2″ | 1980*1300*1760(A) 1800*1300*1670(W) |
| RW-55A/W | 9.60 | 8.55 | 7.67 | 55 | 120 | 12.0 | 1 1/2″ | 70 | 2″ | 1980*1300*1760(A) 1800*1300*1670(W) |
| RW-75A/W | 13.00 | 11.50 | 9.70 | 75 | 120 | 18.0 | 1 1/2″ | 73 | 2″ | 2100*1600*1900(A) 2200*1500*1800(W) |
| RW-90A/W | 14.80 | 13.90 | 12.60 | 90 | 180 | 20.0 | 1 1/2″ | 73 | 2 1/2″ | 2400*1600*2000(A) 2200*1500*1800(W) |
| RW-110A/W | 19.85 | 16.66 | 15.56 | 110 | 180 | 24.0 | 2″ | 78 | 2 1/2″ | 3000*1700*2250(A) 2200*1500*1800(W) |
| RW-132A/W | 23.10 | 19.97 | 16.90 | 132 | 240 | 30.0 | 2″ | 78 | 2 1/2″ | 3000*1700*2250(A) 2200*1500*1800(W) |
| RW-160W | 28.11 | 25.45 | 22.52 | 160 | 240 | 35.0 | 3H | 80 | DN80 | 2700*2800*2050 |
| RW-185W | 33.97 | 29.00 | 25.21 | 185 | 300 | 38.0 | 3″ | 80 | DN80 | 2700*2800*2050 |
| RW-200W | 36.75 | 32.78 | 29.24 | 200 | 300 | 42.0 | 4″ | 80 | DN100 | 2700*2800*2050 |
| RW-220W | 39.67 | 36.75 | 29.63 | 220 | 360 | 47.0 | 4″ | 80 | DN100 | 2700*2800*2050 |
| RW-250W | 43.50 | 39.30 | 34.00 | 250 | 360 | 58.0 | 4″ | 80 | DN100 | 2700*2800*2050 |
| Note:” A” means air cooling,” W” means water cooling. | ||||||||||
Field Case
Certifications
Company Profile
ZheJiang CHINAMFG Machinery Co., Ltd. is a company dedicated to the production and research and development of various gas compression equipment. The company was established in 2012 and has a total of 5 licensed technical engineers. Mainly engaged in air, nitrogen, CO2 and other special gas compression equipment and after-treat equipment. With the development in recent years, the company has established a foreign trade team in ZheJiang , and hired foreign trade consultants with 10 years of industry experience to better serve customers worldwide. With excellent quality and the support of 30 distributors worldwide, our annual sales in 2018 exceeded 5 million US dollars. We look CHINAMFG to working with you to create a better tomorrow!
Packaging & Shipping
Payment and delivery
FAQ
Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of HangZhou,ZheJiang ,China. More than 18 years of experience in air compressor manufacturing.
Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.
Q3. What’s payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service.
3.CHINAMFG agents and after service avaiable.arrange our engineers to help you training and installation.
Q5. How about your warranty?
A: One year for the whole machine and 2 years for screw air end, except consumable spare parts.
Q6. Do you have any certificate ?
A: Yes, per different customer’s market need ,we can offer CE ,ISO etc certificate.
Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q8. How do you control quality ?
A: 1. The raw materials are strictly inspected
2. Some key parts are imported from overseas
3. Each compressor must pass at least 5 hours of continuous testing before leaving the factory.
Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.
Q10.How long could your air compressor be used?
A: Generally, more than 10 years.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 2 Year |
| Lubrication Style: | Oil-free |
| Customization: |
Available
|
|
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What Are the Safety Considerations When Using Water-Lubricated Compressors?
When using water-lubricated compressors, it is important to prioritize safety to prevent accidents, ensure the well-being of personnel, and maintain the integrity of the equipment. Here’s a detailed explanation of the safety considerations:
- Electrical Safety: Compressed air systems, including water-lubricated compressors, often involve electrical components and connections. Ensure that the electrical systems are properly installed, grounded, and protected according to applicable electrical codes and regulations. Regularly inspect electrical components, such as motors, switches, and wiring, for any signs of damage or wear that could pose electrical hazards.
- Pressure Safety: Water-lubricated compressors can operate at high pressures, presenting potential hazards. Follow the manufacturer’s guidelines and ratings to ensure that the compressor is operated within its specified pressure limits. Install and maintain pressure relief valves to prevent overpressurization and ensure the safe release of excess pressure. Regularly inspect pressure gauges, fittings, and connections for leaks, damage, or signs of degradation.
- Heat and Cooling Safety: Compressed air systems generate heat during the compression process, and proper cooling is essential to maintain safe operating temperatures. Ensure that cooling mechanisms, such as water jackets or external cooling systems, are functioning correctly and provide adequate cooling capacity. Monitor and control the temperature of the compressed air and the cooling water to prevent overheating and minimize the risk of equipment damage or failure.
- Water Quality and Treatment: The quality of the water used for lubrication is crucial for the performance and safety of water-lubricated compressors. Impurities, contaminants, or minerals in the water can lead to corrosion, blockages, or reduced lubrication effectiveness. Implement appropriate water treatment or filtration systems to maintain the desired water quality. Regularly monitor water quality and perform necessary maintenance and treatment to prevent potential safety and performance issues.
- Maintenance and Inspection: Establish a routine maintenance and inspection program for the water-lubricated compressor system. Regularly inspect the compressor, water distribution system, filters, and other components for any signs of wear, damage, or deterioration. Follow the manufacturer’s recommended maintenance procedures, including lubrication, filter replacement, and system checks. Promptly address any identified issues to prevent safety hazards and maintain the reliable operation of the compressor.
- Training and Personal Protective Equipment (PPE): Proper training of personnel who operate and maintain water-lubricated compressors is essential for safety. Ensure that operators and maintenance personnel are trained on the safe operation of the equipment, emergency procedures, and hazard identification. Provide appropriate personal protective equipment (PPE), such as safety glasses, gloves, and hearing protection, to minimize the risk of injuries from potential hazards, including high-pressure water, rotating parts, or noise.
It is important to consult applicable safety regulations, codes, and guidelines specific to your location and industry when using water-lubricated compressors. Additionally, follow the manufacturer’s instructions, warnings, and safety recommendations provided with the equipment to ensure the safe operation of water-lubricated compressors and mitigate potential risks.
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What Is the Role of Filtration in Water-Lubricated Air Compressors?
Filtration plays a crucial role in water-lubricated air compressors, serving several important purposes. Here’s a detailed explanation of the role of filtration in water-lubricated air compressors:
Contaminant Removal:
- Particle Filtration: Filtration systems in water-lubricated air compressors are designed to remove particles and contaminants from the water. These can include sediment, rust, debris, and other solid particles that may be present in the water supply. Removing these contaminants is essential to prevent blockages, clogging, and damage to the compressor components.
- Oil Removal: In some cases, water used in compressors may contain traces of oil or hydrocarbons. Filtration systems can also help remove oil and hydrocarbon contaminants from the water, ensuring that the lubrication system remains clean and effective.
Protection of Components:
- Lubrication System: Filtration prevents contaminants from reaching the lubrication system of water-lubricated air compressors. This helps maintain the cleanliness and integrity of the lubricant, ensuring optimal lubrication performance and minimizing wear on the compressor’s moving parts. Clean and filtered water can enhance the efficiency and lifespan of the compressor’s lubrication system.
- Heat Exchangers and Cooling Systems: Water-lubricated compressors often rely on heat exchangers and cooling systems to regulate the temperature of the compressed air and the compressor itself. Filtration helps protect these components by preventing the accumulation of debris and contaminants that can hinder heat transfer and reduce the cooling efficiency. Clean water free from particles and contaminants promotes effective heat exchange and cooling.
Prevention of System Fouling:
- Scaling and Deposits: Filtration systems also help prevent scaling and deposits that can occur when water with high mineral content or hardness is used. These deposits can accumulate on the internal surfaces of the compressor, heat exchangers, or other components, reducing their efficiency and potentially causing operational issues. By removing impurities and controlling mineral content, filtration minimizes the risk of scaling and deposits.
Extended Equipment Lifespan:
- Component Protection: By effectively removing contaminants, filtration systems contribute to the protection and longevity of water-lubricated air compressor components. Clean and filtered water reduces the risk of component wear, corrosion, fouling, and blockages, ultimately extending the lifespan of the compressor and reducing maintenance and replacement costs.
Regular Maintenance and Monitoring:
- Filter Replacement: Filtration systems require regular maintenance, including the replacement or cleaning of filters. The frequency of filter replacement depends on factors such as water quality, usage conditions, and the specific requirements of the compressor manufacturer. Regular maintenance ensures that the filtration system continues to effectively remove contaminants and protect the compressor components.
- Monitoring Water Quality: Alongside filtration, monitoring the quality of the water used in water-lubricated compressors is essential. This can involve periodic water analysis, measurement of key parameters such as pH or conductivity, and visual inspections. Monitoring helps identify any changes in water quality or potential issues with the filtration system, allowing for timely maintenance or corrective actions.
In summary, filtration plays a critical role in water-lubricated air compressors by removing contaminants, protecting components, preventing system fouling, and extending equipment lifespan. By maintaining clean and filtered water, filtration systems contribute to the efficient operation, reliability, and longevity of water-lubricated compressors.
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Are Water Lubrication Air Compressors More Environmentally Friendly?
Water lubrication in air compressors offers several environmental benefits compared to traditional lubrication methods. Here are some reasons why water lubrication is considered more environmentally friendly:
- Non-toxic and biodegradable: Water is a natural substance that is non-toxic and biodegradable. It does not contain harmful chemicals or additives that can pollute the air or water systems. When water lubricants are used in air compressors, there is a reduced risk of environmental contamination.
- Reduced air pollution: Traditional lubricants, such as oils or synthetic lubricants, can release volatile organic compounds (VOCs) into the air during operation. VOCs contribute to air pollution and can have detrimental effects on human health and the environment. Water lubrication eliminates the release of VOCs, resulting in improved air quality and reduced air pollution.
- Minimized water pollution: Water lubrication does not introduce additional pollutants into water systems. Unlike oils or synthetic lubricants, water does not leave behind harmful residues or contaminants that can contaminate water sources. This helps to protect aquatic ecosystems and maintain water quality.
- Energy efficiency: Water lubrication can contribute to energy efficiency in air compressors. Water has excellent heat transfer properties, allowing for efficient dissipation of heat generated during compressor operation. By effectively managing heat, water lubrication helps to reduce energy consumption and improve overall compressor efficiency.
- Sustainable resource: Water is a renewable resource that is readily available in nature. Unlike oil or synthetic lubricants, which require extraction and processing, water can be sourced sustainably. This reduces the reliance on finite resources and promotes a more sustainable approach to lubrication in air compressors.
Overall, water lubrication in air compressors is considered more environmentally friendly due to its non-toxic nature, reduced air and water pollution, energy efficiency, and sustainable resource usage.


editor by CX 2023-11-21
China Standard Oil Free Air Compressor Aq15 Aq35 Aq55 VSD CHINAMFG Water Lubricated Screw Air Compressor for Aq 15 22 37 55 75 Vsdno Reviews Yet mini air compressor
Product Description
oil free air compressor AQ15 AQ35 AQ55 VSD CHINAMFG water lubricated screw air compressor for AQ 75 VSD
Promises Every Machine Will Run Well More Than 15 Years
Product Description
Saving energy is making money
Hengchaowin rotary screw air compressor used germany technology screw(air end ) ,
The same intake valve designed by CHINAMFG Rand,
high Efficient IP54 rated motor,
And quoted the high-efficiency inverter fromDenmark.
The air compressor can maintain a stable motor efficiency at any speed,so it is more energy-saving and power-saving.
Basic introduction of air compressor
| Model : | vsd15hp 11kw rotary screw air compressor for fiber laser cutting |
| Type: | Energy Saving Air Compressor |
| Voltage: | 380V/50HZ/3P, 220V/60HZ/3P, 400V/50HZ/3P, 415V/50HZ/3P or Customer′s Requirements |
| Working Pressure: | 7~12.5 bar |
| Installed Motor Power: | 11kw /15HP |
| / 10HPCapacity: | 1.5-0.8m3/min |
| Color: | Blue or gery |
| Driven Method: | Direct drive |
| Air End: | Original Ally-win Air End from Germany |
| Trademark: | Hengchaowin |
| Transport Package: | Standard Wooden Packing |
| Available Certificate: | CE, ISO, UL, ASME, GHOST |
| Origin: | ZheJiang , China |
| application: | Casting , Metal , Plastic , Rubber |
Detailed Photos
Brief Introduction:
Air end: Germany Technology. 30 years designed lifetime.
Motor: Top quality ,IP54 or IP55
Inverter: Danish brand inverter can save 30% energy.
Warranty: 5 years for the air end, and 2 years for the whole compressor.
Delivery time: 7-15 days.
After-sales service:we have our professional after-sales technician to instruct the installation of the whole screw air compressor.
Certificate: CE/ISO9001/ASME
We offer free pipe and valves for installation and installation diagram
1.permanent magnet motor.
Exceed IE3 standards
IP54 or IP55 protecting grad
Variable speed drive
2.Germany technology air end
R&D in Germany GU or CHINAMFG brand air end
designed for 10 years +of reliable operation
3.Inlet valve
same desige as CHINAMFG Rand
No blow-off losses/large suction are
Full aluminum design,maintenance-free
4.oil gas tank & built in separation system.
Oversized air end oil tank with sight glass
The high efficiency oil seperator ensures that the oil carry over in less than 3ppm.
System pressure loss,less than 0.02mpa.
5.Polt touch controller
HD color touch LCD screen
Operation record/chart display
Weekly timer/service history and plHangZhou
Real-time operation/maintenance/alarm information
6.Innovative vectorial inverter
CE,UL,CUL,ROSH certification
Independent cooling air duct design
Robust enclosure for trouble-free operation in the harshest conditions.
Product Parameters
| Model Modelo |
HW-7T | HW-11T | HW-15T | HW-22T | HWV-30A | HWV-37A | ||||||||||||||||||
| air flow flujo de aire |
Lliter/min | 1 | 0.9 | 0.8 | 1.5 | 1.3 | 1.1 | 0.8 | 2.4 | 2.1 | 1.5 | 1 | 3.5 | 3.1 | 2.7 | 1.7 | 4.3 | 3.6 | 2.4 | 2.9 | 5.8 | 5.2 | 2.8 | 3.2 |
| 35 | 31 | 28 | 52 | 46 | 39 | 28 | 74 | 74 | 52 | 35 | 124 | 109 | 95 | 35 | 151 | 127 | 74 | 102 | 205 | 183 | 98 | 112 | ||
| working pressure presión laboral |
bar(kg) | 8 | 10 | 12.5 | 8 | 10 | 12.5 | 15 | 8 | 10 | 12.5 | 15 | 8 | 10 | 12.5 | 15 | 10 | 12.5 | 15 | 20 | 10 | 12.5 | 15 | 20 |
| psi | 116 | 145 | 174 | 116 | 145 | 174 | 217 | 116 | 145 | 174 | 217 | 116 | 145 | 174 | 217 | 145 | 174 | 217 | 290 | 145 | 174 | 217 | 290 | |
| power poder |
KW / HP | 7.5kw/ 10hp |
11kw/ 15hp |
15kw/ 20hp |
22kw/ 30hp |
30kw/ 40hp |
37kw/ 50hp |
|||||||||||||||||
| noise | db(A) | 62±2 | 66±2 | 66±2 | 68±2 | 68±2 | 72±2 | |||||||||||||||||
| Caliber | inch | RP 1/2 | RP 1/2 | RP 1/2 | RP 1/2 | RP 1 | RP1 1/2 | |||||||||||||||||
| Voltage/Frequency | AC 380v/415v/220v/480v or 50hz/60hz accpet Customized voltage | |||||||||||||||||||||||
| Starting mode Modo de inicio |
variable frequency start inicio de frecuencia variable |
|||||||||||||||||||||||
| air dryer secador |
m³/min | 1.5 | 1.5 | 2.5 | 3.8 | / | / | |||||||||||||||||
| line filter filtro de línea |
m³/min | 1.5 | 1.5 | 2.5 | 3.8 | / | / | |||||||||||||||||
| air tank tanque de aire |
liter | 300 | 400 | 400 | 600 | / | / | |||||||||||||||||
| Shape dimension (mm) |
L | 1700 | 1180 | 1180 | 1600 | 1300 | 1450 | |||||||||||||||||
| W | 800 | 800 | 800 | 110 | 910 | 910 | ||||||||||||||||||
| H | 1689 | 1210 | 1210 | 1290 | 1290 | 1290 | ||||||||||||||||||
| Weight | KG | 500 | 600 | 650 | 700 | 520 | 720 | |||||||||||||||||
Hot products
1. direct drive rotary screw air compressor
2. energy saving VSD air compressor
3. air compressor with air tank and air dryer
4. 2 stage VSD screw air compressor
Company Profile
Why Choose Us
HangZhou CHINAMFG Technology Co., Ltd., founded in 1985, in ZheJiang ,China, It is a professional air compressor manufacturer with 30 years of experience in R&D, manufacturing, marketing and service.
After the technical system reform in 2000, the company introduced German advanced CHINAMFG technology, adhering to the German advanced industrial design concept, rigorous manufacturing technology and comprehensive management. We strictly implement ISO9001 international quality system certification and EU CE standard production machines. The performance and quality of our products have been widely recognized and praised by the market, occupying 30% of China’s market share.
Starting to enter overseas markets in 2571, it currently has agents and after-sales teams in North America, Western Europe, South Africa, East Africa and other regions.
Brief introduction of factory:
1. We have been engaged in R D department, production and sales of air compressors for 30 years;
2. Our air compressor products through CE,SGS,ISO certification, with more than 20 invention patents;
3. Our products are exported to 132 countries and regions around the world;
4. Our air compressor provides a 5-year warranty.
If you have specific parameters and requirements for our Rotary Screw Type Air Compressor, customization is available
Customer feedback
Providing high-quality machines is our standard, and satisfying every customer is our pursuit. Over the years, we have won unanimous praise from overseas users for our integrity and high-quality product quality.
Packaging & Shipping
The air compressor is guaranteed for 1 year and 5 years for the screw(air end) . Warranty time is calculated from machine leave the factory.
FAQ
Q1: How long could your air compressor be used?
O: Generally, more than 10 years
Q2: What’s payment term?
O: T/T, L/C, Paypal and etc. Also we could accept USD, RMB, Euro and other currency (Pls contact our sales for more information
Q3: How about your customer service?
O: 24 hours on-line service available
Q4: How about your after-sales service?
O: 1. Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service
3. World wide agents and after service available
| Lubrication Style: | Lubricated |
|---|---|
| Cooling System: | Air Cooling |
| Power Source: | AC Power |
| Structure Type: | Closed Type |
| Installation Type: | Stationary Type |
| Type: | Twin-Screw Compressor |
| Customization: |
Available
|
|
|---|
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How Do Water-Lubricated Air Compressors Contribute to Energy Savings?
Water-lubricated air compressors can contribute to energy savings in several ways, making them an attractive option for industries looking to optimize their energy consumption. Here are the key ways in which water-lubricated compressors help achieve energy efficiency:
- Reduced friction and improved efficiency: Water serves as a lubricant in water-lubricated compressors, creating a thin film between moving parts to reduce friction. This reduces the energy losses due to mechanical friction and improves the overall efficiency of the compressor. Compared to oil-lubricated compressors, water-lubricated models can achieve higher mechanical efficiency, translating into energy savings over the compressor’s operational lifetime.
- Elimination of oil vapor carryover: Oil-lubricated compressors require oil filtration systems to prevent oil carryover into the compressed air stream. These filtration systems consume energy and can introduce pressure drops. In contrast, water-lubricated compressors eliminate the need for oil filtration, reducing energy consumption associated with filtration equipment and minimizing pressure losses. This leads to improved system efficiency and energy savings.
- Improved heat transfer and cooling: Water-lubricated compressors offer enhanced heat transfer capabilities compared to oil-lubricated counterparts. Water has a higher specific heat capacity and thermal conductivity, allowing for more efficient heat dissipation. This results in lower operating temperatures and reduces the energy required for cooling the compressor. By optimizing heat transfer, water-lubricated compressors can minimize energy consumption associated with cooling systems or air conditioning in compressor rooms.
- Optimized system design: Water-lubricated compressors often employ advanced system designs that further enhance energy efficiency. For example, they may incorporate variable speed drive (VSD) technology, which adjusts the compressor’s speed and power consumption based on the actual air demand. This eliminates energy waste associated with constant-speed operation and reduces energy consumption during periods of low compressed air demand. Additionally, water-lubricated compressors may feature optimized internal components and improved air flow dynamics, resulting in reduced energy losses and improved overall system efficiency.
- Heat recovery opportunities: Water-lubricated compressors can provide opportunities for heat recovery. The heat generated during compression can be captured and utilized for various heating applications within the facility, such as space heating, water heating, or process heating. By harnessing this waste heat, water-lubricated compressors contribute to energy savings by offsetting the need for additional energy sources for heating purposes.
By combining these energy-saving features, water-lubricated air compressors help optimize energy consumption, reduce operational costs, and minimize the environmental impact associated with compressed air systems. Implementing water-lubricated compressors with a comprehensive energy management strategy can result in significant energy savings and improved overall sustainability for industrial operations.
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How Are Water-Lubricated Air Compressors Used in Automotive Applications?
Water-lubricated air compressors find various applications in the automotive industry. Here’s a detailed explanation of how they are used in automotive applications:
Tire Inflation:
- Service Stations: Water-lubricated air compressors are commonly used in automotive service stations for tire inflation. They provide a reliable source of compressed air for quickly and efficiently inflating tires to the recommended pressure. The water lubrication system in these compressors helps to reduce friction and wear on internal components, ensuring smooth operation and extended lifespan.
- Tire Shops: Tire shops often utilize water-lubricated air compressors as part of their tire service equipment. These compressors can supply compressed air for tire inflation, tire mounting and demounting machines, and other pneumatic tools used in tire service and maintenance.
Painting and Finishing:
- Spray Painting: Water-lubricated air compressors are also used in automotive painting and finishing processes. Compressed air is used to power spray guns that apply paint or coatings to vehicles during the painting process. The water lubrication system helps maintain the cleanliness of the compressor and prevents oil contamination, ensuring high-quality paint finishes.
- Sanding and Polishing: Compressed air is often used for sanding and polishing automotive surfaces. Water-lubricated air compressors provide a reliable source of compressed air for pneumatic sanders, polishers, and other air-powered tools used in automotive surface preparation and refinishing.
Brake and Suspension Systems:
- Brake Bleeding: Water-lubricated air compressors can be used during brake bleeding procedures in automotive repair and maintenance. Compressed air is used to purge air bubbles from the brake system, ensuring optimal brake performance and pedal feel. The water lubrication system helps maintain the purity of the compressed air, preventing contamination that could affect the brake system’s functionality.
- Suspension Systems: Air suspension systems in vehicles often rely on compressed air for operation. Water-lubricated air compressors provide a continuous supply of clean and lubricated compressed air for inflating and maintaining the air springs or airbags used in vehicle suspensions.
Diagnostic and Testing Equipment:
- Diagnostic Tools: Water-lubricated air compressors are utilized in automotive diagnostic and testing equipment. Compressed air is used to operate pneumatic diagnostic tools, such as vacuum testers, pressure gauges, and leak detectors, that help diagnose and troubleshoot various vehicle systems.
- Testing and Calibration: Automotive testing and calibration equipment, such as dynamometers and emission testing devices, often require a source of compressed air. Water-lubricated air compressors supply the necessary compressed air for precise and accurate testing of vehicle performance, emissions, and other parameters.
Overall, water-lubricated air compressors play a significant role in various automotive applications, including tire inflation, painting and finishing, brake and suspension systems, and diagnostic and testing equipment. Their use helps ensure efficient and reliable operation, improved productivity, and high-quality results in automotive service, repair, and manufacturing processes.
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Are Water-Lubricated Air Compressors Suitable for Food and Beverage Industries?
Water-lubricated air compressors can be highly suitable for the food and beverage industries due to several reasons:
- Food-grade lubrication: Water is a natural and food-grade lubricant. It does not introduce harmful contaminants or chemicals into the production process, ensuring the safety and quality of food and beverage products. Water lubrication eliminates the risk of oil contamination in food products that can occur with oil-lubricated compressors.
- Compliance with hygiene standards: The food and beverage industries have strict hygiene standards and regulations. Water-lubricated air compressors align with these standards as water is a clean and sanitary lubricant. It minimizes the risk of cross-contamination and helps maintain a hygienic production environment.
- Reduced risk of product contamination: Water lubrication eliminates the possibility of oil carryover or oil vapor entering the compressed air system. This reduces the risk of oil contamination in food and beverage products, ensuring their purity and quality.
- Improved product shelf life: Oil-lubricated compressors can release oil aerosols or vapors that may negatively affect the taste, odor, or quality of food and beverage products. Water-lubricated compressors eliminate this concern, contributing to improved product shelf life and maintaining the desired sensory attributes.
- Easy cleanup and maintenance: Water lubrication simplifies cleanup and maintenance procedures in food and beverage production facilities. Water does not leave behind sticky residues or require extensive cleaning processes. It facilitates faster and more efficient cleaning, reducing downtime and improving overall productivity.
- Environmental friendliness: Water is a sustainable and environmentally friendly lubricant choice. It is non-toxic, biodegradable, and does not contribute to air or water pollution. Using water-lubricated air compressors aligns with the sustainability goals of the food and beverage industries.
Considering these factors, water-lubricated air compressors are well-suited for the food and beverage industries, ensuring compliance with hygiene standards, preventing product contamination, and promoting a safe and sustainable production environment.


editor by CX 2023-10-19