Product Description

                     High Quality Screw Air compressor 

Our company specialize in making various kinds of compressors, such as:Diaphragm compressor,Piston compressor, screw Air compressor,Nitrogen generator,Oxygen generator ,Gas cylinder,etc. All products can be customized according to your parameters and other requirements.

The CHINAMFG is a volume -type gas compression machine with a volume of work volume. The compression of the gas is achieved by changes in volume, and the change of the volume is to achieve a rotation movement in the case with a pair of rotor of the compressor.
Basic structure of the screw air compressor: In the body of the compressor, a pair of intertwined spiral rotors are parallel. Usually, there is a rotor with convex teeth outside the ball, which is called yang rotor or yang screw. The rotor with concave teeth in the festival is called a pussy rotor or yin screw. Generally, the yang rotor is connected to the original motivation. Axial force. The cylindrical roller bearing at both ends of the rotor enables the rotor to achieve radial positioning and is underneath the radial force in the compressor. At both ends of the compressor body, a certain shape and size of the pores are opened respectively. One is used for inhalation, which is called the air intake; the other is used for exhaust, called the exhaust port.
Customized is accepted , Pls provide the following information to us :
1.Working Pressure : ____ Bar 
2.Rated Power : _____ KW/HP
 

Do you really choose the right Screw compressor?

About Power Saving

1. The annual electricity bill for purchasing a 37KW ordinary screw air compressor is 37KWx24hx365 days x1. 2 (electric fee) xO. 6 (loading) Power consumption is as high as 233.3366 million! Power saving after switching to permanent magnet variable frequency screw air compressor: 23. 3366×30% save electric fee 7.

45KW

72

55KW

88

75KW

12

90KW

144

Advantages of screw air compressor :
01.Advanced Medium Voltage Dual Stage Mainframe
1. Two-stage integrated design, oil mist spray cooling is used between stages, which reduces the temperature of the air, and the compression process is close to the most energy-saving isothermal compression. In principle, two-stage compression saves 5%-8% of energy compared to single-machine compression ;
2. It is suitable for the compression ratio matching of medium voltage, the leakage in the main engine is small, and the volumetric efficiency is high;
3. The bearing adopts imported heavy-duty bearing, which makes the force of the rotor better; the two-stage rotors are driven by helical gears respectively, so that each stage of the rotor has the best linear speed;
4. The third-generation asymmetric rotor technology, the tooth surface is processed by the German KAPP rotor grinder, creating a high-precision rotor, which is the first guarantee for the high efficiency and stability of the host.
02.High efficiency permanent magnet synchronous motor
1. IP54 protection grade, which is more stable and reliable than IP23 in harsh environment;
2. Low temperature rise design, higher efficiency, and extended the service life of the motor;
3. Use ceramic plated bearings to completely eliminate the influence of shaft current on bearings;
4. It is made of rare earth permanent magnet materials, with large torque and small current during startup and operation;
5. With reasonable magnetic field design and magnetic density distribution, the working frequency range of energy-saving motors is wider and the operating noise is low;
6. Cooperating with the operation of the frequency converter, the frequency conversion soft start is realized, which avoids the strong mechanical impact of the machine and equipment when the motor is started at full pressure, and is conducive
to protecting the mechanical equipment, reducing equipment maintenance and improving the reliability of the equipment.
03. Special valve group
1. Intake valve: It adopts a special normally closed butterfly valve for medium voltage, with a non-return function, stable operation, high precision of air volume control, built-in noise reduction design, low cavitation noise and long service life;
2. Minimum pressure maintenance valve: special valve for medium voltage, high pressure resistance, high temperature resistance, accurate opening pressure, ensuring stable pressure in the barrel, ultra-fast return to seat, strong sealing, ensuring no backflow of gas, low pressure loss and high efficiency ;
3. Temperature control valve: The unit is equipped with a mixed-flow temperature control valve to ensure that the unit is more convenient to start in a low temperature environment, and to ensure the oil supply of the unit at any time; by controlling the oil supply temperature of the main engine to ensure that the unit is in the best performance state;
4. Oil cut-off valve: special normally closed valve for medium voltage, controlled by the exhaust pressure of the machine head. When starting up, the valve opens quickly to ensure that the compressor is lubricated and warmed up as soon as possible; when shutting down, the valve prevents oil from being ejected from the intake end.
4.Advanced and reliable electric control system
1. Large-size color LCD touch screen, with good man-machine communication interface, touch screen with anti-mistouch and sleep function;
2. It adopts double frequency conversion system, which is more energy-saving. The frequency converter and the motor are perfectly matched, and the low frequency and high torque can output 180% of the rated torque;
3. According to the characteristics of medium voltage, a special program is developed, with multiple pressure sensors and multiple temperature sensors, which can comprehensively detect the operating status of the unit, and automatically control the machine status without special care;
4. Configure the Internet of Things, you can check the operating status of the unit on the mobile phone;
5. Independent air duct design, suitable for various working conditions.
5.Silent centrifugal fan
1. Adopt centrifugal fan, brand-new separate radial cooling fan design, with special cooler, better cooling effect and more energy saving;
2. Compared with axial flow fans, centrifugal fans have higher wind pressure and lower noise;
3. Using variable frequency fan control, the oil temperature is constant, prolonging the service life of lubricating oil;
4. Due to the high wind pressure, the cooler and the filter are less likely to be blocked.
6..High quality triple filter

1. The filtration area of the air filter exceeds 150% of the normal requirement, the inlet pressure loss is low, and the energy efficiency is good;2. The oil filter adopts a full-flow built-in pressure-bearing oil filter suitable for medium voltage conditions. The rated processing capacity of the oil filter is 1.3 times the circulating oil volume. The imported filter material and the design scheme of large margin are selected, which has high filtration precision and good durability.
3. The oil is divided into special customized oil, which is designed and developed for medium-pressure working conditions, with wide applicable pressure range, good separation effect and low operating pressure loss; imported glass fiber material is selected;
4. The design of the 3 filter positions is reasonable, the maintenance is convenient, and the downtime is reduced.
High quality and efficient coupling
1. The coupling is a torsional elastic coupling with a failure protection function, which can effectively damp and reduce the vibration and impact generated during operation;
2. The elastic body is only under pressure and can bear a larger load, and the drum-shaped teeth of the elastic body can avoid stress concentration.   
Main Parameter

Technical parameters of oil-free water-lubricated permanent magnet variable frequency screw compressor
HYW-G	Working pressure		Exhaust volume		Power		Noise	Air outlet pipe diameter	Net weight	Dimensions(mm)
Water lubricated series	bar	psig	(m3/min)	cfm	kW	hp	dB		kg	Length	Width	Height
HYWV-7G	7	102	0.7-1.2	24.7-42.4	7.5	10	58±3	G1″	500	1135	800	1000
	8	116	0.6-1.1	21.2-38.8	7.5	10	58±3	G1″	500	1135	800	1000
	10	145	0.5-0.9	17.7-31.8	7.5	10	58±3	G1″	500	1135	800	1000
HYWV-11G	7	102	1.0-1.6	35.3-56.5	11	15	58±3	G1″	500	1135	800	1000
	8	116	0.9-1.5	31.8-53	11	15	58±3	G1″	500	1135	800	1000
	10	145	0.7-1.3	24.7-45.9	11	15	58±3	G1″	500	1135	800	1000
HYWV-15G	7	102	1.1-2	38.8-71	15	20	60±3	G1″	550	1400	1000	1200
	8	116	1-1.9	35.4-67.3	15	20	60±3	G1″	550	1400	1000	1200
	10	145	/	/	15	20	60±3	G1″	550	1400	1000	1200
HYWV-15G	7	102	/	/	15	20	60±3	G1″	550	1170	900	1100
	8	116	/	/	15	20	60±3	G1″	550	1170	900	1100
	10	145	0.9-1.6	31.8-56.6	15	20	60±3	G1″	550	1170	900	1100
HYWV-18.5G	7	102	1.8-3.1	63.6-109.5	18.5	25	61 ±3	G1″	600	1400	1000	1200
	8	116	1.6-2.8	56.5-98.9	18.5	25	61 ±3	G1″	600	1400	1000	1200
	10	145	1.5-2.5	53-88.3	18.5	25	61±3	G1″	600	1400	1000	1200
HYWV-22G	7	102	2.2-3.7	77.7-130.7	22	30	61 ±3	G1″	655	1400	1000	1200
	8	116	2.0-3.4	70.6-120.1	22	30	61 ±3	G1″	655	1400	1000	1200
	10	145	1.8-3.0	63.6-105.9	22	30	61 ±3	G1″	655	1400	1000	1200
HYWV-30G	7	102	3.1-5.2	109.5-183.6	30	40	64±3	G11/2″	1150	1920	1170	1320
	8	116	2.8-4.7	98.9-166	30	40	64±3	G11/2″	1150	1920	1170	1320
	10	145	2.5-4.3	88.3-151.9	30	40	64±3	G11/2″	1150	1920	1170	1320
HYWV-37G	7	102	3.6-6.1	127.1-215.4	37	50	64±3	G11/2″	1200	1920	1170	1320
	8	116	3.3-5.6	116.5-197.8	37	50	64±3	G11/2″	1200	1920	1170	1320
	10	145	3.0-5.0	105.9-176.6	37	50	64±3	G11/2″	1200	1920	1170	1320
HYWV-45G	7	102	4.5-7.5	158.9-264.9	45	60	66±3	G11/2″	1320	1920	1170	1320
	8	116	4.0-6.8	141.3-240.1	45	60	66±3	G11/2″	1320	1920	1170	1320
	10	145	3.6-6.0	127.1-211.9	45	60	66±3	G11/2″	1320	1920	1170	1320
HYWV-55G	7	102	6.0-10.0	211.9-353.1	55	75	66±3	DN50	1520	1930	1320	1535
	8	116	5.4-9.0	191-317.8	55	75	66±3	DN50	1520	1930	1320	1535
	10	145	4.6-7.8	162.4-275.5	55	75	66±3	DN50	1520	1930	1320	1535
HYWV-75G	7	102	7.8-13.0	275.5-459.1	75	100	70±3	DN50	1620	1930	1320	1535
	8	116	7.2-12.0	254.3-423.8	75	100	70±3	DN50	1620	1930	1320	1535
	10	145	6.0-10.0	211.9-353.1	75	100	70±3	DN50	1620	1930	1320	1535
HYWV-90G	7	102	9.3-15.5	328.4-547.4	90	120	70±3	DN50	1800	1930	1320	1535
	8	116	8.4-14.0	296.6-494.4	90	120	70±3	DN50	1800	1930	1320	1535
	10	145	7.5-12.5	264.9-414	90	120	70±3	DN50	1800	1930	1320	1535
HYWV-110G	7	102	12.0-20.0	423.8-706.3	110	150	72±3	DN80	3100	2300	1600	1750
	8	116	10.8-18.0	381.4-635.7	110	150	72±3	DN80	3100	2300	1600	1750
	10	145	9.6-16.0	339-565	110	150	72±3	DN80	3100	2300	1600	1750
HYWV-132G	7	102	15.0-25.0	527.9-882.9	132	175	72±3	DN80	3250	2300	1600	1750
	8	116	13.8-23.0	487.3-812.2	132	175	72±3	DN80	3250	2300	1600	1750
	10	145	12.0-20.0	423.8-706.3	132	175	72±3	DN80	3250	2300	1600	1750
HYWV-160G	7	102	16.2-27.0	572.1-953.5	160	215	72±3	DN100	4500	2860	1600	1800
	8	116	15.3-25.5	540.3-900.5	160	215	72±3	DN100	4500	2860	1600	1800
	10	145	14.4-24.0	508.5-847.6	160	215	72±3	DN100	4500	2860	1600	1800
HYWV-185G	7	102	18.0-30.0	635.7-1059.4	185	250	74±3	DN100	4500	2860	1600	1800
	8	116	16.8-28.0	593.3-988.8	185	250	74±3	DN100	4500	2860	1600	1800
	10	145	15.0-25.0	529.7-882.9	185	250	74±3	DN100	4500	2860	1600	1800
HYWV-200G	7	102	21.6-36.0	762.8-1271.3	200	270	74±3	DN125	4800	3150	1850	2050
	8	116	19.8-33.0	699.2-1165.4	200	270	74±3	DN125	4800	3150	1850	2050
	10	145	16.2-27.0	572.1-953.5	200	270	74±3	DN125	4800	3150	1850	2050
HYWV-250G	7	102	25.8-43.0	911.1-1518.5	250	350	74±3	DN125	5200	3150	1850	2050
	8	116	24.6-41.0	868.7-1447.9	250	350	74±3	DN125	5200	3150	1850	2050
	10	145	22.8-38.0	805.2-1342	250	350	74±3	DN125	5200	3150	1850	2050

 

 

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Packing & Delivery

 

 

 

 

 

 

 

Workshop of natural gas compressor 
Our products 
Our Certificate : CE and ISO certification
Our exhibition for the gas compressor 
Our Service for diaphragm compressor : 
1.Service time : 24*7 Hours
2.Customized Service 
3.Perfect pre-sale,sale,after-sales service
4.FAT
5.Onsite commissioning Service
6.18 months warranty period

FAQ :
Q1.How about your after-sales service?
A: 1. Provide customers with intallation and commissioning online instructions.
2. Well-trained engineers available to overseas after-sales service.

Q2.What’s payment term?
A: T/T, L/C, D/P, Western Union, Trade Assurance and etc. Also we could accept USD, RMB, GBP, Euro and other currency.

Q3 : How long is your air compressor warranty?
A: Usually 1 year /12 Months for whole compressor machine, 2years/24months for air end (except maintenance spare parts.). And we can provide further warranty if necessary.

 

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Are There Specific Filtration Requirements for Oil-Free Compressors?

Yes, oil-free compressors have specific filtration requirements to ensure the quality and purity of the compressed air output. These filtration requirements are designed to address the unique characteristics of oil-free compressors and the potential contaminants that can be present in the intake air. Here’s a detailed explanation of the specific filtration requirements for oil-free compressors:

1. Pre-Filtration:

Pre-filtration is the first stage of filtration in oil-free compressors and is designed to remove larger particles, such as dust, dirt, and debris, from the intake air. These particles can enter the compressor and cause damage to internal components or affect the performance of downstream filtration stages. Pre-filters typically consist of pleated or mesh filters that capture particles of various sizes. The efficiency of pre-filters is usually specified in terms of their particle size removal capability, such as 5 microns or 10 microns.

2. Coalescing Filtration:

The coalescing filtration stage in oil-free compressors is responsible for removing smaller particles and coalescing water vapor into droplets for subsequent removal. This stage is crucial in ensuring that the compressed air remains free from fine particles and moisture, which can cause contamination and corrosion issues. Coalescing filters are designed with special media that capture and combine small particles and water droplets, allowing them to be easily separated from the compressed air. The efficiency of coalescing filters is typically specified in terms of their particulate removal capability and moisture removal efficiency, such as 0.01 microns and 99.9% respectively.

3. Activated Carbon Filtration:

Activated carbon filtration is often employed as a final stage in the filtration process of oil-free compressors. Activated carbon filters help eliminate odors and absorb any remaining oil vapors or hydrocarbons that might have bypassed the previous filtration stages. These filters contain activated carbon granules with a high surface area, allowing them to adsorb and trap odor-causing compounds and trace amounts of oil vapor. The efficiency of activated carbon filters is typically specified based on their odor removal capacity and oil vapor adsorption capacity.

It’s important to note that the specific filtration requirements for oil-free compressors may vary depending on the application and the desired air quality standards. Industries such as food and beverage, pharmaceuticals, electronics manufacturing, and painting often have more stringent filtration requirements to meet their specific air purity needs. In such cases, additional filtration stages, such as sterile filters or high-efficiency particulate air (HEPA) filters, may be incorporated to achieve the desired level of air quality.

Complying with industry standards and guidelines, such as ISO 8573, can provide guidance on the appropriate filtration requirements for oil-free compressors. These standards define specific limits for contaminants in compressed air, including oil content, particulate matter, and moisture, and can help determine the necessary filtration stages and their efficiency ratings.

By implementing the appropriate filtration requirements, oil-free compressors can ensure that the compressed air produced is clean, dry, and free from contaminants, meeting the specific air quality needs of various applications.

What Are the Energy Efficiency Benefits of Oil-Free Air Compressors?

Oil-free air compressors offer several energy efficiency benefits. Here’s a detailed explanation of the advantages of oil-free compressors in terms of energy efficiency:

1. No Energy Losses from Oil Carryover:

Oil-lubricated compressors require oil to lubricate the moving parts, which can result in oil carryover into the compressed air system. This oil carryover can lead to energy losses as it accumulates in filters, pipes, and other components. Oil-free compressors eliminate this issue by not using oil in the compression process, minimizing energy losses associated with oil carryover and reducing the need for additional energy-consuming filtration equipment to remove oil from the compressed air.

2. Reduced Friction and Mechanical Losses:

Oil-free compressors typically have advanced designs and technologies that minimize friction and mechanical losses during the compression process. The absence of oil eliminates the need for oil seals, lubrication systems, and associated energy-consuming components. This reduction in friction and mechanical losses improves the overall energy efficiency of the compressor, resulting in lower energy consumption and operating costs.

3. Optimized Air Delivery:

Oil-free compressors are designed to deliver compressed air directly without the need for additional oil removal equipment. This streamlined process eliminates the pressure drops and energy losses associated with oil separation and filtration. As a result, oil-free compressors can provide more efficient air delivery, ensuring that the compressed air reaches the intended applications with minimal energy losses.

4. Variable Speed Drive (VSD) Capability:

Many oil-free compressors are equipped with variable speed drive (VSD) technology, which allows the compressor to adjust its speed based on the actual demand for compressed air. By operating at lower speeds during periods of lower demand, VSD-equipped compressors can significantly reduce energy consumption compared to fixed-speed compressors that run at a constant speed regardless of the demand. VSD technology enables oil-free compressors to match the output precisely to the required compressed air load, resulting in energy savings and improved efficiency.

5. Improved System Control and Monitoring:

Oil-free compressors often come with advanced control and monitoring systems that enable precise management of the compression process. These systems allow for optimized operation, including load balancing, pressure control, and energy-saving modes. By closely monitoring and controlling various parameters, such as air pressure, temperature, and power consumption, the compressor can operate at the most energy-efficient levels, minimizing wasted energy and maximizing overall system efficiency.

6. Longer Service Life and Maintenance Intervals:

Oil-free compressors tend to have longer service life and maintenance intervals compared to oil-lubricated compressors. The absence of oil reduces the accumulation of deposits, contaminants, and wear on components, resulting in extended equipment life and reduced maintenance requirements. Longer service intervals mean less downtime for maintenance, allowing the compressor to operate at peak efficiency for longer periods, ultimately saving energy and reducing operational costs.

Overall, oil-free air compressors offer significant energy efficiency benefits due to reduced energy losses from oil carryover, minimized friction and mechanical losses, optimized air delivery, variable speed drive capability, improved system control and monitoring, and extended service life. These advantages make oil-free compressors an attractive option for industries and applications where energy efficiency and cost savings are paramount concerns.

Are Oil-Free Air Compressors Suitable for Food and Beverage Industries?

Yes, oil-free air compressors are highly suitable for the food and beverage industries and are widely used in various applications within these sectors. The clean and oil-free compressed air produced by these compressors is essential to maintain product quality, ensure food safety, and meet industry regulations. Here’s a detailed explanation of why oil-free air compressors are suitable for the food and beverage industries:

1. Preventing Contamination:

The primary advantage of oil-free air compressors in the food and beverage industries is the prevention of oil contamination. These industries have stringent hygiene and safety standards, and any contamination in the production process can compromise product quality and consumer health. Oil-free compressors eliminate the risk of oil particles entering the compressed air stream, ensuring that the compressed air used in various processes, such as packaging, filling, and bottling, is free from oil contamination.

2. Preserving Food Freshness:

Oil-free air compressors help maintain the freshness and quality of food products. In applications such as food packaging, where compressed air is used to create a protective atmosphere or seal packaging, the absence of oil eliminates the risk of oil residues affecting the taste, aroma, or shelf life of the packaged food. Oil-free compressors ensure that the compressed air used for these purposes is clean and does not introduce any unwanted flavors or odors.

3. Compliance with Food Safety Standards:

The food and beverage industries are subject to strict regulations and standards to ensure food safety. Oil-free air compressors help companies meet these requirements by providing clean, oil-free compressed air that adheres to food safety guidelines. Compressed air used in processes like air agitation, product drying, or pneumatic conveyance must be free from contaminants to prevent cross-contamination and maintain hygienic conditions throughout the production chain.

4. Minimizing Product Loss and Waste:

In the food and beverage industries, any product loss or waste can have significant financial and environmental implications. Oil contamination in compressed air can lead to product spoilage, resulting in costly product losses and waste. By using oil-free air compressors, the risk of product contamination is minimized, helping to reduce waste and improve overall production efficiency.

5. Ensuring Equipment Performance and Longevity:

Oil-free air compressors help protect sensitive food and beverage production equipment from oil-related issues. Oil contamination can damage pneumatic valves, seals, and other components, leading to equipment malfunction, unplanned downtime, and costly repairs. Oil-free compressors eliminate these risks, ensuring the longevity and reliable performance of the production equipment.

6. Meeting Industry-Specific Requirements:

The food and beverage industries have specific requirements for compressed air quality and purity. Oil-free air compressors are designed to meet these industry-specific requirements, often complying with standards such as ISO 8573-1 Class 0, which certifies the air as completely oil-free. This certification provides assurance that the compressed air meets the strictest quality standards and is suitable for critical applications in these industries.

By using oil-free air compressors, companies in the food and beverage industries can maintain the highest standards of product quality, hygiene, and safety. It is essential to select oil-free compressors specifically designed for these industries and follow proper maintenance protocols to ensure consistent performance and compliance with industry regulations.

<img src="https://img.hzpt.com/img/air-compressor/air-compressor-L1.webp" alt="China factory Factory Price 7.5kw~250kw Oil Free Water Lubrication Screw Air Compressor VSD for Industrial for Sale supplier “><img src="https://img.hzpt.com/img/air-compressor/air-compressor-L2.webp" alt="China factory Factory Price 7.5kw~250kw Oil Free Water Lubrication Screw Air Compressor VSD for Industrial for Sale supplier “>
editor by lmc 2024-09-09