Tag Archives: dry air compressor

China Professional Water Lubricated Oil Free 22kw Dry Scroll Rotary Screw Air Compressor Environmental Friendly Industrial Pollution-Free Medical with Hot selling

Product Description


Product name

Oil Free Water Lubricated Screw Air Compressor



Cooling Method

Air Cooling


8/1013 bar


5.5-250 kw


0.3~33.97 m3/min


380V/50HZ, 220V/60HZ, 400V/50HZ, 415V/50HZ or Customer′s Requirements




1.Clean air 100% oil-free
2.Use water instead of oil, higher cooling efficiency and compression efficiency
3.Optimal isothermal compression
4.Powerful MAM microcomputer controller and touch screen
5.Reasonable Structure, with perfect balancing
6.Components made of anti-rust and anti-corrosion materials ensure the durability
7.Significant energy saving, environmental-friendly and pollution-free
8.Designed especially for medical, pharmacy, instrument, coating, chemical industry and food processing, etc.

Model Pressure
Water Inlet Diameter Lubricating Water
Air Outlet
WLS-0.8/5.5 0.8 0.3-0.78 5.5 57 3/4″ 10 3/4″
WLS-1.0/5.5 1.0  0.2-0.65
WLS-0.8/7.5 0.8 0.35-0.17 7.5 57 3/4″ 10 3/4″
WLS-1.0/7.5 1.0  0.3-1.05
WLS-1.25/7.5 1.25 0.24-0.81
WLS-0.8/11 0.8  0.54-1.72 11 60 1″ 26 3/4″
WLS-1.0/11 1 0.45-1.42
WLS-1.25/11 1.3  0.35-1.10
WLS-0.8/15 0.8 0.75-2.43 15 60 1″ 26 1″
WLS-1.0/15 1.0  0.65-2.17
WLS-1.25/15 1.25 0.6-1.80
WLS-0.8/18.5 0.8  0.9-3.31 18.5 63 1″ 30 1″
WLS-1.0/18.5 1 0.9-2.82
WLS-1.25/18.5 1.3  0.6-2.05
WLS-0.8/22 0.8 1.1-3.7 22 63 1″ 30 1″
WLS-1.0/22 1.0  0.97-3.21
WLS-1.25/22 1.25 0.85-2.87
WLS-0.8/30 0.8  1.55-5.2 30 63 1 1/2″ 40 1 1/2″
WLS-1.0/30 1 1.255-4.43
WLS-1.25/30 1.3  1.1-3.63
WLS-0.8/37 0.8 1.91-6.50 37 66 1 1/2″ 40 1 1/2″
WLS-1.0/37 1.0  1.6-5.53
WLS-1.25/37 1.25 1.42-4.47
WLS-0.8/45 0.8  2.5-8.3 45 66 1 1/2″ 90 2″
WLS-1.0/45 1 1.91-6.3
WLS-1.25/45 1.3  1.7-5.56
WLS-0.8/55 0.8 3.0-10.3 55 69 1 1/2″ 100 2″
WLS-1.0/55 1.0  2.6-8.55
WLS-1.25/55 1.25 2.3-7.67
WLS-0.8/75 0.8  3.95-13 75 72 1 1/2″ 100 2″
WLS-1.0/75 1 3.4-11.5
WLS-1.25/75 1.3  3.0-9.7
WLS-0.8/90 0.8 5.0-16.6 90 73 1 1/2″ 120 2 1/2″
WLS-1.0/90 1.0  4.3-14.66
WLS-1.25/90 1.25 3.72-12.6
WLS-0.8/110 0.8  6.0-20.2 110 77 2″ 120 2 1/2″
WLS-1.0/110 1 5.0-16.66
WLS-1.25/110 1.3  4.65-15.56
WLS-0.8/132 0.8 6.75-22.52 132 77 2″ 120 2 1/2″
WLS-1.0/132 1.0  6.0-19.97
WLS-1.25/132 1.25 5.07-16.90
WLS-0.8/160 0.8  8.5-28.11 160 79 3″ 160 3″
WLS-1.0/160 1 7.6-25.45
WLS-1.25/160 1.3  6.7-22.52
WLS-0.8/185 0.8 10-33.97 185 79 3″ 160 3″
WLS-1.0/185 1.0  8.72-29
WLS-1.25/185 1.25 7.75-25.21
WLS-0.8/200 0.8  11.2-36.75 200 80 4″ 200 4″
WLS-1.0/200 1 9.68-32.78
WLS-1.25/200 1.3  9.2-29.24
WLS-0.8/250 0.8 13.5-45 250 80 4″ 200 4″
WLS-1.25/250 1.3  10.2-33.97

ZheJiang CZPT Gas Compressor Manufacturing Co.,Ltd. founded in 2005, is a leading high technology of machine and equipment manufacturer integrating the design, R&D, production, sales and service for air compressors & Mining Equipment. Adopting advanced technology, design concept and quality control, and we are able to provide customized products to meet customers’ OEM needs.
Our company has more than 520 employees, including 86 senior technicians and professional engineers. Our technical team provides our customers with professional air system solutions. With the total 15000 square meters of the facility, 4 modern advanced production lines are built up to ensure production capacity to meet customer requirements.
Our company has been awarded the honorary title of “ZheJiang high-tech enterprise” and our products enjoy high honors in the industry. Our company has the ISO9001 certification and was awarded the qualification certificate of equipment through military contracts in 2018.
We offer the following products and services:
1. Screw air compressor
    1.1 Oil-free screw air compressor
    1.2 Oil-injected air compressor
2. Reciprocating piston air compressor
    2.1 Piston air compressor
    2.2 Oil-free piston air compressor
    2.3 Piston medium & high-pressure air compressor
3.Portable air compressor & Mining Equipment
    3.1 Diesel or Electric portable screw air compressor
    3.2 Air Pick, Rock Drill, DTH Drilling Rig, Crawler Drilling Rig
4. Air compressor accessories
    4.1 CZPT or Adsorption compressed air drier
    4.2 Compressed air filter or tank
4.3 Lubrication oil
We have a complete system of after-sales service and quality assurance. The company’s material purchase, inspection, manufacturing, installation, and testing are strictly in accordance with the ISO procedures. which will ensure each compressor has reliable quality and has a complete record to trace, if needed.

Q: Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

Q: How can we start order with your factory?
A: First, leave us an inquiry and advise which item you’re interested, and then we will contact you in 24 hours. You’re so kind if provide all detailed information, will better for us to know exactly what you need.

Q: What are your MOQ?
A: Different products have different MOQ, most is 1 set.

Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages.

Q: How about your delivery time?
A: Generally, it will take 90 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q: Do you a trade company or real factory?
A: We are 100% factory; we located in ZheJiang city, China.

After-sales Service: Online Support
Warranty: Unit 1 Year, Air End 2 Years
Lubrication Style: Oil-free
Cooling System: Water Cooling
Power Source: AC Power
Structure Type: Closed Type



How to Choose the Right Air Compressor

An air compressor uses pressurized air to power a variety of tools. They are most commonly used to power nailers and impact wrenches. Other popular uses for air compressors include paint sprayers and impact wrenches. While all air compressors have the same basic construction, their specialty differs. Ultimately, their differences come down to the amount of air they can push. Read on for information on each type of air compressor. These tools are great for many different purposes, and choosing the right air compressor depends on your specific needs.

Electric motor

While purchasing an electric motor for air compressor, compatibility is a key factor. Not all motors work with the same type of air compressor, so it’s important to check the manufacturer’s instructions before purchasing. By doing this, you can avoid wasting money on an incompatible motor. Another important consideration is speed. A motor’s speed is its rate of rotation, measured in revolutions per minute. It is critical that you purchase a motor with sufficient speed to meet the needs of your air compressor.
Typically, an electric motor for air compressor is 1.5 hp. It is ideal for use with medical equipment and metal-cutting machines. It also performs well under continuous operation and offers a high efficiency and energy-saving performance. Moreover, it features an attractive price, making it a good choice for a wide range of applications. If you are looking for a motor for an air compressor, look no further than a ZYS series.
A motor’s protection class indicates how the motor will operate. Protection classes are specified by the IEC 60034-5. These are stated with two digits and represent the protection against solid objects and water. For example, an IP23 rating means that the motor will be protected from solid objects, while IP54 means that it will protect from dust and water sprayed from all directions. It is vital to choose a motor with the correct protection class for your air compressor.
When choosing an electric motor, you should consider whether it’s compatible with the brand of air compressor. Some may be compatible, while others may require advanced electronics skills to repair. However, most air compressors are covered by warranty, so it’s important to check with the manufacturer if the warranty is still in effect before you spend a dime on a replacement. The motor should be replaced if it has failed to perform as designed.

Oil bath

Air compressors require proper lubrication to function efficiently. The piston must draw air with minimal friction. Depending on their design, air compressors can either be oil-lubricated or oil-free. The former uses oil to reduce piston friction, while the latter splashes it on the cylinder bearings and walls. Such air compressors are commonly known as oil-flooded air compressors. In order to keep their oil baths clean, they are recommended for use in locations with high dust levels.

Start/stop control

An air compressor can be controlled by a start/stop control. This type of control sends a signal to the main motor that activates the compressor when the demand for air falls below a preset limit. This control strategy is effective for smaller air compressors and can be useful for reducing energy costs. Start/stop control is most effective in applications where air pressure does not change frequently and where the compressor is not required to run continuously.
To troubleshoot this problem, you need to check the power supply of your compressor. To check the supply side, use a voltage monitor to determine if power is flowing to the compressor. Ensure that the power supply to the compressor is steady and stable at all times. If it fluctuates, the compressor may not start or stop as expected. If you cannot find the problem with the air compressor power supply, it may be time to replace it.
In addition to the start/stop control, you may want to purchase additional air receivers for your air compressor. These can increase the capacity of air stored and reduce the number of times it starts and stops. Another way to decrease the number of starts per hour is to add more air receivers. Then, you can adjust the control to match your requirements. You can also install a pressure gauge that monitors the compressor’s performance.
Start/stop control for air compressors can be complex, but the basic components are relatively easy to understand. One way to test them is to turn the compressor on or off. It is usually located on the exterior of the motor. If you’re unsure of the location of these components, check the capacitors and make sure that the air compressor is not running while you’re not using it. If it does, try to remove the capacitor.
Variable displacement control is another way to adjust the amount of air flowing into the compressor. By controlling the amount of air, the control can delay the use of additional compressors until more required air is available. In addition to this, the device can also monitor the energy used in the compressor. This control method can result in substantial energy savings. You can even save on the amount of electricity by using variable displacement control. It is essential for efficient compressed air systems.

Variable speed drive

A VFD, or variable frequency drive, is a type of electric motor that adjusts its speed to match the demand for air. It is an efficient way to reduce energy costs and improve system reliability. In fact, studies have shown that a 20% reduction in motor speed can save up to 50% of energy. In addition, a VFD can monitor additional variables such as compressor oil pressure and motor temperature. By eliminating manual checks, a VFD will improve the performance of the application and reduce operating costs.
In addition to reducing energy costs, variable-speed drives also increase productivity. A variable-speed air compressor reduces the risk of system leaks by 30 percent. It also reduces the risk of system leaks by reducing pressure in the system. Because of these advantages, many governments are promoting this technology in their industries. Many even offer incentives to help companies upgrade to variable-speed drives. Therefore, the variable-speed drive can benefit many air compressor installations.
One major benefit of a variable-speed drive is its ability to optimize energy use. Variable frequency drives are able to ramp up and down to match the demand for air. The goal is to optimize the pressure and flow in the system so that the best “dead band” occurs between forty percent and eighty percent of full load. A variable-speed compressor will also increase energy efficiency because of its programmability.
A variable-speed air compressor can also be used to control the amount of air that is compressed by the system. This feature adjusts the frequency of power supplied to the motor based on the demand. If the demand for air is low, the frequency of the motor will reduce to save energy. On the other hand, if there is an excess demand for air, the variable-speed compressor will increase its speed. In addition, this type of air compressor is more efficient than its fixed-speed counterpart.
A VFD has many benefits for compressed air systems. First, it helps stabilize the pressure in the pipe network, thereby reducing the power losses due to upstream pressure. It also helps reduce the power consumption caused by fluctuations in upward pressure. Its benefits are also far-reaching. And as long as the air pressure and air supply is properly sized, a VFD will help optimize the efficiency of compressed air systems.

China Professional Water Lubricated Oil Free 22kw Dry Scroll Rotary Screw Air Compressor Environmental Friendly Industrial Pollution-Free Medical   with Hot sellingChina Professional Water Lubricated Oil Free 22kw Dry Scroll Rotary Screw Air Compressor Environmental Friendly Industrial Pollution-Free Medical   with Hot selling
editor by CX 2023-05-12

China best 100% Dry Oil Free/Non-Lubricated Permanent Variable Speed 7/8/10bar Screw Air Compressor for Food/Pharmaceutical/Medical Industry with Best Sales

Merchandise Description

one. Our Workshop

2. Our Popular Merchandise

3. Why decide on us


Steady screening for many a long time can ensure the complete reliability of permanent magnet frequency conversion.
Entirely sealed oil CZPT shell can fully avoid dust and liquid.
Ideal efficiency satisfy the customer’ s need of buying the most reasonably priced repairable element.

two.Vitality saving.

In comparison with non variable pace screw air compressor,it can preserve 50% strength.
 Large displacement. variable frequency range from OHZ to 300HZ the exhaust volume raises as higher as 28%.
Large performance motor (IPM) can up to 94. 5%. and obtain the efficiency level of IE4.

three.Large efficiency 

In comparison with other companies in the production of common frequency conversion machine . our air compressor can preserve about 6%-7% vitality.
In the air compressor lifestyle cycle. the total fees are composed of the price of purchase matainance and vitality. Frequency conversion management technique can minimize vitality consumption, as a result reduce the total price of air compressor .

4.New modify

Adopting the new principle of frequency conversion air compressor accomplish the optimum strength saving impact in this sector .
A lot more compact design, far more closed entire body, significantly less sounds, considerably less flooring
Major the potential route of the air compressor, institution the industry expectations. to offer buyers with the value of strength.


4. Our certificates

five. FAQ

Q1: Are you factory or trade business? 
A1:Indeed,we are manufacturing unit.Thank you.

Q2 : What’s your factory’s production capability?
A2: About one thousand units for every working day.Thank you.

Q3: Warranty conditions of your equipment? 
A3: One particular year for whole device, 2 many years for air stop, complex assist for existence.Thank you.

This autumn: Will you provide some spare areas of the devices? 
A4: Yes, of training course.Thank you.

Q5:In which is your manufacturing facility located?
A5:Our factory is located in ZheJiang HangZhou metropolis which nears HangZhou port about 4 hours.Thank you.

Q6: Can you acknowledge OEM orders? 
A6: Of course, with expert style crew, OEM orders are very welcome.Thank you.

Q7: How much can you help save if you purchase our screw air compressor?
A7: Generation of compressed air energy consumption could be more thaconsumption, can drastically reduce strength intake, VS conon actual fuel usage, decrease the additional 44% to twenty five% of the strength preserving software.

Thanks to the distinct freight costs in every single country, you are welcome to contact us for certain freight charges.


What to Look For When Getting an Air Compressor

An air compressor is a extremely valuable instrument that can support you comprehensive numerous different kinds of construction jobs. This handy device can make a lot of duties significantly less complicated, but not all of them are designed equally. Understanding what to appear for when getting an air compressor will assist you make an knowledgeable decision. Below are some of the things you should seem for. These contain value, dimension, and power efficiency. Also, make certain to think about the air compressor’s kind.

Single-stage air compressors are quieter

When it arrives to sounds amount, single-phase air compressors are the way to go. These devices have fewer transferring areas and are quieter than two-phase models. One-stage air compressors use an axial stream style and can be quieter than their twin-phase counterparts. One-phase air compressors can run more time and at reduced pressures. Single-phase air compressors can be used for mild industrial programs. They have a lengthy daily life expectancy, with some models long lasting for in excess of a few thousand several hours.
Although some one-phase air compressors are quieter than two-phase air compressors, each models have noise-reduction features. One variety characteristics rubber parts, which are created to dampen sound. An additional function makes a compressor quieter: its spot in close proximity to the occupation site. Some models attribute rubber foundation plugs and rubber mats to minimize flooring vibrations. In addition to using these features, solitary-stage compressors are less complicated to transportation.
Noise ranges are crucial when picking an air compressor. Some machines are way too noisy for relaxed perform, and some companies will not want to expose clients to noise-making air compressors. Other sounds ranges can even endanger workers’ overall health. One-stage air compressors are a lot more inexpensive than twin-stage compressors. They are also quieter and far more powerful. But be well prepared for the sounds. Some solitary-stage air compressors are nonetheless noisy.
In contrast to their two-stage counterparts, one-stage compressors are quieter when managing at total ability. Even so, double-stage compressors are quieter on minimal capacities than single-stage models. Individuals with variable velocity are quietest at decrease capacities. The variation is about 10db. If you happen to be worried about the sounds amount, you should take into account a two-phase air compressor. But if you have a little workshop, it could not be ideal for you.
1-stage air compressors are usually far more effective than two-stage air compressors. The sounds from a two-stage air compressor is reduce because there’s no intermediate phase. One-phase air compressors also use a piston that rotates in a single stage, whilst dual-stage air compressors, also recognized as duplex designs, are far more productive. A solitary-stage air compressor is quieter, but double-stage compressors are louder.

Two-phase air compressors are more power efficient

Two-stage air compressors are more energy-productive than one-stage equipment. The performance of two-stage air compressors is improved via a combination of improved efficiency and improved longevity. These machines can keep a lot more air and have larger compression ratios. A single design of a two-stage compressor can hold approximately eighty three cubic ft of air at a hundred PSI and 120 cubic toes at one hundred fifty PSI. A two-stage compressor is also quieter.
Two-stage air compressors are a lot more energy-effective because they have two pistons instead of 1. These air compressors achieve a greater stress rating and get better a lot more speedily. This sort of compressor is perfect for positions that require high air strain for a extended interval of time. In addition, they can operate several resources simultaneously. This can make them greater for business and industrial use. Shown under are some positive aspects of two-phase air compressors.
One-phase air compressors can power equipment in the garage or kitchen, but they are not as reliable for industrial purposes. One-phase compressors have more substantial elements that have a tendency to expertise condensation. Additionally, solitary-phase compressors do not final prolonged in ongoing use and are less vitality-efficient than two-stage kinds. Whether you’re making use of the compressor for a one tradesperson, a small crew, or a huge construction crew, two-phase compressors are the very best option.
Single-phase air compressors are frequently utilized in modest-scale meals preparation and generation. One-stage air compressors are easy to transportation in between places, and can be plugged into numerous electrical shops. Single-stage compressors are also best for substantial-volume foods processing. A twin-stage air compressor is excellent for industrial use. In some cases, you can even transfer the solitary-stage air compressor in between two-stage air compressors.
Single-phase compressors typically cycle way too swiftly, drawing much more electric power than two-stage models. A variable speed device stays on a reduced velocity for hrs at a time. One-stage air conditioners force you to lower your thermostat configurations while solitary-phase air conditioners run as well often. Each models are power-productive but they are not as strength-productive as variable-speed compressors. The primary big difference is that one-stage air conditioners have a tendency to drain the energy resource quicker.

Piston-driven air compressors are quieter

A piston-driven air compressor is one of the quietest varieties of air compressors. It is significantly less noisy than reciprocating air compressors. A piston-driven air compressor can reach 62 decibels, although a scroll compressor is about 50 percent that quantity. The two principal parts of a scroll air compressor are the piston and the helical screw. These air compressors are the two really successful and peaceful.
More mature compressors are incredibly noisy. They create a “wumpa” sounds equivalent to a large engine. They are also capable of creating a high-pitched whine. These noises can be deafening, particularly in a modest workshop. That is why it’s important to search for a quiet compressor. But what tends to make a compressor silent? Read on to find out much more about this essential tool.
One more variation in between piston-pushed air compressors and electrical-pushed air compressors is the electrical power supply. Electric powered air compressors generate considerably less sounds than gasoline-driven compressors, which use an engine. Piston-pushed air compressors are also a lot more efficient. They also make considerably less heat, creating them an best selection for workplaces and other options exactly where sounds is a problem. The greatest way to choose among the two kinds of air compressors is to check the manufacturer’s guarantee and read through the ‘Description’.
Sounds reduction is the 1st precedence of a compressor’s owner, so make confident that you have the right product. If you are working on some thing delicate, never place the compressor also near to a constructing in which people might be nearby. Sound can be extremely disruptive to the workspace and can cause health problems. To support overcome sound, you may want to get a quiet air compressor. And do not fail to remember to consider its location: Piston-pushed air compressors are quieter than their reciprocating counterparts.
Piston-driven air compressors are quiet since the piston is made of slim metallic and more rubber, which absorbs the audio. In contrast to reciprocating air compressors, piston-pushed air compressors are a lot more successful than their dual-piston cousins, which are quieter and a lot more powerful. So which variety is proper for you? Just take a seem at some of the primary distinctions amongst the two. If you want a tranquil compressor, make certain it fulfills the requirements needed by the task you might be operating on.

Oil-lubricated air compressors are far more expense-powerful

There are numerous factors why oil-lubricated air compressors are a lot more pricey than dry-sort air compressors. Initial of all, oil-lubricated air compressors have a tendency to be a lot more reputable and peaceful. Furthermore, oil-lubricated air compressors demand fewer parts and can last for a longer time than dry-sort air compressors. These are just a handful of of the many positive aspects of utilizing oil-lubricated air compressors.
Oil-cost-free air compressors have some drawbacks. They are much less resilient and may not be as effective as oil-lubricated versions. Furthermore, due to the fact oil-lubricated air compressors use oil, they can get quite noisy. Even though they are significantly less high-priced, they are not the ideal option for weighty-responsibility work. However, contemporary oil-totally free air compressors have soundproofing and are appropriate for industrial use.
When acquiring an oil-lubricated air compressor, make positive to choose one with a tank capacity that meets your needs and your place. Bigger tanks can be more pricey than modest tanks, but bigger units are less difficult to shift all around. Also, be positive to think about the fat and size of the portable air compressors when creating your selection. If the excess weight is also massive, you might have trouble carrying it from location to area.
One more advantage of making use of oil-lubricated air compressors is their decreased require for oil. These models can last up to a ten years for a longer time than oil-totally free counterparts. Oil-free of charge air compressors are more reasonably priced and can attain the very same higher functionality as their oil-lubricated counterparts. Several industrial purposes benefit from these air compressors. So, which 1 is proper for you? We’ve listed a couple of of them under.
Yet another reward of picking an oil-lubricated air compressor is the reduced price of servicing. This variety is a lot more resilient than its oil-lubricated counterparts, which need typical oil alterations to hold them working easily. However, it is not feasible to transport an oil-lubricated compressor, which indicates that you have to put in it permanently to hold it functioning efficiently. In addition, these air compressors are tough to shift and are not transportable, which can limit your capability to use it in a pinch.

China best 100% Dry Oil Free/Non-Lubricated Permanent Variable Speed 7/8/10bar Screw Air Compressor for Food/Pharmaceutical/Health care Sector     with Best Product salesChina best 100% Dry Oil Free/Non-Lubricated Permanent Variable Speed 7/8/10bar Screw Air Compressor for Food/Pharmaceutical/Health-related Industry     with Very best Revenue