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China Custom RS45 RS45n Tas 45kw CZPT Rand Oil Less Variable Speed Screw Air Compressor Water Cooled and Air Cooled lowes air compressor

Product Description

Ingersoll Rand Oil Less Variable Speed VSD Screw Air Compressor RS45n RS55n RS75n TAS

Model (water cooled & air cooled):

RS45n RS55n RS75n

Ingersoll Rand R-Series compressors offer the best of time-proven designs and technologies with advanced features to ensure the highest levels of reliability, efficiency and productivity.


Model Capacity
RS45n_A 2.0-8.5 7~10 A/C 380-415V/3PH/50HZ Xe-90
RS45n_W 2.0-8.5 7~10 W/C
RS55n_A 4.5-11.2 7~10 A/C
RS55n_W 4.5-11.2 7~10 W/C
RS75n_A 5.1-14.9 7~10 A/C
RS75n_W 5.1-14.9 7~10 W/C
RS45n_A TAS 2.0-8.5 7~9.5 A/C 380-415V/3PH/50HZ Xe-90
RS45n_W TAS 2.0-8.5 7~9.5 W/C
RS55n_A TAS 4.5-11.2 7~9.5 A/C
RS55n_W TAS 4.5-11.2 7~9.5 W/C
RS75n_A TAS 5.1-14.9 7~9.5 A/C
RS75n_W TAS 5.1-14.9 7~9.5 W/C

Crownwell’s shipment for CZPT Rand screw air compressors:

Lubrication Style: Oil-less
Cooling System: Water Cooled and Air Cooled
Power Source: AC Power
Cylinder Position: Horizontal
Structure Type: Closed Type
Installation Type: Stationary Type



Choose an Air Compressor for Your Business

There are several factors to consider when choosing an air compressor for your business. One factor to consider is the type of compressor you are looking for, which may include single-stage, low noise, and positive displacement. Hope this article helps you make the right decision. After all, your business success will depend on this device! Let’s take a closer look at these factors. Also, consider what compressor manufacturers say about their products.

Positive displacement

Positive displacement air compressors compress air by drawing in a volume from an inlet and extruding it out of a chamber. This increases the pressure at which the gas can be pumped at rates that cannot be pumped through the outlet at lower pressures at higher mass flow rates. These types of compressors are available in single-acting and double-acting configurations. They are classified by the number of cylinders.
There are two different types of air compressors: reciprocating air compressors and screw compressors. Both are roll machines. Positive displacement air compressors use pistons and cylinders to compress air. The resulting air pressure builds up within the compressor housing, increasing the potential energy of the compressed air. Screw air compressors are the most popular positive displacement air compressors, which can be either single-stage screw-blade air compressors or multi-stage screw-blade oil-immersed screw air compressors.
Positive displacement flowmeters use a rotating measuring chamber to divide the fluid into discrete quantities. The number of times the chamber was refilled and emptied was used to estimate the total flow. However, positive displacement flow meters are prone to leaks, reducing the accuracy of the estimates. If a leak occurs, it can cause false readings and damage the compressor. However, leaks in positive displacement air compressors can reduce pressure.
The most common types of positive displacement air compressors are screw, reciprocating, and vane. Rotary positive displacement air compressors are also available as well as many other air compressors. Positive displacement air compressors are most commonly used in large manufacturing facilities. If you are considering an air compressor for commercial or industrial applications, it is imperative to understand how the components of the unit work. Please read the information below to learn more before deciding which application is best for you.
Positive displacement air compressors use a piston to force air into a chamber, compressing the air in the process. The piston moves in the opposite direction, thereby reducing the volume of the chamber. When the amount of air in the chamber reaches its maximum value, the valve opens, allowing it to escape at higher pressure. Positive displacement air compressors are generally less efficient than centrifugal compressors. However, they are still an excellent choice for a variety of applications.


The discharge pressure of the single-stage air compressor is used to control the operation of the compressor. Properly designed load/unload controls allow the air compressor to operate at its most efficient point while minimizing stress on the main engine bearings. Single-stage air compressors can approach variable speed efficiency with appropriate storage capacity. However, improper storage can cause premature bearing wear on the main unit. If this is the case, a single-stage air compressor may not be ideal.
A single-stage air compressor has only one cylinder, which means one stroke is required to move air from one cylinder to another. Pressure is measured in cubic feet per minute or CFM. Tank size is also important as a large single-stage air compressor may be required to operate multiple air tools. Single-stage air compressors can be used in a variety of applications and can last for years.
For the most common uses, single-stage air compressors are the most practical option. These devices work with most hand tools, from hammers to grinders. Single-stage air compressors are lightweight and easy to move. However, two-stage air compressors provide more CFM, making them a better choice for industrial or commercial use. However, two-stage compressors are not suitable for private use. Therefore, if your main purpose is DIY and craft projects, it is better to choose a single-stage air compressor.
Compared with two-stage air compressors, single-stage screw air compressors are cheaper. They come from a variety of manufacturers and range in power from 3 to 600 horsepower. Single-stage air compressors are a cost-effective solution for a variety of air compressor needs. They offer flexibility and multiple control methods, making them an excellent choice for many different applications. Therefore, when choosing an air compressor for your business, choose the one with the most suitable functions.
Single-stage air compressors are the most affordable and easy-to-use air compressors for small to medium jobs. They also have higher compression ratios. The compression ratio is the ratio of absolute discharge pressure to absolute inlet pressure. When calculating the ratio, it takes into account atmospheric pressure and gauge pressure. The compression ratio pushes the surface area of ​​the rotor, which increases the thrust load.
Single-stage air compressors are smaller and easier to transport than two-stage units. Single-stage air compressors have one air intake, and two-stage air compressors have two air intakes. The difference between single-stage and two-stage air compressors largely depends on the number of times the air is compressed. A single-stage air compressor compresses the air once, while a dual-stage air compressor compresses the same amount of air twice.

low noise

Low noise air compressors are ideal for a variety of applications. While no air compressor is completely silent, some models are much quieter than others. For the Hitachi EC28M portable compressor, the noise level is 59 decibels. The compressor features steel rollers that protect the internal components and give it a sleek, modern look. It also has a one-gallon fuel tank and a half-horsepower drive.
Noise from air compressors can be distracting and reduce productivity. It is important to choose low-noise air compressors to keep employees healthy and happy at work. While noise is an unfortunate aspect of working on the shop floor, reducing it can improve productivity. By reducing distracting noise, employees can focus on their work and communicate more effectively. That means higher quality work and happier clients. If you’re looking for a low-noise air compressor, be sure to read the tips below.
Low noise air compressors are an excellent choice for businesses of all sizes. These powerful tools can run multiple tools simultaneously. The two water tanks are made of rust-resistant aluminum and are stackable. This air compressor is heavier and can handle large jobs with ease. It costs more than other air compressors, but it can handle a lot of work efficiently. CZPT Air Tools air compressors come with a one-year warranty and are highly recommended by contractors.
Noiseless air compressors are generally more expensive than comparable products, but they are worth the extra cost. Noiseless compressors are a good option for businesses that need to avoid disturbing nearby people. For example, you might want to consider a low-noise air compressor for a dental office, which cannot tolerate noise. Fortunately, this problem can be solved by relocating the compressor to a location that is more isolated from your workspace.
One brand of low-noise air compressors offers two models. The CZPT Air Tools 2010A features a large cast aluminum can, regulating pressure gauge, and two universal quick-connects. It produces 68 decibels of noise when it works. It has a large 8-gallon fuel tank capacity and has wheels and handles for easy transport. Its powerful engine produces a low noise level of 68 decibels.
Another popular low noise air compressor is the Makita MAC210Q Quiet Series. This model is capable of producing up to 71.5 decibels of sound, which is the amount of air it produces at 90PSI. The MAC210Q features a durable oil-free pump and weighs just 36 pounds with a handle and wheels. These compressors are easy to move and ideal for indoor work.
China Custom RS45 RS45n Tas 45kw CZPT Rand Oil Less Variable Speed Screw Air Compressor Water Cooled and Air Cooled   lowes air compressorChina Custom RS45 RS45n Tas 45kw CZPT Rand Oil Less Variable Speed Screw Air Compressor Water Cooled and Air Cooled   lowes air compressor
editor by CX 2023-06-06

China OEM 2 Stage Compression Pm VSD (Permanent magnet variable speed driven) Rotary Screw Air Compressor with high quality

Merchandise Description

two phase compression PM VSD (Everlasting magnet variable pace pushed) Rotary screw air compressor 

1. Firm introduces & advtanges of ZheJiang Great Air Compressor Production :

ZheJiang Fantastic Air compressor Co., ltd, is 1 foremost manufacture and exporter of air compressor in ZheJiang , China, Started 1957 years, coving an location of 200000 sq. meters. Now exporting to more than a hundred and twenty international locations. Has set up a huge income and support network at house and abroad.

GREAT’ s main items variety as blow:
-oil-injected rotary screw air compressor(fixed pace, variable speed medium & low force)
-portable rotary screw air compressor(diesel powered, electric motor driven)
– reduced strain screw air compressor
– outdoor screw air compressor 
– oil free screw blower(variable velocity)
-oil cost-free air compressor( scroll kind, dry type, water lubricated type)
-air remedy products( air dryer, air tanker, filers and so on.)

All of our machines are created for substantial realiable overall performance, easy servicing, and highest power performance. 


2. Goods introductions &advantages for  2 stage compression  screw air compressor :


Feature  for 2 stage compression screw air compressor :

The point out plainly classifies vitality efficiency levels restrict benefit. The 2 class  energy efficiency goods can conserve ten%~15% of the electricity than 3 class vitality performance items.and the 1 class energy effectiveness products  can preserve 10%~15% of the power than 2 class power effectiveness merchandise. power-preserving effect is remarkable .

Vitality -conserving theory :

  1. Curve twelve ‘3’ is an isothermal compression approach, it sort the area of 613 ‘4 with Y-axis which is the indicated work of isothermal compression
  2. Curve 123” is the 1 stage compression method, it form  the region 613 ”4 with Y-axis which is the indicator operate of the 1 stage compression.
  3. Curve 12, 22 ‘and 2′ 3 are the 2 stage compression process, and the sum of the spot 6125 and the location fifty two ’34 (6122’ 34) with Y-axis which is the indicator perform of the 2 stage compression.
  4. It can be observed from the diagram that the isothermal compression procedure 613 ‘4 area (indicating perform) is the smallest, but it is not possible to achieve isothermal compression in the air compressors’ true compression.

The 1 stage compression has the even bigger region of electrical power thirteen ‘3 than isothermal compression, whilst the 2 stage compression will save 22″ 33 “region of power.

Characteristics description:

  1. Oil injected screw air compressor can accomplish the normal electrical power method exhaust stress by only One stage compression. But from the see of vitality usage stage, the use of 2 stage of compression can successfully lessen energy use.
  2. So, ZheJiang Fantastic air compressor co., LTD. has introduced 2 stage compression of energy effectiveness screw air compressor. The 2 stage compressed-jet screw air compressor has far more potential of 12% to eighteen% than the single phase compressed injection screw  air compressor with the equivalent electricity. In other words and phrases, with the very same quantity of compressed air, the 2 stage compression can help save an common of fifteen% of electrical power in contrast with 1 stage compression
  3. 2 phase compression of oil injected screw equipment has the distinctive design and style of the air stop, it will combined the1 stage compression rotor and 2 stage compression rotor inside a chassis, make every single rotor can get best linear velocity by the equipment straight CZPT respectively, so the compression performance is greater. 

2 stage compression air compressor, consider the created-in spray curtain of cooling, CZPT impact is very good, significantly minimizes the temperature of compressed air, recognize the nearly isothermal compression, and can lessen the pressure loss of in between 1 class ~ 2 course, decrease compression ratio and enhance the compression effectiveness


  1. Following 1 stage compression, coolant by way of numerous jet hole on the entire body, type the mist jet shade, to amazing the hot 1 stage compressed air, drastically minimizes the compressed air temperature ahead of entering the 2 stage compression, which is in close proximity to to isothermal compression procedure, help save the power compression impact.
  2. Even without inter-phase cooling, 2 stage compression is more productive than solitary phase compression. This is simply because the quantity of air gets scaled-down soon after the 1 stage compression, so the 2nd stage compression can use a smaller diameter of the rotor, and the leakage charge of the device quantity is little.
  3. Reduce interior leakage: use 2 stage compression, minimize the compression ratio of every compression, reduce the leakage from the large pressure facet to the reduced stress aspect per class, and improve the quantity efficiency.
  4. Sounds reduction: the compression ratio of each and every compression is lowered by taking 2 stage compression, which greatly lowers the sounds, particularly the unloading sound
  5. 2 phase compression unit, besides for screw air conclude, the other method and framework arrangement of the unit is basically the same as the solitary stage compression, which is convenient for the upkeep and utilization to the user.
  6. For users  who need  large air consumption and repeatedly use, need to just take priority to use of a 2 phase compressed  1 class power effectiveness air compressor

TKL- Sequence of 1 class vitality effectiveness air compressor with 2 class,3 class vitality efficiency comparation:

  1. In contrast with the 2 class energy effectiveness air compressor unit, the electrical energy conserving value is: Power saving for every hour(6.twelve-5.forty five)*forty one.4=27.738KWH  saving for 8000 hours $27.738*8000*$.12=$26629
  2. In comparison with the 3 class vitality effectiveness air compressor unit, the electricity conserving price is: Strength cost savings for each hour (7.037-5.45)*4.14=65.7018KWH preserving for 8000 hours $sixty five.7018 *8000*$.12=$63074



three.Specialized Parameters for  Fantastic 2 stage compression PM VSD  screw air compressor:

four.Application :

six.Certification :

7. FAQ : 
Q1: Are you factory or trade business?  
A1: We are manufacturing unit.
Q2: Guarantee phrases of your equipment? 
A2: One particular year warranty for the device and technological assist according to your needs.
Q3: Will you provide some spare parts of the equipment? 
A3: Of course, of training course.
This autumn: How lengthy will you get to prepare production? 
A4: 380V 50HZ we can delivery the merchandise within twenty times. Other electrical power or other color we will supply within 30 days.
Q5: Can you accept OEM orders? 
A5: Yes, with specialist design and style staff, OEM orders are extremely welcome!

8. Make contact with :


Kinds of Air Compressors

There are numerous sorts of Air Compressors accessible on the market. Understand which 1 is appropriate for your needs and what makes 1 better than an additional. Discover out far more about One-phase versions, Oil-cost-free types, and Lower-sound types. This report will explain these kinds and support you decide which one you need to have. You can also learn about Air Compressors that have single-phase compressors. If you are seeking for a substantial-high quality compressor, this write-up will assist you choose a device.

Air Compressors

Air compressors operate by forcing atmospheric air by way of an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder via an exhaust valve. 1 of the most frequent types of air compressor is the reciprocating type. One more kind of compressor is a single-stage piston. These varieties of compressors compress air in a single stroke – equal to the complete rotation of the piston’s crankshaft.
These gadgets adjust electrical or mechanical vitality into pressurized air. When air is compressed, its volume decreases, rising its pressure. Air compressors typically have a minimum pressure of thirty bars. The lower pressure band is the selection of air pressure. Most compressors are managed independently, but network controls can be employed to interconnect numerous compressors. This sort of controller will not work for all varieties of compressors. There are other varieties of air compressors that can connect with every single other.
Compressed air has multiple apps in all sorts of industries. In agriculture, it can electrical power pneumatically driven material managing machines for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also used in the pharmaceutical industry for mixing tanks, packaging, and conveyor programs. Portable air compressors, which can be run by diesel gas, are often used at distant drilling web sites. Moveable air compressors are also frequently utilized in oil and fuel. They can be employed to remotely management valves and set up reactor rods.
Whether you use an air compressor for agricultural needs or in a producing environment, there are some characteristics to take into account when picking an air compressor for your wants. A good compressor will have a security device. It will immediately shut off the input air and output air as soon as adequate compressing has been reached. These functions will assist your air compressor continue to be efficient and defend your tools. The protection system is an crucial function of any air compressor to enhance its overall effectiveness.
Vane air compressors are the most typical sort. They are generally more compact and less powerful than reciprocating piston compressors, so you can use 1 of these for purposes that are under 100 horsepower. The vane air compressors have low compression ratios and large capacities, but they are typically minimal to lower-electrical power apps. Vane compressors are inclined to run sizzling, and they generally have a minimal compression ratio. It is important to select the appropriate oil viscosity for your compressor.

Solitary-phase models

When comparing single-stage air compressors, seem for the phrase “phases.” Multi-phase compressors use two stages and can deal with much more capability and force. 1 phase involves pressurizing air employing a piston and a reduced-pressure cylinder. This compressed air is then moved to a storage tank. One-phase types are inclined to be far more vitality-productive than their two-stage counterparts. But if you don’t require a large-strain cylinder, a solitary-stage air compressor can be the very best selection.
Although one-phase air compressors create significantly less power, they can create ample air to power pneumatic resources and other pneumatic gear. These solitary-phase units are most valuable for more compact-scale house assignments and Do-it-yourself tasks. For a lot more industrial purposes, a twin-phase design is the best option. But if you’re in a hurry, a solitary-stage unit could be ample. In the long run, it depends on what you plan to do with the air compressor.
Single-phase air compressors attribute a one cylinder, 1 piston stroke for each revolution of pressurized air. Solitary-phase compressors are normally smaller sized and more compact, producing them a good option for more compact function environments. Their cfm capacity (cubic feet per moment) is an crucial indicator of working capacity. If you plan to use multiple pneumatic resources, you will most likely want a increased cfm model. Equally, the horsepower of solitary-stage compressors suggests its operating capability. One horsepower moves 550 lbs per foot for every moment.
Multi-phase air compressors are generally a lot more high-priced and a lot more vitality-successful than single-phase units, but they can offer increased air stream charges. While they could be more intricate, they can reduced general running bills. If you strategy on using your air compressor for industrial or commercial use, a dual-stage model may possibly be the best decision. Nevertheless, if you’re planning to use the air compressor for mass generation, a solitary-phase product may be the very best option.
Single-stage air compressors have the same piston measurement and quantity of inlets, whilst twin-phase models have a smaller sized initial piston and a a lot more time 2nd piston. Equally have a cooling tube in between the two pistons to minimize the air temperature before the next round of compression. The solitary-phase model is usually little and moveable, while the double-stage air compressor is stationary. These compressors can both be stationary and large.

Reduced-sounds versions

In spite of its title, lower-noise designs of air compressors are not all the very same. The sound amount of a compressor can be influenced by many aspects, including the energy supply and proximity to the machine. Reciprocal compressors are generally louder than electric kinds because of their many shifting areas. By contrast, rotary-screw and scroll compressors have much less transferring components and are quieter.
The noise level of a gas-run air compressor can be very higher, producing it unsuitable for use indoors. To fight this difficulty, you can pick an electrical model. The noise level of a compressor is mainly caused by motor friction. The protect of a piston is also a significant aspect in noise, as pistons with minimal covers will generate a whole lot of sound. Earlier, oil was needed for a peaceful compressor. Even so, this has altered many thanks to the medical industry’s desire for oil-totally free designs.
The Nuair EC28M Tranquil Air Compressor is yet another design that functions tranquil procedure. This air compressor tends to make 59dB of sound. This stage is reduced adequate to permit you to have on typical conversations whilst it cycles. In addition, this compressor has an industrial oil-free pump and a 2.8 Amp direct-travel induction motor. These two attributes make it a great decision for organizations.
Reduced-noise designs of air compressors are accessible for the design business. Nevertheless, these compressors are not necessarily lower-good quality, which is why you ought to consider the noise amount of your air instrument before acquiring a single. The experts at Mid-Tech can advocate the minimal-sound versions for your certain application and room. Noise can distract people who work in close proximity to the air compressor. That is why several organizations now choose for these designs.

Oil-totally free designs

A number of oil-free of charge types of air compressors are accessible, but what helps make them particular? Oil-free of charge compressors don’t include oil, so they are lubricated by grease instead. They’re a great selection if you are doing work with a little compressor and will not want to threat harmful it. On the other hand, oil-free of charge designs do make important amounts of heat, which can harm the compressor. Larger strain can grind the compressor in opposition to itself, or even warp it.
A few terms of information can support you choose the very best oil-cost-free air compressor for your wants. For instance, a compressor’s horsepower is a measurement of how powerful the motor is. Increased horsepower means a higher PSI or ACFM. You can also use the ACFM to compare the two. Scroll technological innovation is a modern air compression system that makes use of a stationary and cellular spiral. This minimizes the quantity of air in the compressor by directing it to the heart.
Buying an oil-free air compressor will not have to be a daunting process, though. A very good distributor can recommend you on what kind of oil-free of charge air compressor is correct for you. This way, you can help save cash and enjoy peace of brain whilst making use of your air compressor. And, of program, the best way to get a fantastic offer on an air compressor is to communicate to a distributor who is well-informed about the products accessible.
An oil-totally free air compressor is a wonderful alternative for companies that are delicate to the contamination of air. For instance, in the pharmaceutical and foodstuff market, a minuscule oil could spoil a item or even harm manufacturing tools. Oil-totally free air compressors typically have reduce maintenance fees than oil-flooded versions simply because there are much less shifting components. Due to the fact of this, oilless air compressors need much less upkeep and may even now require to be replaced occasionally.
A number of positive aspects of an oil-free air compressor in excess of an oil-lubricated 1 incorporate lower noise stages. Oil-cost-free air compressors tend to be significantly less noisy and run much more quietly than oil-injected kinds, but you must even now cautiously weigh the professionals and cons before creating a decision. Also, take into account how considerably you use your air compressor prior to deciding on a model. The pros outweigh the cons. In the conclude, you are going to be glad you selected an oil-free of charge air compressor.

China OEM 2 Stage Compression Pm VSD (Permanent magnet variable pace pushed) Rotary Screw Air Compressor     with substantial top qualityChina OEM 2 Stage Compression Pm VSD (Long term magnet variable speed driven) Rotary Screw Air Compressor     with large top quality