China Professional Oil Free Centrifugal Compressor Manufacturers wholesaler

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Product Description


Product Description

Technical Parameters

Centrifugal Compressor UCTC Series
Model UCTC60 UCTC90 UCTC150 UCTC200 UCTC250 UCTC450 UCTC650 UCTC1000
Rate of flow        (Lm³/hr) 2300~5500 5500~8500 8500~15000 15000~20000 20000~25000 25000~41000 41000~60000 50000~600000
Outlet pressure (kg/cm².G) 3~25 3~40 3~80
Power (Kw) 150~6000 TBD TBD
Power (HP) 201~8046 TBD TBD
Boundary dimension (mm) W 3600 4000 4600 4900 5000 5300 7500 TBD
D 1900 2100 2100 2150 2200 3000 3500 TBD
H 2000 2200 2500 2550 2600 3200 4000 TBD
Weight(kg) 7200 8000 10000 19000 22000 24000 29000 TBD


Working Power:

150-6000 (kw)
201-8046 (hp)

Centrifugal compressor impeller continues to push the air to boost pressure and speed to transport air, airflow along the radial direction of the impeller compressor. Also known as turbine compressor: mainly used to compress air, composed of 2 main parts the rotor and stator: the rotor includes impeller and shaft, the impeller has blades, balance plate and shaft seals; The main body of the stator is the cylinder, as well as devices such as pressure diffuser, bend, reflux, blast pipe, exhaust pipe and others.

High Efficiency & Reasonable Structure Design

  • Gearbox structurally separates from the central/rear cooler and the lubrication system
    • Compact size design with noise enclosure for low noise operation (optional)
  • 100% oil-free clean compressed air
    • Oil lubrication and air compression components are structurally separated
  • High performance and safety
    • The latest design technology ensures efficient performance
    • Employ the best quality components
    • 115% Overspeed tests verify the reliability
  • Quick installation
    • Complete assembly design including after cooling and other parts, simplified structure

Easy and Convenient Maintenance

  • The gearbox, bearing, air seal and oil seal are all in 1 horizontal division structure
  • The cooler core adopts straight pipe structure, which makes maintenance quick and easy
  • Modular design, simple maintenance, dramatically reduces maintenance time and cost 

Excellent durability

  • All compressor components are subject to strict quality control and testing to ensure product durability
  • Strict quality assurance system ensures the safety and durability of the whole machine


Standard & Optional Configuration

Standard Configuration

  • High-efficiency UCS centrifugal air compressor designed with the most advanced fluid engineering
  • Inlet filter
  • Intercooler, rear cooler, oil cooler
  • Vibration monitoring at all levels
  • High-efficiency motor
  • Automatic condensate water drainage system
  • PLC control panel with a 9.7 “touch screen
  • Lubrication system
  • Inlet CZPT vane (IGV)
  • Blowing off valve (BOV) & silencer
  • Constant pressure control and load/unload pressure control

Optional Configuration

  • Double oil filter
  • Motor start-up control panel
  • Inlet filtration pressure differential monitoring
  • Intelligent group control
  • Xihu (West Lake) Dis.n machine interface monitoring system
  • Engine or steam turbine drive
  • Assembly system
  • Wired & Wireless monitoring
  • Remote control monitoring


Company Profile

UNITED COMPRESSOR SYSTEMS has a series of screw compressors with the power of 5.5~630kW, FAD of 0.69~120m3/min and pressure range of 0.2~1.5MPa. At UCS, we also provide services such as design, manufacturing, training operation of the air compression station, technological improvement of energy-saving and customized types. The idea of wholeheartedly customer serving makes our pace steady and long.

To save space and install pipelines, the series of intelligent all-in-1 screw compressor produced by UCS integrates compressor, air storage tank, refrigerated dryer and filter into 1 unit, which is equivalent to a miniature air compressor station. The machine popularly used in dentistry, hyperbaric oxygen chamber, laboratory, electronics, semiconductor, winery, beverage, food packaging, laser cutting, and other industries were requiring pure air and small-scale air supply.

Quality Assurance

In 2003, UCS Compressor accredited with ISO9001 Quality Management System and ISO14001 Environmental Management System Certificates. The company strictly follows the quality requirement of Crosby’s “doing it right the first time”, persists in the working standard of “zero defect”, regards the “It is immoral to produce a defective product” as the criteria of measuring the quality. UCS devotes itself to the continuous improvement of products all the time.

Packing & Shipping


Product Testing


1. Q: How about our after-sales service?

A: Emails or calls for feedbacks in 2 months interval.

2. Q:What trade terms do we provide?

A: Trade term :CIF ,CFR ,FOB,Ex-Works .  

3. Q: What kind of settlement currency do we offer?

A: We do any kind of currency such as US dollar, euro, RMB, etc.

4. Q: How long is the delivery time of our product?

A: Our standard delivery time is 30 days after confirmation order & receiving recipets for standard compressors, for the other non standard requirement will be discussed case by case.

5. Q: How to install our compressor?

A: Installation guidance and on-site commissioning provided by trained technicians or local authorised service crew.

6. Q: What’s the Min. Order requirement ? 

A: Our Min. Order quantity is 1pc.


Contact us :

Company Name : United Compressor Systems (HangZhou) Co.,Ltd.

Contact Preson : Junyao (Clare) Feng 

If you are interested in our products, please feel free to contact us. We sincerely look forward to cooperating with you to grow and develop together.

How to Repair and Maintain an Air Compressor

A compressor is a device used to move air from 1 place to another. Air enters the air compressor through the intake valve. Inside the compressor, the vanes on the inner rotor rotate within an eccentric cavity. The self-adjusting length arm divides the space into multiple cavities of different sizes. As the rotor rotates, air fills the cavity. As air flows around the cavity, it builds pressure and is squeezed out of the compressor output.

Positive displacement

Positive displacement air compressors use reciprocating pistons to compress air. Gas is drawn in during the suction stroke and compressed by moving the piston in the opposite direction. It then discharges the compressed air by moving it in the opposite direction. This type of air compressor is most commonly found in automobiles, refrigerators, and other applications that require high pressure. However, it is not as efficient as a centrifugal compressor.
Most modern air compressors use positive displacement. Positive displacement models capture a volume of air in the compression chamber and distribute it when the pump is operating at maximum capacity. They are more economical than their negative displacement counterparts. Reciprocating screw air compressors are the most common positive displacement compressors. The reciprocating screw air compressor adopts a water jacket around the cylinder and is often used in processes such as oil drilling.
A bicycle pump is an example of positive displacement compression. Air is drawn into the cylinder and compressed by the moving piston. A piston compressor works on the same principle, but it uses a rotating crankshaft or connecting rod to complete the movement of the pistons. There are 2 types of positive displacement compressors: single-acting and double-acting. Both types work on the same principle, both are positive displacement compressors. The difference between the 2 types is the pressure ratio.
In air compression, positive displacement compression reduces the volume of the fluid and reduces its viscosity. This results in higher pressure ratios and is used in centrifugal, axial, and scroll compressors. Positive displacement is a common feature of most air compressors. Positive displacement compressors offer the same benefits and are more energy-efficient when applied to oil-free and gas applications. This type of compression is usually the best choice for low-pressure applications.

oil free

If you’re looking for an air compressor for your business, consider an oil-free air compressor. These models offer cleaner, quieter operation than traditional air compressors and require less maintenance. They also meet ISO Class 0 or Class 1 air purity requirements. Oil-free air compressors are also quieter, with fewer moving parts and less noise. These advantages make oil-free air compressors an ideal solution for many commercial applications.
Air purity is critical in many industries. Even the tiniest drop of oil can damage production equipment or damage products. The best way to find an oil-free air compressor for your business is to consider the process and end product. As air quality improves, more and more businesses are turning to oil-free compressors. Some of the advantages and disadvantages of these air compressors are:
When choosing an oil-free air compressor, it is important to understand the terminology used in the industry. Knowing these terms will make it easier for you to choose the right compressor for your needs. ACTFM, or actual cubic feet per minute, is an industry term for measuring the amount of air pumped in 1 minute under rated conditions. Although a simple number, it can be very useful in determining which type of air compressor is best for your application.
The ISO 8573-1 international standard defines air quality and provides air purity classifications. The strictest classification is air purity class 0. Many manufacturers claim that oil-free air compressors meet this standard. However, a class 0 oil-free air compressor does not necessarily mean that the air is free of contaminants. In fact, Class 0 is the benchmark for air purity. While zero air quality is the highest level, that doesn’t mean it’s completely oil-free.

double acting

A double-acting air compressor is a device that uses compressed air to generate electricity. Its working principle is based on piston and connecting rod. The connecting rod connects the crankshaft to the piston through pins and caps. The piston moves as the piston moves. Rods are usually made of forged carbon steel. In terms of service and maintenance, double-acting compressors require regular vise maintenance and proper cleaning.
The displacement of the compressor is a measure of the displacement that the piston can produce in a certain period of time. Displacement is usually expressed in actual cubic feet per minute. The exact calculation depends on the type of cylinder and the configuration of the compressor. Single-acting cylinders can have head-end or crank-end displacement, both of which can be measured using the displacement equation. A double-acting air compressor will use this equation. 4 and 6 calculate the displacement.
Double-acting air compressors have multiple cylinders and are made of cast iron. They are water-cooled and have a mechanical connection between the piston and connecting rod. A double-acting compressor compresses air twice per revolution of the motor. One cylinder moves up, while the other cylinder moves down. The piston moves down, allowing air to enter through valve #1. During the operation of the compressor, the temperature of the air and gas increases.
Double-acting air compressors typically have high pressure and are considered workhorses. Double-acting compressors also feature intercooling and double compression. As a result, these machines tend to last longer than single-acting compressors. Its low speed and dual compression make it a workhorse in the compressor industry. Double-acting air compressors are workhorses and versatile devices.

fuel tank pressure switch

You can adjust the pressure in the air compressor tank by adjusting the differential pressure. You can turn the mainspring clockwise or counterclockwise to increase or decrease the pressure. This valve will open when the pressure is low enough to start the compressor. If the pressure is too low, the valve should be closed. The cut-in and cut-out pressures should be set to appropriate values. After adjusting the tank pressure, check the hysteresis of the tank pressure switch and set the desired shutoff pressure.
If the pressure in the tank falls below the cut-in level, the tank pressure switch must be replaced. You can test the switch with a multimeter. Make sure the switch is not damaged. If you can’t find the switch, you can look at the other sections. If you find any damaged or missing parts, you should replace them. Otherwise, it may be time to check the tank pressure switch. You may need to disassemble the compressor and remove the switch.
The fuel tank pressure switch is an important part of the air compressor. It keeps you informed of the amount of air delivered by the compressor. If your tank or tank is damaged, your readings will be wrong. If the pressure switch is damaged, it will not function properly and result in incorrect readings. Fortunately, there are some easy ways to fix this. To prevent this from happening, keep the tank pressure switch in good condition.
When the air pressure in the tank drops to the cut-in pressure setting, the switch allows power to flow through it. This will start the motor and pump of the air compressor. Then, if the pressure in the tank rises above the cut-off level, the switch will trip and stop the compressor. This will prevent it from being over-pressurized. Power flow will continue to flow to the motor. Depending on your compressor model, you can change the cut-in and cut-out pressures as needed.

energy source

The power supply of the air compressor is very important. Most air compressors run on 12 VDC, which is ideal for automotive use. Alternatively, you can buy a switching power supply for around $20. No matter which power supply you choose, you must ensure that it can support the maximum current of the compressor. You can find power supplies in all sizes, from quarter-horsepower to five-horsepower.
The voltage required for a three-phase air compressor will vary. Three-phase air compressors require 3 separate power cords and a three-phase electrical service panel. This is because a standard 120/240-volt electrical service panel is not sufficient to power a three-phase compressor. Additionally, three-phase compressors require 3 separate isolated wires for the engine and motor circuits. Three-phase compressors do not require a neutral wire.

China Professional Oil Free Centrifugal Compressor Manufacturers     wholesaler China Professional Oil Free Centrifugal Compressor Manufacturers     wholesaler

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