Rotary Compressors

E-Series Oil-Free Rotary Screw Air Compressors

These highly efficient rotatory screw compressors produce air and gases in larger volumes and higher pressures than the piston compressors. Rotatory screw type air compressors are the best choice to replace piston compressors for achieving bigger operational efficiency and greater industrial applications. Pryes compressors is the leading rotatory screw air compressors manufacturer in India. We manufacture different variants of screw air compressors which can be used for hefty industrial mechanisms that require gases in higher volumes and pressure. We are the leaders of the screw compressor market as we provide our air compressors in world-class reliability.

We also specialize in the manufacturing of both Oil flooded Screw Compressors and Oil-Free Screw Compressors. Oil flooded Screw Compressors use an oil-injected system for preventing the formation of rust inside the drum and components of the screw compressor, then the oil contamination of air output is separated using an oil separation system which is mounted with the screw compressor. You can avail any type of screw compressor based on your budget and requirements since we offer compressors with different output and efficiency levels. These types of screw air compressors are highly capable of producing continuous air supply for flawless industrial functions.

In Pryes compressors, we manufacture rotatory screw air compressors in various horsepowers (HPs) to meet various compressed air demands for your particular industry. As we are the best compressor company in India, our screw compressor maintenance is very low when comparing to the other brands. Because we use the finest screw compressor parts and screw compressor spare parts that are imported from international brands. Our screw compressors are easy to install due to our compact designs and they are highly safe to handle, maintain and operate.

Why more and more people chose to use Rotary Vane Compressor for the automation production in the factory?



Caused by Vane compressors are More reliable and easier maintenance, long life!

24Hours to have Air with most economic way which is using Vane!

To get your backup!



Also find it in -

Wooden factories;

Metal fabrication;

Textile;

Chemical plant;

Water treatment;

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Basic working principle and design
In a rotary vane compressor, compression is achieved by centrifugal force causing the vanes to extend from the slots to form compression cells. As the cell moves around the rotor, the trapped air is compressed and discharged from the compression zone.

Thanks to their simple overall design, these compressors can provide up to 100,000+ operating hours. They are direct driven with a vibration-damping coupling system. This eliminates the need for speed-increasing gears and over-tensioned belts.

The simple construction and less service components reduce maintenance costs. Rotary vane compressors operate at conservatively low speeds, making them extremely reliable and extending the life of the machine.

Where are these compressors best suited?
The rotary vane is usually very quiet, making it an important consideration for point-of-use compressor applications. Even without a housing, low HP rotary vane compressors are very quiet compared to other options.

They are designed to meet the most stringent specifications and are ideal for 100% duty cycle applications. Rotary vane compressors are easy to install and maintain. They are designed for a variety of applications including automotive, hydraulic, body shops, packaging, machine tool and oem.

Features and Benefits
Simple design with few moving parts

Robust, compact, easy to access and maintain, easy to replace parts, extremely reliable and durable

Single-stage compression

The essence of the design is to generate sufficient compression in a single stage to produce a high compression ratio during a single cycle, as well as better energy efficiency, reduced risk of failure, and reduced maintenance requirements.

Direct axial coupling of motors

Direct couplings are possible because the high compression ratio allows for low speeds without the need for transmissions or gears. Fewer parts mean lower energy consumption and simplified maintenance.

Low rotational speeds

Low rotational speeds reduce vibration and thus noise and wear at lower temperatures, and eliminate the need for concrete foundations.

Low cycle temperatures

Lower temperatures reduce wear, coolant consumption, and leaks. Less energy is required for cooling and the purity of the air delivered is higher.

Low maintenance

Single-stage rotary vane units provide cleaner, more reliable operation and significantly reduce maintenance requirements due to less wear on parts.

Read More

Main part of Screw Compressor is Air-end, consisting of a pair of rotors. The male motor is driven by electric motor. Suction of air though Inlet filter and suction control valve. Air oil mixture from air-end flows into an air oil separator. The separated oil flows through oil filter and after cooling in 'cooler', it gets back into the system. The air also passes through air cooler and to the receiver. The whole system is controlled through valves / sequence of compressor is done through electric /electronic control.

Price : USD $6.761/unit.

Min Order : 1 unit.
Ingersoll Rand Rotary Screw Compressor w/Total Air System 230 Volts, Single-Phase, 5 HP, 18.5 CFM, Model# UP6-5TAS-125 230V1.

The Ingersoll Rand UP6-5TAS-125 is a 5 HP rotary screw air compressor that offers an exceptional value without sacrificing the reliability you have come to expect from Ingersoll Rand. The UP6 TAS oil-flooded rotary screw compressor includes dryer and filter to provide a complete air solution in an easy to use, easy to access compact package, delivering efficient performance. Maintenance kit, Item# 305900 (sold separately).

What's Included

(1) Compressor
Key Specs

Item# 404785
Brand Ingersoll Rand
Manufacturer Warranty 12 months parts / 12 months labor
Ship Weight 1003.1 lbs
Horsepower 5
Air Tank Size 80
Volts 230
Max. PSI 125
Air Outlet Size 3/4
Amps 40
Tank Description Horizontal
Dimensions L x W x H (in.) 53 5/8 x 29 x 60 3/4

When it comes to modern industrial machinery, the rotary screw compressor is one of the most widely used technologies. Renowned for their reliability and versatility, screw compressors are the workhorse behind many industrial processes and applications. This durable technology is suited to an array of demanding industry tasks, without which, businesses around the world would encounter operational challenges and efficiency problems.

There are two basic principles of compression in air compressors. One of these is the principle of positive displacement. There are a lot of compressor types that use this method, screw compressors being the most popular.

Operating Principles
As the name suggests, rotary screw compressors use rotary movements to compress the air. Within the compressor, there is a set of male and female rotors. They will be designed differently so that, when turned in unison, air will become trapped between them. The male rotor has convex lobes and the female rotor has concave cavities; in this way, they can mesh together without touching to achieve compression. Additionally, the male rotor will have slightly less lobes than the female, meaning it will rotate more quickly, effectively driving the female rotor.

Unlike piston compressors which use the same principle of compression, the screw element is not equipped with valves. As such, it can work at a high shaft speed and there are no mechanical or volumetric losses to create imbalance. This means that screw technology can combine a large flow rate with a compact, space-saving design.

Rotary Vane Air Compressor
A rotary vane air compressor consists of a cylindrical housing vessel containing a set of adjustable rotating vanes and exchanging air through an inlet and outlet. The vanes are set on an eccentric drive shaft which faces the outlet. As the drive shaft rotates, the length of the adjustable vane closest to the outlet shortens, compressing the air within the spinning chamber. This air then escapes through the outlet and can be powered for subsequent further processing. Rotary vane air compressors are ideally suited to small and quiet applications such as the automotive and agricultural industries. They are less suitable for applications requiring oil-free or otherwise uncontaminated air, or for use in potentially contaminated environments such as wood shops.

Advantages of rotary vane air compressor
Low-speed reliability

Flexible compressor configurations to suit different process requirements

Quiet operation with noise levels as low as 65 dBA

Easy to service due to minimal consumable parts and easy access to air filters. There is also a large oil capacity and large filter size for longer service intervals.

These compressed air units are backed by an industry-leading warranty.

Cost Savings and Energy Efficiency

Rotary Vane Air Compressor
A rotary vane air compressor consists of a cylindrical housing vessel containing a set of adjustable rotating vanes and exchanging air through an inlet and outlet. The vanes are set on an eccentric drive shaft which faces the outlet. As the drive shaft rotates, the length of the adjustable vane closest to the outlet shortens, compressing the air within the spinning chamber. This air then escapes through the outlet and can power further subsequent processing. Rotary vane air compressors are ideally suited to small and quiet applications such as the automotive and agricultural industries. They are less suitable for applications requiring oil-free or otherwise uncontaminated air, or for use in potentially contaminated environments such as wood shops.

Reliable, Efficient & Certified Rotary Vane Compressors for Industrial & Transportation Applications
NAILI is a leading manufacturer of rotary vane compressors, offering CE & ISO-certified compressed air solutions designed for energy efficiency, durability, and low maintenance. Our compressors are trusted in transportation, industrial manufacturing, mining, pharmaceuticals, and other critical sectors worldwide.

Working Principle of Rotary Vane Compressors
A rotary vane compressor is a type of positive displacement compressor that efficiently generates compressed air by using a set of rotating vanes inside a cylindrical housing. These compressors are widely used in transportation, industrial manufacturing, mining, pharmaceuticals, and packaging due to their high efficiency, reliability, and low maintenance requirements.

How Does a Rotary Vane Compressor Work?
The rotary vane compressor operates using four key stages:

Air Intake

Ambient air enters the compressor through an inlet port.

A rotor with multiple sliding vanes is positioned inside an eccentric (off-center) cylindrical housing.

Compression Process

As the rotor turns, the vanes slide outward due to centrifugal force, forming sealed air pockets between the vanes and the cylinder wall.

As the rotor rotates, these pockets reduce in size, compressing the trapped air.

Air Compression & Oil Lubrication (For Oil-Injected Models)

The air is progressively compressed as it moves toward the discharge port.

In oil-injected rotary vane compressors, oil is introduced to seal gaps, cool the air, and reduce friction.

In oil-free rotary vane compressors, the system uses specialized self-lubricating materials for a clean, oil-free compressed air supply.

Compressed Air Discharge

The compressed air exits through the discharge port, ready for use in industrial applications.