Screw Compressors

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Screw Compressors

26 used machines found
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Top lot
ATLAS COPCO ZR 500 Screw Compressor
Duisburg
0 Bids
10,000 €
23/08/2017 10:10
Hot lot
KAESER ASD 37 Screw Compressor
Wenden
13 Bids
5,100 €
24/08/2017 11:14
KAESER ASD 57 Screw Compressor
Bornheim
3 Bids
2,900 €
07/09/2017 10:41
BETICO ER 132 Screw Compressor
San Pedro de B…
0 Bids
2,800 €
13/09/2017 15:30
ATLAS COPCO GA 75 VSD Screw Compressor
Münster
2 Bids
2,700 €
07/09/2017 10:01
KAESER ASD 37 Screw Compressor
Bornheim
4 Bids
2,600 €
07/09/2017 10:39
GARDNER DENVER VS-70 Screw Compressor
Hanhikoski
0 Bids
2,500 €
26/09/2017 10:45
ATLAS COPCO GA 50 VSD Screw Compressor
Münster
2 Bids
2,200 €
07/09/2017 10:00
ATLAS COPCO GA 50 VSD Screw Compressor
Münster
2 Bids
2,200 €
07/09/2017 10:02
Opportunity
RENNER RS 30/10 Screw Compressor
St. Ingbert
0 Bids
1,900 €
21/08/2017 11:09
FINI ROTAR KSC10 Rotary Compressor
Corciano (PG)
2 Bids
1,900 €
05/09/2017 10:06
ATLAS COPCO GA 30 Screw Compressor
Wenden
7 Bids
1,890 €
24/08/2017 11:13
GD GARDNER DENVER E-75-EANA-RD Screw Air Compressor
Hanhikoski
0 Bids
1,500 €
26/09/2017 10:46
Opportunity
COMPAIR RA-110 Screw Compressor
Wenden
0 Bids
1,400 €
24/08/2017 11:23
Hot lot
ALUP Vario TR15 Screw Compressor
Lhota Rapotina
18 Bids
1,350 €
15/09/2017 10:11
ATLAS COPCO GA 355 - 10 Screw Compressor
Münster
3 Bids
1,200 €
07/09/2017 10:03
Hot lot
RENNER RS 11 Screw Compressor
Krimml
11 Bids
1,100 €
08/09/2017 12:54
ALUP CK 42 - 10 Screw Compresso
Velen
5 Bids
1,000 €
25/08/2017 13:44
RENNER RSDK 11 Screw Compressor with Pressure Vessel
Lembruch
9 Bids
900 €
13/09/2017 10:17
Rotary Compressor
Corciano (PG)
0 Bids
600 €
05/09/2017 10:12
MAHLE MSK 022 D Compressor
Münster
0 Bids
600 €
07/09/2017 10:07
INGERSOL-RAND SSR ML 22 Screw Compressor
Culleredo
8 Bids
450 €
13/09/2017 14:59
INGERSOL-RAND SSR ML 22 Screw Compressor
Culleredo
10 Bids
420 €
13/09/2017 14:58
BOGE VLEX 22 R-9 Screw Compressor
Rietberg
1 Bid
400 €
05/09/2017 12:04
ALUP SCK 26-8 Screw Compressor
Skrdlovice
3 Bids
290 €
15/09/2017 10:20
INGERSOL-RAND MH 90 SS Rotary compressor
Marene (CN)
3 Bids
240 €
19/09/2017 14:20
 

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Index

  1. Tasks and functionality of a screw compressor
  2. Why use screw compressors?
  3. Uses for screw compressors
  4. Suppliers of screw compressors

Tasks and functionality of a screw compressor

Compressors are machines that compress gas to such an extent, that it can be efficiently stored and used for specific technical purposes. Compressors are most commonly used for blasting and lacquering. The most common configuration of a compressor is the reciprocating piston. Here a mechanism containing a crankshaft, connecting rod, spools and cylinders is powered by an electric motor. For lacquering and blasting, gas and the surrounding air is sucked into a container, where the pressure then rises continuously until it is used again. Therefore, compressors are usually used for refrigeration units.

Why use screw compressors?

  • It is used for specific technical purposes
  • They are used for refrigeration units
  • The most common configuration is the reciprocating piston
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It is important to ensure that the spool does not rub against the wall of the cylinder as the frictional force increases the warming up of the compressor. A reciprocating compressor is much more expensive in regards to maintenance and energy usage. Compressed air is a form of energy that is essential in all modern industry facilities. Whether it is for pneumatically operated machines or compressed air cleaning guns, a compressed air tube and compressor are necessary in almost all industrial facilities. Contrary to the reciprocating compressor, screw compressors only have two movable parts. The screws are complexly formed workpieces that move against and into one another.
Used screw compressor 02
Through this movement, they transport the in-coming gas from one side of the screw to the other. Thereby, the space in between the screws becomes continually smaller, resulting in the compression of the in-coming gas. Screw compressors work significantly more quietly and efficiently than reciprocating compressors. At the same time, they require a higher minimum speed and have specifically designed components.

Uses for screw compressors

Screw compressors are used for the production of compressed air and gas, as well as being used in refrigerator units. They are a little bit more expensive than reciprocating compressors in terms of their manufacturing, but they require less energy for continuous operation and do not need as much maintenance. As a result of the energy policies, the compressor has a new role in regards to the saving of mechanical energy. Therefore, it is expected that the innovation of compressor technology will increase in the near future.
Used screw compressor 03
Screw compressors are not as widely available as reciprocator compressors and they are not yet commonly used in small refrigerator units or freezers. In the industrial context, screw compressors make up about 50% of compressors.

Suppliers of screw compressors

The most well-known manufacturers of screw compressors are: ATLAS COPCO, KAESER, BOGE, OCHSNER BAUER, DEMAG, INGERSOLL, MAHLE and ECOAIR.

Used screw compressor 04
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