
Trading and refurbishment of used stationary screw compressors and compressed air dryers with worldwide export.

DUP Compressors
Hohenems (AT)New on Amplifa
About DUP Compressors
DUP Compressors is a trading company based in Hohenems (Vorarlberg, Austria), specializing in the purchase and sale of used stationary screw compressors and compressed air dryers. The range includes several hundred oil-injected and oil-free screw compressors as well as refrigeration dryers and adsorption dryers from the manufacturers Atlas Copco, Kaeser, Boge, CompAir, Ingersoll Rand, Almig, Alup and Gardner Denver. A key focus is the oil-free Z series from Atlas Copco. Qualified service technicians clean, inspect and overhaul the units in the company's own workshop; a test bench with drive power of up to 500 kW enables documented test runs with operating parameters. Spare parts are also supplied, including original parts from CompAir. Customers are resellers and industrial companies in more than 100 countries, including exporters in Africa, South America and Asia.
- Site
- Hohenems, Austria
- Processes
- Trading in used screw compressors and compressed air dryers (purchase/sale/inspection), Test bench/test run of compressors (cleaning, inspection, repair, general overhaul), Inspection and test run of used compressors (test bench up to 500 kW drive power), Refurbishment/overhaul and maintenance by in-house service technicians, Spare parts supply (original parts, including CompAir), On-site inspection and video demonstrations, Worldwide sales and export, Purchase of used compressors and dryers
- Materials
- Oil-injected screw compressors, Oil-free screw compressors, Refrigeration dryers and adsorption dryers, Original spare parts
- Certificates
- Documented test bench run, Functional guarantee for inspected units, Test run video (premium units), On-site inspection possible
- Industries
- Industrial companies (compressed air users), Compressor dealers/resellers, Export/import trade (Africa, South America, Asia)
- 01
Purchase of used compressors and dryers
- 02
Cleaning and inspection
- 03
Repair or general overhaul
- 04
Test bench run with video
- 05
Storage in Hohenems
- 06
Worldwide sales and export
- 07
Spare parts supply and maintenance
Offer and Condition Classes
Oil-injected screw compressors
Stationary units including the Atlas Copco GA series from 7 to 450 kW.
Oil-free screw compressors
Atlas Copco Z series (ZA/ZR) as a central area of expertise.
Refrigeration dryers and adsorption dryers
Used compressed air dryers in several condition classes.
Original spare parts
Parts for screw and rotary wave compressors as well as dryers, regardless of manufacturer, including original parts from CompAir.
Location

Hohenems
ATWarehouse, workshop, test bench and sales (HQ)
- Lot size
- Individual units
- Materials
- Oil-injected and oil-free screw compressors, dryers
- Compressor test bench with up to 500 kW drive power
- Test stand with video documentation
- Service workshop
- Warehouse with several hundred units
Units



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Trading in used screw compressors and compressed air dryers (purchase/sale/inspection)Testing | – | – | – | – | – |
| Test bench/test run of compressors (cleaning, inspection, repair, general overhaul)Testing | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Oil-injected screw compressor | Atlas Copco GA 7 VSD FF, GA 11 VSD FF, GA 18 VSD FF, GA 22 VSD FF, GA 30 VSD FF, GA30C FF | several | – | – | Hohenems, Austria |
| Oil-free screw compressor | Atlas Copco ZA 3-50, ZA 4-51, ZA 5-52, ZA 6-53, ZR 3-50, ZR 4-5 (Z series) | several | – | – | Hohenems, Austria |
| Screw compressors/dryers from other manufacturers | Kaeser, Boge, CompAir, Ingersoll Rand, Almig, Alup, Gardner Denver | several | – | – | Hohenems, Austria |
| Refrigeration dryers and adsorption dryers | – | several | – | – | Hohenems, Austria |
| Compressor test bench | – | 1 | Drive power up to 500 kW | – | Hohenems, Austria |
Additional services
Reference customers
Quality and Testing
Inspected units are cleaned, repaired and tested on the company's own test bench (up to 500 kW) by service technicians according to manufacturer specifications; the operating parameters of the test run are documented. Functional capability is guaranteed for inspected machines, and premium units receive a documented test run with video.
| Evidence | Hohenems |
|---|---|
| Documented test bench run | |
| Functional guarantee for inspected units | |
| Test run video (premium units) | |
| On-site inspection possible |
History
- ca. 1991
Start of trading in used screw compressors and dryers – almost 35 years of experience according to the website (2025/2026)