
PWL manufactures plants and machinery for mechanical wastewater treatment, process water treatment and residual material treatment.
PWL GmbH & Co. Anlagentechnik KG
Bückeburg, Lower SaxonyNew on Amplifa
About PWL Anlagentechnik
PWL Anlagentechnik specializes in mechanical wastewater treatment and develops and manufactures plants and plant components for wastewater treatment, process water treatment and residual and valuable material treatment. The portfolio includes fine and coarse screens such as the ProCat® rake bar screen with bar spacings from 1.0 mm, drum screens and drum filters, bow screens, helix screens and helix presses, compact sand washers, sand classifiers, screw conveyors, screenings wash presses, compact plants, magnetic separators, heat exchangers, wastewater turbines for small hydropower and mobile wastewater treatment plants. The plants are predominantly made of stainless steel and individually adapted to the respective project requirements, including custom special solutions. Fields of application are municipal wastewater treatment plants, the food and chemical industries, textile care and small hydropower. The company is headquartered in Bückeburg; the range of services is complemented by maintenance and consulting.
- Site
- Bückeburg
- Processes
- Mechanical wastewater treatment / wastewater treatment, Fine and coarse screens (PWL ProCat® rake bar screen), Rake bar screen (bar spacings ≥ 1.0 mm, fine screen + coarse screen), Fine screening / filtration with drum filters (stainless steel), Drum screening (CenterFlow and TanFlow drum screens), Bow screening (solids separation), Spiral screening (helix screen: screening, conveying, dewatering), Screw presses / helix presses / auger presses (dewatering of screen residue, compaction of residual
- Materials
- Stainless steel
- Certificates
- ISO 9001
- Industries
- Municipal wastewater treatment plants, Food industry, Chemical industry, Textile care, Small hydropower, Environmental technology
- 01
Consulting and project planning
- 02
Engineering and design
- 03
Manufacture of plant components (stainless steel)
- 04
Delivery and provision of the plants
- 05
Commissioning
- 06
Maintenance and service
Materials and Processes
Stainless steel
Material for drum filters, sand washers and other plant components in contact with wastewater.
Locations

Bückeburg
DECompany headquarters, engineering, manufacturing and sales
- Materials
- Stainless steel
- ProCat® rake bar screen (in-house production)
- DLK compact sand washer (in-house production)
- TanFlow and CenterFlow drum screens (in-house production)
- ABZ drum filter (in-house production)
- Helix presses/spiral screens (in-house production)
- Screw conveyors (in-house production)
- Bow screens (in-house production)
- Wastewater turbine/pipe turbine (in-house production)
- Flexbed filter (in-house production)
Components and Plant Components






Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Mechanical wastewater treatment / wastewater treatmentEngineering | – | – | – | – | Stainless steel |
| Fine and coarse screens (PWL ProCat® rake bar screen)Engineering | – | – | – | – | – |
| Rake bar screen (bar spacings ≥ 1.0 mm, fine screen + coarse screen)Engineering | Bar spacings ≥ 1.0 mm | – | – | – | – |
| Fine screening / filtration with drum filters (stainless steel)Engineering | – | – | – | – | Stainless steel |
| Drum screening (CenterFlow and TanFlow drum screens)Engineering | – | – | – | – | – |
| Bow screening (solids separation)Engineering | – | – | – | – | – |
| Spiral screening (helix screen: screening, conveying, dewatering)Engineering | – | – | – | – | – |
| Screw presses / helix presses / auger presses (dewatering of screen residue, compaction of residualEngineering | – | – | – | – | – |
| Sand washing / sand classification (DLK compact sand washer)Engineering | – | – | – | – | Stainless steel |
| Screw conveying (residual material transport, up to 30 m horizontal, 12 m vertical, dry)Engineering | – | 30 m (horizontal) × 12 m (vertical) | – | – | – |
| Screenings washing and pressingEngineering | – | – | – | – | – |
| Compact plants (fine screening/dewatering, grit trap/grease trap, sand classification)Engineering | – | – | – | – | – |
| Magnetic separationEngineering | – | – | – | – | – |
| Heat exchangeEngineering | – | – | – | – | – |
| Small hydropower / wastewater turbine / pipe turbine (energy generation)Engineering | – | – | – | – | – |
| Mobile wastewater treatment plants (screens, sieves, presses)Engineering | – | – | – | – | – |
| ABZ drum filtration (textile care)Engineering | – | – | – | – | – |
| Flexbed filtration (4th treatment stage)Engineering | – | – | – | – | – |
| Sand processingEngineering | – | – | – | – | – |
| Sand classification / heavy solids separationEngineering | – | – | – | – | – |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Rake bar screen | PWL ProCat® | – | – | – | – |
| Compact sand washer | PWL DLK | – | – | – | – |
| Drum screen | PWL TanFlow | – | – | – | – |
| Drum screen | PWL CenterFlow | – | – | – | – |
| Drum filter | PWL ABZ | – | – | – | – |
| Helix press / spiral screen | PWL | – | – | – | – |
| Screw conveyor | PWL | – | – | – | – |
| Bow screen | PWL | – | – | – | – |
| Wastewater turbine / pipe turbine | PWL | – | – | – | – |
| Flexbed filter | PWL | – | – | – | – |
Additional services
Quality
The plants are individually tailored to the respective project and, combined with the plant know-how, contribute to environmental protection and economic efficiency. Service quality includes full commitment to every project. Information on standards or test equipment is not published.
| Evidence | Bückeburg |
|---|---|
| ISO 9001 |
History
- 2013
PWL publishes a new brochure on the ProCat rake bar screen
- 2013
PWL publishes a brochure on drum screens and drum filters in solid-liquid separation
- 2013
Use of the ProCat L rake bar screen at the Steinhof wastewater treatment plant of the Braunschweig wastewater association
- 2014
Successful operation of the ProCat L rake bar screens at the Steinhof wastewater treatment plant of the city of Braunschweig
- seit 2010
The wastewater utility of the city of Bückeburg relies on the screen technology of PWL Anlagentechnik from Warber