
Repair, spare parts manufacturing and trading of industrial valves – workshop-based and mobile on site.
Armaturen M. Schuster GmbH
Waltrop · SchlepzigNew on Amplifa
About Armaturen-Schuster
Armaturen M. Schuster GmbH is a service provider specialised in industrial valves, headquartered in Waltrop with a branch in Schlepzig. The company repairs valves, gate valves, check valves and butterfly valves of any nominal size and nominal pressure rating, independent of manufacturer – both in its own workshops and mobile on site at the customer's premises. The service portfolio covers repair and maintenance, turning technology, grinding and lapping technology for sealing surfaces, welding technology including overlay welding and heat treatment, testing technology, as well as automation and retrofitting of valves with electric, hydraulic and pneumatic actuators. In addition, spare parts are newly manufactured from sample parts (reverse engineering), new valves and original spare parts are traded, and non-valve components such as rotary valve feeders are reconditioned. Customers are mainly power plant operators and large-scale industry; projects are handled nationwide, supported by a 24-hour hotline and a fleet of mobile workshop vans with container combinations.
- Site
- Waltrop
- Processes
- Valve repair / maintenance (workshop and on site), Turning technology (conventional, on site and in workshop), Spare parts manufacturing / new production from sample parts (reverse engineering), Grinding technology (lapping and grinding of sealing surfaces, mobile and stationary), Welding technology (manual, MIG, MAG, overlay welding on sealing surfaces, on site), Heat treatment in annealing furnaces, Testing technology (test benches vertical/horizontal, test flanges DIN/ANSI, LEGATEST, acceptance, Automation / retrofitting of valves with electric, hydraulic and pneumatic actuators
- Materials
- Spindle, shaft and spindle nut materials (valve-specific, with material test certificates), Welding wires and electrodes in various dimensions and grades, Valve-specific materials for spindles, shafts, spindle nuts, Welding wires and electrodes, Sealing and packing materials
- Certificates
- ISO 10204 (acceptance tests), Process qualifications welding technology, AÜG staff leasing licence (unlimited), ISO 9001
- Founded
- 1960
- Industries
- Power plant technology, Large-scale industry, Plant engineering / maintenance of industrial plants
- 01
Consulting & Planning
- 02
Assessment / Reverse Engineering
- 03
Turning Technology
- 04
Grinding Technology
- 05
Welding Technology & Heat Treatment
- 06
Blasting
- 07
Assembly / Repair
- 08
Testing Technology & Acceptance
- 09
Logistics & Trading
Materials & Processes
Valve-specific materials for spindles, shafts, spindle nuts
Mill materials in various diameters with material test certificates, permanently stocked for spare parts manufacturing.
Welding wires and electrodes
Stocked in various dimensions and grades for overlay welding on sealing surfaces and housing parts.
Sealing and packing materials
Materials sourced through trade for valve maintenance.
Locations

Waltrop
DEHeadquarters / Workshop
- Materials
- valve-specific materials, welding wires/electrodes
- Vertical turret lathes
- Centre lathes
- Boring mills
- Slotting machines
- Milling machines
- Stationary surface grinding machine
- Manual, MIG and MAG welding technology
- Annealing furnaces for heat treatment
- Test benches (vertical/horizontal)
- Test flanges to DIN and ANSI
- Blasting systems

Schlepzig
DEBranch / Workshop
- Materials
- valve-specific materials
- Turning technology
- Grinding technology
- Welding technology
- Testing technology
Components & Services






Inside the production








Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Valve repair / maintenance (workshop and on site)Assembly | – | – | – | – | – |
| Turning technology (conventional, on site and in workshop)Machining | – | – | – | – | valve-specific materials for spindles, shafts, |
| Spare parts manufacturing / new production from sample parts (reverse engineering)Machining | – | – | – | – | valve-specific materials with material test certificates |
| Grinding technology (lapping and grinding of sealing surfaces, mobile and stationary)Surface | – | – | – | – | – |
| Welding technology (manual, MIG, MAG, overlay welding on sealing surfaces, on site)Joining | – | – | – | – | – |
| Heat treatment in annealing furnacesHeat treatment | – | – | – | – | – |
| Testing technology (test benches vertical/horizontal, test flanges DIN/ANSI, LEGATEST, acceptanceTesting | – | – | – | – | – |
| Automation / retrofitting of valves with electric, hydraulic and pneumatic actuatorsEngineering | – | – | – | – | – |
| Consulting & planning (outage planning, spare parts planning, site setup)Engineering | – | – | – | – | – |
| Blasting (own blasting systems, mobile)Surface | – | – | – | – | – |
| Trading in new valves, spare parts, actuators, gearboxes, gaskets, standard partsAssembly | – | – | – | – | – |
| Reconditioning of non-valve components (rotary feeders, rotary valve feeders,Assembly | – | – | – | – | – |
23 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vertical turret lathes | – | – | – | – | Waltrop / Schlepzig |
| Centre lathes | – | – | – | – | Waltrop / Schlepzig |
| Boring mills | – | – | – | – | Waltrop / Schlepzig |
| Slotting machines | – | – | – | – | Waltrop / Schlepzig |
| Milling machines | – | – | – | – | Waltrop / Schlepzig |
| Mobile turning technology (workshop van) | – | – | – | – | On site |
| Stationary surface grinding machine | – | – | – | – | Waltrop / Schlepzig |
| Mobile gate valve grinding technology | – | – | – | – | On site |
| Mobile valve grinding technology | – | – | – | – | On site |
| Mobile check valve grinding technology | – | – | – | – | On site |
| Grinding machines for manways | – | – | – | – | – |
| Grinding machines for flange sealing surfaces | – | – | – | – | – |
| Grinding machines for sealing wedges and wedge plates | – | – | – | – | – |
| Manual (stick) welding equipment | – | – | – | – | Waltrop / Schlepzig |
| MIG welding technology | – | – | – | – | Waltrop / Schlepzig |
| MAG welding technology | – | – | – | – | Waltrop / Schlepzig |
| Annealing furnaces for heat treatment | – | – | – | – | Waltrop / Schlepzig |
| Test benches with vertical and horizontal clamping | – | – | – | – | Waltrop / Schlepzig |
| LEGATEST testing technology (safety valves in installed condition) | – | – | – | – | – |
| Stationary documentation unit | – | – | – | – | Workshops |
| Test flanges to DIN and ANSI | – | – | – | – | – |
| Workshop vans / container combinations (mobile workshop with lathes, grinding and | – | – | – | – | On site |
| Blasting systems | – | – | – | – | – |
Additional services
Reference customers
Quality & Testing
The testing technology includes test benches with vertical and horizontal clamping, test flanges to DIN and ANSI, as well as LEGATEST testing technology for safety valves in installed condition. Calibrated measuring and testing equipment is kept available for manufactured and reworked installed parts; acceptance tests are also carried out with experts of the technical inspection organisations (ZÜS), including documentation according to ISO 10204.
| Evidence | Waltrop | Schlepzig |
|---|---|---|
| ISO 10204 (acceptance tests) | ||
| Process qualifications welding technology | ||
| AÜG staff leasing licence (unlimited) | ||
| ISO 9001 |
Company History
- 1960
Foundation of Armaturen M. Schuster by Michael and Paula Schuster in Dortmund-Mengede
- 1964
Relocation to Waltrop; order from Theo Schulte for the design and manufacture of two parallel slide gate valves
- 1972
Design of a grinding machine for Veba-Kraftwerke Ruhr
- 1973
Fixed-price programme for the repair of valves, gate valves and check valves nationwide at power plant operators introduced
- 1985
25th anniversary; around 55,000 valves overhauled in the plant and around 35,000 in operation
- 1989
Conversion into a GmbH; Martin Schuster joins the management
- 1991
Opening of the branch in Schlepzig near Lübben in the Spreewald
- 2010
50th company anniversary
- 2012
Death of Michael Schuster; Martin Schuster takes over sole management