
Specialist company for the design, repair, maintenance, testing and commissioning of pumps and electric motors

Christian Woltz – Pumpen und Elektromotoren
UlmNew on Amplifa
About us
Christian Woltz – Pumpen und Elektromotoren is a specialist company in Ulm with over 50 years of experience in the use of pumps and electric motors. Its range of services includes the design, repair, maintenance and commissioning of pumps of all makes as well as the repair and rewinding of electric motors, including three-phase and gear motors. The workshop is equipped with a pump test bench and a performance test bench; testing is carried out including flow measurement with documentation. Critical balancing and alignment work is performed with laser control, and damaged ball bearings are detected at an early stage through digital rolling bearing testing. The company also builds control cabinets with frequency inverters and Siemens S7 controls, offers energy optimization of pump systems, real-time pump monitoring with KSB Guard, and rental of hose pumps. Since 1971 the company has been a service partner of KSB and works with original KSB spare parts; customers include, among others, the Landeswasserversorgung. Its area of operation ranges from Ulm and Neu-Ulm via Biberach and Ehingen to Göppingen.
- Site
- Ulm
- Processes
- Design of pumps and electric motors, Repair and maintenance of pumps (all makes), Repair and overhaul of electric motors, Motor rewinding (winding motors in-house), Pump testing (pump test bench), Performance testing (performance test bench), Balancing and alignment work with laser control, Rolling bearing testing (digital)
- Materials
- Pump test bench, Performance test bench, Laser alignment and balancing control, Digital rolling bearing testing, Siemens S7 control and frequency inverters
- Certificates
- DIN EN ISO 9002 (quality management), DIN EN ISO 9002
- Founded
- 1966
- Industries
- Water supply, Industry (cooling circuits), Wastewater/Irrigation, Landeswasserversorgung (regional water supply)
- 01
Design
- 02
Repair and motor rewinding
- 03
Alignment/balancing with laser control
- 04
Testing on pump and performance test benches
- 05
Commissioning and installation
- 06
Energy optimization and real-time monitoring
Systems and Testing Technology
Pump test bench
Testing of repaired pumps including flow measurement with documentation.
Performance test bench
Performance testing of pumps and drives in the company's own workshop.
Laser alignment and balancing control
Precise alignment and balancing of rotating machine parts.
Digital rolling bearing testing
Early detection of damaged ball bearings.
Siemens S7 control and frequency inverters
Wiring and cabling of control cabinets for pump systems.
Location

Ulm
DEWorkshop and office building
- Materials
- Pumps, electric motors
- Pump test bench
- Performance test bench
- approx. 15 chain hoists
- Laser alignment/balancing control device
- Digital rolling bearing tester
Services and Systems








Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Design of pumps and electric motorsEngineering | – | – | – | – | – |
| Repair and maintenance of pumps (all makes)Assembly | – | – | – | – | – |
| Repair and overhaul of electric motorsAssembly | – | – | – | – | – |
| Motor rewinding (winding motors in-house)Assembly | – | – | – | – | – |
| Pump testing (pump test bench)Testing | – | – | – | – | – |
| Performance testing (performance test bench)Testing | – | – | – | – | – |
| Balancing and alignment work with laser controlAssembly | – | – | – | – | – |
| Rolling bearing testing (digital)Testing | – | – | – | – | – |
| Commissioning of pumps and electric motorsAssembly | – | – | – | – | – |
| Energy optimization of pump systemsEngineering | – | – | – | – | – |
| Real-time pump monitoring (KSB Guard)Engineering | – | – | – | – | – |
| Rental of hose pumpsAssembly | – | – | – | – | – |
| Cabling and wiring of control cabinets with frequency inverter and Siemens S7 controlAssembly | – | – | – | – | – |
| Flow measurement with documentationTesting | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Pump test bench | – | – | – | – | Ulm |
| Performance test bench | – | – | – | – | Ulm |
| Chain hoists | – | 15 | – | – | Ulm |
| Laser alignment/balancing control device | – | – | – | – | Ulm |
| Digital rolling bearing tester | – | – | – | – | Ulm |
Additional services
Reference customers
Quality
The workshop is equipped with pump and performance test benches, digital rolling bearing testing and laser control for balancing and alignment work. Testing is carried out with flow measurement and documentation; in 1997 a quality management system according to DIN EN ISO 9002 was certified.
| Evidence | Ulm |
|---|---|
| DIN EN ISO 9002 |
History
- 1966
Peter Woltz took over a motor winding shop with 2 employees in the Fischerviertel district of Ulm.
- 1971
Acquisition of a workshop in Ulm-Söflingen; service partner of KSB.
- 1979
Purchase of a 2,000 m² site in the Riedwiesen industrial area and construction of the current workshop and office building with 800 m² of usable floor space.
- 1996
25th anniversary as a pump partner.
- 1997
Certified quality management system according to DIN EN ISO 9002.
- 1999
Second place in KSB "Pump Partner of the Year 1999".
- 2010
Company registered as Woltz GbR; managing directors Christian Woltz and Roland Kalmbach.
- 2024
Company registered as Christian Woltz – Pumpen und Elektromotoren; owner Christian Woltz, operations manager Marc Ditzinger.