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Woltz – Fertigung

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

Woltz Logo

Christian Woltz – Pumpen und Elektromotoren

UlmNew on Amplifa

1966Founded
800 m² usable floor space on 2,000 m²Ulm site
approx. 15 chain hoists for heavy loadsWorkshop equipment
1500 kWMotor power of a completed pump overhaul

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)
  1. 01

    Design

  2. 02

    Repair and motor rewinding

  3. 03

    Alignment/balancing with laser control

  4. 04

    Testing on pump and performance test benches

  5. 05

    Commissioning and installation

  6. 06

    Energy optimization and real-time monitoring

Systems and Testing Technology

PRÜF

Pump test bench

Testing of repaired pumps including flow measurement with documentation.

LEIST

Performance test bench

Performance testing of pumps and drives in the company's own workshop.

LAO

Laser alignment and balancing control

Precise alignment and balancing of rotating machine parts.

WLZ

Digital rolling bearing testing

Early detection of damaged ball bearings.

S7

Siemens S7 control and frequency inverters

Wiring and cabling of control cabinets for pump systems.

Location

Standort Ulm

Ulm

DE

Workshop 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

Pump test bench
Pump test benchTest bench · Pump service
Rewound electric motor
Rewound electric motorMotor rewinding · Electrical engineering
Hose pump
Hose pumpRental · Emergency service
KSB Multi-Eco centrifugal pump
KSB Multi-Eco centrifugal pumpCentrifugal pump · Irrigation
KSB Flood Fighter
KSB Flood FighterFlood pump · Emergency service
Test bench touch panel
Test bench touch panelTest bench technology · Testing
Control cabinet wiring
Control cabinet wiringSiemens S7 · Electrical engineering
KSB Guard
KSB GuardPump monitoring · Maintenance

Inside the production

Workshop and office building, 1979 on Riedweg in Ulm
Workshop and office building, 1979 on Riedweg in Ulm
Pump overhaul at the Landeswasserversorgung
Pump overhaul at the Landeswasserversorgung
Damage images from practice
Damage images from practice
Projects and installations
Projects and installations
Peter Woltz rewinding a motor, Ulm-Söflingen
Peter Woltz rewinding a motor, Ulm-Söflingen
Blautal bridge Ulm in front of the company premises
Blautal bridge Ulm in front of the company premises

Industries

Water supplyIndustry (cooling circuits)Wastewater/IrrigationLandeswasserversorgung (regional water supply)

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
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

MachineManufacturer / modelQuantityWorking areaYear builtSite
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

Pump design, repair and commissioningPump maintenance and pump serviceElectric motor repair and motor rewindingPump test bench and performance test benchBalancing and alignment work with laser controlDigital rolling bearing testingKSB emergency service 24/7Rental of hose pumpsEnergy optimization of pump systemsFrequency inverters and speed controlPump control systems (Siemens S7)Installations

Reference customers

KSB (service partner)Landeswasserversorgung

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.

EvidenceUlm
DIN EN ISO 9002

History

  1. 1966

    Peter Woltz took over a motor winding shop with 2 employees in the Fischerviertel district of Ulm.

  2. 1971

    Acquisition of a workshop in Ulm-Söflingen; service partner of KSB.

  3. 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.

  4. 1996

    25th anniversary as a pump partner.

  5. 1997

    Certified quality management system according to DIN EN ISO 9002.

  6. 1999

    Second place in KSB "Pump Partner of the Year 1999".

  7. 2010

    Company registered as Woltz GbR; managing directors Christian Woltz and Roland Kalmbach.

  8. 2024

    Company registered as Christian Woltz – Pumpen und Elektromotoren; owner Christian Woltz, operations manager Marc Ditzinger.

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