Specialist for technical springs, stamped and bent parts, and tool building for industry
Ulrich Lohr GmbH & Co. KG
HildenNew on Amplifa
About Ulrich Lohr
Ulrich Lohr GmbH & Co. KG is a medium-sized family business located in Hilden, specializing in the development, production, and distribution of technical springs, stamped and bent parts. The manufacturing includes wire and stamped bent parts, hairpin springs, as well as compression and tension springs based on drawing specifications or functional requirements. Aluminum, stainless steel, C-steel, bronze, and brass strip are processed in strip thicknesses from 0.10 to 5.00 mm and wire thicknesses from 0.40 to 3.50 mm, also as pre-galvanized C-steel or RAL-painted stainless steel. Prototypes, samples, and small series as well as serial production with Just-in-Time and Just-in-Sequence delivery are created using stamping and bending machines, as well as spring and wire bending machines. All sample and series tools are created in-house via tool building based on CAD design using computer-controlled erosion and milling machines. Customers come from the automotive, hardware, and electrical industries; supplies are made to domestic and European countries, as well as world markets such as China, India, Mexico, and Turkey.
- Site
- Hilden
- Processes
- Stamping / Stamped and Bent Parts (Stamping and Bending Machines), Wire Bending (Wire and Stamped Bent Parts, Hairpin Springs), Spring Manufacturing (Compression and Tension Springs), Grinding, Heat Treatment (Tempering), Chrome Plating (Bright and Alu-look Chrome Plating, external), Nickel Plating (external), Silver Plating (external)
- Materials
- Aluminum, Stainless Steel, C-Steel, Bronze Strip, Brass Strip, pre-galvanized C-Steel, RAL-painted Stainless Steel, Stamping and Bending
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Founded
- 1977
- Industries
- Automotive Industry, Hardware Industry, Electrical Industry
- 01
Design (CAD)
- 02
Tool Building (Erosion, Milling)
- 03
Stamping/Bending/Wire Bending and Spring Production
- 04
Grinding
- 05
Heat Treatment (Tempering)
- 06
Surface Treatment (External)
- 07
CAQ Inspection
- 08
Just-in-Time/Just-in-Sequence Delivery
Materials and Processes
Stainless Steel
Also processable with RAL-painted stainless steel.
C-Steel
Stamped and bent parts, also pre-galvanized.
Bronze Strip
Strip material for springs and bent parts.
Brass Strip
Strip material for springs and bent parts.
Stamping and Bending
Stamping and bending machines for strip thicknesses 0.10–5.00 mm, prototypes up to mass production.
Wire Bending
Wire bending machines for wire thicknesses 0.40–3.50 mm.
Tool Building
In-house tool building based on CAD design and computer-controlled erosion and milling.
Grinding
Internal surface finishing of the manufactured parts.
Heat Treatment (Tempering)
Internal tempering to adjust material properties.
Locations
Hilden
DEProduction, Tool Building, Warehouse
- Lot size
- Prototype Production/Small Series up to Series Production
- Materials
- Aluminum, Stainless Steel, C-Steel, Bronze, and Brass Strip
- Stamping and Bending Machines
- Spring Bending Machines
- Wire Bending Machines
- Computer Controlled Erosion Machines
- Computer Controlled Milling Machines
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Stamping / Stamped and Bent Parts (Stamping and Bending Machines)Forming | – | – | – | Prototype Production/Small Series – Series Production | Aluminum, Stainless Steel, C-Steel, Bronze Strip, Brass Strip, pre-galvanized C-Steel, RAL-painted Stainless Steel |
| Wire Bending (Wire and Stamped Bent Parts, Hairpin Springs)Forming | – | – | – | Prototypes/Sample Parts/Small Series – Series Production | Aluminum, Stainless Steel, C-Steel, Bronze Strip, Brass Strip |
| Spring Manufacturing (Compression and Tension Springs)Forming | – | – | – | – | Aluminum, Stainless Steel, C-Steel, Bronze Strip, Brass Strip |
| GrindingSurface | – | – | – | – | – |
| Heat Treatment (Tempering)Heat Treatment | – | – | – | – | – |
| Chrome Plating (Bright and Alu-look Chrome Plating, external)Surface | – | – | – | – | – |
| Nickel Plating (external)Surface | – | – | – | – | – |
| Silver Plating (external)Surface | – | – | – | – | – |
| Flocking (external)Surface | – | – | – | – | – |
| Tool Building (Design using CAD, computer-controlled erosion)Engineering | – | – | – | – | – |
| Milling (computer-controlled, tool building)Machining | – | – | – | – | – |
| Inspection Data Acquisition/Evaluation (CAQ System, Measurement Protocols, CmK/CpK)Inspection | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Stamping and Bending Machine | – | – | Strip thickness 0.10–5.00 mm | – | Hilden |
| Spring Bending Machine | – | – | Wire thickness 0.40–3.50 mm | – | Hilden |
| Wire Bending Machine | – | – | Wire thickness 0.40–3.50 mm | – | Hilden |
| Erosion Machine (computer-controlled) | – | – | – | – | Hilden |
| Milling Machine (computer-controlled) | – | – | – | – | Hilden |
Additional services
Quality
A CAQ system with inspection data acquisition and evaluation is integrally linked to the production process. The conformity of individual testing features is proven by measurement protocols and process capability analyses (CmK/CpK).
| Evidence | Hilden |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 1977
Founded by Ulrich Lohr in Solingen as a specialized producer for stamped and bent parts
- 1997
First certification according to DIN EN ISO 9001
- 2012
Reorganization from sole proprietorship to GmbH & Co. KG
- 2014
Relocation from Solingen to Hilden to expand production and warehouse capacity