Manufacturing of tension, compression, leg, and flat springs, stamping and wire-bending parts in Iserlohn.
Adolf Brenne Draht + Bandformtechnik GmbH
Iserlohn-LetmatheNew on Amplifa
About Adolf Brenne Draht + Bandformtechnik
Adolf Brenne Draht + Bandformtechnik GmbH in Iserlohn-Letmathe has been manufacturing springs and wire form parts since 1960. The product range includes tension and compression springs from a wire diameter of 0.3 mm, leg springs from 0.4 mm, flat springs and stamping parts from 0.1 to 4.0 mm material thickness, as well as wire bending parts and wire rings made from wire diameters of 0.4 to 10.0 mm. Production takes place on CNC-controlled spring coiling machines and bending machines, among others from Wafios; wire rings can be produced butt-welded with a round bead. All common steel grades are processed, including spring steel wire according to DIN EN 10270, as well as non-ferrous metals. In-house toolmaking enables prototype manufacturing and economical series production; heat treatment and surface technology are offered via a partner network. Customers are found in mechanical and plant engineering, vehicle technology, the electrical industry, medical technology, precision mechanics, and consumer goods production.
- Site
- Iserlohn-Letmathe
- Processes
- Manufacturing wire bending parts, Wire bending parts made from wire diameters 0.4 to 10.0 mm, Manufacturing tension springs, Manufacturing compression springs, Tension and compression springs from a wire diameter of 0.3 mm, Manufacturing flat springs, Manufacturing stamping parts, Manufacturing leg springs (torsion springs, double-leg springs)
- Materials
- Spring steel wire, Steel grades (all common), Non-ferrous metals, Toolmaking
- Certificates
- DIN EN ISO 9002:1994, ISO 9001 (initial certification DIN EN ISO 9002:1994, RWTÜV Essen)
- Founded
- 1960
- Industries
- Mechanical and plant engineering, Automotive industry, Vehicle technology, Precision mechanics, Electrical industry, Medical technology
- 01
Consulting and computer-aided spring design
- 02
In-house toolmaking
- 03
Wire forming (springs, wire bending parts, stamping parts)
- 04
Welding (wire rings butt-welded with a round bead)
- 05
Heat treatment and surface technology via partner network
- 06
Testing with automatic dimension monitoring and sorting systems
- 07
Just-in-time delivery and warehousing
Materials and Processes
Spring steel wire
Standard material for tension and compression springs according to DIN EN 10270 in all common steel grades.
Non-ferrous metals
Non-ferrous metals for springs and wire bending parts with requirements for corrosion resistance or conductivity.
Toolmaking
In-house toolmaking for tools and fixtures, enabling fast adaptations and prototypes.
Locations
Iserlohn-Letmathe
DEHeadquarters, production and administration
- Lot size
- Prototypes, small and medium series, series production
- Materials
- Spring steel wire, steel grades, non-ferrous metals
- CNC-controlled spring coiling machines
- CNC-controlled bending machines (wire 0.4–10.0 mm)
- Wafios FMU 32+
- Wafios BM 30
- Pneumatic bending machines with universal tools
- Böhm testing fixture
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing wire bending partsForming | – | – | – | Small and medium series as well as | Steel, Non-ferrous materials |
| Wire bending parts made from wire diameters 0.4 to 10.0 mmForming | – | – | – | – | Steel, Non-ferrous materials |
| Manufacturing tension springsForming | – | – | – | – | Spring steel wire according to DIN EN 10270, Non-ferrous metals |
| Manufacturing compression springsForming | – | – | – | – | Spring steel wire according to DIN EN 10270, Non-ferrous metals |
| Tension and compression springs from a wire diameter of 0.3 mmForming | – | – | – | – | Spring steel wire according to DIN EN 10270, Non-ferrous metals |
| Manufacturing flat springsForming | – | 120.0 mm material width × 4.0 mm material thickness | – | – | Spring materials |
| Manufacturing stamping partsForming | – | 120.0 mm material width × 4.0 mm material thickness | – | – | Spring materials |
| Manufacturing leg springs (torsion springs, double-leg springs)Forming | – | – | – | – | various spring materials |
| Leg springs from a wire diameter of 0.4 mmForming | – | – | – | – | various spring materials |
| Manufacturing wire ringsForming | – | – | – | – | Steel, Non-ferrous materials |
| Wire rings butt-welded with a round beadJoining | – | – | – | – | Steel, Non-ferrous materials |
| Toolmaking (in-house toolmaking for tools and fixtures)Engineering | – | – | – | – | – |
| Computer-aided spring calculation/designEngineering | – | – | – | – | – |
| Heat treatment (hardening and tempering) by partner companiesHeat treatment | – | – | – | – | – |
| Galvanic zinc plating (partner)Surface | – | – | – | – | – |
| Phosphating (partner)Surface | – | – | – | – | – |
| Powder coating (partner)Surface | – | – | – | – | – |
| Nickel plating (partner)Surface | – | – | – | – | – |
| Passivation (partner)Surface | – | – | – | – | – |
| Testing with testing fixture from BöhmTesting | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC-controlled spring coiling machine | – | – | – | – | Iserlohn-Letmathe |
| CNC-controlled bending machine | – | – | Wire diameter 0.4 to 10.0 mm | – | Iserlohn-Letmathe |
| Pneumatic bending machine (universal tools) | – | – | – | – | Iserlohn-Letmathe |
| Wire bending machine | Wafios FMU 32+ | – | – | – | Iserlohn-Letmathe |
| Wire bending machine | Wafios BM 30 | – | – | – | Iserlohn-Letmathe |
| Testing fixture | Böhm | – | – | – | Iserlohn-Letmathe |
Additional services
Quality
Manufacturing is carried out with automatic dimension monitoring and integrated sorting systems; a testing fixture from Böhm is available for tension and compression springs. Initial certification according to DIN EN ISO 9002:1994 took place in 1999 by RWTÜV Essen.
| Evidence | Iserlohn-Letmathe |
|---|---|
| ISO 9001 (initial certification DIN EN ISO 9002:1994, RWTÜV Essen) |
History
- 1960
Founded by Adolf Brenne in Hohenlimburg
- 1978
Relocation within Hohenlimburg
- 1980
Taken over by Lothar Jäkel
- 1985
Relocation to Letmathe through the acquisition of the property in the Markenfeld industrial estate, Liegnitzer Straße 6
- 1988
Foundation of Stabotec Metallverarbeitungs GmbH at the same location
- 1992
Expansion through new construction of a production hall
- 1999
Initial certification by RWTÜV Essen, DIN EN ISO 9002:1994
- 2000
Acquisition of the property Liegnitzer Straße 4
- 2004
Ms. Miriam Jäkel joins the management
- 2010
Conversion into a GmbH & Co. KG
- 2011
Management: Lothar Jäkel, Miriam Jäkel
- 2016
Expansion through a hall extension (logistics area)
- 2018
Mark Jäkel is granted commercial power of attorney (Prokura) and joins the management
- 2023
Spin-off of production into Adolf Brenne Draht + Bandformtechnik GmbH