Manufacture of technical springs, stamped-bent parts and assemblies with over 400 million parts per year.
VDF VOGTLAND Federntechnik GmbH
Hagen (Plant 1 + Plant 2) · Reilingen (Plant 3) · Lüdenscheid (Plant 4)New on Amplifa
About VDF FEDERN
The VDF FEDERN Group, headquartered in Hagen, has specialised in technical springs since 1908 and produces compression springs, extension springs, torsion springs and wire bending parts, axle springs, stamped-bent parts as well as complex assemblies. The chipless cold forming is carried out on more than 50 coiling machines with wire dimensions from 0.3 to 16 mm, followed by heat treatment, spring end grinding, shot peening, plasticising and surface coating. Following the merger with RENZING in 2024, the portfolio also includes door and gate technology as well as brake systems for cars and trucks. With over 400 million individually produced parts per year for more than 500 customers, the group ranks among the five largest spring manufacturers in Europe. The most important customer is the automotive supply industry with over 55 percent of sales; further industries include mechanical and plant engineering, electrical, agricultural machinery, construction and fittings, household appliance and furniture industries as well as measurement and control technology. The group comprises VDF VOGTLAND Federntechnik, VDF Umformtechnik (KREUTZER stamped-bent technology), VOGTLAND Autosport and the VOGTLAND Holding, spread across four plants in Hagen, Reilingen and Lüdenscheid.
- Site
- Hagen
- Processes
- Cold forming of springs (coiling/winding process), Compression springs (0.2 – approx. 3 mm wire gauge), Compression springs (3 – 8 mm wire gauge), Extension springs (up to 7.5 mm wire gauge, fully automatic), Extension springs from 8 mm (coiling machines, eyelet assembly, screw-in inserts), Torsion springs & wire bending parts (up to 7.5 mm wire gauge), Axle springs / compression springs (8 – 18 mm wire gauge, suspension springs, OE replacement, Stamped and bent parts (stamped parts, bent parts, leaf and contact springs, contacts)
- Materials
- Spring steel wire / spring-hard material, Strip material (for stamped-bent parts), Plastic (screw-in inserts), Cast (screw-in inserts), Spring steel wire, Strip material, Plastic, Cast
- Certificates
- DIN EN ISO 9001:2015, IATF 16949, DIN EN ISO 14001:2015, DIN EN ISO 14001:2025, DIN EN ISO 50001:2018, EcoVadis Silver, ISO 9001, ISO 14001, ISO 50001
- Founded
- 1908
- Industries
- Automotive/automotive supply industry (passenger cars, trucks, motorcycles,, Mechanical and plant engineering, Electrical industry, Agricultural machinery technology, Construction and fittings industry, Household appliance industry
- 01
Cold forming (coiling/winding process)
- 02
Heat treatment (tempering)
- 03
Spring end grinding
- 04
Shot peening
- 05
Plasticising (setting)
- 06
Surface coating
- 07
Assembly of components
- 08
Quality inspection
- 09
Packaging and logistics
Materials and Processes
Spring steel wire
Spring-hard material for compression, extension and torsion springs as well as axle springs in wire gauges from 0.2 to 18 mm.
Strip material
Base material for stamped and bent parts, leaf and contact springs at the Lüdenscheid site.
Plastic
Used for screw-in inserts of extension springs from 8 mm wire gauge.
Cast
Used for screw-in inserts of extension springs from 8 mm wire gauge.
Locations
Hagen Plant 1
DEHead office and spring technology, Alemannenweg
- Lot size
- Small series to large series
- Materials
- Spring steel wire
- Mechanical and computer-controlled coiling machines (0.2 – approx. 3 mm)
- Computer-controlled spring coiling machines (3 – 8 mm, linked production lines)
- Mobile continuous furnaces
- Automatic feeding systems
- Camera-based inspection systems
- EDM machine Sodick Linear Premium Technology
Hagen Plant 2
DESpring technology, Elseyer Straße
- Materials
- Spring steel wire
Reilingen Plant 3
DERENZING spring technology, door and gate technology as well as brake systems
- Materials
- Spring steel wire
Lüdenscheid Plant 4
DEVDF Umformtechnik / KREUTZER stamped-bent technology, Auf dem Schüffel 8
- Materials
- Strip material
- 35 stamping and bending machines (Bihler, Linde, Kaiser, Raster, Schoen)
- 9 stamping presses 20 – 150 t
- 9 hydraulic presses 5 – 60 t
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Cold forming of springs (coiling/winding process)Forming | – | – | – | – | Spring wire (spring-hard material), a wide variety of material grades |
| Compression springs (0.2 – approx. 3 mm wire gauge)Forming | – | – | – | – | Spring steel wire |
| Compression springs (3 – 8 mm wire gauge)Forming | – | – | – | – | Spring steel wire |
| Extension springs (up to 7.5 mm wire gauge, fully automatic)Forming | – | – | – | – | Spring steel wire |
| Extension springs from 8 mm (coiling machines, eyelet assembly, screw-in inserts)Forming | – | – | – | – | Spring steel wire, Plastic, Cast, Metals |
| Torsion springs & wire bending parts (up to 7.5 mm wire gauge)Forming | – | – | – | – | Spring steel wire |
| Axle springs / compression springs (8 – 18 mm wire gauge, suspension springs, OE replacementForming | – | – | – | Small series | Spring steel wire |
| Stamped and bent parts (stamped parts, bent parts, leaf and contact springs, contacts)Forming | – | – | – | – | Strip material, Springs made from strip material |
| Heat treatment / temperingHeat treatment | – | – | – | – | Spring steel |
| Spring end grinding / face grindingSurface | – | – | – | – | Spring steel |
| Shot peeningSurface | – | – | – | – | Spring steel |
| Plasticising (setting/pre-setting, cold and hot setting)Heat treatment | – | – | – | – | Spring steel |
| Surface treatment/coating (epoxy, polyester, CED, Dacromet, Delta coating)Surface | – | – | – | – | Spring steel wire |
| Assembly of components (joining processes, pressing of holders with spacer bushes, integration ofAssembly | – | – | – | – | Springs, Stamped-bent parts, Plastic, Cast, Metals |
| Toolmaking (own toolmaking competence centre)Engineering | – | – | – | – | – |
| Quality inspection (100% inspection, CAQ system, camera-based inspection systems, testing machines)Testing | – | – | – | – | – |
| EDM / electrical discharge machining (investment in Sodick Linear Premium Technology)Machining | – | – | – | – | Metal (toolmaking) |
| Technical consulting, design of highly stressed extension springs, packaging and logistics solutionsEngineering | – | – | – | – | – |
15 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Coiling machines (cold forming) | – | >50 | Wire dimension 0.3 mm – 16 mm | – | – |
| CNC-controlled spring end grinding machines | – | >25 | – | – | – |
| Trough belt shot blasting systems (shot peening) | – | several | – | – | – |
| Overhead rail shot blasting systems (shot peening) | – | several | – | – | – |
| Tempering furnaces (various, with continuous temperature recording) | – | – | – | – | – |
| Cold and hot setting devices (plasticising) | – | – | – | – | – |
| Stamping and bending machines | Bihler, Linde, Kaiser, Raster, Schoen | 35 | – | – | Lüdenscheid (KREUTZER) |
| Stamping presses | – | 9 | 20 – 150 t | – | Lüdenscheid (KREUTZER) |
| Hydraulic presses | – | 9 | 5 – 60 t | – | Lüdenscheid (KREUTZER) |
| Mechanical and computer-controlled coiling machines | – | – | 0.2 – approx. 3 mm wire gauge | – | Hagen |
| Computer-controlled spring coiling machines (3 – 8 mm, linked production lines) | – | – | 3 – 8 mm wire gauge | – | Hagen |
| Mobile continuous furnaces | – | – | – | – | Hagen |
| Automatic feeding systems | – | – | – | – | – |
| Camera-based inspection systems / fully automated testing machines | – | – | – | – | – |
| EDM machine (Linear Premium Technology) | Sodick | – | – | – | Hagen |
Additional services
Quality
The quality management system is certified to DIN EN ISO 9001:2015 and IATF 16949. Inspection is carried out via a networked CAQ system as well as camera-based inspection systems and fully automated testing machines, also as 100 percent inspection.
| Evidence | Hagen | Reilingen | Lüdenscheid |
|---|---|---|---|
| ISO 9001 | |||
| IATF 16949 | |||
| ISO 14001 | |||
| ISO 50001 |
History
- 1908
Founded in Vogtland with specialisation in technical springs.
- 2022
11 March: New ESF presidium elected (European Spring Federation); VDF FEDERN Group among the 5 largest spring manufacturers.
- 2024
Merger with RENZING; expansion of the portfolio to include door and gate technology as well as brake systems for cars and trucks.