Manufacturer of technical springs, CNC turned parts, wire bent parts, rods and tools from Marktredwitz.
Hirsch KG Fabrik technischer Federn
MarktredwitzNew on Amplifa
About Hirsch KG
Hirsch KG was founded in 1954 by Georg Hirsch in Marktredwitz and is today a medium-sized family-owned company with 116 employees on more than 10,000 sqm of production space. The company manufactures technical springs (compression, extension, torsion and flat springs), CNC turned parts, wire bent parts up to 10.00 mm wire thickness as well as rods made from round wire with diameters from 0.7 to 6.00 mm and lengths up to 3,000 mm. Production is carried out on spring coiling machines, CNC-controlled manufacturing centers with up to 28 programmable axes, eccentric presses, stamping presses and bending centers; around 200 million springs are produced annually. In addition, the company offers its own toolmaking with grinding, EDM and milling machines, spring calculation according to EN 13906-1:2002, R&D up to series maturity, and a 24-hour prototype service. The products are used in industries such as automotive, furniture manufacturing, medical technology, aerospace, the oil industry, mechanical engineering and pneumatics/hydraulics.
- Site
- Marktredwitz
- Processes
- Manufacture of technical springs (compression springs, extension springs, torsion springs, flat, CNC turned parts (precision turned parts), Wire bent parts (bending of wires), Wire bending up to wire thickness 10.00 mm, Straightening and cutting of round wire from coils to fixed lengths (rods), Toolmaking (progressive compound dies, bending dies), Milling, EDM
- Materials
- Tool steels, PM steels, Wire (round wire for springs, bent parts, rods), Round wire
- Certificates
- DIN EN ISO 9001:2015, VDA 6.1 (Volume 6 Part 1, 5th edition 2016), ISO 9001:2015, VDA 6.1
- Founded
- 1954
- Employees
- 116
- Industries
- Automotive, Furniture manufacturing, Medical technology, Aerospace, Oil industry, Mechanical engineering
- 01
Design and spring calculation (EN 13906-1:2002)
- 02
Toolmaking (milling, EDM, grinding)
- 03
Manufacture of springs/wire bent parts/rods
- 04
CNC turning
- 05
Inspection up to individual-part inspection incl. test reports
Materials & Processes
Tool steels
Materials for in-house toolmaking, from progressive compound dies to bending dies.
PM steels
Powder metallurgical steels for highly stressed tools.
Round wire
Base material for springs, wire bent parts and rods (0.7–10.00 mm).
Locations
Marktredwitz
DEProduction and administration
- Lot size
- Single piece to large series
- Materials
- Wire, tool steels, PM steels
- Spring coiling machines
- CNC manufacturing centers (28 axes)
- Wire straightening and cutting machines (Wafios)
- Eccentric presses
- Stamping presses
- Single/double-head bending centers with transfer unit
- Hydraulic and mechanical presses and bending units
- CNC automatic lathes
- Grinding, EDM and milling machines
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of technical springs (compression springs, extension springs, torsion springs, flatForming | – | – | – | Small series – Large series (200 million springs | – |
| CNC turned parts (precision turned parts)Machining | – | – | – | Small series – Large series | – |
| Wire bent parts (bending of wires)Forming | – | – | – | – | Wire |
| Wire bending up to wire thickness 10.00 mmForming | – | – | 10.00 mm wire thickness | – | – |
| Straightening and cutting of round wire from coils to fixed lengths (rods)Forming | – | 3,000.00 mm (depending on the × Wire diameter 0.7-6.00 mm | – | – | Round wire |
| Toolmaking (progressive compound dies, bending dies)Engineering | – | – | – | Single parts – Series parts | Tool steels, PM steels |
| MillingMachining | – | 800mm × 500mm × 400mm | – | – | – |
| EDMMachining | – | 600mm × 400mm × 300mm | – | – | – |
| GrindingMachining | – | – | – | – | – |
| Stamped and bent parts (stamping, bending)Forming | – | – | – | – | – |
| Spring calculation and design according to EN 13906-1:2002Engineering | – | – | – | – | – |
| Spring testing up to individual-part inspection incl. torque testing and test reportsTesting | – | – | – | – | – |
| Design implementation based on CAD data (stp, igs, dwg, dxf), sketches and samplesEngineering | – | – | – | – | – |
| 24-hour prototype serviceEngineering | – | – | – | Single piece | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wire straightening and cutting machines | Wafios | – | Wire diameter 0.7-6.00 mm, rod lengths 20.00-3,000.00 mm | – | Marktredwitz |
| Spring coiling machines | – | – | – | – | Marktredwitz |
| CNC-controlled manufacturing centers | – | – | up to 28 individually programmable axes | – | Marktredwitz |
| Eccentric presses | – | – | – | – | Marktredwitz |
| Stamping presses | – | – | – | – | Marktredwitz |
| Single or double-head bending centers with transfer unit | – | – | – | – | Marktredwitz |
| Hydraulic and mechanical presses and bending units | – | – | – | – | Marktredwitz |
| CNC-controlled automatic machines (automatic lathes) | – | – | – | – | Marktredwitz |
| Grinding, EDM and milling machines | – | – | Milling up to 800mm x 500mm x 400mm, EDM up to 600mm x 400mm x 300mm | – | Marktredwitz |
Additional services
Quality Management
A continuous quality assurance system according to DIN EN ISO 9001:2015 and VDA 6.1 controls and monitors all processes from the inquiry through material selection to production. Springs are inspected and documented according to sampling plans and customer specifications up to individual-part inspection; torque testing and test reports are part of the scope of services.
| Evidence | Marktredwitz |
|---|---|
| ISO 9001:2015 | |
| VDA 6.1 |
Company History
- 1954
Founded as G. Hirsch + Co. by Georg Hirsch with 20 sqm of working space and 700 DM of starting capital.
- 1960
Development of the 7 F guiding principles by company founder Georg Hirsch.
- 2002
Conversion to a KG (limited partnership); Reinhard Himmer becomes personally liable partner together with Georg Hirsch.
- 2007
After the death of Georg Hirsch, Reinhard Himmer leads the company alone.