
Precision mould making for liquid silicone (LSR) and thermoplastics with in-house cold runner technology, needle shut-off systems and technical centre

Steinhauser Formenbau GmbH & Co KG
Laberweinting (Grafentraubach 707)New on Amplifa
About Steinhauser Formenbau
Steinhauser Formenbau is a precision mould making company founded in 2011 in Laberweinting (Lower Bavaria). The company specialises in the manufacture of injection moulds for silicone processing, in particular high-precision LSR tools (Liquid Silicone Rubber). All LSR tools are machine-manufactured; in-house developed cold runner technology and needle shut-off systems enable scrap-free production, high thermal stability and fast spare part replacement. The company emerged from the parent business, which produced high-precision parts for special machinery. In addition to mould making, the service portfolio includes machining (milling, turning, grinding, wire and die sinking EDM, CNC deep-hole drilling), an in-house hardening shop as well as measuring and testing. Design is carried out with SolidWorks and Cimatron, CAM programming with Mastercam. In its own technical centre with an ENGEL injection moulding machine, injection trials and 2K projects (liquid silicone/thermoplastics) are realised; the company also supplies turn-key systems including tools and spare parts ex stock.
- Site
- Laberweinting
- Processes
- Precision mould making for LSR (Liquid Silicone Rubber), Manufacture of injection moulds for silicone processing, Cold runner technology (in-house development), Milling (all types of milling work, CNC and conventional), Turning (CNC and conventional), Grinding / cylindrical grinding, Wire EDM, Die sinking EDM
- Materials
- Liquid silicone (LSR / Liquid Silicone Rubber), Thermoplastics, Silicone, Liquid Silicone Rubber, Common steel and tool materials
- Certificates
- ISO 9001:2015
- Founded
- 2011
- Industries
- Silicone processing, Injection moulding, Special machinery
- 01
Design (CAD, SolidWorks/Cimatron)
- 02
CAM programming (Mastercam)
- 03
CNC milling
- 04
Turning
- 05
EDM (wire/die sinking)
- 06
Grinding
- 07
Hardening (in-house hardening shop)
- 08
Measuring and testing
- 09
Assembly/trial run in the technical centre
- 10
Turn-key delivery incl. tools
Materials and Processes
Liquid Silicone Rubber
Main material for precision mould making; own technical centre for injection trials and 2K projects.
Thermoplastics
Processed in 2K injection moulding combined with liquid silicone.
Common steel and tool materials
Machined by milling, turning, grinding, hardening and EDM.
Locations

Laberweinting
DEHeadquarters, mould making, machining, technical centre, in-house hardening shop, assembly hall
- Materials
- LSR, thermoplastics, tool steels
- DMG DMC 70V (4-axis)
- DMG DMC 64V linear
- DMG DMC 100 V
- Herlme UWF1001 H
- CNC deep-hole drilling machine
- Exeron EDM 310 die sinking EDM machine
- Mitsubishi MV 2400 R Connect wire EDM machine
- ELB Smart BD 6 surface grinding machine
- Gildemeister CTX 400 lathe
- ENGEL VC 330/80 injection moulding machine (technical centre)
- Conventional turning/milling machines
Moulds and Components


Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Precision mould making for LSR (Liquid Silicone Rubber)Plastics | – | – | – | – | Liquid silicone (LSR), Thermoplastics |
| Manufacture of injection moulds for silicone processingPlastics | – | – | – | – | Silicone (LSR) |
| Cold runner technology (in-house development)Plastics | – | – | – | – | Silicone (LSR) |
| Milling (all types of milling work, CNC and conventional)Machining | – | – | – | – | all common materials |
| Turning (CNC and conventional)Machining | – | – | – | – | all common materials |
| Grinding / cylindrical grindingMachining | – | – | – | – | all common materials |
| Wire EDMMachining | – | – | – | – | all common materials |
| Die sinking EDMMachining | – | – | – | – | all common materials |
| Hardening (in-house hardening shop)Heat treatment | – | – | – | – | – |
| Measuring and testingTesting | – | – | – | – | all common materials |
| Deep-hole drilling (CNC)Machining | – | – | – | – | – |
| Design (CAD) and CAM programmingEngineering | – | – | – | – | – |
| 2K injection moulding liquid silicone/thermoplastics (technical centre)Plastics | – | – | – | – | Liquid silicone (LSR), Thermoplastics |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC 4-axis machining centre | DMG DMC 70V | – | – | – | Laberweinting |
| CNC 3-axis machining centre | DMG DMC 64V linear | – | – | – | Laberweinting |
| CNC 3-axis machining centre | DMG DMC 100 V | – | – | – | Laberweinting |
| CNC 3-axis milling machine | Herlme UWF1001 H | – | – | – | Laberweinting |
| CNC deep-hole drilling machine | – | – | – | – | Laberweinting |
| CNC die sinking EDM machine | Exeron EDM 310 | – | – | 2016 | Laberweinting |
| CNC wire EDM system | Mitsubishi MV 2400 R Connect | – | – | 2018 | Laberweinting |
| CNC surface grinding machine (high-precision surface grinding machine) | ELB Smart BD 6 | – | – | 2012 | Laberweinting |
| CNC lathe | Gildemeister CTX 400 | – | – | – | Laberweinting |
| Conventional lathe | – | – | – | – | Laberweinting |
| Conventional milling machine | – | – | – | – | Laberweinting |
| Injection moulding machine (technical centre) | ENGEL VC 330/80 | – | – | 2012 | Laberweinting |
Additional services
Quality
The certified machine park is continuously monitored to ensure consistently high precision and quality. The company is certified to ISO 9001:2015; services include measuring and testing of all common materials.
| Evidence | Laberweinting |
|---|---|
| ISO 9001:2015 |
History
- 2011
Company founded within the parent business, which had previously manufactured high-precision parts for special machinery
- 2012
Acquisition of the ELB Smart BD6 high-precision surface grinding machine; first 2K project liquid silicone/thermoplastics; development of in-house needle shut-off systems; establishment of an own technical centre with ENGEL VC 330/80
- 2014
Start of training of the first apprentice
- 2015
First turn-key system including tools installed; second apprentice; further expansion of the operation
- 2016
Acquisition of an Exeron EDM machine; further expansion and preparation of the plant enlargement
- 2017
Construction of a new assembly hall
- 2018
New acquisition of a Mitsubishi MV 2400R wire EDM machine