Toolmaking and injection moulding of plastic parts from 0.1 to 2,500 g for household appliances and automotive
B. Kneifel, Werkzeugbau GmbH
83043 Bad Aibling, Ebersberger Straße 69New on Amplifa
Toolmaking and injection moulding since 1972
B. Kneifel, Werkzeugbau GmbH was founded in 1972 as a toolmaking company for injection moulding and is today a medium-sized enterprise with 25 employees in Bad Aibling, Bavaria. The company manufactures injection moulding and prototype tools, in particular slider, unscrewing, stack and 2K (two-component) moulds up to approx. 6 t tool weight. The tools are designed entirely in 3D in the in-house design department and optimised on the basis of the findings from the sampling process. In the in-house injection moulding shop with 15 machines from 35 to 650 tonnes clamping force, plastic parts with part weights from 0.1 g to approx. 2,500 g are produced; approx. 500 t of plastic are processed annually, mainly ABS, ABS-PC, PA and PP. Core industries are household appliances, automotive and technical parts. The short distances between the injection moulding shop and toolmaking allow fast maintenance and repair work including laser welding, ensuring continuous production and delivery capability. Production is carried out with tools from both in-house and external manufacture.
- Site
- Bad Aibling
- Processes
- Injection moulding (injection moulding shop), Manufacture of injection moulding and prototype tools (slider, unscrewing, stack, 2K moulds; up to, Silicone moulds (2008 to 2015), Optimisation and repair of injection moulds incl. laser welding, Hard milling / machining on 5-axis machining centres (single-part production), Surface grinding, Wire EDM, Sinker EDM
- Materials
- ABS, ABS-PC, PA, PP, Steel, Silicone, Tool steel
- Certificates
- DIN EN ISO 9001, ISO 9001
- Founded
- 1972
- Employees
- 25
- Industries
- Household appliances, Automotive, Technical parts
- 01
Design in 3D (Catia V5, Visi, Tebis)
- 02
Toolmaking (milling, grinding, EDM)
- 03
Assembly and fine-tuning of the tools
- 04
Injection moulding production
- 05
Sampling and contract measurement (Wenzel LH87)
- 06
Tool optimisation, repair and maintenance
Materials and processes
ABS
Mainly processed thermoplastic, e.g. for housing parts of household appliances.
ABS-PC
Blend for applications with increased requirements for toughness and temperature resistance.
PA
Engineering plastic for robust functional parts.
PP
For lightweight and chemically resistant components.
Silicone
Material for silicone moulds, which were manufactured from 2008 to 2015.
Tool steel
Material for injection moulds, machined by milling, grinding and EDM.
Bad Aibling site
Bad Aibling
DEHeadquarters: toolmaking, injection moulding shop, design, metrology
- Part weight / size
- Injection moulded parts 0.1–2,500 g; tools up to approx. 6 t
- Lot size
- Single parts to series production
- Materials
- ABS, ABS-PC, PA, PP, steel
- 15 injection moulding machines from 35 to 650 t clamping force (BOY, KraussMaffei, Battenfeld)
- 5-axis machining centres (Deckel Maho DMU 80P/80T, OPS Ingersoll, Alzmetall GS1000)
- 3+2-axis milling machine Mecof UNICA CR15 (2500 x 1000 x 1200 mm)
- Surface grinding machines (Minini 2000, G & H FS 420 Z CB)
- Sinker EDM and wire EDM machines (OPS Ingersoll, Fanuc)
- Laser welding machine OR Lasertechnologie EVO Mobile 120
- 3D coordinate measuring machine Wenzel LH87 (1000 x 800 x 700 mm)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection moulding (injection moulding shop)Plastics | – | – | 0.1 g – 2500 g | – | ABS, ABS-PC, PA, PP, Plastics |
| Manufacture of injection moulding and prototype tools (slider, unscrewing, stack, 2K moulds; up toToolmaking | – | – | approx. 6 t | – | Steel |
| Silicone moulds (2008 to 2015)Toolmaking | – | – | – | – | Silicone |
| Optimisation and repair of injection moulds incl. laser weldingToolmaking | – | – | – | – | Steel |
| Hard milling / machining on 5-axis machining centres (single-part production)Machining | – | 2500 mm × 1000 mm × 1200 mm | – | – | Steel |
| Surface grindingMachining | – | 1000 mm × 600 mm × 400 mm | – | – | Steel |
| Wire EDMMachining | – | 600 mm × 400 mm × 300 mm | – | – | Steel |
| Sinker EDMMachining | – | 850 mm × 550 mm × 450 mm | – | – | Steel |
| Laser welding (repair cases)Joining | – | 700 mm × 400 mm × 570 mm | – | – | Steel |
| Design of injection moulds entirely in 3D (2D drawing derivation for documentation), CatiaEngineering | – | – | – | – | – |
| Contract measurement / sampling (nominal/actual comparison against CAD, RP or best-fit system)Inspection | – | 1000 mm × 800 mm × 700 mm | – | – | – |
| Assembly (mould makers: assembly of new tools, fine-tuning, fault analysis, maintenance)Assembly | – | – | – | – | – |
23 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection moulding machine | BOY 35 E | 3 | 35 t clamping force | 2013/2014/ | Bad Aibling |
| Injection moulding machine | BOY 60 E | 3 | 60 t clamping force | 2017/2019/ | Bad Aibling |
| Injection moulding machine | BOY 100 E | 2 | 100 t clamping force | 2018 | Bad Aibling |
| Injection moulding machine | BOY 125 E | 1 | 125 t clamping force | 2023 | Bad Aibling |
| Injection moulding machine | KraussMaffei CX 80-380 | 1 | 80 t clamping force | 2016 | Bad Aibling |
| Injection moulding machine | KraussMaffei CX 130-750 | 1 | 130 t clamping force | 2017 | Bad Aibling |
| Injection moulding machine | KraussMaffei CX 300-1000 | 1 | 300 t clamping force | 2015 | Bad Aibling |
| Injection moulding machine | KraussMaffei C2 650-3500 | 1 | 650 t clamping force | 2001 | Bad Aibling |
| Injection moulding machine | Battenfeld B8 240-2016 | 1 | 240 t clamping force | 2022 | Bad Aibling |
| Injection moulding machine | Battenfeld B8 350-2250 | 1 | 350 t clamping force | 2020 | Bad Aibling |
| Surface grinding machine | Minini 2000 | 1 | 610 x 1000 x 400 mm | – | Bad Aibling |
| Surface grinding machine | G & H FS 420 Z CB | 1 | 400 x 200 x 300 mm | – | Bad Aibling |
| 3+2-axis milling machine | Mecof UNICA CR15 | 1 | 2500 x 1000 x 1200 mm | – | Bad Aibling |
| 5-axis machining centre | Deckel Maho DMU 80P | 1 | 800 x 800 x 800 mm | – | Bad Aibling |
| 5-axis machining centre | Deckel Maho DMU 80T | 1 | 880 x 630 x 630 mm | – | Bad Aibling |
| 5-axis machining centre | OPS Ingersoll 550 | 1 | 550 x 400 x 400 mm | – | Bad Aibling |
| 5-axis machining centre | OPS Ingersoll V9 | 1 | 800 x 600 x 500 mm | – | Bad Aibling |
| 5-axis machining centre | Alzmetall GS1000 | 1 | 800 x 900 x 650 mm | – | Bad Aibling |
| Sinker EDM machine | OPS Ingersoll GANTRY 800 | 1 | 550 x 850 x 450 mm | – | Bad Aibling |
| Sinker EDM machine | OPS Ingersoll GANTRY 500 | 1 | 525 x 400 x 450 mm | – | Bad Aibling |
| Wire EDM machine | Fanuc Alpha 600iBai2300 | 1 | 400 x 600 x 300 mm | – | Bad Aibling |
| Laser welding machine | OR Lasertechnologie EVO Mobile 120 | 1 | 400 x 700 x 570 mm | – | Bad Aibling |
| 3D coordinate measuring machine | Wenzel LH87 | 1 | 1000 x 800 x 700 mm | – | Bad Aibling |
Additional services
Reference customers
Quality
Certified according to DIN EN ISO 9001. For sampling and process capability verification, a 3D coordinate measuring machine Wenzel LH87 (1000 x 800 x 700 mm) with nominal/actual comparison against CAD data is available.
| Evidence | Bad Aibling |
|---|---|
| ISO 9001 |
History
- 1972
Founded as a toolmaking company for injection moulding.
- 2008
Start of silicone mould manufacturing (until 2015).
- 2016
Expansion of the injection moulding shop's machine fleet, including KraussMaffei CX 80-380 and Battenfeld.