Precision parts made from thermoset and thermoplastic materials using compression molding, transfer molding, injection compression molding and injection molding
KTM Kunststoff-Technik-Mittweida GmbH
MittweidaNew on Amplifa
The plastics specialist from Mittweida
KTM Kunststoff-Technik-Mittweida GmbH manufactures precision technical molded parts from thermosetting and thermoplastic plastics at its Mittweida site in Saxony. For thermosets, compression molding, transfer molding, injection compression molding and injection molding are used; the materials processed include compression-molding and injection-molding capable molding compounds such as phenolic resin (PF), melamine resin (MF), melamine/phenolic resin (MP), epoxy resin (EP), urea (HF), unsaturated polyesters (UP) as well as the glass-fiber-reinforced GRP molding compounds BMC and SMC. In addition, common thermoplastics such as PA, PP, PE, POM and ABS, with and without glass fiber content, are processed by injection molding. A key strength is the integration and gas-tight embedding of inserts made of steel, stainless steel (V2A) or brass, for example screws, bushings, pins, rings and contact plates. The range of services includes consulting on and support of toolmaking through to sample approval, finishing by blasting, tumbling, drilling, countersinking, pliing and polishing, as well as tempering of parts. Customers include the electrical industry, mechanical engineering, the automotive and household appliance industries, the textile industry and musical instrument manufacturing. The company has been producing in Mittweida, near Chemnitz, for over 85 years.
- Site
- Mittweida
- Processes
- Compression molding (thermoset), Transfer molding (thermoset), Injection compression molding (thermoset), Injection molding (thermoset), Injection molding (thermoplastic), Processing of inserts (gas-tightly embedded), Blasting (finishing), Tumbling (finishing)
- Materials
- Phenolic resin (PF), Melamine resin (MF), Melamine/phenolic resin (MP), Epoxy resin (EP), Urea resin (UF), Unsaturated polyesters (UP), GRP molding compounds BMC, GRP molding compounds SMC
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1939
- Industries
- Electrical industry, Mechanical engineering, Automotive industry/automotive sector, Textile industry, Musical instrument manufacturing, Household appliance industry
- 01
Toolmaking consulting, sourcing and support through to sample approval/release
- 02
Compression molding, transfer molding, injection compression molding or
- 03
Injection molding of thermoplastics
- 04
Processing of inserts (gas-tight embedding)
- 05
Finishing: blasting, tumbling, drilling, countersinking, pliing, polishing
- 06
Tempering of parts
- 07
Series production and assembly incl. shipping
Site
Mittweida
DEProduction and administration
- Part weight / size
- Thermoset up to 3,000 g, thermoplastic 20–570 g
- Lot size
- Series production; individual parts up to series production
- Materials
- Thermosets (PF, MF, MP, EP, HF, UP, BMC, SMC), thermoplastics (PA, PP, PE, POM, ABS), inserts made of steel, stainless
- 12 presses up to 1,600 kN
- 2 automatic presses up to 1,000 kN
- 3 injection molding machines thermoset up to 1,500 kN
- 2 injection molding machines thermoplastic up to 1,500 kN
- 1 all-electric injection molding machine (2022)
- Blasting machines
- Programmable tempering oven
- Grinding machines
- Pliing and polishing machines
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Compression molding (thermoset)Plastics | – | – | up to 3,000 g | – | Thermosets: phenolic resin (PF), melamine resin (MF), |
| Transfer molding (thermoset)Plastics | – | – | up to 3,000 g | – | Thermosets: PF, MF, MP, EP, HF, UP, BMC, SMC |
| Injection compression molding (thermoset)Plastics | – | – | – | – | Thermosets: PF, MF, MP, EP, HF, UP, BMC, SMC |
| Injection molding (thermoset)Plastics | – | – | up to 300 g | – | Thermosets: PF, MF, MP, EP, HF, UP, BMC, SMC |
| Injection molding (thermoplastic)Plastics | – | – | 20 g – 570 g | – | Thermoplastics: PA, PP, PE, POM, ABS, with/without |
| Processing of inserts (gas-tightly embedded)Plastics | – | – | – | – | Thermosets; inserts made of steel, stainless steel (V2A), |
| Blasting (finishing)Surface | – | – | – | – | Thermoset |
| Tumbling (finishing)Surface | – | – | – | – | Thermoset |
| Drilling and countersinking (finishing)Machining | – | – | – | – | Thermoset |
| Pliing and polishing (finishing)Surface | – | – | – | – | Thermoset |
| TemperingHeat treatment | – | – | – | – | Thermoset |
| Grinding (finishing)Machining | – | – | – | – | Thermoset |
| Toolmaking consulting and support through to sample approvalEngineering | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Press (thermoset) | – | 12 | – | – | Mittweida |
| Automatic press (thermoset) | – | 2 | – | – | Mittweida |
| Injection molding machine (thermoset) | – | 3 | – | – | Mittweida |
| Injection molding machine (thermoplastic) | – | 2 | – | – | Mittweida |
| All-electric injection molding machine | – | 1 | – | 2022 | Mittweida |
| Blasting machine | – | – | – | – | Mittweida |
| Programmable tempering oven | – | 1 | – | – | Mittweida |
| Grinding machine | – | – | – | – | Mittweida |
| Pliing and polishing machine | – | – | – | – | Mittweida |
Additional services
Quality
The quality management system is certified to DIN EN ISO 9001:2015 for the manufacture of precision molded parts made from thermoset and thermoplastic. Manufacturing quality is ensured through systematic planning, process monitoring and continuous improvement.
| Evidence | Mittweida |
|---|---|
| ISO 9001 |
History
- 1939
Start of production as a branch of the Lorenzwerke AG; thermoset components for military technology.
- 1945
New start under the name Spreemann; production of shoe polish and wax tins.
- 1953
Founding of VEB Presswerk Mittweida; portfolio expanded to include control knobs, cosmetic products and technical molded parts.
- 1960
Development into an important supplier for the electrical, textile, automotive and household appliance industries as well as mechanical and plant engineering.
- 1970
Incorporation into VEB Galfütex Schmölln.
- 1982
Incorporation into VEB Presswerk Ottendorf-Okrilla.
- 1983
Incorporation into VEB Elektroschaltgeräte Rochlitz; first thermoset injection molding machines.
- 1991
Reprivatization as Kunststoff-Technik-Mittweida GmbH after reunification.
- 2000
Renamed KTM Kunststoff-Technik Mittweida GmbH; focus on the household appliance, electrical and automotive industries.
- 2006
Modernization of production through replacement of the injection molding machines.
- 2014
Certification to DIN ISO 9001.
- 2017
Transition to DIN ISO 9001:2015.
- 2022
New all-electric injection molding machine for thermoset and thermoplastic applications.
- 2023
Two new automatic presses increase thermoset capacity.
- 2024
Relocation of production to the new facility at Leipziger Straße 29, Mittweida.
- 2025
Relocation of administration to the new site; consolidation of all departments.