Injection molding of thermoplastic, elastomer and thermoset molded parts with in-house toolmaking and cleanroom production for medical technology and automotive.
M. Seeber Kunststofftechnik GmbH
98743 GräfenthalNew on Amplifa
About us
M. Seeber Kunststofftechnik GmbH, based in Gräfenthal (Thuringia), produces molded parts and assemblies from plastics using thermoplastic, elastomer and thermoset injection molding processes. Materials processed include thermoplastics such as PC, PA, PBT, PEEK and PPS as well as thermoset molding compounds based on phenolic, polyester and epoxy resins. Machine capacity is available in the range of 35 to 150 Mp (thermoplastic/elastomer) and 35 to 80 Mp (thermoset). In cleanroom areas according to DIN ISO 14644-1, ISO Class 7, medical technology products are manufactured on all-electric and hydraulic injection molding machines, including laboratory and analysis technology for cardiovascular treatments, surgical technique as well as analysis devices for dental and AIDS diagnostics. The service spectrum includes in-house toolmaking (CNC milling, EDM and wire-cutting technology), assembly of components, ultrasonic welding, thermal post-treatment, surface finishing and electrical/physical testing. Customers come from medical technology, automotive, electrical and sensor technology as well as railway signaling technology, including LEAR, Magna, LEONI, Delphi and Siemens.
- Site
- Gräfenthal
- Processes
- Thermoplastic injection molding, Elastomer injection molding, Thermoset injection molding, Thermoset compression molding, Cleanroom production (injection molding for medical technology, ISO Class 7), Tool and mold making (CNC milling, EDM, wire cutting), Component assembly / pre-assembly of electrical and electronic components, Ultrasonic welding
- Materials
- Polycarbonate, Polyamide, Polybutylene terephthalate, Polyether ether ketone, Polyphenylene sulfide, Elastomers, Phenolic resin (thermoset), Polyester (thermoset)
- Certificates
- ISO 9001:2015, DIN EN ISO 14001:2015, EMAS / Verified Environmental Management (DIN EN ISO 14001), ISO 14001:2015, EMAS, Cleanroom ISO Class 7 (DIN ISO 14644-1)
- Founded
- 1990
- Industries
- Medical technology, Automotive, Electrical engineering, Sensor technology, Railway signaling technology
- 01
Tool and mold making
- 02
Thermoplastic, elastomer and thermoset injection molding
- 03
Thermoset post-processing (blast deflashing, tempering)
- 04
Surface finishing (painting, printing, laser marking)
- 05
Assembly of components
- 06
Testing and certification
Materials & Processes
Polycarbonate
Engineering thermoplastic molding compound for high-quality injection-molded parts.
Polyamide
Engineering thermoplastic molding compound for high-quality injection-molded parts.
Polybutylene terephthalate
Engineering thermoplastic molding compound for high-quality injection-molded parts.
Polyether ether ketone
High-performance thermoplastic for demanding precision molded parts.
Polyphenylene sulfide
High-performance thermoplastic for demanding precision molded parts.
Elastomers
Elastomer molding compounds for injection-molded parts and assemblies.
Phenolic resin (thermoset)
Thermoset molding compound for injection molding and compression molding, among others for electrical and sensor technology.
Polyester (thermoset)
Thermoset molding compound for injection molding and compression molding, among others for electrical and sensor technology.
Epoxy resin (thermoset)
Thermoset molding compound for injection molding and compression molding, among others for electrical and sensor technology.
Location
Gräfenthal
DEHeadquarters, production, toolmaking, cleanroom production
- Materials
- PC, PA, PBT, PEEK, PPS, elastomers, thermosets (phenolic, polyester, epoxy resin)
- Injection molding machines 35–150 Mp (thermoplastic/elastomer)
- Injection molding machines 35–80 Mp (thermoset)
- All-electric and hydraulic injection molding machines (cleanroom)
- Automatic production line for AIDS diagnostics
- Blast deflashing system for precision molded parts
- CNC milling machines
- EDM and wire-cutting technology
- Werth measuring machine
- Keyence measuring machine/profile projector
- Projector measuring device and micro-weighing technology
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Thermoplastic injection moldingPlastics | – | – | – | – | PC, PA, PBT, PEEK, PPS |
| Elastomer injection moldingPlastics | – | – | – | – | – |
| Thermoset injection moldingPlastics | – | – | – | – | Phenolic resin, Polyester, Epoxy resin |
| Thermoset compression moldingPlastics | – | – | – | – | Phenolic resin, Polyester, Epoxy resin |
| Cleanroom production (injection molding for medical technology, ISO Class 7)Plastics | – | – | – | – | Thermoplastics |
| Tool and mold making (CNC milling, EDM, wire cutting)Engineering | – | – | – | – | – |
| Component assembly / pre-assembly of electrical and electronic componentsAssembly | – | – | – | – | – |
| Ultrasonic weldingJoining | – | – | – | – | Plastics |
| Surface treatment: painting, printing, laser markingSurface | – | – | – | – | Plastics |
| Thermal post-treatment: tempering and conditioningHeat treatment | – | – | – | – | – |
| Encapsulation of electronic elements and metal and glass insertsPlastics | – | – | – | – | Metal, Glass |
| Automatic blast deflashing (thermoset post-processing)Surface | – | – | – | – | Thermoset |
| Electrical/physical testing and certification of productsTesting | – | – | – | – | – |
| Quality assurance (measuring machine, projector measuring device, micro-weighing technology, KeyenceTesting | – | – | – | – | – |
| Production of efficiency and automation equipmentEngineering | – | – | – | – | – |
| Manufacture of micro-molded elements for fluid bores and channels from 0.2 mmPlastics | – | – | – | – | Plastics |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection molding machines (thermoplastic/elastomer) | – | – | Machine park 35 Mp - 150 Mp | – | Gräfenthal, Thuringia |
| Injection molding machines (thermoset) | – | – | Machine park 35 Mp - 80 Mp | – | Gräfenthal, Thuringia |
| All-electric and hydraulic injection molding machines (cleanroom) | – | – | – | – | Gräfenthal, Thuringia |
| Automatic production line for AIDS diagnostics parts | – | – | – | – | Gräfenthal, Thuringia |
| Blast deflashing system for precision molded parts | – | – | – | – | Gräfenthal, Thuringia |
| CNC milling machines | – | – | – | – | Gräfenthal, Thuringia |
| EDM and wire-cutting technology | – | – | – | – | Gräfenthal, Thuringia |
| Werth measuring machine | Werth | – | – | – | Gräfenthal, Thuringia |
| Keyence measuring machine / profile projector | Keyence | – | – | – | Gräfenthal, Thuringia |
| Projector measuring device and micro-weighing technology | – | – | – | – | Gräfenthal, Thuringia |
Additional services
Reference customers
Quality
Quality assurance is performed with a Werth measuring machine, Keyence measuring machine/profile projector, projector measuring device and micro-weighing technology as well as image processing in the inspection and assembly modules of the cleanroom. The company is certified according to ISO 9001:2015; the cleanroom production is classified as ISO Class 7 according to DIN ISO 14644-1.
| Evidence | Gräfenthal |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| EMAS | |
| Cleanroom ISO Class 7 (DIN ISO 14644-1) |
History
- 1910
Reconstruction of the building after a fire
- 1919
Foundation by Bernhard Weisse
- 1933
Plastic pressing plant G. Bernhardt
- 1936
Establishment of the thermoset operation, which was taken over via the Treuhand in 1990
- 1990
Foundation of M. Seeber Kunststofftechnik GmbH by Martin Seeber, based in Gräfenthal (Thuringia); molded parts for automotive (LEAR, Magna, LEONI, Delphi), railway signaling technology (Siemens) and medical technology
- 2001
First certification according to ISO 9001
- 2016
Expansion of the management board by Frank Seeber