Development and manufacturing of injection molding and die-casting tools, as well as contract manufacturing of mechanical components in Switzerland.

Kessler Werkzeugbau AG
Trasadingen (CH) · HeadquartersNew on Amplifa
About Us
Kessler Werkzeugbau AG in Trasadingen in the Canton of Schaffhausen has been developing and manufacturing high-precision injection molding and die-casting tools for the plastics and aluminum/zinc die-casting industries for over 50 years. The molds include 1 to 48 cavities with sizes up to 800 x 800 mm and a maximum mold weight of 3.5 tons; the portfolio includes multi-component, slide, rotary, and ejection molds, as well as high-performance and precision molds. The design department works with Solidworks and simulates fill studies internally with Plastics. Additionally, the company offers prototypes and small series from small tools, graphite electrodes from raw blocks to precisely milled, contract manufacturing of mechanical components (deep hole boring, turning, 5-axis milling, grinding, erosion, welding), as well as service and maintenance for owned and third-party molds. Customers come from medical technology, electrical engineering, cosmetics/dental, piping, food/packaging, fixtures, and automotive engineering.
- Site
- Trasadingen SH
- Processes
- Injection molding tools / mold construction (1 to 48 cavities), Die casting molds for aluminum and zinc parts, Injection molding (prototypes and small series from small tools, sampling/production at partner, Graphite electrodes (raw graphite blocks to precisely milled and measured electrodes), Deep hole boring, Turning (hard and soft) with powered tools, Milling up to 5-axis, HSC and HPC, Flat grinding
- Materials
- Aluminum, Zinc, Thermoplastics, Duroplastics, Graphite, Steel (Tool steel, derived from tool and mold construction), Tool Steel
- Certificates
- CNC Measuring Machine, Ultrasonic Cleaning
- Industries
- Medical Technology, Electrical Engineering, Cosmetic and Dental Products, Piping, Food / Packaging, Fixtures
- 01
Engineering and tool design (Solidworks, Plastics fill simulation)
- 02
Manufacturing of injection and die-casting tools
- 03
Prototypes and small series from small tools
- 04
Sampling and production of plastic parts at partner sites
- 05
Service, maintenance, and repairs including spare parts
- 06
Logistics with own transport and customs procedures
Materials & Processes
Thermoplastics
Injection molding tools for all thermoplastics with 1 to 48 cavities.
Duroplastics
Injection molding tools for Duroplastics, also with high surface requirements.
Aluminum
Die casting tools for aluminum parts up to 800 x 800 mm mold size.
Zinc
Die casting tools for zinc parts, also meeting automotive quality requirements.
Tool Steel
Basis for mold construction and contract manufacturing such as turning, milling, and erosion.
Graphite
Electrodes from raw blocks to fully finished and measured by milling.
Sites
Trasadingen
CHHeadquarters, Tool and Mold Construction
- Lot size
- Individual parts up to small series (contract manufacturing)
- Materials
- Tool steel, aluminum, zinc, graphite, thermoplastics, duroplastics
- 5-axis milling machines (HSC/HPC)
- Lathes with powered tools
- Deep hole boring machines
- Flat grinding machines
- Wire and sink erosion machines
- Laser welding system
- CNC measuring machine
- Ultrasonic cleaning system
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection molding tools / mold construction (1 to 48 cavities)Tool Manufacturing | – | 800 mm × 800 mm | 3.5 t (Mold weight) | – | Thermoplastics, Duroplastics |
| Die casting molds for aluminum and zinc partsTool Manufacturing | – | 800 mm × 800 mm | 3.5 t (Mold weight) | – | Aluminum, Zinc |
| Injection molding (prototypes and small series from small tools, sampling/production at partnerPlastics | – | – | – | – | Thermoplastics, Duroplastics |
| Graphite electrodes (raw graphite blocks to precisely milled and measured electrodes)Machining | – | – | – | – | Graphite |
| Deep hole boringMachining | – | – | – | – | Steel |
| Turning (hard and soft) with powered toolsMachining | – | – | – | – | Steel |
| Milling up to 5-axis, HSC and HPCMachining | – | – | – | – | Steel, Graphite |
| Flat grindingMachining | – | – | – | – | Steel |
| Wire erosionMachining | – | – | – | – | Steel |
| Sink erosionMachining | – | – | – | – | Steel, Graphite |
| Laser weldingJoining | – | – | – | – | Steel |
| MIG weldingJoining | – | – | – | – | Steel |
| Laser engraving and laser markingSurface Treatment | – | – | – | – | Steel |
| Ultrasonic cleaning for steel componentsSurface Treatment | – | – | – | – | Steel |
| CNC measurement (inspection)Testing | – | – | – | – | – |
| Engineering / design with Solidworks including fill simulation (Plastics)Engineering | – | – | – | – | – |
| Service / maintenance and repairs for owned and third-party molds, spare parts and mold componentsTool Manufacturing | – | – | up to 1000 kg (own transport) | – | – |
| Punch/deburring toolsTool Manufacturing | – | – | – | – | – |
| Contract manufacturing of mechanical components (individual parts and small series)Machining | – | – | – | Individual part – Small series | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC Measuring Machine | – | – | – | – | Trasadingen |
| Ultrasonic Cleaning System | – | – | – | – | Trasadingen |
| Laser Welding System | – | – | – | – | Trasadingen |
| 5-axis Milling Machine (Milling up to 5-axis, HSC/HPC) | – | – | – | – | Trasadingen |
Additional services
Quality
Ongoing investments in modern machinery and facilities ensure high quality standards for customers; manufacturing is tested with a CNC measuring machine.
| Evidence | Trasadingen |
|---|---|
| CNC Measuring Machine | |
| Ultrasonic Cleaning |
History
Over 50 years of tradition in tool and mold construction in Trasadingen
- 2016
Joint future with Grewatec AG (mold construction) since September 2016