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Swiss injection molding manufacturer for precision plastic parts, high-performance plastics and injection molds from a single source

SKS AG Logo

SKS AG Kunststoffe und Werkzeugbau

8637 Laupen ZH · 8637 Laupen ZH (mold making, Winkelstrasse 19)New on Amplifa

1981Founded in Rüti (ZH)
100Employees in 24-hour operation
220 tMaximum clamping force of the injection molding machines
170 m²Cleanroom ISO 14644-1 Class 8
24 hProduction operation

About SKS AG

SKS AG is a family-owned Swiss company headquartered in Laupen (ZH) that has been developing and producing plastic parts using the injection molding process since 1981. The company covers the entire value chain: from consulting and development with feasibility studies and prototypes, through in-house mold making, to series production and assembly of complete modules. On modern, microprocessor-controlled injection molding machines with clamping forces of up to 220 tonnes, all injection-moldable engineering plastics as well as high-performance plastics such as PEEK, PTFE, PPS, PPSU and PSU are processed around the clock in 24-hour operation. The production department works with fully automatic raw material preparation and automation directly at the injection molding machine. Cleanliness-sensitive parts for medical and laboratory technology are produced by SKS AG in a 170 m² cleanroom of cleanliness class ISO 8 (ISO 14644-1). Customers come from building technology & infrastructure, sanitary & fluid technology, mechanical & apparatus engineering, electronics & telecommunications as well as medical & laboratory technology.

Site
Laupen ZH
Processes
Injection molding, Injection molding series production (24-hour operation, fully automatic raw material preparation), Precision injection molding, Mold making (injection molds), Consulting & development (feasibility studies, prototypes), Module assembly (manual: assembling, printing, welding, finishing, gluing), Automated assembly systems / automation technology, Cleanroom production (ISO 14644-1, Class 8, 170 m2)
Materials
PEEK, PTFE, PPS, PPSU, PSU, Glass-fiber-reinforced technical/high-tech/hybrid plastics, Injection-moldable engineering plastics, Glass-fiber-reinforced engineering plastics
Certificates
ISO 9001, ISO 14001, ISO 13485
Founded
1981
Employees
100
Industries
Building Technology & Infrastructure, Sanitary & Fluid Technology, Mechanical & Apparatus Engineering, Electronics & Telecommunications, Medical & Laboratory Technology
  1. 01

    Consulting & Development (feasibility study, prototypes)

  2. 02

    Mold Making

  3. 03

    Injection Molding & Series Production

  4. 04

    Finishing (printing, welding, gluing)

  5. 05

    Assembly & Automation Technology

Materials & Processes

PEEK

PEEK

High-performance plastic with high temperature and chemical resistance for highly stressed technical parts.

PTFE

PTFE

Very low-friction high-performance plastic for drives and technical components.

PPS

PPS

Temperature- and chemical-resistant high-performance plastic for high-performance products.

PPSU

PPSU

High-performance plastic for demanding technical applications.

PSU

PSU

High-performance plastic with good mechanical properties for technical parts.

GF-TP

Glass-fiber-reinforced engineering plastics

Robust, temperature-resistant materials for mechanical and apparatus engineering.

SPRITZGUSS

Injection Molding

Core process for series production of precision plastic parts in 24-hour operation.

WZB

Mold Making

In-house production of high-precision injection molds including guaranteed shot count and service.

MONTAGE

Assembly & Automation Technology

Manual post-processing and fully automated assembly systems including welding, printing and gluing.

REINRAUM

Cleanroom Production ISO 8

Production of cleanliness-sensitive parts on 170 m² according to ISO 14644-1, Class 8.

Sites

Laupen ZH

CH

Headquarters, injection molding series production, assembly & cleanroom

Materials
Engineering plastics, high-performance plastics (PEEK, PTFE, PPS, PPSU, PSU)
  • Injection molding machines up to 220 t clamping force
  • Microprocessor-controlled injection molding machines
  • Cleanroom ISO 14644-1 Class 8
  • Fully automatic raw material preparation

Laupen ZH, Winkelstrasse 19

CH

Mold Making

  • Machines for in-house mold making

Industries

Building Technology & InfrastructureSanitary & Fluid TechnologyMechanical & Apparatus EngineeringElectronics & TelecommunicationsMedical & Laboratory Technology

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Injection moldingPlastics––––engineering plastics, high-performance plastics
Injection molding series production (24-hour operation, fully automatic raw material preparation)Plastics–––––
Precision injection moldingPlastics–––––
Mold making (injection molds)Engineering–––––
Consulting & development (feasibility studies, prototypes)Engineering–––––
Module assembly (manual: assembling, printing, welding, finishing, gluing)Assembly––––Plastics
Automated assembly systems / automation technologyAssembly––––Plastics
Cleanroom production (ISO 14644-1, Class 8, 170 m2)Plastics––––Plastics
Welding of plastic partsJoining––––Plastics
Printing of plastic partsSurface––––Plastics
Automation directly at the injection molding machinePlastics–––––

3 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Injection molding machine––up to 220 tonnes clamping force–Laupen ZH
Microprocessor-controlled injection molding machines––––Laupen ZH
Machines for in-house mold making––––Laupen ZH (mold making, Winkelstrasse 19)

Additional services

Injection molding processMold makingConsulting & development (incl. feasibility study)Series productionAssembly & automation technologyFinishingWeldingPrintingGluingProduction of hybrid partsMachining of high-performance plastics (PEEK, PTFE, PPS)

Quality & Certifications

SKS AG is certified according to ISO 9001, ISO 14001 and ISO 13485 (Bureau Veritas). Production runs in a process-reliable 24-hour operation with a production planning team and quality mechanisms; cleanliness-sensitive parts are manufactured in the ISO 8 cleanroom.

EvidenceLaupen ZH
ISO 9001
ISO 14001
ISO 13485

Company History

  1. 1981

    Founding of SKS AG Kunststoffe und Werkzeugbau in Rüti (ZH).

  2. 1984

    Relocation to Wald, Stuckstrasse.

  3. 1989

    Relocation to the current site in Laupen (ZH).

  4. 1999

    Certification according to the ISO 9001 quality management system.

  5. 2005

    Certification according to the ISO 14001 environmental management standard.

  6. 2007

    Start of production in extension building I, renovation of the existing buildings.

  7. 2012

    Occupancy of extension building II for series production and warehousing.

  8. 2016

    Commissioning of the cleanroom according to ISO 14644-1, Class 8.

  9. 2017

    New corporate identity including logo change.

  10. 2020

    Mold making relocated to Winkelstrasse 19 in Laupen; setup of Production 2 in the former mold making facility.

  11. 2021

    40th anniversary and succession plan; 100 employees in 24-hour operation.

  12. 2022

    Transfer of SKS shares to Valerie Steiner, Michael Steiner and Lilian Steiner; land purchase in Uznach.

  13. 2023

    Certification according to ISO 13485 for medical devices.

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