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If you are looking for a reliable long-term partner with whom existing customers are more than satisfied, we are the right choice for you.


Contact us today to help you optimise your project and achieve the best results.

FAQ about Plastic injection molding

Discover answers to the most frequently asked questions about plastic injection molding, custom plastic parts, and serial production. We clearly and technically explain the process from idea to finished product and help you choose a reliable partner.

Plastit.si specializes in plastic injection molding, the production of custom plastic parts, and the manufacturing of products made from technical polymers. The company manages the entire process — from reviewing the idea or design, preparing the tool or mold, to serial production of plastic parts for industrial applications and finished products.

Yes. If you only have an idea, sketch, or 3D model, plastit.si supports you with development, design optimization (DFM), and the selection of the most suitable material. We turn your idea into a technically feasible plastic product, prepare the tool, and then carry out production.

If you already have a mold, you can transfer it to us. We inspect it, service it if necessary, and adapt it to our machines. We then carry out stable serial plastic injection molding under continuous quality control.

We use a wide range of materials, including ABS, PP, PC, PA, POM, TPE, and other technical polymers. We adapt to requirements related to strength, temperature resistance, flexibility, UV resistance, or antistatic properties. If needed, we also use recycled materials.

Yes. We produce small, medium, and large series. For smaller quantities, we prepare optimized parameters and fast production start-ups, while for larger volumes, we ensure stable serial manufacturing with the option of long-term supply. Delivery times depend on product complexity, material, and order volume.

Why choose us?

If you are looking for a reliable long-term partner with whom existing customers are more than satisfied, we are the right choice for you.


Contact us today to help you optimise your project and achieve the best results.

  • Development and optimization of plastic products
  • Consulting in the selection of polymer materials
  • Design and manufacturing of injection molds 
  • Plastic injection molding
  • Finishing and post-production operations
  • Comprehensive logistics support and fast delivery
  • High quality and precision
  • Sustainability and environmental responsibility
  • Reliability and on-time delivery
  • Are you looking for a reliable partner? 

    SIQ ISO 9001 certificate for the quality management system
    SIQ ISO 14001 certificate for the environmental management system
    Plastit AAA Platinum Creditworthiness Excellence
    Dun & Bradstreet profile of Plastit
    Plastit - development and production of plastic products
    Development and production of plastic parts

    @ 2025 Skupina stroka.si

    Contact us

    Phone:

    +386 (0)41 689 560

    Mail:

    info@plastit.si

    Address:

    Plastit d.o.o. , Sinja Gorica 81, SI-1360 Vrhnika