Manufacturing/Injection molding

In-house injection molding and toolmaking

Plastic Injection Molding

We manufacture custom plastic parts, from trial samples to series production. Working from your drawings or 3D models, we design and manufacture molds and set up production to meet your part requirements.

Engel injection molding machine at the Promservice facility

Custom plastic part manufacturing

The production approach depends on whether a mold is available, the design documentation and your planned production volume.

Trial batches and series production

Trial molding lets us check mold performance and agree on samples before series production. Batch size and economic feasibility are assessed for the specific part and mold.

Production capabilities

Mold and clamping unit of an injection molding machine at Promservice

Equipment selected for your part

Our fleet of 22 Arburg, Bole, Engel and Haitian injection molding machines, with clamping forces from 50 to 650 tonnes, allows us to select equipment for each production task.

  • We consider mold design and dimensions.
  • We agree on the material, part geometry and quality requirements.
  • We set up the molding process for the agreed production volume.
  • Arburg
  • Bole
  • Engel
  • Haitian

Examples of manufactured parts

Housings, technical parts and components from our production facility. Open a photo to see the products in detail.

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Materials for injection molding

We select polymers according to mechanical loads, temperature, chemical resistance and surface appearance requirements.

POM, filled polymers and other specialty materials are assessed individually. If the material has not yet been selected, we can help review options against your specification.

From inquiry to finished batch

We agree on technical requirements, tooling and production conditions at each stage.

  1. Inquiry review

    We receive drawings, a 3D model or a specification and clarify the material, quantity and intended use.

  2. Technical assessment

    We assess design suitability for molding, the required mold and feasibility on our equipment.

  3. Quotation

    We prepare a proposal based on the documentation, material, tooling and planned batch.

  4. Production setup

    We manufacture the mold if needed, select the machine, run trials and agree on samples.

  5. Molding and inspection

    We produce parts and inspect their characteristics against the documentation and agreed acceptance criteria.

  6. Product delivery

    We deliver the finished parts under the agreed supply terms.

Explore the full injection molding cycle

What determines the price per part

We calculate costs for each order. Both part characteristics and production conditions affect the quotation.

How injection molding costs are calculated
  • Plastic material and part weight
  • Mold design and number of cavities
  • Cycle time and required molding machine
  • Batch size and additional operations

Quality control and mold support

Two halves of a mold manufactured at the Promservice toolmaking facility

In-house toolmaking

We manufacture, repair and modify molds at our facility. This helps align tooling design with the molding process and resolve technical issues during production setup.

About our mold manufacturing
  • Part inspection

    Our quality control department checks dimensions, appearance and other characteristics against the documentation and agreed requirements.

  • Mold trials

    We test tooling on our own molding machines and produce trial parts. The results inform any adjustments to the mold or molding parameters.

  • Mold maintenance

    Repair, maintenance and storage terms are agreed with the customer according to the project requirements.

The company has a quality management system certified by TÜV Thüringen to ISO 9001:2015.

Questions before ordering

Can I order parts without an existing mold?

Yes. We can design and manufacture a mold and then injection mold the plastic parts. To get started, send drawings, a 3D model or a technical specification.

Can you use a customer-supplied mold?

We assess this individually after checking compatibility with our molding machines, mold condition, material and part requirements.

Do you manufacture small batches?

Small-batch feasibility and pricing are assessed individually. Economic viability depends on mold availability, material, part complexity and order quantity.

What affects the cost of injection molding?

Key factors are material and part weight, mold design and cavity count, cycle time, required equipment, additional operations and batch quantity.

Which plastics do you work with?

We work with polyethylene, polypropylene, styrenic plastics, polyamides and polycarbonates. The specific grade and suitability of specialty or filled polymers are assessed against the project requirements.

What information is needed for a quotation?

Send drawings, a 3D model or a specification. Include the material or required properties, planned quantity, quality requirements and whether a mold is available. We can clarify missing details with you.

Request a plastic injection molding quote

Send your documentation for a feasibility review and quotation. Our specialists will contact you to clarify the details.

Information to include in your inquiry

  • Part description and intended use
  • Material or required plastic properties
  • Planned part quantity
  • Availability of an existing mold
  • Quality requirements and operating conditions
  • Drawings, 3D model or technical specification

Plastic injection molding inquiry form

Drawings and 3D models (optional)