Plastic injection moulding
Injection moulding facility in Gdańsk with over 30 years of experience. Engel machines from 25 to 250 tonnes — including two-component 2K. Serial and prototype production of parts from PA, PP, ABS, PC, POM for companies across Poland and Europe.
What is plastic injection moulding?
Plastic injection moulding is the most widely used plastics processing method in the world. It involves plasticising polymer granulate in the barrel of an injection moulding machine and injecting it under high pressure (800–2,000 bar) into the cavity of an injection mould. After cooling, the part is automatically ejected — the entire cycle takes from a few seconds to several minutes.
At MAJ-PLAST in Gdańsk we have specialised in plastic injection moulding since 1993. Our facility in Pomerania operates an Engel machine fleet with clamping forces from 25 to 250 tonnes — including tie-bar-less and two-component 2K machines. We produce plastic parts for the automotive, medical, household appliances, cosmetics, electronics and construction industries.
We serve clients from Gdańsk, Gdynia, Sopot and the entire Tri-City area, as well as from Warsaw, Poznań, Wrocław and other cities in Poland. We export plastic products to 12 European Union countries — including Germany, Sweden, Denmark and the Netherlands. Our ISO 9001:2015 certification confirms the high quality of our production.
Machine fleet — Engel injection moulding machines
The MAJ-PLAST moulding facility in Gdańsk is equipped with Engel injection moulding machines — one of Europe's leading manufacturers of plastics processing equipment. Our machines range from 25 to 250 tonnes of clamping force, enabling the production of small electronic components (a few grams) as well as large housings and panels (up to several kilograms).
Our machine fleet includes hydraulic, hybrid and fully electric models. We also operate two-component (2K) injection moulding machines that inject two different polymers in a single cycle — for example a rigid PA66 body and a soft TPE gasket. This eliminates assembly and shortens production time.
Each machine is connected to peripheral equipment: granulate dryers, mould temperature controllers, colour dosing units and pick-and-place robots for part removal. The entire process is monitored — injection parameters (pressure, temperature, cycle time) are recorded and archived in accordance with ISO 9001:2015 requirements. This ensures full production repeatability.
Materials — polymers for injection moulding
We process all common thermoplastic and engineering polymers. Material selection depends on the mechanical, thermal, chemical and aesthetic requirements of the finished part. We advise clients on the optimal material at the quotation stage — often the right polymer choice reduces the cost of both the injection mould and the part itself.
Most commonly processed polymers: PA6 and PA66 (polyamides — gears, bearings, structural components), PP (polypropylene — packaging, household appliances, automotive), ABS (housings, decorative panels), PC (polycarbonate — optical elements, shields), POM (acetal — precision mechanical parts) (aerospace, medical, high-temperature applications up to 260°C), TPU/TPE (flexible seals, grips), PE (tanks, pipes).
Our machines are adapted for processing high-temperature polymers — barrel temperature up to 420°C. We manufacture custom plastic components from filled polymers: glass fibre (GF), carbon fibre (CF), glass beads (GB), PTFE, MoS₂.
Injection moulding facility in Gdańsk — plastics processing in Pomerania
MAJ-PLAST is a plastics processing company located in Gdańsk at al. Grunwaldzka 311/A — in the heart of the Tri-City area, with excellent access to the port of Gdynia and the A1 motorway. We have been on the market since 1993, making us one of the longest-operating injection moulding facilities in Pomerania. Over three decades we have completed thousands of projects for clients from across Poland, Germany, Scandinavia and the Benelux countries.
Our injection moulding facility in Gdańsk specialises in the production of plastic parts by injection moulding — from single prototypes to runs of hundreds of thousands of pieces per year. We have our own toolroom where we design and manufacture injection moulds, eliminating intermediaries and shortening lead times. We also operate EDM (electrical discharge machining) stations — essential for machining mould cavities from hardened tool steel.
Why do clients choose our Tri-City moulding facility? First — flexibility. We are not a corporation with minimum orders of 100,000 pieces. We handle both short runs of 50–500 parts (prototypes, market validation) and high-volume production of 500,000+ parts per year. Second — a comprehensive service. Under one roof we offer mould design, mould manufacturing, injection trials and serial production. The client receives a finished part — no need to coordinate three subcontractors.
Injection moulding at MAJ-PLAST covers the full range of thermoplastics: from affordable polypropylene (PP) through durable polyamides (PA6, PA66-GF30) and aesthetic ABS, PC to advanced engineering polymers — PPS. We also process elastomeric TPU and TPE on our Engel 2K two-component machines.
Every project begins with a free technical analysis. The client sends a 2D drawing, a 3D model (STEP, IGES, Parasolid) or even a physical sample. Our engineers analyse the part geometry for injection moulding suitability — checking wall thicknesses, polymer shrinkage, ejection directions and gate locations. If potential issues are identified (e.g. walls too thin, corners too sharp), they suggest modifications following DFM (Design for Manufacturing) principles. The goal is to optimise the part so that it is cheaper to produce and higher in quality.
Plastic part production in Gdańsk at MAJ-PLAST is carried out in accordance with ISO 9001:2015. Every batch undergoes quality control — critical dimensions are measured with digital callipers and micrometres, part weight is monitored during production, and injection parameters (pressure, temperature, cycle time) are recorded digitally. On request, we provide measurement reports and material certificates (raw material attestations).
The location of our moulding facility in Gdańsk is logistically significant — proximity to the port of Gdynia enables fast container exports, and the A1 motorway provides convenient transport to central and southern Poland. For clients in the Tri-City area (Gdańsk, Gdynia, Sopot) and the Pomeranian region, we offer the option of personal collection and factory visits — we are happy to show our machine fleet and production processes.
Get a quote
Send a drawing or 3D model — we quote within 24h.
Frequently asked questions
What is the minimum production run for injection moulding?
We handle orders from a few dozen pieces (prototypes) up to 500,000+ parts per year. The minimum order depends on the part type and the injection mould — with an aluminium prototype mould, runs as small as 50 pieces are already cost-effective.
How long does it take to complete an injection moulding order?
With an existing mould — from 5 business days. If a new mould is needed, the entire process (design + mould + trials + production) takes 6–10 weeks. Prototypes on an aluminium mould — from 3 weeks.
What plastics do you process?
We process over 15 polymer families: PA6, PA66, PA66-GF30, PP, PE-HD, ABS, PC, POM, PBT, TPE, TPU and more. We select the material based on project requirements — strength, temperature, aesthetics.
Do you offer two-component (2K) injection moulding?
Yes. We have Engel machines with two-component technology — injecting two different polymers in a single cycle, e.g. rigid PA + soft TPE. This eliminates assembly and shortens production time.
Which industries does MAJ-PLAST serve?
Automotive, household appliances, medical, cosmetics, electronics, construction, furniture and bicycle industries. We export to 12 EU countries — Germany, Sweden, Denmark, the Netherlands and others.