PLASTIC INJECTION MOLDING DEPARTMENT
Our Plastics Injection Molding Department offers comprehensive services—from initial design and mold manufacturing to the final production of plastic parts. With strict quality control, relevant certifications, and state-of-the-art metrology equipment, we ensure that every molded part meets industry standards and our clients’ expectations. For mold maintenance and repairs, we rely on our in-house tool shop. We focus not only on precision manufacturing but also on efficient logistics and transportation. Our injection molding facility is equipped with a wide range of technologies, including laser systems, equipment for safe and efficient mold handling, 3D scanning and measurement, automation solutions, tool and mold polishing, and more.
ADVANCED MACHINERY & TECHNICAL FACILITIES
Injection Molding Machines and Robots
Our Plastics Injection Molding Department is equipped with modern injection molding machines by WOOJIN PLAIMM (SELEX TH-S) with clamping forces of 50, 130, 170, 220, 280, and 650 tons. The plasticizing units can mold parts with volumes ranging from 64 to 3149 cm³. The machines are equipped with hardened barrels and screws suitable for processing materials with up to 50% glass fiber (GF) content. These hydraulic machines feature servo drives and are controlled by the B&R Corporate system.
YUDO SONIX-810 robots are used for the 170, 220, 280, and 650-ton machines and offer the following features:
- Freely programmable
- Servo motors on all axes
- Belt conveyor with a length of 250 cm and loading width of 60 cm
- “C” axis operated by air, with a maximum load capacity on the “Y” axis (including gripper) of 5 kg
Drying Equipment and Temperature Control
The injection molding machines and drying equipment are equipped with four molecular drying silos by SIMATEC s.r.l., with volumes of 2 × 80 L and 2 × 150 L. These drying silos are essential for preparing plastic granulate prior to injection, ensuring proper material moisture content. To monitor moisture levels, we use halogen or other analyzers to meet the required parameters for a stable production process.
We also operate six temperature control units from AEC, each with a heating capacity of 9 kW and a maximum coolant temperature of 120 °C, allowing optimal temperature control of the material during the injection molding process.
Automation and Production Control
One of the key features of our modern injection molding machines is their high process stability. In addition, all machines are connected to a LAN network, allowing us to continuously monitor and store production data on our server. Upon customer request, we can provide complete production data documentation. These capabilities, combined with our skilled workforce, enable the production of high-quality plastic parts.
PLASTIC INJECTION MOLDING PROCESS
Plastic Molding Technology
Material Transport
Granulate feeding into hoppers
Material Preparation
Material drying and conditioning, moisture control
Plasticizing
Melting material in the plasticizing chamber, homogenization
Injection
Injecting the molten material into the mold cavity
Stabilization and Cooling
The part is stabilized and cooled to achieve strength and shape
Removal of Finished Part
Removing the part from the mold (cycle may repeat)
Static Charge Elimination
Removal of static electricity and contaminants
Our Plastics Injection Molding Department is capable of handling your projects from A to Z. From the design of injection molds, through mold manufacturing and modifications, prototype production of plastic components, and trial molding, to the actual injection molding of plastic products.
With over 30 years of experience in mold maintenance, we can quickly identify and resolve issues, minimizing downtime and ensuring a smooth production process. We focus on maximum reliability and efficiency to meet even the most demanding requirements of our customers.
Do you have specific requirements? We are happy to advise you!
MATERIALS USED
Choosing the right material is crucial for the quality and functionality of the final product. Whether you need lightweight and durable polypropylene, transparent polycarbonate, elastic polymers, or specialty materials with color concentrates, our Plastics Injection Molding Department has the ideal solution for you. Our plastics are used across the automotive, electrical, consumer goods, and construction industries.
Materials Overview and Properties
| Category | Properties | Plastics | Examples of Use |
| Commodity Plastics | Lower cost, easy processability, good chemical resistance, lower mechanical strength | HDPE, LDPE, PP, PE, PS, SAN | General use, packaging, films, consumer products |
| Engineering Plastics | Higher strength, resistance to high temperatures, chemicals, and mechanical wear | ABS, POM, PA 6 (up to 50% GF), PA 6.6, PA 11, PA 12, PBT, PC | Automotive industry, mechanical parts, electrical engineering |
| Specialty Plastics | UV resistance, chemical stability, flexibility | ASA, PMMA, TPE, TPU | UV resistant covers, optical lenses, flexible parts |
| Modified Plastics | Plastics with added color concentrates or other additives for specific applications | Materials with color concentrates | Plastics with tailored properties for design and branding |
Key Advantages of Our Plastics
Resistance to Wear and Chemicals
Our plastics are designed to withstand even the most demanding conditions.
Flexibility and Versatility
We offer materials suitable for a wide range of applications, from lightweight packaging to durable structural parts.
Wide Range of Applications
Our plastics have proven their worth in the automotive, electrical, consumer goods, and construction industries.
PRODUCT DESIGN AND DEVELOPMENT
Complete design proposal
From the initial consultation to the final prototype, we will assist you with the design of the part to ensure it meets the required properties and manufacturing process requirements.
Mold Flow analysis
Using simulations, we can predict defects and risks in the plastic flow process, which helps prevent deformations and improper mold filling.
Design optimization
We propose modifications that improve functionality and reduce production costs – by standardizing wall thicknesses, simplifying shapes, and replacing solid sections with ribbing.
Prototype manufacturing
Depending on the complexity and size of the part, we can provide prototype production using 3D printing based on 3D data.
Collaboration with the toolshop
Our toolshop handles the production and repair of molds and assists with process optimization. It also performs Mold Flow analysis to ensure better manufacturing results.
Selection of the right material
We recommend the appropriate plastic based on the required product properties, whether it’s strength, flexibility, chemical resistance, or thermal stability.
Kompletní návrh designu
Od prvotní konzultace až po finální prototyp Vám pomůžeme s návrhem dílu tak, aby splňoval požadované vlastnosti i technologické požadavky výroby.
Mold Flow analýza
Pomocí simulací dokážeme predikovat vady a rizika procesu tečení plastů, což pomáhá předejít deformacím nebo špatnému plnění formy.
Optimalizace designu
Navrhujeme úpravy, které zlepšují funkčnost a snižují výrobní náklady – sjednocujeme tloušťky stěn, zjednodušujeme tvary a nahrazujeme plné části žebrováním.
Prototypová výroba
Podle složitosti a velikosti výlisku jsme schopni na základě 3D dat zajistit prototypovou výrobu pomocí 3D tisku.
Spolupráce s nástrojárnou
Naše nástrojárna zajišťuje výrobu a opravy forem a pomáhá s optimalizací procesů. Přes ni také provádíme Mold Flow analýzu pro lepší výsledky výroby.
Výběr správného materiálu
Doporučíme vhodný plast podle požadovaných vlastností výrobku, ať už jde o pevnost, pružnost, chemickou odolnost nebo tepelnou stabilitu.
Custom-Made Plastic Parts
- Weight Range | Parts from 1 g to 1 kg with a focus on precision and high-quality processing.
- Size Variability | We manufacture small and large plastic parts, e.g., technical components, boiler covers, or 2L flower pots.
- Manufacturing Technology | We specialize in single-component plastic injection molding that ensures strength and reliability.
- Specifications | We offer a wide range of options for technical and functional applications but do not produce clear, transparent parts.
Examples of Our Plastic Parts
QUALITY ASSURANCE IN PLASTIC INJECTION MOLDING
In the area of quality control, our plastic injection molding department is equipped with modern technology and sophisticated tools to ensure the precision and reliability of our products. Measurements are performed using a CNC 3D touch probe, allowing us to achieve a high level of accuracy and process capability. Additionally, we utilize profile projectors, scanners, CMM machines, and other measuring instruments operated by qualified personnel. This combination of advanced technology and expertise enables our plastic injection molding facility to guarantee quality at every stage of the manufacturing process.
Precision Thanks to Our In-House Metrology Lab
- Methods Used | Contact (CMM) and non-contact (optical systems, laser scanners) methods are employed for detailed analysis of dimensions, geometry, and surface.
- Automated vs. Manual Measurement | Automated systems are used for complex and repetitive measurements with high accuracy, while manual methods are applied for quick checks and simple dimensions.
- Measurement Frequency and Procedure | Continuous inspection during production (CMM, gauges, calipers), periodic sampling for detailed analysis, and final inspections.
- Accuracy and Technology | We achieve tolerances up to ±0.01 mm using advanced technologies such as triangulation, structured light, and CAD comparison.
- Measurement of Challenging Materials | For glossy, reflective, and transparent materials, we use mattifying sprays and optimized optical settings.
- Software Analysis and Reverse Engineering | We compare measured data with CAD models and enable reverse modeling for technical design purposes.
Certifications
- ISO 9001 | We comply with the international quality management standard focused on ensuring consistent product and service quality.
- IATF 16949 | We are preparing to implement this automotive industry standard, which emphasizes process improvement, defect prevention, and quality management in the supply chain. Implementation is planned for 2027.
- ISO 14001 | We meet the requirements of this environmental management standard, helping us effectively manage environmental responsibility and minimize environmental impact, even without plans to apply for certification.
LOGISTICS AND TRANSPORT
Efficient Just-in-Time (JIT) Deliveries
We ensure deliveries exactly when the customer needs them, minimizing inventory and optimizing production processes.
Flexible Shipping Thanks to Our Own Warehouse
For regular orders with weekly frequency, we can provide expedited deliveries within 7–14 days. For other orders, delivery times depend on material availability, but never exceed one month.
International Shipping Within the EU and Overseas
We ship to European Union countries with the option to customize transportation according to customer requirements. For shipments to the USA and Mexico, customers handle their own transportation due to customs regulations.
Naši spokojení zákazníci
Our Happy Clients
CONTACT
Ing. Petr Rylko
Injection Molding Project Manager
Phone: +420 702 180 203
Email: petr.rylko@mepac.cz
With years of experience in plastic injection molding, production optimization, and collaboration with industry partners, I focus on efficient solutions that meet the highest standards of quality and precision.
If you need a consultation, a price quote, or technical information, please do not hesitate to contact me. I am available to assist with any inquiries related to our plastic molding services.
To expedite communication, please provide as many details about your request as possible — such as material type, project scope, deadlines, or specific technical requirements. If you have drawings or 3D models, please attach them to your email. I am happy to help you find the best solution for your production needs.