
Posi-Melt™ Multipurpose Screws
- Un-tangential Flight Geometry
- Faster Color Changeovers
- Complete Pressurization





Patented Technology
ISO 9001 Quality
Injection molding screws engineered for superior melt quality and processing efficiency. MD Plastics offers patented Posi-Melt™ barrier screws, multipurpose screws, mixing screws, and extrusion screws designed to disrupt laminar flow, increase plastic exposure to barrel walls by up to 60%, and deliver uniform homogenized melt. These advanced plasticating components reduce cycle times, minimize scrap, and improve material changeover speeds across all polymer types for injection molding, extrusion, and blow molding applications.
Talk to our experts for custom solutions and tailored guidance.
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How much do plastic injection molds cost?
Injection mold costs vary widely based on complexity, size, and material. Simple molds start around $3,000-$6,000, while complex multi-cavity production molds can exceed $100,000.
What is the typical price range for injection molding screws?
How does Posi-Melt™ technology reduce manufacturing costs?
What diameter range is available for custom injection molding screws?
Can these screws be retrofitted into existing injection molding machines?
What thermoplastic materials are compatible with these screws?
How long does custom screw manufacturing and delivery take?
Talk to our experts for custom solutions and tailored guidance.

Precision injection molded components with consistent quality for interior trim, dashboards, and under-hood parts.

Sterile plastic components requiring ultra-precise melt quality for surgical instruments and diagnostic equipment.

High-quality plastic housings and enclosures with tight tolerances for smartphones, tablets, and devices.

Continuous extrusion and blow molding operations requiring superior melt uniformity and high throughput.
Talk to our experts for custom solutions and tailored guidance.



Our proprietary screw designs increase plastic exposure to barrel walls by 60%, delivering superior melt quality and consistency across all polymer types for reduced scrap and improved part quality.
Founded by industry veteran Mike Durina with decades of injection molding experience, we combine technical knowledge, design software, and materials expertise to optimize your processing efficiency.
Direct consultation with our founder ensures every screw is tailored to your specific resin, throughput goals, and machine configuration for maximum performance and ROI.
Get expert guidance on screw selection and receive a detailed quote tailored to your processing needs. Our team responds within 24 hours with technical recommendations.
For immediate assistance, feel free to give us a direct call at 3304825100 You can also send us a quick email at info@mdplastics.com
For immediate assistance, feel free to give us a direct call at 3304825100 You can also send us a quick email at info@mdplastics.com