Posi-Melt™ Extrusion Screws
Posi-Melt™ Multipurpose Screws
Posi-Melt™ XLA Mixing Screws
Posi-Melt™ MB Barrier Screws
Patented Technology certified

Patented Technology

Injection Molding Screws for Plastics Manufacturing

Advanced injection molding screws featuring patented Posi-Melt™ technology for superior plastic melting, mixing, and processing. Our barrier screws, extrusion screws, and multipurpose designs deliver up to 60% increased plastic exposure to barrel walls, ensuring uniform melt quality, faster changeovers, and enhanced productivity across all thermoplastic materials.

Our Range of Products

Posi-Melt™ Extrusion Screws

Posi-Melt™ Extrusion Screws

  • Custom Flight Geometry
  • High Throughput Design
  • Low Pressure Drop
Posi-Melt™ Multipurpose Screws

Posi-Melt™ Multipurpose Screws

  • Universal Polymer Compatibility
  • Drop-In Replacement Design
  • Enhanced Energy Efficiency
Posi-Melt™ XLA Mixing Screws

Posi-Melt™ XLA Mixing Screws

  • Advanced Dispersive Mixing
  • Extensional Strain Enhancement
  • Minimal Shear Degradation
Posi-Melt™ MB Barrier Screws

Posi-Melt™ MB Barrier Screws

  • Single-Channel Barrier Design
  • 60% Increased Plastic Exposure
  • Fast Purging Performance

Frequently Asked Questions

What is screw in injection molding?

A screw is the key component that melts, mixes, and meters plastic material in injection molding machines for consistent part quality.

What is the screw diameter in injection molding?

What is a barrier screw?

How does Posi-Melt™ technology improve injection molding performance?

What materials are compatible with these injection molding screws?

Can these screws be retrofitted into existing injection molding machines?

What are the benefits of faster color changeovers?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Automotive Manufacturing

Automotive Manufacturing

Precision injection molded components for automotive interiors, exteriors, and under-hood applications.

Medical Device Manufacturing

Medical Device Manufacturing

Sterile plastic components for medical devices requiring precise material control and consistency.

Consumer Electronics

Consumer Electronics

High-quality plastic housings and components for consumer electronic devices and appliances.

Industrial Processing

Industrial Processing

General industrial plastic processing and manufacturing across diverse thermoplastic applications.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Precision Injection Molding Screw Barrels

MD Plastics specializes in precision injection molding screw barrels and plasticating systems designed to maximize performance, efficiency, and profitability. Our bimetallic construction and patented technologies deliver superior melt quality, extended equipment life, and reduced downtime for injection molding operations across diverse industries.
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Posi-Melt™ Multipurpose Screws

Feed Screws for Injection Molding and Extrusion

Advanced feed screws engineered for injection molding and extrusion applications. Featuring patented Posi-Melt™ technology that increases plastic exposure to barrel walls by up to 60%, delivering superior mixing, uniform melt quality, and faster material changeovers for enhanced productivity.
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Why Injection Molders Choose Md Plastics Inc

25+ Years Engineering Excellence

Founded by Mike Durina with AAS in Plastic Engineering and BS in Industrial Engineering, delivering proven plasticating solutions since 1999.

Patented Posi-Melt™ Technology

Multiple U.S. patents for innovative screw designs that increase plastic exposure by 60% for superior melt quality and productivity.

Custom Design & Direct Support

Direct consultation with founder Mike Durina and custom engineering using proprietary design software for optimized solutions.

Get Custom Injection Molding Screw Solutions Today

Connect with our engineering team for technical consultation and custom screw design tailored to your specific application requirements.

Contact Us Today

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