Mini-Shut™ Automatic Shut-Off Nozzle
Posi-Melt™ Multipurpose Screws
Posi-Melt™ MB Barrier Screws
Inject-EX™ Plasticating System
Posi-Melt™ XLA Mixing Screws
Posi-Shut™ Automatic Shut-Off Valve
MDP™ Performance Non-Return Valve
High Performance Plasticating Barrels
US Patent Protected certified

US Patent Protected

Manufacturing Excellence certified

Manufacturing Excellence

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.

Our Range of Products
Mini-Shut™ Automatic Shut-Off Nozzle

Mini-Shut™ Automatic Shut-Off Nozzle

  • Instant automatic shutoff
  • Universal compatibility
  • Minimal pressure loss design
Posi-Melt™ Multipurpose Screws

Posi-Melt™ Multipurpose Screws

  • Un-tangential flight geometry
  • Enhanced melt uniformity
  • Low pressure drop design
Posi-Melt™ MB Barrier Screws

Posi-Melt™ MB Barrier Screws

  • 60% increased wall exposure
  • Single-channel barrier design
  • Fast purging performance
Inject-EX™ Plasticating System

Inject-EX™ Plasticating System

  • Stationary screw design
  • Real-time melt monitoring
  • Ultra precise shot control
Posi-Melt™ XLA Mixing Screws

Posi-Melt™ XLA Mixing Screws

  • Advanced dispersive mixing
  • Extensional strain enhancement
  • Minimal shear degradation
Posi-Shut™ Automatic Shut-Off Valve

Posi-Shut™ Automatic Shut-Off Valve

  • Replaceable cartridge technology
  • H13 tool steel construction
  • Independent screw operation

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Frequently Asked Questions

What is a barrel in an injection molding machine?

A barrel is the heated cylinder component that houses the plasticating screw and melts polymer pellets into homogeneous melt for injection.

What is screw injection molding?

What is the price of 1000 ton injection molding machine?

How do bimetallic barrels improve performance?

What size range do your barrels cover?

How often should injection molding screws be replaced?

Can you retrofit existing injection molding equipment?

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 molding components for interior, exterior, and under-hood automotive applications

Medical Device Manufacturing

Medical Device Manufacturing

Sterile plastic components and precision molding for medical devices and healthcare applications

Consumer Electronics

Consumer Electronics

Plastic housing components and precision parts for electronic devices and consumer products

Industrial Processing

Industrial Processing

Heavy-duty plasticating systems for industrial plastic processing and manufacturing operations

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Posi-Melt™ Extrusion Screws

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.
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High Performance Plasticating Barrels

Injection Molding Barrels for Industrial Manufacturing

Industrial injection molding barrels engineered for superior performance in plastics processing. Our high-performance plasticating barrels feature bimetallic construction with precision-honed tolerances, designed for injection molding, extrusion, blow molding, and LSR applications across diverse manufacturing environments.
Learn More
Posi-Melt™ Multipurpose Screws

High-Performance Injection Molding Screw Tips

Advanced injection molding screw tips engineered for superior polymer processing performance. Our patented designs deliver enhanced mixing, precise shutoff control, and extended service life across all thermoplastic materials from 14mm to 260mm diameter applications.
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Why Injection Molders Choose MD Plastics

Patented Innovation Leader

Eight patents including revolutionary Inject-EX™, Mini-Shut™, and Posi-Melt™ technologies that deliver measurable performance improvements and competitive advantages.

25+ Years Experience

Founded by Mike Durina with deep plasticating expertise, we've helped thousands of molders improve profitability through better component design and engineering.

Custom Design Solutions

Direct consultation with our founder and proprietary design software ensure optimal barrel bore selection and screw geometry for your specific applications.

Get Expert Consultation for Your Plasticating Requirements

Connect with our technical team for custom barrel and screw design. Receive personalized recommendations within 24 hours.

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