High Performance Plasticating Barrels
Posi-Melt™ XLA Mixing Screws
Posi-Melt™ Extrusion Screws
Posi-Melt™ MB Barrier Screws
Posi-Melt™ Multipurpose Screws
Inject-EX™ Plasticating System

Nitrided Extruder Screw Barrels: Precision & Performance

Nitrided extruder screw barrels engineered for superior wear resistance and extended service life in demanding plastics processing applications. Our precision-manufactured barrels feature hard abrasion-resistant liners bonded to high-strength steel backing, delivering optimal performance across injection molding, extrusion, blow molding, and LSR applications with diameters from 14mm to 250mm.

Our Range of Products

High Performance Plasticating Barrels

High Performance Plasticating Barrels

  • Bimetallic bonded liner construction
  • Precision honed close tolerance fit
  • Made in USA with quality assurance
Posi-Melt™ XLA Mixing Screws

Posi-Melt™ XLA Mixing Screws

  • Extensional strain enhancement mixing
  • Low pressure drop with high output
  • Minimal shear degradation design
Posi-Melt™ Extrusion Screws

Posi-Melt™ Extrusion Screws

  • 60% increased barrel wall exposure
  • Patented flight geometry technology
  • Faster color changeovers achieved
Posi-Melt™ MB Barrier Screws

Posi-Melt™ MB Barrier Screws

  • Single-channel barrier design
  • Lower cost than multi-channel designs
  • Complete pressurization throughout
Posi-Melt™ Multipurpose Screws

Posi-Melt™ Multipurpose Screws

  • Universal polymer compatibility
  • Drop-in OEM replacement ready
  • Reduced manufacturing downtime
Inject-EX™ Plasticating System

Inject-EX™ Plasticating System

  • Stationary screw revolutionary design
  • Real-time melt density verification
  • Ultra-precise shot control mechanism

Frequently Asked Questions

What are the advantages of nitrided extruder screw barrels?

Nitrided barrels provide superior wear resistance, extended service life, and consistent precision through hard abrasion-resistant liners bonded to high-strength steel backing for optimal thermal performance.

What diameter range is available for plasticating barrels?

How does bimetallic construction improve barrel performance?

Can existing barrels be relined or repaired?

What materials are compatible with these screw barrels?

How long does custom barrel design and delivery take?

What technical support is available after purchase?

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 requiring consistent quality.

Medical Device Manufacturing

Medical Device Manufacturing

Sterile plastic components for medical devices and equipment requiring FDA-compliant precision molding and material consistency.

Consumer Electronics

Consumer Electronics

High-precision plastic housings and components for smartphones, computers, and electronic devices requiring tight tolerances.

Industrial Processing

Industrial Processing

Continuous extrusion of pipe, profile, sheet, film, and compounding operations requiring reliable high-volume production.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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High-Quality Nitrided Single Screw Barrels

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Why Plastics Processors Choose Md Plastics Inc

Patented Innovation Leadership

Over eight patents in plasticating technology including Posi-Melt™ screws and Inject-EX™ systems that deliver measurable performance improvements and competitive advantages.

25+ Years Manufacturing Excellence

Since 1999, we've engineered precision plasticating components for global leaders in automotive, medical device, and consumer electronics manufacturing with proven reliability.

Custom Engineering Expertise

Direct consultation with founder Mike Durina ensures optimal barrel and screw design tailored to your specific machine requirements, materials, and production goals.

Get Expert Guidance on Your Nitrided Barrel Selection

Our technical team will review your application requirements and recommend the optimal barrel configuration. Expect a detailed quote within 24-48 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