Automotive
Precision plasticating solutions for high-quality automotive components requiring consistent melt quality and performance.
Posi-Melt™ MB Barrier Screws
Price Available on Request
Posi-Melt™ MB Barrier Screws
AProprietary MB Barrier Geometry
Extensional Strain Enhancement
Coupling Flexibility
Price Price Available on Request
Worldwide shipping available
Custom designs available
Certifications: Patented Technology
Trusted by Hundreds of Companies Globally
Technical Specifications — Posi-Melt™ MB Barrier Screws
Proprietary barrier screw design delivering efficient melting, superior pressurization, and fast purging performance.
PARAMETER
SPECIFICATION
Product Name
Posi-Melt™ MB Barrier Screw
Technology Type
Proprietary single-channel barrier screw with extensional melt enhancement
Design Innovation
Forces polymer between barrier flight and barrel wall for complete melting and uniform mixing
Coupling Compatibility
Compatible with Posi-Melt™ XLA Mixing Section for added homogenization
Diameter Range
14 mm – 240 mm (custom sizes available)
Material Compatibility
PP, HDPE, LDPE, PS, PET, ABS, and other thermoplastics
Conveying Efficiency
Optimized solids conveying and pressurization through transition and metering zones
Edge Design
Precisely engineered leading and trailing radii to eliminate low-velocity regions
Purging Performance
Single-channel geometry promotes rapid melt purge and quick color/material changeovers
Manufacturing Cost
Lower-cost production versus multi-channel barrier screw designs
Performance Benefits
Complete pressurization, efficient melting, uniform mixing, and improved throughput
Construction Material
Tool steel, bimetallic, or specialty alloy options for wear and corrosion resistance
Installation
Direct retrofit for most OEM injection and extrusion systems
Country of Origin
🇺🇸 United States
Engineered for Superior Performance
Our patented Posi-Melt™ technology delivers unmatched melt quality and processing efficiency across all polymer types.
Patented Technology
Proprietary feed screw technology that alters flight pitch and root through the melting section, making them un-tangential to disrupt laminar flow for superior mixing.
Enhanced Melt Quality
Increases plastic exposure to barrel wall by up to 60%, delivering uniform homogenized melt with consistent temperature and material distribution.
Faster Changeovers
Quicker color and material changeovers reduce downtime and increase productivity, leading to lower manufacturing costs and improved operational efficiency.
Complete Pressurization
Complete pressurization throughout ensures excellent conveying, melting, and pumping performance with positive pumping angle and major flight OD wiping action.
High Throughput
Designed for low pressure drop and high throughput with appropriate leading and trailing edge radii to avoid low-velocity sections and maximize pressure.
Versatile Applications
Suitable for injection molding, extrusion, blow molding, LSR applications, 3D printing, rubber machinery, and corrosion-resistant environments.
Frequently Asked Questions
What diameter range is available for Posi-Melt™ screws?
Our Posi-Melt™ screws are available in diameters ranging from 14mm through 240mm, covering a wide range of injection molding and extrusion applications.
Which polymer materials are compatible with Posi-Melt™ screws?
Posi-Melt™ screws work with all major polymers including LCP, PC, Rigid PVC, PP, HDPE, LDPE, PS, PET, and ABS materials for various processing applications.
How do Posi-Melt™ screws reduce manufacturing costs?
The enhanced mixing and uniform melt delivery result in quicker color and material changeovers, reduced scrap rates, and improved cycle times, all contributing to lower manufacturing costs.
Can I get a custom Posi-Melt™ screw designed for my specific application?
Yes, MD Plastics offers direct consultation with company owner Mike Durina for custom screw design, along with technical knowledge and software programs for optimization to match your specific requirements.
Get Technical Documentation
Access detailed specifications, installation guides, and technical resources for Posi-Melt™ screws.
Industries We Serve
Serving diverse sectors with specialized plasticating solutions for enhanced manufacturing performance.
Complete Plasticating Solutions
Explore our comprehensive range of complementary products designed to optimize your entire plasticating system performance.
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Inject-EX™ Plasticating System
Revolutionary system with stationary Posi-Melt™ screw providing consistent output-recovery time, ultra-precise shot control, and enhanced energy efficiency with smaller footprint.
Need a Custom Plasticating Solution?
Speak directly with Mike Durina for personalized consultation and custom screw design tailored to your specific requirements.
Let's Optimize Your Processing Together
Ready to experience the benefits of Posi-Melt™ technology? Contact us for a custom consultation and quote tailored to your specific application.
For immediate assistance, call (330) 482-5100 or email us at info@mdplastics.com
For immediate assistance, call (330) 482-5100 or email us at info@mdplastics.com