Expert Injection Molding Screw and Barrel Repair Services
When your injection molding equipment underperforms, precision repair and refurbishment can restore optimal plasticating performance without the cost of complete replacement. Md Plastics Inc specializes in comprehensive screw and barrel repair services backed by advanced engineering expertise, proprietary diagnostics, and over two decades of industry innovation to maximize your equipment life and production efficiency.
Our Injection Molding Screw and Barrel Repair Services
Comprehensive repair and refurbishment solutions engineered to restore peak plasticating performance and extend equipment life.
Screw Refurbishment & Rebuilding
Complete screw restoration including flight repair, wear compensation, and precision re-machining to original specifications. We utilize advanced surface treatments and hardening processes to restore and enhance screw performance and longevity.
Specialized repair and replacement services for check valves and non-return mechanisms. We restore proper sealing, eliminate backflow issues, and improve shot-to-shot consistency with precision-machined components including our MDP™ Performance Non-Return Valves.
Advanced protective coatings including nitrided tool steel, PTA welding, Colmonoy or Stellite overlays, Armoloy XADC coatings, and HVOF Tungsten carbide applications. These treatments dramatically extend component life when processing abrasive, corrosive, or adhesive materials.
Comprehensive component evaluation using advanced metrology and process analysis. Our engineers identify root causes of wear, assess material compatibility issues, and recommend targeted repairs or upgrades to resolve process inefficiencies and improve melt quality.
Injection unit modifications to optimize equipment for different applications or materials. Convert existing machines to handle new material requirements or production volumes without purchasing entirely new equipment, maximizing your capital equipment investment.
Precision-Engineered Repairs That Restore Performance
At Md Plastics Inc, screw and barrel repair isn't just about fixing wear—it's about engineering better performance. Our team combines proprietary diagnostic tools like the Melt-Profiler™ system with decades of plasticating expertise to analyze your components, identify process inefficiencies, and implement precision repairs that restore optimal melt quality. Whether addressing abrasive wear, corrosive damage, or material adhesion issues, we apply advanced surface treatments and precision machining to extend equipment life and improve production consistency, helping you avoid costly downtime and maximize ROI on existing equipment.
Client Success Stories
Proven Results
Trusted by leading manufacturers worldwide to restore and optimize plasticating performance.
"MD Plastics' screw and barrel retrofit on our 20-year-old machine gave it new life. The improvement in shot-to-shot consistency and overall performance is remarkable. We were considering replacing the entire machine, but their solution was far more cost-effective and delivered excellent results. Smart investment that extended our equipment life."
Daniel Foster
"The screw and barrel set we ordered for processing medical-grade silicone has performed exceptionally. The surface finish and material selection are perfect for our stringent requirements. MD Plastics understood our regulatory needs and provided complete material certifications. Process validation went smoothly. Reliable partner for critical applications."
Dr. William Chen
"We purchased their complete plasticating system package - screw, barrel, non-return valve, and nozzle. The components work together seamlessly and have transformed our processing capabilities. MD Plastics' systems engineering approach ensures optimal compatibility between components. Setup and commissioning support was excellent. Highly recommended."
Christopher Davis
"The analytical consultation process MD Plastics provided was worth the investment. They used their Melt-IQ system to diagnose issues we couldn't identify with standard process monitoring. The recommendations they made improved our process capability index substantially. Their scientific approach to troubleshooting is impressive and effective."
Kevin Barnes
"We ordered custom feed screws for our compounding extruders. MD Plastics' design improved our mixing efficiency and reduced residence time variability. Output consistency is much better, and we're hitting target specifications more reliably. The engineering team was collaborative throughout the design process. Very pleased with the results."
Nicole Stevens
"MD Plastics' screw and barrel retrofit on our 20-year-old machine gave it new life. The improvement in shot-to-shot consistency and overall performance is remarkable. We were considering replacing the entire machine, but their solution was far more cost-effective and delivered excellent results. Smart investment that extended our equipment life."
Daniel Foster
"The screw and barrel set we ordered for processing medical-grade silicone has performed exceptionally. The surface finish and material selection are perfect for our stringent requirements. MD Plastics understood our regulatory needs and provided complete material certifications. Process validation went smoothly. Reliable partner for critical applications."
Dr. William Chen
"We purchased their complete plasticating system package - screw, barrel, non-return valve, and nozzle. The components work together seamlessly and have transformed our processing capabilities. MD Plastics' systems engineering approach ensures optimal compatibility between components. Setup and commissioning support was excellent. Highly recommended."
Christopher Davis
"The analytical consultation process MD Plastics provided was worth the investment. They used their Melt-IQ system to diagnose issues we couldn't identify with standard process monitoring. The recommendations they made improved our process capability index substantially. Their scientific approach to troubleshooting is impressive and effective."
Kevin Barnes
"We ordered custom feed screws for our compounding extruders. MD Plastics' design improved our mixing efficiency and reduced residence time variability. Output consistency is much better, and we're hitting target specifications more reliably. The engineering team was collaborative throughout the design process. Very pleased with the results."
Nicole Stevens
"MD Plastics' screw and barrel retrofit on our 20-year-old machine gave it new life. The improvement in shot-to-shot consistency and overall performance is remarkable. We were considering replacing the entire machine, but their solution was far more cost-effective and delivered excellent results. Smart investment that extended our equipment life."
Daniel Foster
"The screw and barrel set we ordered for processing medical-grade silicone has performed exceptionally. The surface finish and material selection are perfect for our stringent requirements. MD Plastics understood our regulatory needs and provided complete material certifications. Process validation went smoothly. Reliable partner for critical applications."
Dr. William Chen
"We purchased their complete plasticating system package - screw, barrel, non-return valve, and nozzle. The components work together seamlessly and have transformed our processing capabilities. MD Plastics' systems engineering approach ensures optimal compatibility between components. Setup and commissioning support was excellent. Highly recommended."
Christopher Davis
"The analytical consultation process MD Plastics provided was worth the investment. They used their Melt-IQ system to diagnose issues we couldn't identify with standard process monitoring. The recommendations they made improved our process capability index substantially. Their scientific approach to troubleshooting is impressive and effective."
Kevin Barnes
"We ordered custom feed screws for our compounding extruders. MD Plastics' design improved our mixing efficiency and reduced residence time variability. Output consistency is much better, and we're hitting target specifications more reliably. The engineering team was collaborative throughout the design process. Very pleased with the results."
Nicole Stevens
The Md Plastics Difference
Why Choose Md Plastics Inc?
Over 25 years of plasticating innovation and engineering excellence.
Patented Technology
Exclusive access to proprietary diagnostic tools and repair methodologies backed by eight granted patents in plasticating technologies.
Engineering Expertise
Dedicated application engineers who analyze material behavior, troubleshoot process issues, and redesign components for superior performance beyond simple restoration.
Advanced Materials
High-quality tool steels and proprietary surface treatments including nitriding, PTA welding, and HVOF tungsten carbide to maximize component longevity.
Proven Results
Documented performance improvements including 58% better shot consistency and 20% cycle time reductions for clients across medical, automotive, and consumer electronics sectors.
Meet Our Founder
Industry-leading expertise in plasticating technologies since 1978.
Mike Durina
Founder
Mike Durina founded Md Plastics Inc in 1999 after a distinguished 16-year career at Spirex, where as VP of Sales & Service he grew the company from $1.8 million to $22 million in revenue. With an AAS in Plastic Engineering from Ferris State University and a BS in Industrial Engineering from Kent State University, Mike has dedicated over four decades to advancing plasticating technologies. His deep technical knowledge and innovative mindset have resulted in eight granted patents, including revolutionary technologies like the Melt-Profiler™, Inject-EX™, Mini-Shut™, and MDP™ Performance Valve. Mike's philosophy centers on engineering better solutions rather than incremental improvements, combining rigorous analytical methods with practical manufacturing experience to help injection molders achieve greater profitability through superior plasticating performance.
Frequently Asked Questions
How do I know if my screw and barrel need repair or replacement?
Key indicators include increased shot-to-shot variation, visible wear on screw flights or barrel interior, longer cycle times, degraded melt quality, material drooling or stringing, and difficulty maintaining process temperatures. Our diagnostic engineering analysis can definitively assess component condition and recommend the most cost-effective solution.
What is the typical turnaround time for screw and barrel repairs?
Standard repair turnaround is typically 2-4 weeks depending on the extent of refurbishment required and surface treatment specifications. We offer expedited services for critical production situations and can provide loaner equipment in some cases to minimize downtime.
Can you repair screws and barrels for any machine brand or size?
Yes, Md Plastics Inc services components from all major injection molding machine manufacturers across a wide range of sizes. Our engineering team has extensive experience with diverse equipment configurations and can provide custom repair solutions regardless of OEM.
How much does screw and barrel repair cost compared to replacement?
Professional repair and refurbishment typically costs 30-50% less than new component replacement while delivering comparable or superior performance. Our engineering analysis includes cost-benefit evaluation to ensure repair represents the optimal investment for your specific situation.
What surface treatments do you recommend for abrasive materials?
For highly abrasive materials like glass-filled or mineral-filled resins, we recommend HVOF tungsten carbide coatings or Colmonoy/Stellite overlays on screw flights and barrel surfaces. These treatments provide exceptional wear resistance and can extend component life 3-5x compared to standard tool steel.
Will repaired components perform as well as new ones?
When properly engineered and executed, repaired components often outperform new OEM parts. Our repair process includes precision machining to original specifications, advanced surface treatments, and can incorporate design improvements based on your specific material and process requirements.
Do you offer any warranty on repair work?
Yes, all repair services include a comprehensive warranty covering workmanship and materials. Warranty terms vary based on the scope of work and application requirements. Our team will provide specific warranty details during the proposal process.
Can you modify components during repair to improve performance?
Absolutely. Our engineering team can redesign screw geometry, add mixing elements, modify compression ratios, or apply advanced surface treatments during the repair process to optimize performance for your current materials and process objectives—often delivering better results than the original configuration.
Have Questions About Your Equipment?
Our plasticating experts are ready to evaluate your components and recommend the optimal repair solution.
Patented & Proven
Awards and Recognition
Melt-Profiler™ Patent
Proprietary inline melt temperature measurement technology
MDP™ Performance Valve Patent
Precise control non-return valve technology
Posi-Melt™ Screw Design Patent
Advanced plasticating screw for superior melting and mixing
Ready to Restore Peak Performance?
Contact our engineering team for a comprehensive component evaluation and customized repair proposal.
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