Barrels

Plasti-Co Barrels for Molding Machines

The barrel of a molding machine is one of the most important components, supporting the rotating and/or reciprocating screw and having consistent heat distribution across the entire barrel. The barrel must be well-suited to the demands of the machine and the materials being processed. Plasti-Co offers a wide range of barrels for extrusion and injection molding machines, as well as repair services & support, utilizing our expert technicians.

Types of Barrels for Molding Machines

The type of barrel you utilize for your extrusion or injection molding machine will affect many aspects of your injection or extrusion system, which is why it’s so important to choose the right one. Your budget, your efficiency and your finished products will thank you. Our Sales, Technical Support Engineers and Customer Service are ready to help you.

Bimetallic Barrels

All Plasti-Co bimetallic barrels are manufactured as one-piece units. This can avoid some of many of the problems that can occur with multi-piece designs. Our superior one-piece design eliminates distortion related problems common with multi-piece designs.

Here’s a look at our bimetallic barrels for your injection molding or extrusion machines:

  • PC-100 Nickel/Boron Bimetallic Lining: The PC-100 nickel-boron base alloy delivers excellent abrasion resistance, very high hardness and a very low friction coefficient that helps prevent screw and check ring galling. This particular liner works well with low to moderately abrasive materials and has a Rockwell C 60-65 hardness range.
  • PC-500 Corrosion Resistant Bimetallic Lining:The PC-500 utilizes a cobalt/nickel base alloy with high chromium and boron content for corrosion resistance and moderate wear resistance.  Hardness of 50-55 Rockwell C.  Ideal for processing fluoropolymers and polyvinyl chloride resins.
  • PC-700 High Abrasion Resistance Tungsten Carbide Bimetallic Lining:The PC-700 utilizes the best wear and corrosion-resistant, high tungsten carbide content alloy with a chromium-boron-nickel alloy matrix. Over 80% of the alloy has tungsten carbides and chromium borides, achieving hardness of Rockwell C70.

With so many different factors influencing the barrels behavior, it’s important to work with the experts who can evaluate your unique application requirements for the best solution and pairing of your application with the correct selection of barrel and screws.

Barrel Repair and Alterations by Plasti-Co Engineers

In addition to barrel production, Plasti-Co engineers and technicians can help repair or alter your existing injection molding or extrusion barrels. One of our service offerings is barrel re-sleeving of worn barrels. After review and collaboration with you, based on our technicians inspection and detailed report, we can install a sleeve inside most worn barrels. The sleeves can be manufactured from most any material new barrels are supplied with, whether tool steel or bimetallic.

Other services we offer for injection molding and extrusion barrels include:

  • Injection barrel repair
  • Extrusion barrel repair
  • Replacing high-pressure sleeves
  • Removing broken studs from barrel threads
  • Installing vent ports
  • Replacing broken flanges
  • Installing added thermocouple or pressure wells

Partner With PLASTI-CO for Engineered Solutions

With our wide range of services, engineering and manufacturing solutions, Plasti-Co has become a trusted plastics processing partner for businesses throughout North America. Our expert staff of engineers has over 250 years of combined experience in the plastics industry and will work to understand the unique needs of your operation.
Reach out to us today to learn more about our engineered solutions for injection molding and extrusion barrels. Contact us online or give us a call at (800) 521-0704.

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