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    • A-J Gearbox >
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MGB
  • New Machines
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    • MGB Guillotines
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    • MGB Water Cooling Tanks
  • Machine Services
    • Extruder Repair
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    • Barrel and Screw Repair
    • Control Panel Repair
    • Screen Changer Repair
    • Downstream Equipment Repair
    • Pelletizer Repair
  • Gearbox Rebuilding
    • A-J Gearbox >
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MGB Roto Molding Services & Repair

MGB Roto Molding Rotational Molding ( BrE moulding) involves a heated hollow mold which is filled with a charge or shot weight of material. It is then slowly rotated (usually around two perpendicular axes) causing the softened material to disperse and stick to the walls of the mold. In order to maintain even thickness throughout the part, the mold continues to rotate at all times during the heating phase and to avoid sagging or deformation also during the cooling phase. The process was applied to plastics in the 1940s but in the early years was little used because it was a slow process restricted to a small number of plastics. Over the past two decades, improvements in process control and developments with plastic powders have resulted in a significant increase in usage.
​
Rotocasting (also known as rotacasting), by comparison, uses self-curing resins in an unheated mould, but shares slow rotational speeds in common with rotational molding. Spin casting should not be confused with either, utilizing self-curing resins or white metal in a high speed centrifugal casting machine.
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MGB Engineering Company
1099 Touhy Avenue • Elk Grove Village, IL 60007
Tel:  847-956-7444 • Fax: 847-956-7171
Copyright 2015. MGB Engineering Co.. All rights reserved.
Website services provided by: Newmedia Design Solutions, Inc.  Site created and managed by:  www.newmediab2b.com/
  • New Machines
    • MGB Screen Changers
    • MGB Classifiers
    • MGB Densifiers
    • MGB Guillotines
    • MGB Air Knives
    • MGB Strand Dies
    • MGB Water Cooling Tanks
  • Machine Services
    • Extruder Repair
    • Granulator/Shredder Repair
    • Barrel and Screw Repair
    • Control Panel Repair
    • Screen Changer Repair
    • Downstream Equipment Repair
    • Pelletizer Repair
  • Gearbox Rebuilding
    • A-J Gearbox >
      • Akron Gearbox Rebuilding
      • Alpha Marathon Gearbox Rebuilding
      • Battenfeld Gearbox Rebuilding
      • Berlyn Gearbox Rebuilding
      • Black Clawson Gearbox Rebuilding
      • Brabender Gearbox Rebuilding
      • Cincinnati Milacron Gearbox Rebuilding
      • Crown Gearbox Rebuilding
      • Davis Standard Gearbox Rebuilding
      • Egan Gearbox Rebuilding
      • Falk Rexnord Gearbox Rebuilding
      • Flender Gearbox Rebuilding
      • Gloucester Gearbox Rebuilding
      • Graham Engineering Gearbox Rebuilding
    • H-Z Gearbox >
      • Hartig Gearbox Rebuilding
      • HPM Gearbox Rebuilding
      • Killion Gearbox Rebuilding
      • Link-Belt Gearbox Rebuilding
      • Lufkin Gearbox Rebuilding
      • Merritt Gearbox Rebuilding
      • NRM Gearbox Rebuilding
      • Philadelphia Gearbox Rebuilding
      • Prodex Gearbox Rebuilding
      • PTI Gearbox Rebuilding
      • Sterling Gearbox Rebuilding
      • Textron Cone Drive Gearbox Rebuilding
      • Wayne Gearbox Rebuilding
      • Welex Gearbox Rebuilding
  • Used Machines
  • About Us
    • Terms and Conditions
    • Shipping Policy
  • Contact Us