Barrel Head

Injection Barrel Head

Injection barrel heads and end caps are machined to the machine interface and the required melt-flow path. Built from 42CrMo, 38CrMoAlA, SKD61 and S136 with chromed, nitrided or hardened surfaces, they suit high glass-filled processing with a chromed inner surface for better fluidity.

Frequently Asked Questions

• 01What is the function of a barrel head in an injection molding machine?

  The barrel head connects the front section of the injection barrel with the nozzle and melt flow system. Its geometry affects the transition of molten plastic toward the nozzle.

• 02Why is the barrel head important for injection molding performance?

  Properly matched dimensions and flow passages help maintain stable melt flow and ensure compatibility between the barrel, screw tip assembly, and nozzle.

• 03When does an injection molding barrel head need replacement?

  Replacement may be required when the component is worn, damaged, leaking, or no longer meets the required dimensional and sealing specifications.

• 04Can ROOTIER manufacture a barrel head based on an existing component?

  Yes. ROOTIER can manufacture replacement barrel heads according to drawings, dimensions, machine models, or customer-supplied samples.