• H13, Full Hard Tool Steel
• Integral 240V Heater and Type J Thermocouple
• .500” and .750” Radius Standard Head Options
• Standard Sprue or .500” Extra Machinable Stock
• .750”, 1.000”, and 1.500” Diameter
• Insulating Washer Options Available

Heated Sprue Bushing Head Options

Why Choose an Integrally Heated Sprue Bushing?

Integrally heated sprue bushings have a superior heat transfer and can process a wide range of resins. The streamlined flow channel terminates in a reverse taper gate, providing minimum pressure loss and allowing for rapid gate freeze. The formation of a small gate stub on the part or runner results in a machine hold-time reduction, with no increase in sink marks on the part. There is a replaceable type-J thermocouple located close to the flow channel. They are available in either a standard .500” or .750” radius head or custom as requested. Gate options include a standard sprue for non-machined applications, extra stock for machining applications or a euro style extra stock with a reduced gate diameter for use in restricted areas and less heat loss. 

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