Page 91 - Hot Runner & Control Systems 2020

Integrally Heated Hot Sprue Bushings 89
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Integrally Heated Sprue Bushings .750" SERIES

The Integrally Heated Sprue Bushing is uniquely designed for high performance and reliability for direct gating
applications, even with the most demanding molding cycles and plastic resins.
The product’s advanced heat transfer capability is attributed to its integrally heated design, resulting in a more
uniform heat profile. Maximum heat 600ºF.

A replaceable thermocouple is strategically located near the melt flow channel to optimize processing conditions
with all thermoplastics.

Features and Benefits:
• Distributed watt density – maintains a more uniform heat profile.
• High refractory insulation – provides superior heat transfer.
• Streamlined flow channel – minimizes pressure loss.
• Fully sealed construction – maintains highest product reliability.
• High-grade alloy steel construction – increases durability and longer life.
• Replaceable thermocouple – allows for Type “J” or “K”.

Tip Styles and Flow Diagrams

Maximum heat 600ºF0ºF
Maximum heat 60
Recommended for Hot Runner Systems | 4-Zone and 8-Zone Timer-Based Sequencers
Sprue Tip Extra Stock Sprue Tip
Commodity Resins
Only

Direct Gating Diagram

Insulating Washer Locating Ring

Wire Channel
Power & T/C Bushing Leads
Insulating Washer
Integrally Heated Hot Sprue Bushings | Features and Benefits

Water Line

U.S. 800-626-6653 n Canada 800-387-6600 n dme@milacron.com n www.milacron.com