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Hot Sprue Bushings
Our patented internally heated Equatemp® Hot Sprue Bushings provide ultimate temperature control and uniformity. The ceramic insulator compacted near its theoretical limits ensures the highest heat transfer rate, resulting in longer heater life. Extra machine stock at the end of the bushings, which is an integral part of the inner core and body shell, allows for special tip configurations.
Equatemp® Hot Sprue Bushings are offered in three styles: Single Zone MB series, Replacement Tip RB series, and Dual Zone MD series.
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Product Features
- High purity ceramic insulator compacted to its near theoretical limits ensures highest heat transfer rate
- Predetermined wattage distribution, provides even heat along its entire body
- Air Gaps machined around its head and body eliminate secondary machining operations on molds
- Optional extra stock at the end of the bushing allows for custom machining
- Removeable thermocouple can be inserted into a provided thermowell and is located at the tip
- Independent dual element construction available for processing sensitive resins, or for other special applications
- Constructed out of H-13 tool steel
- Heat treated up to 35Rc
Product Benefits
- Longer heater life
- Better melt flow
- Eliminates secondary machining operations on molds
- More accurate melt temperature reading
