Mold components Spark Industries has expanded its product line with integrally heated sprue bushings. The sprue bushings are made of H13 full hard tool steel, and are available with a standard head radius of 0.5-inch or 0.75-inch radius head, as well as custom sizes upon request. Replaceable type-J thermocouples are close to the flow channels.
What’s new? The sprue bushings.
Benefits Superior heat transfer, and the ability to process a wide range of resins. The sprue bushings provide minimum pressure loss and allow for rapid gate freeze, thanks to the design of their flow channels, which terminate in a reverse taper gate. Gate options include extra stock for machining applications, or a euro-style extra stock with a reduced gate diameter, which can be used in restricted areas.
Spark Industries LLC, Elkhart, Ind., 574-606-4243, https://fastheatbyspark.com/heated-sprue-bushings/
David Tillett | Associate Editor
Associate Editor David Tillett writes and edits for Plastics Machinery & Manufacturing, Plastics Recycling and The Journal of Blow Molding. He covers new products, industry news, patents and consumer and business equipment. He has more than 20 years of experience in daily newspaper, online and magazine journalism.
