In plastic injection molding, Jinhong spure bushing is a metal part that links the mold with the injection machine. The sprue can also be described as a part of the runner, which allows the molten plastic material to be injected into the mold through the nozzle of an injection machine. The steel spure bushing produced of Jinhong passed JH Standard. If you are interested in the products, you can view our website to know more information.

Information of Spure Bushing-A Type:

Material Inner Hardness Surface Hardness Heat Treatment
S45C SR section HRC50°~55° Partial
HRC60°±2° HRC60°±2° Vacuumed
SKD11 HRC36°±2° HV1000°±100° Nitrided
SKD61 HRC52°±2° HRC52°±2° Vacuumed

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