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Our company can customize all kinds of ring die with different hole size, based on customers’ demand, or detailed drawing. 

Smooth finish of the hole inner-wall can reduce the drag when material enters into the hole, which can help increase the production, while well-distributed feed inlet can ensure the uniformity.  

The hardness for 46Cr13 ring die is 52-56, and difference between each part is less than 2.

After heating(under 1050℃) and refrigeration and quenching, the ring die comes into some deformation infinitesimally, 0.3-1mm, and after being processed by grinder, the deformation can decrease to 0.05-0.15mm. 

■ Full-automatic CNC deep hole gun drill

■ Full-automatic ring die hole chamfering machine

■ Vacuum oven heat-treatment equipment

■ Concentric circle amendment grinder