Haoyu Precision Mould Components Limited

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1. Core Sleeves

Material is SKH51 and Hardness is 59~61HRC
Material is SKD61,Hardness is 40-45HRC and Nitrided surface Hardness is HV900 and higher. Coaxiality kept within dia.0.005 mm,Dia.0.3-14mm,The end may be customized

2. Guide Posts and Bushings

Material is SUJ2 and Hardness is HRC58 and above,The size and position precision of guide pin and guide bushing shall be kept within 0.003mm. Particularly for high rigidity guide pin assembly,the arrangement density of steel ball on the retainer ...

3. Precision Punches and Dies

The punching and flanging punch-die and perforation punch may amount to a precision of 0.003mm,a roundness and coaxiality of dia.0.002mm，and a bending strength of 4400Mpa. The material HAP40 is uniform in itself. Further subject to special ...

4. Gas springs

Gas springs make use of the simple fact that gas pressure creates a force that is proportional to the surface area with which it makes contact. This means,the piston rod in the gas spring is used as a spring element.

A gas spring will also ...

5. Stepped Ejector Pins

Material is SKH51 and Hardness is 59-61HRC.The minimum diameter of pin to be machined is 0.2mm,with the maximum precision up to 0.002mm.Further machining such as chrome-plating and character-engraving is allowed for working end. Unremitting ...