The O-ring material can be one of the follows: FPM, FKM, MVQ, EPDM, NBR, HNBR, CR, CO, ACM, PU, etc. we choose the material in accordance with the operating mode. To guarantee stable stopping properties, mold designers take account of elasticity, wear resistance, oil resistance, high temperature resistance and ageing resistance as important technology parameters.

We have 45°and 180°mould dividing surface in accordance with different operating mode.

Dimensions and tolerance of O-rings make as per GB3452.1-92 standard and formulas are designed respectively according to GB7527-87, HG2021-91, HG2181-91,HG/T2333-92 standards. (Chinese standards)