Shijiazhuang Zhongmei Coal Mine Equipment Co., Ltd.

Geologic Drill Rod and Coupling

Geologic Drill Rod and Coupling
Product Detailed

Adopts special geological steel and advanced friction welding method.

For keeping linear effect during heading road, it adopts special geological steel and advanced friction welding method with following features: high strength, super bend-resistance strength, stable welding, long service life, etc.
With the material of top quality alloy that passed heat treatment, the connector has features of powerful weariness-resistance and top shear-resistance. All the machining equipments are advanced numerical control lathe with top efficiency and quality.

Specification

Bore hole Diameter

φ32,φ42,φ50,φ63.5,φ73

oupling Dimension

standard rectangle screw thread



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