SINODRILLS Coupling Sleeves

Coupling is used for connecting shank adapter and extension drill rod together, or for connecting two extension rods together. Besides normal equal couplings, we also offer reducing couplings that are able for changing thread type and size. The couplings we offer can be applied for our top hammer drilling system, suitable for drilling duties in tunneling, construction, mining, quarrying, etc.

Parameters

• Thread type: R25, R28, R32, R38, T38, T45, T51

• Diameter: 35mm, 40mm, 45mm, 55mm, 63mm, 66mm, 72mm, 76mm

• Length: 150mm, 155mm, 170mm, 180mm , 180mm, 190mm, 210mm , 235mm

• Coupling type: Semi-bridge, Full bridge, Adapter Coupling

Features

• Premium steel as material, precision CNC for manufacturing, accuracy and reliability assured;

• High transmission efficiency grants high drilling efficiency for the drilling system.

Applications

Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.