Drilling Tools

Our product range contains a wide range of Coupling Sleeves

Coupling Sleeves

Material Metal
Shape Cylindrical
Condition New
Application Drilling Works For Blasting Duties In Tunneling, Construction, Mining, Quarrying, Etc.
Number Of Flower Coupling Sleeve
Country of Origin India
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

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.

Specifications

Thread	Diameter (mm)	Diameter (inch)	Length (mm)	Length (inch)
R25	35	1 19/50	150	5 9/10
R28	40	1 29/50	155	6 1/10
R32	45	1 3/4	170	6 57/64
R38	55	2 5/32	170	6 57/64
T38	55	2 5/32	190	7 33/64
T45	63	2 15/32	210	8 17/64
T45	66	2 19/32	210	8 17/64
T51	72	2 7/8	235	9 1/4
T51	76	3	235	9 1/4