T38 190mm Carbide Tipped Straight Shank Rock Drilling Coupling Sleeves

Application
The rock drilling tool is widely used for rock drilling, blasting holes and other drill works in quarries, coal mines, road and dam constructions and other similar projects.

Product Description

Couplings are also used to connect several rods to each other in the same way. Couplings have a middle stop to prevent over-threading on to the drill rod. We can manufactures semi-bridge, full bridge coupling sleeves for the percussive tools.

Function: Coupling sleeve,Adapter Coupling

Type: Full-bridge,Semi-bridge, same/different diameter coupling

Specification and function of the coupling sleeve:
Full-Bridge Coupling sleeve
Eliminates the potential for the coupling to creep along the threaded joints
Typically used in surface applications
Better uncoupling characteristics and tend to maintain tighter joints
Less chance of jamming
Best suited to machines equipped with independent rotation.

Semi-Bridge Coupling sleeve
Small non-threaded bridge in the center
Steel cannot thread past bridge area
Smaller diameter steel end portions fit together in the centre bridge area of the coupling
Semi-bridged couplings are most suited to high torque machines
Most rope and T threaded couplings are semi-bridged

Same diameter Coupling sleeve
Eliminates the potential for the coupling to creep along the threaded joints
Typically used in surface applications
Better uncoupling characteristics and tend to maintain tighter joints
Less chance of jamming
Best suited to machines equipped with independent rotation.

Why choose our coupling sleeves?
1. High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance.
2. Stable and mature welding technology ensure high quality of bits
3. Accurate dimension of taper degree perfectly matches the button bits
4. work reliable and very cost-effective
5. Rod bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
6. Our rock drilling tools have been exported throughout the world. Main market: Norway, USA,Canada,Brazil, Uganda,UAE, Philippines, Thailand etc.

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