High Strength Threaded Coupling Sleeve Alloy Steel Length 150mm - 235mm

Coupling sleeve also called Coupling,when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod,ensuring the ends touch for efficient energy transmission.

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

Suitable for top hammers and drifter from Atlas Copco, Tamrock,Furukawa,Ingersoll Rand,etc.

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.

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.

Thread coupling sleeve, R25 R28 R32 R38 T38 T45 T51 coupling sleeve

Crossover coupling, full bridge coupling, semi- bridge coupling

Manguito de acoplamiento de rosca, manguito de acoplamiento R25 R28 R32 R38 T38 T45 T51
Acoplamiento Crossover, acoplamiento de puente completo

Paremeter of the coupling sleeve:

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.

Packing details : Wooden case and steel bundle.

We specialize in Rock drilling tools, including rock drill bits,tapered drill tools,threaded drill tools,Down the hole drilling tools ( DTH ), which are widely used in mining , quarrying , well drilling and construction . All these products are compatible with other world world leading brands such as Atlas Copco , Sandvik , Mitsubishi and Boart Longyear.

Test is the best way to find suitable rock drilling tools, for samples please Email drillbit@qq.com

SUVEC Rock Drilling Tools Provides Quality Rock Drilling Tools Made in China.

SUVEC Rock Drilling Tools specalizes in providing the suitable quality of rock breaking tools properly with reasonable prices for our clients. And what we are always trying to do is making clients happy with our rock drilling tools and wholehearted service and what’s more is that we believe in is making a little bit effort every day and a giant step will come sooner or later. Our service is 24hours, 7 days a week, 12 months per year as long as you need us. All your inquiry will be highly appreciated,and all your emails will be replied in no more than one day as long as we see it. 

SUVEC Rock Drilling Tools have factories in Hubei,Henan,Liaoning and Shandong Province and sources for different quality and prices, most of our factories have more than 20 years experience in their professional rock drilling tool production fields. We know the buyers want to spend as least time as possible to find properly qualified products and suppliers without paying too much cost and time coming to China to visit every factories one by one. We know it is a giant big job and time wasting to search day after day from google and B2B websites like Alibaba. So most of our new customers are recommended by our old clients who have made deals with us before.