Drill Rod Coupling Sleeve

Drill rod coupling sleeve

Coupling sleeves, other name is 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.

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

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 (i. E., S36IR rock drill)

Main Products:

1-12 inch middle-low/high air pressure DTH hammers & bits

Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling

Eccentric overburden drilling Equipment

Hole opener bit

Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60)

Extension Rod, M/F Rod, M/m Rod, Drift Rod,

Shank adapter, coupling sleeves and all kinds of adapters

Advantages:

Compared with the oversea brands, our advantages are bellowing:

A. Our products can match over 95% against the original products

B. Price are competitive against the famous brands and best quality against the small factory

Our presentation and strength as below:

Area of our factory: over 50,000SQM;

Numbers of our employees: over 700;

Numbers of our equipment &facilities: Over 1000 sets

Numbers of DTH Hammer production yearly: over 20,000 sets

Numbers of Drill bits production yearly: over 250,000 pcs

Annual turnover in USD: 60 Million

Market share(China): 40%-50%

Export market volume: 30 Million USD