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R32 crossover coupling

Product name:170mm R32-T38 Crosseover coupling
Dia.:56mm
Thread: R32
Length:170mm
Weight:2.1kg
Material:23CrNi3Mo

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Coupling

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Product Details

Description

Coupling sleeves are available with both half-bridge and full-bridge types, as well as adapter couplings.
Semi-bridge coupling, by far is the most popular, has a small non-threaded bridge in the centre. The drill rod cannot thread past the centre of the couplings, and the smaller diameter rods portions butt together in the centre bridge area of the coupling. Semi-bridge couplings are most suited to high torque machines. Most rope (R) and Trapezoidal (T) threaded couplings are semi-bridged.
Full bridge coupling has a great advantage that it positively eliminates the potential for the coupling to creep along the threaded joints. These couplings, are typically used in a Trapezoidal thread, in surface drilling application, have better uncoupling characteristics and tend to maintain tighter joints. Full-bridge couplings have less chance of jamming and are best suited to machines equipped with independent rotation.
Adapter couplings are used when changing from one thread type, or size, to another and are typically required only in special circumstances.

Performance

High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance

Application

R32 thread system Widely used in drifting and tunneling

Details Form

R32 Crosseover coupling
Coupling	length		Out diameter		thread	Weight （kg）	HENGLONG P/N
Coupling	mm	foot	mm	inch	thread	Weight （kg）	HENGLONG P/N
Coupling sleeves	170	6 3/4	55	2 5/32	R38	1.8	31-R38-55-170-23
Coupling sleeves	190	7 1/2	55	2 5/32	T38	2.0	31-T38-55-190-23
Coupling sleeves of different diameter	150	6 1/8	45	1 3/4	R25-R32	1.1	33-R25/R32-45-150-23
	160	6 1/4	45	1 3/4	R25-R32	1.2	33-R25/R32-45-160-23
	160	6 1/4	45	1 3/4	R28-R32	1.2	33-R28/R32-45-160-23
	160	6 1/4	55	2 5/32	R32-R38	1.8	33-R32/R38-55-160-23
	170	6 3/4	55	2 5/32	R32-R38	2.0	33-R32/R38-55-170-23
	180	7 1/16	55	2 5/32	R32-R38	2.2	33-R32/R38-55-180-23
	210	8 1/4	55	2 5/32	R32-R38	2.8	33-R32/R38-55-210-23
	170	6 3/4	56	2 1/8	R32-T38	2.1	33-R32/T38-56-170-23
	180	7 1/16	56	2 1/8	R32-T38	2.2	33-R32/T38-56-180-23
	210	8 1/4	56	2 1/8	R32-T38	2.8	33-R32/T38-56-210-23
	190	7 1/2	63	2 33/64	R32-T45	3.2	33-R32/T45-63-190-23

HENGLONG workshop and Process of manufacturing

Packing and shipping

Factory

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QUALITY INSPECTION PROCESS

Product quality is one of the core links in the development and growth of Yanggu Henglong Engineering Co., Ltd. Our company has strict internal and external inspection processes to ensure the quality of our products. Our inspection process for our products is as follows.

Coupling