Rock Drilling Tools: Factory-Sourced R32 MF MM Speed Extension Coupling Sleeves for Efficient Mining

Condition	New	Color	black or Customized
Applicable Industries	Construction works , Energy & Mining, Tunneling	Diameter	45MM-76MM
Video outgoing-inspection	Provided	Thread Type	R25,R28,R32,R38,T38,T45,T51
Machinery Test Report	Provided	Key words	Coupling Sleeve
Brand Name	Jcdrill	Application	Mining / Quarrying / Tunneling/Blasting
Type	Drill Sleeve	Length	150MM-235MM
Machine Type	Drilling Tool	Formation	Hard / Medium hard / Soft Rock Formation
Material	Carbide	Bridge type	Semi-bridge / Full-bridge
Processing Type	Forging	Raw Material	High quality alloy steel
Use	Mining

R32
Drifting and Tunneling
Drill Bit	Bit Dia.		NO x Button x Dia.			Flushing Hole		Weight
Drill Bit	mm	inch	Front	Gauge	Angle	Front	Side	（KG）
	spherical Buttons
	41	1 5/8	2x9	4x9	35°	1	1	0.6
	41	1 5/8	2x8	5x9	35°	1	1	0.7
	43	1 2/3	2x9	5x9	35°	1	2	0.7
	43	1 2/3	2x9	5x10	35°	1	1	0.7
	43	1 2/3	2x9	6x9	40°	2		0.7
	45	1 3/4	2x9	5x11	30°	1	1	0.8
	45	1 3/4	2x9	6x10	35°	2		0.8
	45	1 3/4	3x8	6x10	30°	3		0.8
	48	1 7/8	2x9	5x11	35°	1	1	0.9
	48	1 7/8	2x9	6x10	40°	2		0.9
	48	1 7/8	3x8	6x10	40°	3		0.9
	48	1 7/8	2x9	6x10	30°	3		0.9
	51	2	2x10	5x11	35°	1	1	1.0
	51	2	2x10	6x10	40°	2		1.0
	51	2	3x9	6x10	35°	3		1.0
	57	2 1/4	3x9	6x11	35°	3		1.3
	64	2 1/2	3x10,1x10	6x11	35°	3		1.6
	64	2 1/2	4x10	8x10	40°	2		1.6
	76	3	4x11	8x11	40°	2		2.6
	Parabolic Buttons
	41	1 5/8	2x8	5x9	40°	1	1	0.7
	43	1 2/3	2x9	5x9	40°	1	2	0.7
	43	1 2/3	2x9	5x10	40°	2		0.7
	43	1 2/3	2x9	6x9	40°	3	1	0.7
	45	1 3/4	2x9	5x11	30°	1	2	0.8
	45	1 3/4	2x9	6x10	40°	2	2	0.8
	45	1 3/4	3x8	6x10	40°	3	1	0.8
	48	1 7/8	2x9	5x11	35°	1	1	0.9
	48	1 7/8	2x9	6x10	40°	2		0.9
	48	1 7/8	3x8	6x10	40°	3		0.9
	51	2	2x10	6x10	40°	2		1
	51	2	3x9	6x10	40°	3	1	1
	54	2 1/8	3x9	6x10	40°	3	1	1
	57	2 1/4	3x9	6x11	35°	3		1.3
	64	2 1/2	4x10	8x10	40°	2		1.6
	41	1 5/8	16x10			1	4	0.7
	43	1 2/3	16x10			1	4	0.8
	45	1 3/4	16x10			1	4	0.9
	48	1 7/8	16x10			1	4	0.9
	51	2	16x10			1	4	1.2
	57	2 1/4	16x10			1	4	1.3
	64	2 1/2	18x13			1	4	1.5
Drill Roll				Length		Dimaeter		Weight
Drill Roll				mm	inch	mm	inch	（KG）
				2400	7'10''	32	1 1/4	15.3
				3090	10'11/2''	32	1 1/4	19.8
				3400	11'13/4''	32	1 1/4	21.7
				4000	13'13/8''	32	1 1/4	25.5
				4310	14'11/2''	32	1 1/4	27.5
				4920	16'11/2''	32	1 1/4	31.3
				5530	18'11/2''	32	1 1/4	35.2
				3090	10'11/2''	35	1 3/8	24
				3700	12'11/2''	35	1 3/8	28.7
				4000	13'13/8''	35	1 3/8	31.1
				4310	14'11/2''	35	1 3/8	33.4
				4920	16'11/2''	35	1 3/8	37.8
				5530	18'11/2''	35	1 3/8	42.9
				6100	20'	35	1 3/8	47.3
				3700	12'11/2''	35	1 3/8	29
				4310	14'11/2''	35	1 3/8	34.1
				4920	16'11/2''	35	1 3/8	38.8
				5530	18'11/2''	35	1 3/8	43.6
				6400	21'	35	1 3/8	50.3
Coupling			Length		Dimaeter		Thread	Weight
Coupling			mm	inch	mm	inch		（KG）
			170	6 3/4	55	2 5/32	R38	1.8
			190	7 1/2	55	2 5/32	T38	2
			150	6 1/8	45	1 3/4	R25-R32	1.1
			160	6 1/4	45	1 3/4	R25-R32	1.2
			160	6 1/4	45	1 3/4	R28-R32	1.2
			160	6 1/4	55	2 5/32	R32-R38	1.8
			170	6 3/4	55	2 5/32	R32-R38	2
			180	71/16	55	2 5/32	R32-R38	2.2
			210	8 1/4	55	2 5/32	R32-R38	2.8
			170	6 3/4	56	2 1/8	R32-T38	2.1
			180	71/16	56	2 1/8	R32-T38	2.2
			210	8 1/4	56	2 1/8	R32-T38	2.8
			190	7 1/2	63	2 33/64	R32-T45	3.2
Bench Drilling
Drill Bit	Bit Dia.		NO x Button x Dia.			Flushing Hole		Weight
Drill Bit	mm	inch	Front	Gauge	Angle	Front	Side	（KG）
	spherical Buttons
	48	1 7/8	2x9	5x11	35°	1	2	1
	48	1 7/8	3x8	6x10	40°	3		0.9
	51	1	2x10	5x11	35°	1	2	1
	51	2	3x9	6x10	35°	3		1
	57	2 1/4	3x9	6x11	35°	3		1.3
	57	2 1/4	3x10	6x11	35°	3		1.3
	64	2 1/2	3x11	6x12	30°	3		1.6
	64	2 1/2	3x10,1x10	6x11	35°	3		1.6
	64	2 1/2	4x10	8x10	40°	2		1.6
	70	3	4x11	8x11	40°	2		2.6
	76	3	4x11,1x11	8x11	35°	2		2.6
	Parabolic Buttons
	48	1 7/8	3x8	6x10	40°	3		0.9
	51	2	3x9	6x10	40°	3	1	1
	54	2 1/8	3x9	6x10	40°	3	1	1
	57	2 1/4	3x9	6x11	35°	3		1.3
	57	2 1/4	3x10	6x11	35°	3		1.3
	64	2 1/2	4x10	8x10	40°	2		1.6
	45	1 3/4	16x10			1	4	0.9
	48	1 7/8	16x10			1	4	0.9
	51	2	16x10			1	4	1.2
	57	2 1/4	16x10			1	4	1.3
	64	2 1/2	16x10			1	4	1.5
Drill Roll				Length		Dimaeter		Weight
Drill Roll				mm	inch	mm	inch	（KG）
				915	3'	32	1 1/4	5.4
				1000	3'33/8''	32	1 1/4	5.9
				1220	4'	32	1 1/4	7.2
				1830	6'	32	1 1/4	10.8
				2435	8'	32	1 1/4	14.3
				3050	10'	32	1 1/4	17.9
				3660	12'	32	1 1/4	21.5
				915	3'	32	1 1/4	6.2
				1000	4'	32	1 1/4	8
				1220	5'	32	1 1/4	9.8
				1830	6'	32	1 1/4	11.6
				2435	8'	32	1 1/4	15.1
				3050	10'	32	1 1/4	18.7
				3660	12'	32	1 1/4	22.3
				3050	10'	39	1 1/2	27
				3660	12'	39	1 1/2	32


				1220	4'	46	1 3/4	10
				1525	5'	46	1 3/4	12.5
				1830	6'	46	1 3/4	14.2
				3050	10'	46	1 3/4	25
Coupling				Length		Dimaeter		Weight
Coupling				mm	inch	mm	inch	（KG）
				150	6 1/8	44	1 3/4	1
				160	6 1/4	44	1 3/4	1.1

Minimum Order Quantity	N/A
Price
Packaging Details	Standard Export Delivery Package
Delivery Time	7days
Payment Terms	T/T
Supply Ability	Based on Detailed Order

To Chose the Right Products 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.