High-Quality Full Bridge Cross-Over Coupling Aadpters Sleeves Manufacturer, Factory

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High-Quality Full Bridge Cross-Over Coupling Aadpters Sleeves Manufacturer, Factory

Product Details

Customization:	Available
After-sales Service:	Repair or Replacement
Warranty:	6 Months

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Product Description

Basic Info.

Certification:ISO 9001:2000, ISO 9001:2008

Standard:GB

Surface Treatment:Spray-Paint

Manufacturing Process:Forging

Material:Carbon Steel / 23crni3mo

Thread:R25/R32/T38/T45/T51

Machine Type:Drilling Tools

Color:Red, Black, Yellow, White

Production Capacity:500,000 PCS/Month

Origin:China

HS Code:82071990

Packaging & Delivery

Package Size:30.00cm * 30.00cm * 30.00cm

Gross Weight:5.000kg

Package Type:Wooden Case or Carton

Product Description

Used in extension rod connection, its function is to transmit impact energy from the rock-drill piston, as well as rotation torque, into the drill string with no losses. It must withstand and transmit up to 6300 blows per minute from the piston continually, with great endurance and dependability.

Available Sizes: R25, R28, R32, R35, R38, T38, T45, T51
Crossover Sizes: R25-R28, R22-R25, R25-R32, R32-R38, R32-T38
Length Range: 140mm - 235mm
High Productivity: 5,000pcs per month for specific lines

Technical Specifications

COUPLINGS
THREAD	LENGTH (L)		DIAMETER (D)		Weight
THREAD	mm	In	mm	In	Kg
R22	140	5-1-2	30	1-3-16	0.45
R25	150	5-29/32	33	1-5-16	0.5
R25	150	5-29/32	35	1-3-8	0.52
R28	150	5-29/32	39	1-7/32	0.6
R32	150	5-29/32	42	1-21/32	0.9
R32	150	5-29/32	44	1-23/32	0.95
R38	170	6-11-16	55	2-5/32	1.75
T38	190	7-1-2	52	2-3/64	1.6
T38	190	7-1-2	55	2-5/32	1.95
T45	210	8-1-4	63	2-15/32	2.75
T45 HD	210	8-1-4	66	2-19/32	3.2
T51	225	8-7-8	72	2-13/16	3.85
T51 HD	225	8-7-8	76	3	4.68
COUPLINGS - Full Bridge
R25	200	7-7-8	35	1-3-8	0.8
R28	160	6-5-16	39	1-7/32	0.7
R32	200	7-7-8	44	1-23/32	1.5
R32	300	11-13/16	44	1-23/32	2.6
R38	210	8-1-4	55	2-5/32	2.6
T38	205	8-1-16	55	2-5/32	2.31
T45	230	9-1-16	63	2-15/32	3.5
T51	250	9-13/16	72	-	-

Frequently Asked Questions

1. What is the primary function of these couplings? The couplings are designed to connect extension rods and transmit impact energy from the rock-drill piston and rotation torque into the drill string with minimal energy loss.

2. What materials are used in the manufacturing process? Our couplings are manufactured using high-quality Carbon Steel and 23crni3mo, ensuring durability and the ability to withstand up to 6,300 blows per minute.

3. Which thread sizes do you offer? We provide a wide range of thread sizes including R22, R25, R28, R32, R38, T38, T45, and T51, as well as various crossover sizes for different equipment needs.

4. How are the products packaged for international delivery? To ensure safety during transport, couplings are typically packed in sturdy wooden cases or reinforced cartons, with a standard package size of 30x30x30cm.

5. What is the monthly production capacity for these drilling tools? Our facility has a large-scale production capacity of up to 500,000 pieces per month, allowing us to meet high-volume industrial demands efficiently.

6. What surface treatments are applied to the couplings? The products undergo a professional spray-paint surface treatment, available in colors such as red, black, yellow, and white, to provide corrosion resistance and easy identification.