China Connecting Drilling Rod and Shank Adapter Bit Adapter Rock Drill Coupling Sleeves Manufacturers, Quotes

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China Connecting Drilling Rod and Shank Adapter Bit Adapter Rock Drill Coupling Sleeves Manufacturers, Quotes

Product Details

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

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Product Description

Basic Product Information

Model NO.

Coupling Sleeves

Certification

ISO 9001:2000, ISO 9001:2008

Standard

Surface Treatment

Spray-Paint

Manufacturing

Forging

Material

Carbon Steel / 23crni3mo

Thread

R25/R32/T38/T45/T51

Machine Type

Drilling Tools

Color

Red, Black, Yellow, White

Capacity

500,000 PCS/Month

HS Code

82071990

Origin

China

Packaging & Delivery

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Transport Package

Wooden Case / Carton

Product Description

Used in extension rod connection, our coupling sleeves are designed to transmit impact energy from the rock-drill piston and rotation torque into the drill string with minimal loss. These components are engineered to withstand up to 6,300 blows per minute continually, ensuring high endurance and dependability in rigorous drilling conditions.

Available Specifications:

Standard 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

THREAD	LENGTH (L)		DIAMETER (D)		Weight
THREAD	mm	In	mm	In	Kg
R22	140	2005-1-2	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	1-17/32	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
T51	225	8-7-8	72	2-13/16	3.85
COUPLINGS - Full Bridge
R32	200	7-7-8	44	1-23/32	1.5
T38	205	8-1-16	55	2-5/32	2.31
T51	250	9-13/16	72	2-13/16	5.3

Frequently Asked Questions

What is the primary function of these coupling sleeves?

They are used to connect extension rods, transmitting impact energy and rotation torque from the rock-drill piston to the drill string with maximum efficiency.

What materials are used for manufacturing?

The products are manufactured using high-quality Carbon Steel and 23crni3mo, ensuring durability through a professional forging process.

Which thread types are available for order?

We offer a wide range of threads including R22, R25, R28, R32, R38, T38, T45, and T51, along with various crossover adapter options.

What is the surface treatment of the couplings?

All coupling sleeves undergo a spray-paint surface treatment, available in colors like Red, Black, Yellow, and White for identification and corrosion resistance.

How are the products packaged for international shipping?

Standard packaging includes secure wooden cases or cartons to ensure the products remain undamaged during transit.

Can you provide full-bridge couplings?

Yes, we provide both standard and full-bridge couplings in various diameters and lengths to suit different drilling requirements.