Coupling Sleeves

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Coupling Sleeves Specification

Condition
New

Diameter
25mm to 51mm

Dimension (L*W*H)
Varies as per diameter

Product Type
Coupling Sleeves

Material
Alloy Steel

Computerized
No

Automatic Grade
Manual

CNC Or Not
No

Color
Black / Grey

Usage & Applications
Used for joining drill rods in mining, tunneling, and construction

About Coupling Sleeves

STANDARD COUPLING SLEEVE
THREAD TYPE	DIA	LENGTH	PRODUCT CODE
R32	44	140	781-4R-44-140-F
R25	35	150	781-2R-35-150-F
R28	44	150	781-3R-44-150-F
R32	44	150	781-4R-44-150-F
R38	55	170	781-5R-55-170-F
T38	55	170	781-AT-55-170-F
T38	55	190	781-AT-55-190-F
T45	63	210	781-BT-63-210-F
T51	77	235	781-CT-77-235-F

REDUCTION COUPLING SLEEVE
THREAD TYPE		DIA	LENGTH	PRODUCT CODE
F1	F2	DIA	LENGTH	PRODUCT CODE
R32	R28	44	165	781-43R-44-165-F
R38	R28	55	170	781-53R-55-170-F
T38	R32	55	195	781-A41-55-195-F
T51	T45	71	218	781-CBT-71-218-F

BIT ADAPTERS
THREAD TYPE		DIA	LENGTH	PRODUCT CODE
F	M	DIA	LENGTH	PRODUCT CODE
R28	R32	40	230	781-34R-40-230-4
R32	R38	45	225	781-45R-45-225-4
R38	R32	55	270	781-54R-55-270-4
T38	R32	57	270	781-A41-57-270-4
T45	T38	63	265	781-BAT-63-265-4
T51	T45	71	285	781-CBT-71-285-4

Robust Construction for Demanding Applications

Designed from premium alloy steel and precision-machined, our coupling sleeves withstand the challenging conditions typically found in mining, tunneling, and construction. The black oxide coating further enhances durability by protecting against corrosion, while precision tolerances ensure reliable and secure fits every time.

Versatile Compatibility and Easy Handling

Offered in multiple thread types and sizes, our coupling sleeves fit a diverse array of drilling rods, bits, and rigs. Their simple, manual assembly accommodates various operational needs, whether for repairs or new installations. The flexible packaging options, including wooden boxes and cartons, facilitate safe and easy logistics.

FAQs of Coupling Sleeves:

Q: How are these coupling sleeves typically used in drilling operations?

A: These coupling sleeves are primarily used to join drill rods together, forming longer, continuous drill strings. This facilitates deeper drilling in mining, construction, or tunneling operations. The precision-machined threads ensure secure connections, vital for efficient and safe drilling.

Q: What benefits does the black oxide coating provide?

A: Black oxide coating offers enhanced resistance to corrosion and surface wear, ensuring the coupling sleeves maintain their integrity even in challenging environments. This treatment also helps reduce friction during installation and removal.

Q: When should I choose a specific thread type like R32 or T51?

A: The thread type selection should be based on the drill rod and rig compatibility as well as the projects technical requirements. R-series and T-series threads are widely recognized in the industry and the appropriate size ensures optimal performance and secure joining of rods.

Q: Where are your coupling sleeves commonly applied?

A: Our coupling sleeves are widely used in mining, tunneling, and construction projects across the globe. They are specifically designed to integrate with various drilling rigs and tools used in these sectors, making them suitable for diverse field requirements.

Q: What is the process for ensuring precision and quality?

A: Each sleeve undergoes computerized precision machining to standard tolerances and is finished with quality checks before applying the black oxide coating. The final products are carefully inspected and securely packed for shipping to guarantee consistent performance.

Q: How do I determine the correct length and diameter for my application?

A: The correct dimensions depend on your drilling systems specifications. Typically, sleeves should match the drill rod parameters in both diameter (25mm to 51mm) and length (150mm to 500mm) for optimal connection and strength. Consult your rig and drill rod manufacturer specifications or our technical team for guidance.

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