T51 Crossover Coupling Sleeve for Rock Drilling and Quarrying

• Customization: Available
• After-sales Service: Yes
• Warranty: One Year
• Model NO.: T38/T45/T51
• Certification: CE, ISO 9001:2000, ISO 9001:2008
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Alloy Steel
• Application: Mining, Quarrying, Construction
• Carbides Number: Yk05
• Painting Colour: Gold or Other Colours Are Acceptable
• Customized Design: Acceptable
• Transport Package: Carton and Plywoodcase
• Specification: 43mm-152mm or bigger
• Trademark: TEAMWHOLE
• Origin: China
• HS Code: 82071990
• Production Capacity: 500000 Pieces One Year

Product Description

Product Description

-Name: R32/R38/T38/T45/T51 Drill Pipe Coupling/Mining Equipment
-Product number: R32/R38/T38/T45/T51
-Brand name: TEAMWHOLE
-Thread type: R32/R38/T38/T45/T51
-Material: Premium 42CrMo alloy steel and carbide
-Packaging: Durable wooden box
-Delivery time: Rapid 7-15 days
-Certification: ISO9001 Certified
-Origin: Hunan, China (Mainland)

The coupling sleeve is a critical component of the top hammer drill string. There are 3 types of coupling components: Full Bridge, Semi-Bridge, Cross over adapter, and Crossover coupling.

Full-Bridge Coupling Sleeves

• Prevents the coupling from creeping along the threaded joints, ensuring stability
• Ideally used in surface drilling applications
• Exhibits superior uncoupling characteristics, maintaining tighter joints under pressure
• Reduces the likelihood of jamming, ensuring smoother operations
• Perfectly suited for machines equipped with independent rotation mechanisms

No.	Thread A	Thread B	Outer diameter(mm)	Length(mm)	Product code
1	R32	R32	45	150	Q3-R324R32-15001
2	R32	T38	55	170,190	Q3-R325T38-170/19001
3	R38	R38	55	170	Q3-R385R38-17001
4	T38	R38	55	190	Q3-T385R38-19001
5	T38	T38	55	190	Q3-T385T38-19001
6	T38	T45	66	210	Q3-T386T45-21001
7	T45	T45	66	210	Q3-T456T45-21001
8	T45	R38	66	207	Q3-T456R38-20701
9	T51	T51	72	230	Q3-T517T51-23001