T38 T45 T51 Rock Drilling Coupling Sleeves 35-77mm Diameter for Mining Equipment
Price:
Negotiate
MOQ:
5 pcs
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Product Overview
High-performance coupling sleeves designed for rock drilling rigs with T38, T45, T51, and GT60 thread specifications. These precision-engineered components ensure efficient energy transmission in demanding mining and drilling applications.
Key Features & Benefits
Superior Wear Resistance
Manufactured from high-strength chromium-molybdenum alloy steel for exceptional durability and extended service life.
Precision Engineering
CNC milling and proprietary heat treatment processes ensure dimensional accuracy and optimal performance.
Middle Stop Design
Prevents over-threading onto drill rods, maintaining proper connection integrity and energy transfer efficiency.
Technical Specifications
Available Thread Types
R25, R28, R32, R38, T38, T45, T51
Standard Dimensions
Diameter: 35mm-77mm (1 3/8" to 3")
Length: 150mm-235mm (6" to 9 1/4")
Detailed Specifications Table
| Model | Length (mm/inch) | Diameter (mm/inch) | Thread | Weight (kg) | Part Number |
|---|---|---|---|---|---|
| R25 Coupling Sleeve | 150/6 | 35/1 3/8 | R25 | 0.7 | 4148300429 |
| R25 Coupling Sleeve | 155/6 1/9 | 44/1 3/4 | R25 | 1.0 | 4148300430 |
| R25 Coupling Sleeve | 160/6 2/7 | 38/1 1/2 | R25 | 1.3 | 4148300431 |
| R28 Coupling Sleeve | 150/6 | 40/1 4/7 | R28 | 0.9 | 4148300483 |
| R28 Coupling Sleeve | 170/6 2/3 | 55/2 1/6 | R28 | 2.0 | 4148300484 |
| R32 Coupling Sleeve | 150/6 | 44/1 3/4 | R32 | 1.0 | 4148300646 |
| R32 Coupling Sleeve | 160/6 2/7 | 44/1 3/4 | R32 | 1.1 | 4148300647 |
| R38 Coupling Sleeve | 170/6 2/3 | 55/2 1/6 | R38 | 1.9 | 4148300703 |
| R38 Coupling Sleeve | 190/7 1/2 | 55/2 1/6 | R38 | 2.1 | 4148300704 |
| T38 Coupling Sleeve | 190/7 1/2 | 55/2 1/6 | T38 | 2.1 | 4148300803 |
| T45 Coupling Sleeve | 210/8 1/4 | 63/2 1/2 | T45 | 3.0 | 4148300881 |
| T45 Coupling Sleeve | 210/8 1/4 | 66/2 3/5 | T45 | 3.3 | 4148300882 |
| T51 Coupling Sleeve | 225/8 6/7 | 71/2 4/5 | T51 | 4.6 | 4148300961 |
| T51 Coupling Sleeve | 225/8 6/7 | 76/3 | T51 | 4.8 | 4148300962 |
| T51 Coupling Sleeve | 235/9 1/4 | 72/2 5/6 | T51 | 4.7 | 4148300963 |
| T51 Coupling Sleeve | 235/9 1/4 | 77/3 | T51 | 4.9 | 4148300964 |
Application Areas
- R25, R28, R32, R38 Threads: Ideal for drifting and tunneling operations
- T38, T45, T51 Threads: Optimized for benching and long hole drilling
Manufacturing Excellence
Produced by Roschen Group Limited, an ISO9001:2008 and ISO14001:2004 certified manufacturer with extensive experience in rock drilling tools and pneumatic equipment.
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Get in Touch
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Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael