R32 Coupling Sleeve for Top Hammer Rock Drilling
Product Overview
The R32 coupling sleeve is a precision-engineered threaded connector designed for top hammer rock drilling applications. It securely connects two R32 thread drill rods or shank adapters, ensuring efficient torque transmission and stable drilling performance in mining, quarrying, tunneling, and construction projects.
Manufactured from high-quality alloy steel with advanced heat treatment, our coupling sleeve delivers exceptional strength, wear resistance, and long service life under extreme drilling conditions.
Basic Specifications
| Product Name |
Thread Coupling Sleeve |
| Available Threads |
R25, R28, R32, R38, T38, T45, T51 |
| Diameter Range |
35mm-77mm (1 3/8" to 3") |
| Length Range |
150mm-235mm (6" to 9 1/4") |
| Material |
High Strength Alloy Steel Bar |
| Types Available |
Full-bridge, Semi-bridge, etc. |
| Colors |
Green, Gold, Black or Custom |
| Minimum Order Quantity |
No MOQ required for testing and trial orders |
Key Advantages
- Precision Thread - R32 female threads machined to strict tolerances for secure connection
- High Strength - Forged alloy steel construction for maximum torque transmission
- Wear Resistant - Advanced heat treatment for extended service life
- Easy Installation - Simple thread-on design for fast rod changes
- Cost Effective - Durable design reduces replacement frequency
Detailed Specifications
| Length |
Diameter |
Thread |
Weight |
Part Number |
| R25 Coupling Sleeve |
| 150mm (6") | 35mm (1 3/8") | R25 | 0.7kg | 4148300429 |
| 155mm (6 1/9") | 44mm (1 3/4") | R25 | 1.0kg | 4148300430 |
| 160mm (6 2/7") | 38mm (1 1/2") | R25 | 1.3kg | 4148300431 |
| R28 Coupling Sleeve |
| 150mm (6") | 40mm (1 4/7") | R28 | 0.9kg | 4148300483 |
| 170mm (6 2/3") | 55mm (2 1/6") | R28 | 2.0kg | 4148300484 |
| R32 Coupling Sleeve |
| 150mm (6") | 44mm (1 3/4") | R32 | 1.0kg | 4148300646 |
| 160mm (6 2/7") | 44mm (1 3/4") | R32 | 1.1kg | 4148300647 |
| R38 Coupling Sleeve |
| 170mm (6 2/3") | 55mm (2 1/6") | R38 | 1.9kg | 4148300703 |
| 190mm (7 1/2") | 55mm (2 1/6") | R38 | 2.1kg | 4148300704 |
| T38 Coupling Sleeve |
| 190mm (7 1/2") | 55mm (2 1/6") | T38 | 2.1kg | 4148300803 |
| T45 Coupling Sleeve |
| 210mm (8 1/4") | 63mm (2 1/2") | T45 | 3.0kg | 4148300881 |
| 210mm (8 1/4") | 66mm (2 3/5") | T45 | 3.3kg | 4148300882 |
| T51 Coupling Sleeve |
| 225mm (8 6/7") | 71mm (2 4/5") | T51 | 4.6kg | 4148300961 |
| 225mm (8 6/7") | 76mm (3") | T51 | 4.8kg | 4148300962 |
| 235mm (9 1/4") | 72mm (2 5/6") | T51 | 4.7kg | 4148300963 |
| 235mm (9 1/4") | 77mm (3") | T51 | 4.9kg | 4148300964 |
Applications
Top Hammer Drilling
Mining Exploration
Quarrying
Tunneling
Construction Drilling
Rock Bolting