T38 190mm Carbide Tipped Straight Shank Rock Drilling Coupling
Sleeves
Application
The rock drilling tool is widely used for rock drilling, blasting
holes and other drill works in quarries, coal mines, road and dam
constructions and other similar projects.
Product Description
Couplings are also used to connect several rods to each other in
the same way. Couplings have a middle stop to prevent
over-threading on to the drill rod. We can manufactures
semi-bridge, full bridge coupling sleeves for the percussive tools.
Function: Coupling sleeve,Adapter Coupling
Type: Full-bridge,Semi-bridge, same/different diameter coupling
Specification and function of the coupling sleeve:
Full-Bridge Coupling sleeve
Eliminates the potential for the coupling to creep along the
threaded joints
Typically used in surface applications
Better uncoupling characteristics and tend to maintain tighter
joints
Less chance of jamming
Best suited to machines equipped with independent rotation.
Semi-Bridge Coupling sleeve
Small non-threaded bridge in the center
Steel cannot thread past bridge area
Smaller diameter steel end portions fit together in the centre
bridge area of the coupling
Semi-bridged couplings are most suited to high torque machines
Most rope and T threaded couplings are semi-bridged
Same diameter Coupling sleeve
Eliminates the potential for the coupling to creep along the
threaded joints
Typically used in surface applications
Better uncoupling characteristics and tend to maintain tighter
joints
Less chance of jamming
Best suited to machines equipped with independent rotation.
Why choose our coupling sleeves?
1. High strength chromium-molybdenum steel with high fatigue
strength and excellent wear resistance.
2. Stable and mature welding technology ensure high quality of bits
3. Accurate dimension of taper degree perfectly matches the button
bits
4. work reliable and very cost-effective
5. Rod bodies manufactured from high grade steel and processed
using state-of-the-art CNC machinery and heat treatment
6. Our rock drilling tools have been exported throughout the world.
Main market: Norway, USA,Canada,Brazil, Uganda,UAE, Philippines,
Thailand etc.
More Coupling Sleeves from KSQ Technologies:
| Length | Diameter | Thread | Weight | Part Number |
| mm | inch | mm | inch | kg |
| R25 Coupling Sleeve |
| 150 | 5 8/9 | 35 | 1 3/8 | R25 | 0.7 | 4148300429 |
| 155 | 6 1/9 | 44 | 1 3/4 | R25 | 1.0 | 4148300430 |
| 160 | 6 2/7 | 38 | 1 1/2 | R25 | 1.3 | 4148300431 |
| R28 Coupling Sleeve |
| 150 | 5 8/9 | 40 | 1 4/7 | R28 | 0.9 | 4148300483 |
| 170 | 6 5/7 | 55 | 2 1/6 | R28 | 2.0 | 4148300484 |
| R32 Coupling Sleeve |
| 150 | 5 8/9 | 44 | 1 3/4 | R32 | 1.0 | 4148300646 |
| 160 | 6 2/7 | 44 | 1 3/4 | R32 | 1.1 | 4148300647 |
| R38 Coupling Sleeve |
| 170 | 6 5/7 | 55 | 2 1/6 | R38 | 1.9 | 4148300703 |
| 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 |
| 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 |
| 225 | 8 6/7 | 76 | 3 | T51 | 4.8 | 4148300962 |
| 235 | 9 1/4 | 72 | 2 5/6 | T51 | 4.7 | 4148300963 |
| 235 | 9 1/4 | 77 | 3 | T51 | 4.9 | 4148300964 |
