Top Hammer Drilling Tool Coupling Sleeve R25 R28 R32 R38 T38 T45 T51 For Drilling
Product Description:
Threaded coupling sleeve are made of high quality of alloy steels and CNC machining guarantee our reliable and consistent quality control of coupling sleeves.Both semi-bridge and full-bridge coupling sleeves are manufactured by us in different sizes as below:Thread sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51;
Two catagories: Standard coupling sleeves, adapter(crossover) coupling sleeves;
Products Parameters:
| Coupling sleeve |
| Thread | Diameter | Length | Weight |
| A | B | mm | inch | mm | inch | Kg |
| R25 | R32 | 45 | 13/4 | 170 | 657/64 | 1.10 |
| R28 | R32 | 45 | 13/4 | 170 | 657/64 | 0.96 |
| R32 | R38 | 55 | 25/32 | 180 | 71/8 | 1.86 |
| R32 | T38 | 55 | 25/32 | 180 | 71/8 | 2.10 |
| R38 | T38 | 55 | 25/32 | 190 | 733/64 | 1.86 |
| R25 | 35 | 119/50 | 150 | 59/10 | 0.72 |
| R28 | 40 | 129/50 | 155 | 61/10 | 0.95 |
| R32 | 45 | 13/4 | 170 | 657/64 | 1.32 |
| R38 | 55 | 25/32 | 170 | 657/64 | 1.71 |
| T38 | 55 | 25/32 | 190 | 733/64 | 1.96 |
| T45 | 63 | 215/32 | 210 | 817/64 | 3.12 |
| T45 | 66 | 219/32 | 210 | 817/64 | 3.51 |
| T51 | 72 | 27/8 | 235 | 91/4 | 5.22 |
| T51 | 76 | 3 | 235 | 91/4 | 5.75 |
Coupling Components
 | Semi-Bridge Coupling Small non-thread bridge in the center Steel cannot thread past bridge area Smaller diameter steel end portions fit together in the center bridge area of the coupling Semi-bridge coupling are most suitable to high orque machines |
 | Full-Bridge Coupling 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 |
 | Adapter Coupling Used when changing from one thread type, or size, to another and are typically required only in special circumstances |
Packaging:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Company Information:
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision manufacturing, and dedication to the use of high-quality materials.
MIROC® Rock Drilling Tools are used by many drilling professionals related to mining, construction, tunneling, and quarrying projects around the globe.
MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Product Tags:
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Underground Mining Coupling Sleeve R25 R28 R32 R38 T38 T45 T51 Forging Processing Images
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