XMK:Non-sealed Roller Air Bearing Mining Roller Cone Bits
The XMK series bits are non-sealed Roller Bearing bits that are cooled and cleaned by air with fast drilling speed and good strength which are used for the development of open-pit coalmines,iron mines,and non-ferrous metal mines
2.The air-cooling system can improve the air circulation conditions in the bearing cavity andreduce the temperature inside the bearing cavity.
3.The cutting structure adopts circular arc hard alloy ball teeth to improve compressive strengthand wear resistance and reduce tooth breakage rate.
4.The palm back is equipped with hard alloy teeth and welded with wear-resistant alloy toreduce wear on the palm back and extend bearing life.
| Drill Bit Size | Drill Bit Type Selection | |
| IN | Size | |
| 5 7/8 | 149.23 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 6 1/4 | 158.75 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 6 3/4 | 171.45 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 7 7/8 | 200 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 8 1/2 | 215.9 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 8 3/4 | 222.25 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 9 | 228.6 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 9 7/8 | 250.825 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 11 | 279.4 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 12 1/4 | 311.15 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| 13 3/4 | 349.25 | XMK532,XMK542,XMK612,XMK632,XMK642,XMK712,XMK722,XMK742,XMK832 |
| Note: The size and model of bits not shown in the table are designed according to user needs. | ||
1.In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services.
2.Use high quality export wooden crates, or you can customize them.
1. How do we ensure?
Answer:
(1)Always pre-production samples before mass production;
(2)Always final inspection before shipment;
(3)We choose advanced production technology and equipment, strictly control the whole production process and check the finished drill bits, and also make several design changes according to customer's feedback, and finally ensure excellent drilling results for our customers.
2. Is the product manufactured in accordance with the standard?
Answer:
YES. All our activities are certified by API, in terms of products and services, while proven production techniques ensure that the quality meets international requirements, and we carry out rigorous checks during production
3. Why should you buy from us instead of other suppliers?
Answer:
(1)Long history, exquisite technology
(2)Independent research and development, reliable quality Complete flexible production line
(3)Rich varieties, including tungsten carbide insert drills, steel tooth drills, hard disk openers, single cone drills, and tooth wheel cutters.
(4)Excellent pre-sale and after-sale service system
4. Are you a trading company or a manufacturer?
Answer:
We are trading company, but we can offer you competitive drill bits. We have supplied to many countries.
5. Time of delivery and time of shipment?
Answer:
Beijing airport takes 3-5 days for transportation. Even for small or urgent orders, we can ship you by air after receiving youragreement. Depending on the distance from China to your port, it usually takes about 25-30 days from China to Europe. To Western USA 20-25 days.
