Roller Bits Core Barrel Foundation Piling Heat Treatment Different Size
Core Barrels with Roller Bits are used to cut an annular ring in rock or concrete or reinforced concrete,they adopt the high-carbon steel and special drilling bits angle to keep the drilling strength and efficiency.
Drilling core barrel with roller bits drilling rock Core with hard facing strip for durable use life,they are used to cut a ring in rock or concrete, mostly to initiate the borehole.
Core barrel with roller bits are applicable for very strong rock formations with compressive strength greater than 100Mpa.
The most important advantage of a core barrel is that it assists to concentrate the torque and crowd force on a small ring of cutting teeth.
The diameter series of buckets are standard sizes,other lengths and diameters can be supplied on request.
| Model | Cutting Dia. | Shell HIT. | Shell THK. | Stiffening Ring THK. | Stiffening Ring HIT. | Teeth No. | Weight |
| Core Barrel with Bullet Teeth | φ600 | 1200 | 16 | 20 | 200 | 6 | 520 |
| φ800 | 1200 | 16 | 20 | 200 | 9 | 672 |
| φ900 | 1200 | 16 | 20 | 200 | 10 | 750 |
| φ1000 | 1200 | 16 | 20 | 200 | 11 | 847 |
| φ1200 | 1200 | 16 | 20 | 200 | 13 | 1010 |
| φ1500 | 1200 | 16 | 20 | 200 | 16 | 1370 |
| φ1600 | 1200 | 16 | 20 | 200 | 17 | 1493 |
| φ1800 | 1000 | 20 | 20 | 200 | 19 | 1841 |
| φ2000 | 800 | 20 | 20 | 200 | 21 | 1852 |
| φ2200 | 800 | 20 | 20 | 200 | 23 | 2329 |
| φ2500 | 800 | 20 | 20 | 200 | 27 | 2705 |
| φ2800 | 800 | 20 | 20 | 200 | 30 | 3200 |
| φ3000 | 800 | 20 | 20 | 200 | 32 | 3800 |
| Model | Size | Height | Bucket Thickness | Stiffening Ring Thickness | Stiffening Ring Thickness | No of teeth | Weight |
| Core Barrel with Roller Bits | φ600 | 1200 | 16 | 20 | 200 | 4 | 545 |
| φ700 | 1200 | 16 | 20 | 200 | 6 | 635 |
| φ800 | 1200 | 16 | 20 | 200 | 6 | 725 |
| φ900 | 1200 | 16 | 20 | 200 | 6 | 810 |
| φ1000 | 1200 | 16 | 20 | 200 | 8 | 900 |
| φ1100 | 1200 | 16 | 20 | 200 | 8 | 990 |
| φ1200 | 1200 | 16 | 20 | 200 | 9 | 1080 |
| φ1250 | 1200 | 16 | 20 | 200 | 9 | 1120 |
| φ1300 | 1200 | 16 | 20 | 200 | 9 | 1170 |
| φ1400 | 1200 | 16 | 20 | 200 | 10 | 1270 |
| φ1500 | 1200 | 16 | 20 | 200 | 10 | 1370 |
| φ1600 | 1200 | 16 | 20 | 200 | 10 | 1460 |
| φ1700 | 1000 | 20 | 20 | 200 | 11 | 1560 |
| φ1800 | 1000 | 20 | 20 | 200 | 12 | 1830 |
| φ1900 | 1000 | 20 | 20 | 200 | 12 | 1928 |
| φ2000 | 800 | 20 | 20 | 200 | 13 | 2050 |
| φ2200 | 800 | 20 | 20 | 200 | 14 | 2090 |
| φ2500 | 800 | 20 | 20 | 200 | 15 | 2420 |
| φ2800 | 800 | 20 | 20 | 200 | 16 | 3000 |
| φ3000 | 800 | 20 | 20 | 200 | 18 | 3500 |
1. All related accessories in the barrel are subjected to "heat treatment" process, which increase the strength and wear resistance of the product.
2. Cutting ring with roller bits and releases the internal stress of rock.
3. Drilling with the method of rolling and squeezing can increases the anti-wear ability of the barrel.
4. Small barrel facilitates the coring operation; large barrel performs stage breaking.
5. Applicable for very strong rock formations with compressive strength greater than 100Mpa.
Applicable for very strong rock formations with compressive strength greater than 100Mpa.
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Hydraulic Drilling Core Barrel , Roller Reamer Heat Treatment 600-3000mm Diameter Images
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