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Two-wing belling bit, tricone
Two-wing belling bit with roller-cone (tricone) bits on the wings, for moderately to weakly weathered rock. KD600–KD2000, 7 catalogue sizes.
| Size | DiameterD · mm | Reamed diameterD1 · mm | Height, closedH1 · mm | Height, openedH2 · mm |
|---|---|---|---|---|
| KD600 | 560 | 1200 | 1900 | 1550 |
| KD800 | 760 | 1600 | 2160 | 1700 |
| KD1000 | 960 | 2000 | 2650 | 1950 |
| KD1200 | 1160 | 2400 | 3050 | 2050 |
| KD1500 | 1460 | 3000 | 3600 | 2600 |
| KD1800 | 1760 | 3600 | 3900 | 2650 |
| KD2000 | 1960 | 4000 | 4200 | 2850 |
7 catalogue sizes from KD600 to KD2000. Catalogue values; dimensions in mm. Other sizes on request.
Overview
This version carries roller-cone bits along both wings in place of plain teeth. The catalogue rates it for moderately to weakly weathered rock.
It runs closed at body diameter D and opens to the reamed diameter D1. The table gives both heights, closed (H1) and opened (H2), and the dimensions match the two-wing rock bit, from KD600 (560 mm body, 1200 mm bell) to KD2000 (1960 mm body, 4000 mm bell).
Applications
How to order
To order, give us the pile diameter, the bell diameter, the rock type and strength at the toe and your rig model with its Kelly connection. We reply by email within one business day.