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DRILLING TOOLS · ROTARY DRILLING TOOLS
Double-wall core barrel
Core barrel with an inner and an outer wall, Φ1500 to Φ3000 mm, for backfill and strongly to moderately weathered ground.
| DiameterD · mm | Body diameterD1 · mm | Overall heightH · mm | Body heightH1 · mm | Outer barrel wall thicknessT1 · mm | Inner barrel wall thicknessT2 · mm | Lower wall thicknessT3 · mm | Bullet teethpcs |
|---|---|---|---|---|---|---|---|
| Φ1500 | 1420 | 2000 | 1200 | 16 | 16 | 40 | 28 |
| Φ1800 | 1720 | 2000 | 1200 | 20 | 20 | 40 | 28 |
| Φ2000 | 1920 | 2000 | 1200 | 20 | 20 | 40 | 28 |
| Φ2200 | 2120 | 2000 | 1200 | 20 | 20 | 40 | 28 |
| Φ2500 | 2420 | 2000 | 1200 | 20 | 20 | 40 | 28 |
| Φ3000 | 2920 | 2000 | 1200 | 20 | 20 | 40 | 28 |
6 catalogue sizes from Φ1500 to Φ3000 mm, each with body diameter, overall height and body height. Catalogue values; dimensions in mm unless stated. Other sizes on request.
Overview
The double wall stiffens the barrel at large diameters, where a single shell would be heavy for its rigidity.
Applications
How to order
To order, give us the diameter from the table, your rig make and model, and the Kelly bar connection. We reply by email within one business day.