Customizable Core Barrel for Hard Rock Drilling in Pile Foundation

The Unimate core barrels are available in three configurations: core barrel with bullet teeth, with roller bits, with cross cutter.

Unimate continually strives to provide the best and effective tools in the field. The Unimate
Core Barrel assemblies are designed to be used in hard rock drilling conditions.

1. Cutting ring with staggered arrangement of round shank chisels.

2. Chisel holders are welded to the base body. The round shank chisels can be easily replaced.

3. Kelly box 130mm, 150mm, 200mm (optional).

4. Barrel adopts spiral wear-resistant strips, anti-attrition, prolong service life.

5. Adopted big alloy teeth and encrypted arrangements, high drilling efficiency.

6. Heightening design, high construction efficiency, efficiently reduce construction cost.

Core Barrel with Bullet Teeth

Core Barrel with Roller Bits

Cross Cutter Core Barrel

1. Core barrel with bullet teeth is used for cutting an annular ring in rock or concrete (also reinforced concrete).
2. Core barrel with roller bits is used in very strong rock formations (compressive strength> 100 Mpa).
3. Cross cutter core barrel is mainly used to break rock cores which remain in the borehole after using a core barrel, also suitable for drilling hard, jointed rock(< 1 00Mpa) and for penetrating through layers containing boulders.

1. High quality raw materials and high steel strength.
2. Simple operation.
3. High wear resistance.
4. High drilling efficiency.
5. High hardness.
6. Good roundness of the cylinder.
7. Long using life.