Drilling Barrel Full Top Plate Head 130/140/150/160/200/250mm Core Barrel with Roller Bits

The main body of the barrel is Q355 manganese steel plate. The standard barrel wall thickness ranges from 20+40 mm, and the wear-resistant strips are thickened to 30 mm. Wear-resistant strips are fully welded all over the barrel body. The triangular area and square head on the top are reinforced with double-layer plates to resist torsion, compression and deformation.

Standard in-stock diameters are 800/900/1000/1200 mm, and full sizes from 600 mm to 3000mm can be customized. The barrel height can be adjusted from 1.0 m to 2.0 m according to your actual drilling depth requirements.

Standard kelly box sizes include 130/140/150/160/200/250 mm, and special sizes can be customized. It is perfectly compatible with all mainstream rotary drilling rig brands, including BG series,

Bullet Picks: Suitable for soft soil, weathered rock and cobble layers, featuring fast drilling penetration and low cost. Roller Bits: Designed for granite and high-strength hard rock formations with superior rock breaking performance.

The wear-resistant strips are made of high-chromium wear-resistant steel plates, fixed by full penetration welding to prevent detachment under high-temperature working conditions. Extra-thick wear layers can be added for abrasive sand and gravel ground.