TRB Overburden Drilling System
(In stock)
| Product Name | TRB Overburden Drilling System |
| Model Number | TRB90 to TRB1160 (multiple sizes available; custom sizes upon request) |
| Brand | TOPDRILL |
| Category | Overburden Drilling System – Simultaneous casing and drilling |
| Country of Origin | South Korea |
| Material | High-strength alloy steel with wear-resistant casing wings. |
| Applications | Used for efficient drilling through soft or unstable overburden by advancing casing and drilling simultaneously—ideal for water wells, geothermal drilling, and civil construction in loose formations. |
TOPDRILL’s TRB System features retractable wings that expand during drilling and retract via reverse rotation, enabling economical, simultaneous drilling and casing advancement. It supports casing sizes from 114 mm to 1219 mm OD (models TRB90–TRB1160), with casing ID and wall thickness optimized per model. Wing counts range from 2 to 6, depending on diameter. Compatible with TG DTH hammers from TG35 to TG800 series. Ideal for minimizing drill time and stabilizing boreholes in loose soils, water-wells, and geothermal applications
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