Concentric Casing System with Wings

Overburden drilling system Concentric Casing System with Wings - Elevating Drilling Efficiency

Our concentric casing system with wings boasts a unique design that enables downward pressure and clockwise rotation at the start of rock chipping. This initiates the rotation of the winged expansion block along the rotational axis, facilitating casing advancement while expanding the hole. This cutting-edge system ensures synchronized drilling and casing operations, making it an ideal choice for geothermal wells, water wells, small-to-medium-sized grouting holes, micro-piling, and more.

Specifications

Model	Outer diameter (mm)	Inner diameter (mm)	Reamed diameter (mm)	Inner diameter of casing shoe (mm)	Number of wing	Hammer type	Drill pipe (mm)
WOD168	168	148	180	138	2	5 inch hammer	76/89
WOD178	178	158	190	148	2	5 inch hammer	76/89
WOD183	183	163	195	152	2	5 inch hammer	76/89
WOD194	194	174	210	160	2	6 inch hammer	89/114
WOD219	219	199	237	187	2	6 inch hammer	89/114
WOD245	245	225	265	211	2	8 inch hammer	114
WOD273	273	253	308	236	2	8 inch hammer	114/127
WOD323	323	303	360	282	3	10 inch hammer	114/127
WOD406	406	387	432	365	3	12 inch hammer	127/140
WOD508	508	483	530	460	3	14 inch hammer	127/140
WOD610	610	584	635	560	3	18 inch hammer	140

Features Enhanced Durability: We employ strengthened surface treatment on our components, ensuring prolonged tool lifespan and exceptional wear resistance. Easy Maintenance: Our product is designed for effortless disassembly, allowing convenient replacement of the winged expansion blocks. Rapid and Stable Drilling: The drilling speed of our system is accelerated, while maintaining stability and minimizing the risk of jamming.