SOLLROC symmetric system are made of high quality alloy steel and carbide with strict heat treatment. It is widely used and proven in many work sites for foundation, piling, water well drilling, etc. We have full range of sizes and various types for drilling in all ground conditions.
|retrieved or permenant:|
Symmetric Drilling System is designed to drill and case a hole simultaneously through unstable ground conditions. The pilot bit incorporated with a sacrificial ring or reusable ring makes a full face head design which significantly improves the penetration rate and hole straightness of drilling. The internal flushing grooves together with the built-in casing shoes gives a good seal to the bottom of the drilling hole, and thus minimising the disruption of the surrounding of the drill hole.
SOLLROC symmetric system features:
Straight Holes and fast Penetration Rate.
Less Torque in all ground conditions.
Easy System to lock and Unlock Ring.
Drilling at any angle required.
Wear-resistance and longevity.
|Casing OD||Reamed diameter||Inner diameter of casing shoe||Max. Inner dia. Of casing shoe that pilot bit can pass through||Hammer||Part number|
Permanent / retrievable type are available.
Order guide: Outer Dia.of casing pipe (A) + Wall thickness + reamed Dia. (C) + Inner Dia. Of casing shoe (D) + hammer type