Product info

Solitary ring system for down the hole hammer

DTH SR products are economical and cost-effective to use when the ground is homogenous with few small boulders. With the same pilot you can install piles and interlocked Pipe-Pile-Wall piles just by using ring bits with different outside diameters. Robit® Solitary Ring Casing Systems are available for all the common Down The Hole hammers and can be used for all applications where the casing is left in the ground.

Casing OD (mm)273
Casing OD (in.)10 ¾
Casing Max Wall (mm)12,7
Casing Max Wall (in.)0.500
Ring bit ID (mm)180
Ring bit ID (in.)7.087
Ring bit OD (mm)287
Ring bit OD (in.)11.299
Pilot bit OD (mm)244,6
Pilot bit OD (in.)9.630
Hammer8”
Product number03-000-273-4157

Compatible products

DTH-RoX SR 273/12,7
Pilot, Down the Hole Hammer, Solitary ring
DTH-RoX SR 273/12,7
Ring, Down the Hole Hammer, Solitary ring