Bohrrohre Casings

Double-walled casings

Double-walled casings can be used universally, as they are designed especially for transmitting high rotational and vertical forces as created by the rotary drives and oscillators. The use of double-walled casings ensures a flush drill string. Single-walled casings can be used for applications where weight reduction is important

Single-walled casings

Short Version Cutting ring can be equipped with BR or BH type teeth (other teeth types on request Male joint, wear ring and cutting ring are machine faced. Cutting ring welded directly to male joint.

Double-walled casings Technical Data

Casing Shoes

Long Version Cutting ring can be equipped with BR or BH type teeth (other types on request Male joint, wear ring and cutting ring are machine faced. Centering groove on wear ring and tack welding of cutting ring to wear ring allow easy replacement of cutting ring on site.

Short Version Cutting ring can be equipped with BR or BH type teeth (other teeth types on request Male joint, wear ring and cutting ring are machine faced. Cutting ring welded directly to male joint.

Technical Data