PEERCHEER offers BTW NTW HTW landing ring for use with BTW NTW HTW core barrels. The landing ring sits in the upper-end of the outer tube and is retained by the mating coupling. As the inner tube assembly trips into the drill string, the landing shoulder on the Head Assembly impacts the landing ring setting the inner tube assembly into drilling position.TW series landing rings are available for application in standard DCDMA B N H size.
PEERCHEER’S landing rings are made made of high quality alloy steel that is specially heat treated for improved impact toughness and durability.