Cylinder Tube

Engineered around the operating needs of surface and underground drilling equipment, the Cylinder Tube (OEM 551 609 94) is an aftermarket component for the rock drilling machine assembly. The assembly provides linear hydraulic force for positioning, clamping or support functions where repeatable stroke and controlled movement matter.

Controlled bore, rod and sealing interfaces help maintain smooth stroke behavior, pressure retention and resistance to side-load wear through repeated cycles. Cross-reference data lists applications including DD311 and DD311-40; final fit should be confirmed against the machine configuration or serial information. The alternative sourcing option is suited to maintenance programs focused on equipment availability, predictable servicing and competitive lifecycle cost.

Supported by Delkom’s experience in alternative rock-drill and drill-rig spare parts, this component is supplied for professional mining and tunneling maintenance worldwide. For availability, pricing and an application check, quote Delkom reference 110 400 217 and OEM reference 551 609 94.