Piston

Engineered as a durable aftermarket solution for drilling equipment, the Piston (OEM 550 937 81) is intended for maintenance of compatible Sandvik drill rigs, drifters and support systems. Its primary role is to translate system pressure into controlled linear movement for lifting, positioning, clamping or guiding functions. Listed compatibility includes DD311, DD311-40 and DD320-40.

During drilling operation, it must tolerate repeated extension and retraction, side loads, pressure cycles and field contamination. Construction based on precision-machined load-bearing surfaces and application-suitable sealing interfaces helps the part retain its functional geometry under repeated use. As a result, it supports smooth movement, predictable force transfer and accurate positioning of the connected mechanism.

This Delkom aftermarket option is intended for maintenance programs that require dependable replacement parts and clear OEM cross-referencing. Ask for 110 400 219 when checking stock, lead time or technical compatibility.