Piston Rod Assy

Designed for demanding drilling service, the Piston Rod Assy (OEM reference 321 408 28) provides a replacement option for compatible Sandvik drilling applications. In the assembly, it translates system pressure into controlled linear movement for lifting, positioning, clamping or guiding functions. Examples from the listed machine range include AXERA 6-240, DD310-40 and DD311.

Reliable field performance depends on resistance to 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.

For workshops and fleet operators, this Delkom alternative offers a straightforward replacement route for the referenced Sandvik application. Delkom part number 110 400 224 can be used for ordering, cross-reference checks and volume pricing.