Piston Rod

For fleets that require dependable alternative spare parts, the Piston Rod (OEM 551 931 56) is intended for service in the feed and drill-carriage mechanism under demanding drilling conditions. Its role is to create dependable linear motion from hydraulic pressure while maintaining alignment through repeated extension and retraction cycles.

For overhaul and repair planning, the component provides a competitive alternative to original-supply-only purchasing. This reference is catalogued for equipment such as DD311 and DD321-40; confirm the exact application before placing the order. The working surfaces are designed around repeated pressure loading, with dimensional control supporting stable guidance and sealing performance.

Delkom combines rock-drilling spare-parts expertise with broad export capability for mining and tunneling customers. For purchasing support, bulk requirements or fitment confirmation, use Delkom reference 110 800 485 and OEM reference 551 931 56.