Sandvik / Tamrock
551 534 47e PISTON dirt ring
DD321-40
| Part Number | 551 534 47e |
| Description | PISTON dirt ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Cylinder Assembly |
| Type | Drill Rig Spare Part |
Quick answer
551 534 47e (also written 55153447e, 551-534-47e, or 551.534.47e) is a Sandvik piston dirt ring spare part used in the Cylinder Assembly assembly of the Sandvik DD321-40. Verified compatible with 24 Sandvik machine models including COMMANDO DC125R, COMMANDO DC300Ri, Commando DC130Ri. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55153447e, 551 534 47e, 551-534-47e.
Compatible machines
24
OEM cross-reference
551 534 47e
About Sandvik 551 534 47e PISTON dirt ring
A critical hydraulic component in the Sandvik DD321-40 percussion mechanism, this piston converts hydraulic pressure into the powerful impact force needed for rock breaking. Located in the Cylinder Assembly, worn pistons cause reduced penetration rate, increased energy consumption, and decreased overall drilling efficiency.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD321-40 (DD321-40). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
How does a worn piston affect drilling performance?
A worn piston reduces percussion energy transfer, decreasing penetration rate and increasing the time and energy required to drill each hole. This directly impacts productivity and operating costs in mining operations.
