


Sandvik / Tamrock
551 534 46e Ring, PISTON
DI550
Available — Request Quote| Part Number | 551 534 46e |
| Description | Ring, PISTON |
| Brand | Sandvik (Tamrock) |
| Assembly | Hydraulic Cylinder, Double-acting |
| Type | Drill Rig Spare Part |
Quick answer
551 534 46e (also written 55153446e or 551-534-46e) is a Sandvik ring, piston spare part used in the Hydraulic Cylinder, Double-acting assembly of the Sandvik DT821-C. Verified compatible with 20 Sandvik machine models including COMMANDO DC300Ri, DD422i, DD422i-60C. 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: 55153446e, 551 534 46e, 551-534-46e.
Compatible machines
20
OEM cross-reference
551 534 46e
About Sandvik 551 534 46e Ring, PISTON
A critical hydraulic component in the Sandvik DT821-C percussion mechanism, this piston converts hydraulic pressure into the powerful impact force needed for rock breaking. Located in the Hydraulic Cylinder, Double-acting, 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 DT821-C (DT821-C). 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.

