Sandvik / Tamrock
551 553 21 PISTON guide ring
LEOPARD DI650i
| Part Number | 551 553 21 |
| Description | PISTON guide ring |
| Brand | Sandvik (Tamrock) |
| Assembly | CYLINDER ASSEMBLY |
| Type | Drill Rig Spare Part |
Quick answer
551 553 21 (also written 55155321, 551-553-21, or 551.553.21) is a Sandvik piston guide ring spare part used in the CYLINDER ASSEMBLY assembly of the Sandvik LEOPARD DI650i. Verified compatible with 5 Sandvik machine models including DL431-7C, DL432i, DS511-C. 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: 55155321, 551 553 21, 551-553-21.
Compatible machines
5
OEM cross-reference
551 553 21
About Sandvik 551 553 21 PISTON guide ring
This piston is a key element of the CYLINDER ASSEMBLY in the Sandvik LEOPARD DI650i. It operates under extreme cyclic loading and high-pressure hydraulic conditions. Maintaining OEM-specification pistons ensures optimal percussion energy transfer and maximizes rock-breaking performance.
This is an OEM-compatible aftermarket replacement part for the Sandvik LEOPARD DI650i (LEOPARD DI650i). 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.
