Sandvik / Tamrock
550 591 77 PISTON PUMP
DT820
| Part Number | 550 591 77 |
| Description | PISTON PUMP |
| Brand | Sandvik (Tamrock) |
| Assembly | POWER PACK ASSEMBLY |
| Type | Drill Rig Spare Part |
Quick answer
550 591 77 (also written 55059177, 550-591-77, or 550.591.77) is a Sandvik piston pump spare part used in the POWER PACK ASSEMBLY assembly of the Sandvik DT820. Verified compatible with 3 Sandvik machine models including AXERA 8-290, DT820, DT820-SC. 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: 55059177, 550 591 77, 550-591-77.
Compatible machines
3
OEM cross-reference
550 591 77
About Sandvik 550 591 77 PISTON PUMP
This piston is a key element of the POWER PACK ASSEMBLY in the Sandvik DT820. 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 DT820 (DT820). 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.
