Sandvik / Tamrock
550 129 05 PISTON RING
AXERA T11 DATA-315 C
| Part Number | 550 129 05 |
| Description | PISTON RING |
| Brand | Sandvik (Tamrock) |
| Assembly | JACK |
| Type | Drill Rig Spare Part |
Quick answer
550 129 05 (also written 55012905, 550-129-05, or 550.129.05) is a Sandvik piston ring spare part used in the JACK assembly of the Sandvik DT921i. Verified compatible with 4 Sandvik machine models including AXERA T11 DATA-315 C, AXERA T12 DATA-315 C, DT1330i. 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: 55012905, 550 129 05, 550-129-05.
Compatible machines
4
OEM cross-reference
550 129 05
About Sandvik 550 129 05 PISTON RING
This piston is a key element of the JACK in the Sandvik DT921i. 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 DT921i (DT921i). 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.