


Sandvik / Tamrock
550 215 36 O-RING
Rock Drill Spare Part
| Part Number | 550 215 36 |
| Description | O-RING |
| Brand | Sandvik (Tamrock) |
| Assembly | HYDRAULIC ROCK DRILL HEX 1 |
| Type | Rock Drill Spare Part |
Quick answer
550 215 36 (also written 55021536, 550-215-36, or 550.215.36) is a Sandvik o-ring spare part used in the HYDRAULIC ROCK DRILL HEX 1 assembly of the Sandvik DC122R. Verified compatible with 4 Sandvik machine models including COMMANDO 120 RF, COMMANDO 120R, DC122R. Used in 1 drifter configuration (HEX1). 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: 55021536, 550 215 36, 550-215-36.
Compatible machines
4
Drifter configurations
1
OEM cross-reference
550 215 36
About Sandvik 550 215 36 O-RING
A precision-molded sealing element for the Sandvik DC122R, this O-ring is used in the HYDRAULIC ROCK DRILL HEX 1 to create a reliable static or dynamic seal. Even minor O-ring deterioration can lead to system pressure loss, so scheduled replacement during routine maintenance is strongly recommended.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC122R (DC122R). 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
Why do O-rings fail in drilling equipment?
O-rings fail due to chemical degradation from hydraulic fluid, extreme temperature cycling, excessive pressure spikes, improper installation (twisting or pinching), and age-related hardening. Using the correct material compound for each application is critical.



