Sandvik / Tamrock
551 785 16 Housing, Seal
Rock Drill Spare Part
| Part Number | 551 785 16 |
| Description | Housing, Seal |
| Brand | Sandvik (Tamrock) |
| Assembly | Rock Drill |
| Type | Rock Drill Spare Part |
Quick answer
551 785 16 (also written 55178516, 551-785-16, or 551.785.16) is a Sandvik housing, seal spare part used in the Rock Drill assembly of the Sandvik DC122R. Verified compatible with 6 Sandvik machine models including COMMANDO DC125R, DB120, DC122R. Used in 2 drifter configurations (HEX1, HLX1). 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: 55178516, 551 785 16, 551-785-16.
Compatible machines
6
Drifter configurations
2
OEM cross-reference
551 785 16
About Sandvik 551 785 16 Housing, Seal
Critical for maintaining system pressure integrity in the Sandvik DC122R, this seal is part of the Rock Drill and provides a reliable barrier against fluid loss and external contamination. Regular seal replacement is a cost-effective maintenance practice that prevents major hydraulic system failures.
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
What happens when a hydraulic seal fails?
A failed hydraulic seal causes fluid leakage, leading to reduced system pressure, loss of machine force and speed, increased oil consumption, environmental contamination, and potential damage to pumps and valves operating without adequate fluid supply.
How can I identify worn seals in my drilling equipment?
Signs of seal wear include visible fluid leaks around cylinders and connections, reduced hydraulic system pressure, slower machine movements, increased oil consumption, and contaminated hydraulic fluid appearing milky or discolored.
