Sandvik / Tamrock
552 069 78 Seal, Shaft
DI550
Available — Request Quote| Part Number | 552 069 78 |
| Description | Seal, Shaft |
| Brand | Sandvik (Tamrock) |
| Assembly | Rotation head |
| Type | Drill Rig Spare Part |
Quick answer
552 069 78 (also written 55206978 or 552-069-78) is a Sandvik seal, shaft spare part used in the Rotation head assembly of the Sandvik DI550. Verified compatible with 1 Sandvik machine model including DI550. 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: 55206978, 552 069 78, 552-069-78.
Compatible machines
1
OEM cross-reference
552 069 78
About Sandvik 552 069 78 Seal, Shaft
This sealing component prevents hydraulic fluid leakage and contamination ingress in the Sandvik DI550 hydraulic system. Located within the Rotation head, compromised seals lead to reduced drilling pressure, increased oil consumption, and potential damage to hydraulic pumps and valves.
This is an OEM-compatible aftermarket replacement part for the Sandvik DI550 (DI550). 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.