Sandvik / Tamrock
550 408 78 Tie bolt
DC550
Available — Request Quote| Part Number | 550 408 78 |
| Description | Tie bolt |
| Brand | Sandvik (Tamrock) |
| Assembly | Directional valve |
| Type | Drill Rig Spare Part |
Quick answer
550 408 78 (also written 55040878 or 550-408-78) is a Sandvik tie bolt spare part used in the Directional valve assembly of the Sandvik DC550. Verified compatible with 1 Sandvik machine model including DC550. 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: 55040878, 550 408 78, 550-408-78.
Compatible machines
1
OEM cross-reference
550 408 78
About Sandvik 550 408 78 Tie bolt
This fastener is used in the Directional valve of the Sandvik DC550. High-strength fasteners in drilling equipment must withstand extreme vibration, cyclic loading, and environmental exposure. Using OEM-specification fasteners ensures proper clamping force and joint integrity in critical assemblies.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC550 (DC550). 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 use OEM-compatible parts for Sandvik drilling equipment?
OEM-compatible parts are manufactured to the same dimensional tolerances and material specifications as original components, ensuring proper fit, reliable performance, and maintaining the designed safety margins of the drilling machine.
