


Sandvik / Tamrock
551 878 30a Relay
DX700
Available — Request Quote| Part Number | 551 878 30a |
| Description | Relay |
| Brand | Sandvik (Tamrock) |
| Assembly | Module, Rear |
| Type | Drill Rig Spare Part |
Quick answer
551 878 30a (also written 55187830a or 551-878-30a) is a Sandvik relay spare part used in the Module, Rear assembly of the Sandvik DX700. Verified compatible with 20 Sandvik machine models including DD321-40, DD321-40C, 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: 55187830a, 551 878 30a, 551-878-30a.
Compatible machines
20
OEM cross-reference
551 878 30a
About Sandvik 551 878 30a Relay
This component is part of the Module, Rear assembly in the Sandvik DX700. Maintaining OEM-compatible replacement parts ensures reliable machine performance and minimizes downtime in demanding mining and drilling operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik DX700 (DX700). 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.