


Sandvik / Tamrock
550 185 21bA
DX700
| Part Number | 550 185 21bA |
| Description | |
| Brand | Sandvik (Tamrock) |
| Assembly | 16 |
| Type | Drill Rig Spare Part |
Quick answer
550 185 21bA (also written 55018521bA, 550-185-21bA, or 550.185.21bA) is a Sandvik spare part used in the 16 assembly of the Sandvik DX700. Verified compatible with 11 Sandvik machine models including DX700, DX780, RANGER 500-2. 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: 55018521bA, 550 185 21bA, 550-185-21bA.
Compatible machines
11
OEM cross-reference
550 185 21bA
About Sandvik 550 185 21bA
An essential element of the 16 in the Sandvik DX700, this part is designed to meet the exacting standards required for underground and surface drilling equipment. Timely replacement prevents costly cascading failures in critical machine systems.
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.









