


Sandvik / Tamrock
550 884 53 Sign
DD321-40
| Part Number | 550 884 53 |
| Description | Sign |
| Brand | Sandvik (Tamrock) |
| Assembly | STEP BOX |
| Type | Drill Rig Spare Part |
Quick answer
550 884 53 (also written 55088453, 550-884-53, or 550.884.53) is a Sandvik sign spare part used in the STEP BOX assembly of the Sandvik DX700. Verified compatible with 8 Sandvik machine models including DD321-40, DD321-40C, DD421-60C. 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: 55088453, 550 884 53, 550-884-53.
Compatible machines
8
OEM cross-reference
550 884 53
About Sandvik 550 884 53 Sign
This component is part of the STEP BOX 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.









