


Sandvik / Tamrock
552 146 12a Plate, Mounting
DD321-40
| Part Number | 552 146 12a |
| Description | Plate, Mounting |
| Brand | Sandvik (Tamrock) |
| Assembly | Instrumentation Assembly |
| Type | Drill Rig Spare Part |
Quick answer
552 146 12a (also written 55214612a, 552-146-12a, or 552.146.12a) is a Sandvik plate, mounting spare part used in the Instrumentation Assembly assembly of the Sandvik DD321-40. Verified compatible with 3 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: 55214612a, 552 146 12a, 552-146-12a.
Compatible machines
3
OEM cross-reference
552 146 12a
About Sandvik 552 146 12a Plate, Mounting
This plate component serves a structural or protective function in the Instrumentation Assembly of the Sandvik DD321-40. Plates in drilling equipment must resist wear, impact, and environmental corrosion while maintaining dimensional accuracy for proper assembly alignment.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD321-40 (DD321-40). 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.







