


Sandvik / Tamrock
550 409 76a ESCALN
DD321-40
| Part Number | 550 409 76a |
| Description | ESCALN |
| Brand | Sandvik (Tamrock) |
| Assembly | Box, Step |
| Type | Drill Rig Spare Part |
Quick answer
550 409 76a (also written 55040976a, 550-409-76a, or 550.409.76a) is a Sandvik escaln spare part used in the Box, Step assembly of the Sandvik DX700. Verified compatible with 25 Sandvik machine models including DD320S, DD321-40, DD321-40C. 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: 55040976a, 550 409 76a, 550-409-76a.
Compatible machines
25
OEM cross-reference
550 409 76a
About Sandvik 550 409 76a ESCALN
An essential element of the Box, Step 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.









