


Sandvik / Tamrock
550 677 30a Rubber sheet
DD421-60C
Available — Request Quote| Part Number | 550 677 30a |
| Description | Rubber sheet |
| Brand | Sandvik (Tamrock) |
| Assembly | Stair |
| Type | Drill Rig Spare Part |
Quick answer
550 677 30a (also written 55067730a or 550-677-30a) is a Sandvik rubber sheet spare part used in the Stair assembly of the Sandvik DX700. Verified compatible with 4 Sandvik machine models including DD421-60C, DT820, DT821. 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: 55067730a, 550 677 30a, 550-677-30a.
Compatible machines
4
OEM cross-reference
550 677 30a
About Sandvik 550 677 30a Rubber sheet
An essential element of the Stair 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.



