Sandvik / Tamrock
550 009 87a Rotary Drilling Device
DD321-40
| Part Number | 550 009 87a |
| Description | Rotary Drilling Device |
| Brand | Sandvik (Tamrock) |
| Assembly | Seat Assembly |
| Type | Drill Rig Spare Part |
Quick answer
550 009 87a (also written 55000987a, 550-009-87a, or 550.009.87a) is a Sandvik rotary drilling device spare part used in the Seat Assembly assembly of the Sandvik DD321-40. Verified compatible with 16 Sandvik machine models including DD321-40, DD321-40C, DD421-60. 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: 55000987a, 550 009 87a, 550-009-87a.
Compatible machines
16
OEM cross-reference
550 009 87a
About Sandvik 550 009 87a Rotary Drilling Device
An essential element of the Seat Assembly in the Sandvik DD321-40, 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 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.
