Sandvik / Tamrock
770 210 30 O-Ring
DL321-7
Available — Request Quote| Part Number | 770 210 30 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Brake |
| Type | Drill Rig Spare Part |
Quick answer
770 210 30 (also written 77021030 or 770-210-30) is a Sandvik o-ring spare part used in the Brake assembly of the Sandvik DL321-7. Verified compatible with 1 Sandvik machine model including DL321-7. 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: 77021030, 770 210 30, 770-210-30.
Compatible machines
1
OEM cross-reference
770 210 30
About Sandvik 770 210 30 O-Ring
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DL321-7. Part of the Brake, it prevents fluid leakage at connection points and maintains system pressure integrity essential for efficient drilling operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik DL321-7 (DL321-7). 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 do O-rings fail in drilling equipment?
O-rings fail due to chemical degradation from hydraulic fluid, extreme temperature cycling, excessive pressure spikes, improper installation (twisting or pinching), and age-related hardening. Using the correct material compound for each application is critical.
