


Sandvik / Tamrock
522 077 80a O-Ring
Rock Drill Spare Part
| Part Number | 522 077 80a |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Cooler Assembly |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
522 077 80a (also written 52207780a, 522-077-80a, or 522.077.80a) is a Sandvik o-ring spare part used in the Cooler Assembly assembly of the Sandvik DX700. Verified compatible with 50 Sandvik machine models including COMMANDO DC125R, Commando DC130Ri, DB120. Used in 10 drifter configurations (HE300, HF800T, HL650). 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: 52207780a, 522 077 80a, 522-077-80a.
Compatible machines
50
Drifter configurations
10
OEM cross-reference
522 077 80a
About Sandvik 522 077 80a O-Ring
A precision-molded sealing element for the Sandvik DX700, this O-ring is used in the Cooler Assembly to create a reliable static or dynamic seal. Even minor O-ring deterioration can lead to system pressure loss, so scheduled replacement during routine maintenance is strongly recommended.
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 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.









