Sandvik / Tamrock
851 077 89 SEAL KIT (FOR CYLINDER)
CHA700
| Part Number | 851 077 89 |
| Description | SEAL KIT (FOR CYLINDER) |
| Brand | Sandvik (Tamrock) |
| Assembly | HYDRAULIC CYLINDER ( ZOOM ) |
| Type | Drill Rig Spare Part |
Quick answer
851 077 89 (also written 85107789, 851-077-89, or 851.077.89) is a Sandvik seal kit (for cylinder) spare part used in the HYDRAULIC CYLINDER ( ZOOM ) assembly of the Sandvik DD321-40. Verified compatible with 15 Sandvik machine models including CHA560, CHA700, DD321-40. 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: 85107789, 851 077 89, 851-077-89.
Compatible machines
15
OEM cross-reference
851 077 89
About Sandvik 851 077 89 SEAL KIT (FOR CYLINDER)
Critical for maintaining system pressure integrity in the Sandvik DD321-40, this seal is part of the HYDRAULIC CYLINDER ( ZOOM ) and provides a reliable barrier against fluid loss and external contamination. Regular seal replacement is a cost-effective maintenance practice that prevents major hydraulic system failures.
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
What happens when a hydraulic seal fails?
A failed hydraulic seal causes fluid leakage, leading to reduced system pressure, loss of machine force and speed, increased oil consumption, environmental contamination, and potential damage to pumps and valves operating without adequate fluid supply.
How can I identify worn seals in my drilling equipment?
Signs of seal wear include visible fluid leaks around cylinders and connections, reduced hydraulic system pressure, slower machine movements, increased oil consumption, and contaminated hydraulic fluid appearing milky or discolored.
