Sandvik / Tamrock
770 127 90 Seal kit
DD320-40
| Part Number | 770 127 90 |
| Description | Seal kit |
| Brand | Sandvik (Tamrock) |
| Assembly | PISTON PUMP |
| Type | Drill Rig Spare Part |
Quick answer
770 127 90 (also written 77012790, 770-127-90, or 770.127.90) is a Sandvik seal kit spare part used in the PISTON PUMP assembly of the Sandvik DD320-40. Verified compatible with 3 Sandvik machine models including DD320-40, DD320S, 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: 77012790, 770 127 90, 770-127-90.
Compatible machines
3
OEM cross-reference
770 127 90
About Sandvik 770 127 90 Seal kit
This sealing component prevents hydraulic fluid leakage and contamination ingress in the Sandvik DD320-40 hydraulic system. Located within the PISTON PUMP, compromised seals lead to reduced drilling pressure, increased oil consumption, and potential damage to hydraulic pumps and valves.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD320-40 (DD320-40). 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.
