


Sandvik / Tamrock
330 312 68b SEAL
DD321-40
| Part Number | 330 312 68b |
| Description | SEAL |
| Brand | Sandvik (Tamrock) |
| Assembly | Tank, Fuel |
| Type | Drill Rig Spare Part |
Quick answer
330 312 68b (also written 33031268b, 330-312-68b, or 330.312.68b) is a Sandvik seal spare part used in the Tank, Fuel assembly of the Sandvik DX700. Verified compatible with 21 Sandvik machine models including DD320S, DD321-40, DD321-40C. 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: 33031268b, 330 312 68b, 330-312-68b.
Compatible machines
21
OEM cross-reference
330 312 68b
About Sandvik 330 312 68b SEAL
This sealing component prevents hydraulic fluid leakage and contamination ingress in the Sandvik DX700 hydraulic system. Located within the Tank, Fuel, 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 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
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.









