Sandvik / Tamrock
550 550 45 SEAL KIT
DD320-40
| Part Number | 550 550 45 |
| Description | SEAL KIT |
| Brand | Sandvik (Tamrock) |
| Assembly | CYLINDER |
| Type | Drill Rig Spare Part |
Quick answer
550 550 45 (also written 55055045, 550-550-45, or 550.550.45) is a Sandvik seal kit spare part used in the CYLINDER assembly of the Sandvik DD320-40. Verified compatible with 18 Sandvik machine models including DD320-40, DD320S, 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: 55055045, 550 550 45, 550-550-45.
Compatible machines
18
OEM cross-reference
550 550 45
Reference image
Available
About Sandvik 550 550 45 SEAL KIT
Designed specifically for the Sandvik DD320-40 CYLINDER, this seal ensures leak-free operation of hydraulic circuits. Mining environments expose seals to extreme temperatures, pressure spikes, and abrasive particles, making periodic replacement essential for uninterrupted drilling operations.
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.
