BK DRILLING

Quick answer

803 135 09 (also written 80313509 or 803-135-09) is a Sandvik u-seal spare part used in the HYDR. CYLINDER assembly of the Sandvik DX700. Verified compatible with 93 Sandvik machine models including AXERA 6-240, AXERA 7-240, AXERA 8-290. 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: 80313509, 803 135 09, 803-135-09.

Compatible machines

93

OEM cross-reference

803 135 09

About Sandvik 803 135 09 U-SEAL

Designed specifically for the Sandvik DX700 HYDR. 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 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.