887 285 29 Seal kit

DP800

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Part Number	887 285 29
Description	Seal kit
Brand	Sandvik (Tamrock)
Assembly	VALVE ASSEMBLY
Type	Drill Rig Spare Part

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Compatibility

Machine Models

DD321-40 DD321-40C DD421-60 DD421-60C DL430-7 DP1100 DP1500 DP800 DT621 DT721 DT821 DT821-C DT821-SC DX700 DX780 DX780R DX800 PANTERA 1100 PANTERA 900 RANGER 500-2 RANGER 780 RP RANGER DX800

887 285 29 (also written 88728529, 887-285-29, or 887.285.29) is a Sandvik seal kit spare part used in the VALVE ASSEMBLY assembly of the Sandvik DX700. Verified compatible with 22 Sandvik machine models including DD321-40, DD321-40C, DD421-60. 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.

Compatible machines

OEM cross-reference

887 285 29

About Sandvik 887 285 29 Seal kit

Designed specifically for the Sandvik DX700 VALVE ASSEMBLY, 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.