Hydraulic Breaker Hoses: Selection, Burst Causes & Spiral Guards

The lifelines connecting the breaker to the excavator are **Hydraulic Hoses**. Since breakers are constantly moving and vibrating, hoses wear out and burst much faster than other hydraulic equipment.

1. Why 4-Wire Hoses?

Sudden pressure peaks occur in the breaker line (hammer line). Standard 2-wire hoses cannot withstand these shocks and burst at the crimp. As HKM, we strictly recommend using **4-Wire (4SH / 4SP) High-Pressure Hoses** for breakers.

2. Spiral Guard Protection

Hoses rub against each other or the excavator boom during operation. This friction peels off the outer rubber and exposes the wires. You can triple the life of your hoses by wrapping them with **Plastic Spiral Guards**.

3. Compatibility

HKM offers hose crimping services with fittings for all breaker connections:

• Fitting Types: JIC, BSP, ORFS, Metric (Komatsu/Hitachi type) fittings.
• Excavators: Breaker piping hoses for Caterpillar, Komatsu, Hitachi, Volvo, Hidromek.
• Breakers: Fittings suitable for Atlas Copco, Rammer, Furukawa, Soosan inlet/outlet ports.