The Liebherr HS 855 HD duty-cycle crawler crane features a wide range of attachments including grabbers, drag buckets, diaphragm wall grabbers, and pipe laying machines, as well as demolition and dynamic ground compaction. Slurry wall and clamshell operations are also a specialty for this machine.

Unlike conventional crawler cranes designed primarily for static lifting, duty cycle cranes are reinforced to handle severe continuous operations—such as heavy dragline extraction, slurry wall grabbing, dynamic soil compaction, and foundation drilling.

Key Technical Specifications

Primary Applications

Because of its reinforced structure and high-capacity winches, the HS 855 HD is deployed across several heavy civil and foundation sectors:

• Deep Foundation Work: Driving hydraulic slurry wall grabs, casing oscillators, vibrators, and auger drills.

• Dragline & Excavation: Quarry extraction, gravel mining, and dredging using dragline buckets or clamshell grabs.

• Dynamic Soil Compaction: Dropping heavy weights repeatedly to consolidate subsoil.

• General Crane Operation: Material handling and heavy hook lifting on infrastructure projects.

Standout Features

• Free-Fall Winch Tech: High line-pull winches equipped with low-wear, multi-disc brakes engineered specifically for rapid, repetitive duty cycles.

• Flow-on-Demand Hydraulics: Variable displacement axial piston pumps adjust oil supply based on actual workload, preventing pressure spikes and reducing fuel consumption.

• Jobsite Flexibility: Features hydraulically retractable crawlers and modular counterweights for easier transport between job sites, as well as an optional self-assembly jack-up system.

• Robust Controls: Electro-hydraulic proportional controls designed to resist heavy shock loads, dust, and extreme weather.