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HBR 502-2

HBR 502-2: small and lighter but powerful drilling rig for jet grouting

The Hütte HBR 502-2 is a hydraulic drilling rig for jet grouting. Designed with a stroke lenght beetween 3100 mm and 4100 mm, it can create deep foundation elements with a max. Jet Grouting Depht of 9,5 m / 10,5 m. The HBR 502-2 is one of the most compact and efficient rig for jet grouting and it has been manufactured also with increased power. Designed to be lighter and highly efficient, it is suited for difficult drilling conditions in confined and limited areas, which require particularly compact and mobile equipment.
Jet Grouting is applied when civil engineering works require soil improvement to build new structures or to restore the existing foundations. These techniques are employed in a wide range of cases such as underpinning of existing structures, diaphragm walls, structural and waterproof bottom plugs, tunnel consolidation, launch and arrival shafts for TBM and slope consolidations as well.
The HBR 502-2 has been engineered for jet grouting but it is also intended for many other drilling applications as it can be tailored to any costumer need or geological conditions.

Extraction Force

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Technology and Performance

Technical Data

Please refer to the following chart for more technical details of the HBR 502-2


HBR 502-2 EU USA
Engine power 142 kW 190 HP
Width of crawler 1900 mm 6.2 ft
Stroke of rotary head 4100 / 7100 mm 13.5 / 23.2 ft
Extraction force 50 kN 11,240 lbf
Crowd force 50 kN 11,240 lbf
Working extraction speed 9 m/min 30 ft/min
Fast extraction speed 45 m/min 148 ft/min
Diameters 40 ÷ 159 mm 1.6 ÷ 6.2 in
Weight in working condition 12500 kg 27.557 lbs
Stroke 3100 | 4100 mm 10.17 | 12.45 ft
Max. Jet Grouting Depth 9500 | 10500 mm 31.17 | 34.45 ft
Download our brochure to learn more about the equipment

Download our presentation brochure to learn more about the equipment


HBR 502-2 in action

Some images of our HBR 502-2 on site

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