Tricone bits / Casing systems / Foundation drilling
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HD525 DTH Hammer & Bits
Foundation drilling / HD525

HD525 DTH Hammer & Bits

Foundation drilling · matched hammer and bit

A supplier-catalog hammer series for foundation drilling. Select the bit, shank, connection and air supply together. Refer to the original parameter sheet for dimensions and operating limits; confirm the current specification before purchase.

Model / family
HD525
Hammer outside diameter
525 mm
Recommended hole range
600–800 mm

Technical data is listed below. The complete catalog is available when discussing your requirements.

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PRODUCT DATA

Technical specifications

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Extracted from the supplier catalog · PDF page 14

Product specifications
Length, excluding bit2155 mm
Weight, excluding bit2223 kg
Hammer outside diameter525 mm
Compatible bit shankHD525
Recommended hole range600–800 mm
ConnectionHexagonal connector; customization available
Working air pressure10–25 bar
Impact frequency, reference18.0 Hz @ 17 bar
Recommended rotary speed15–30 rpm
Recommended axial thrust45 kN

Reference air consumption

Reference air consumption
Air pressureAir consumption (m³/min)
14 bar75.5
17.2 bar90.4
20.7 bar105.8
24 bar121.5

Catalog data is for selection reference. Confirm current specifications, connection, air supply and ground conditions with the supplier before ordering.