Tricone bits / Casing systems / Foundation drilling
HJG DRILLBLACK DIAMOND · DRILLING TOOLS
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HK12-Y DTH Hammer & Bits
Foundation drilling / HK12-Y

HK12-Y 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
HK12-Y
Hammer outside diameter
275 mm
Recommended hole range
305–350 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 8

Product specifications
Length, excluding bit1610 mm
Weight, excluding bit510.2 kg
Hammer outside diameter275 mm
Compatible bit shankHY12
Recommended hole range305–350 mm
ConnectionAPI 6 5/8" REG / API 7 5/8" REG
Working air pressure10–20 bar
Impact frequency, reference22.0 Hz @ 17 bar
Recommended rotary speed15–35 rpm
Recommended axial thrust24 kN

Reference air consumption

Reference air consumption
Air pressureAir consumption (m³/min)
14 bar32.94
17.2 bar45.63
20.7 bar50.1
24 bar54.54

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