The TDZK-300 and TDZK-800 are high-performance hydraulic core drill machines designed for vertical, stitch, and angle drilling in heavy reinforced concrete. Ideal for bridge, tunnel, and support beam work, they excel in large-scale cutting projects both on land and underwater—operating at depths up to 100 meters.
Paired with the TD hydraulic power pack, they offer excellent stability in horizontal, upright, and inclined positions, delivering powerful, precise, and automatic drilling for demanding construction environments.
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The TDZK-300 and TDZK-800 are hydraulic core drills for vertical, stitch and angle drilling in heavily reinforced concrete. Hydraulic drive holds steady torque at depth, where electric units lose power and stall in rebar.
Stitch drilling with overlapping holes opens up sections that are too thick or too congested for a saw. Typical work includes bridge and tunnel modifications, support beam removal, and forming openings through structural walls.
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