HZ-20A model, 13-horsepower Honda, hand start
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Description
Product Introduction
The HZ-20 concrete core drilling machine employs high-speed cutting technology in conjunction with thin-walled diamond drill bits, enabling it to drill and cut high-strength reinforced concrete. It delivers high drilling efficiency, precise hole positioning, and smooth bore walls, ensuring superior core quality—resulting in intact, smooth cores with minimal vibration—and causing no damage to the structure.
Key Features
The drilling rig features a two‑column, vertical configuration with a drill axis oriented vertically downward. It comprises a gasoline engine, gearbox, spindle, drill bit, column, base lifting mechanism, coolant pump, and traveling unit, among other key components.
The drilling rig features helical gears made from alloy steel, with high-frequency surface hardening for exceptional durability. A pair of V‑belt pulleys drives the synthetic diamond drill bit to rotate and perform its function. The lifting mechanism employs a precision ball screw for smooth, effortless operation. The upright column is constructed from thick-walled seamless steel tubing, which undergoes precision grinding followed by hard chrome plating, enabling the drill bit to rotate counterclockwise while moving vertically to achieve drilling or core sampling.
It features a dual-column structure and a screw-feed mechanism, ensuring stable operation while being simple and effortless to use. Equipped with travel wheels for easy mobility.
Employing high-speed cutting technology in conjunction with thin-walled diamond drill bits, this equipment can drill and cut high-strength reinforced concrete with high drilling efficiency, precise hole positioning, and smooth bore walls, delivering superior hole quality. The core samples are intact and smooth, with minimal vibration, ensuring no damage to the structure.
Technical Specifications:
| Parameter Category | Parameter content |
| Model number | HZ-20 Type A |
| Maximum core diameter for drilling | Φ200mm |
| Maximum core drilling depth | 700mm |
| Drilling direction | Vertically downward |
| Feed method | Manual, automatic |
| Spindle speed | 1100-1500r/min |
| Drill bit type | Synthetic diamond thin-wall drill bit |
| Auxiliary power | 13-horsepower Honda manual |
| Drilling rig external dimensions (length × width × height) | 850×700×1200mm |
| Weight | 150kg |
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