1. Rated drilling depth of 800 meters; utilizes DTH (Down-The-Hole) impact drilling technology with variable air pressure capabilities; compatible with borehole diameters of 100-254mm; optional foam injection system available to prevent bit clogging in clay formations. 2. Features a dual-pump combined-flow hydraulic control system with an independent cooling module, ensuring stable operation without overheating during prolonged, high-load tasks; the power head offers stepless torque adjustment to match varying drilling loads across different rock formations. 3. Equipped with a widened and reinforced heavy-duty crawler undercarriage, a composite telescopic drilling mast, and a dual-cylinder mast-raising mechanism; designed with a low center of gravity for superior vibration stability during deep-hole operations and easy transport when the mast is retracted. 4. Integrates depth acquisition and pressure monitoring instrumentation; includes an independent auxiliary winch system supporting long-casing operations, effectively protecting borehole walls in fractured strata and minimizing the risk of collapse.
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Product Description
Product Features
Product Specifications
Application Scenarios
Product Description ： The YGQZ-800 crawler-mounted drilling equipment is designed for deep-hole DTH (Down-The-Hole) percussion drilling, offering a maximum drilling depth of 800 meters and a hole diameter range of Φ76–Φ300mm. The unit features a dual-pump combined hydraulic system powered by a turbocharged diesel engine; it utilizes high-pressure air from an external compressor to drive the DTH hammer for rock fragmentation and employs compressed air to carry cuttings to the surface for dry discharge. Equipped with a foldable composite mast and widened heavy-duty crawler tracks, the rig is specifically optimized for challenging geological conditions, including deeply weathered rock, fractured bedrock, and interbedded soft and hard strata.
Product Features： 1. Features load-adaptive feed control that automatically adjusts feed pressure based on rock hardness; this minimizes dry firing and impact damage, thereby extending the service life of the drill bit and impactor. 2. Utilizes a dual-pump hydraulic system where rotation and feed operations function independently; this accelerates auxiliary tasks such as rod handling and tripping, effectively shortening the overall construction cycle per well. 3. Equipped with a telescopic composite drill mast; the machine's height is reduced when folded, allowing for passage through confined spaces like narrow mountain roads and tunnel entrances without requiring large cranes for mast assembly or disassembly. 4. Features an independent hydraulic cooling system that prevents overheating during continuous operation in high-altitude, high-temperature, or remote environments; this reduces downtime spent waiting for the system to cool, making it ideal for long-term, large-scale well-drilling projects. 5. Offers an expandable dual-mode (air/water) capability; it supports pneumatic dry drilling in hard rock and—with an optional mud pump—rotary drilling in soft soil, allowing a single unit to handle diverse geological formations.
Product Specifications：YGQZ-800
Item
Parameter
Item
Parameter
The weight (T)
13
Drill pipe diameter (mm)
Φ76/Φ89/Φ102/Φ114
The hole diameter (mm)
100-254
Drill pipe length (m)
1.5m / 2.0m / 3.0m / 6.0m
Drilling depth (m)
800
Rig lifting force (T)
30
One-time advance length (m)
6.6
Rapid rise speed (m/min)
20
Walking speed (km/h)
2.5
Fast feeding speed (m/min)
40
Climbing angles (Max.)
30
Width of loading (m)
2.95
Equipped capacitor (kw)
153
Hoisting force of winch (T)
2
Using air pressure (MPA)
1.7-3.5
Swing torque (N.m)
8850-13150
Air consumption (m³/min)
17-42
Dimension (mm)
6300×2300×2950
Swing speed (rpm)
45-140
Equipped with hammer
Medium and high wind pressure series
The penetration efficiency (m/h)
15-35
High leg stroke (m)
1.7
The engine brand
Cummins engine
Application Scenarios: Suitable for projects such as deep municipal water supply wells, mine water supply wells, geothermal pilot holes, and hydrological monitoring wells. The unit features high lifting capacity and adaptive feed regulation, offers strong resistance to hole deviation during deep-hole operations, and is capable of stable, continuous drilling in remote or hard-to-access areas—including high-altitude regions, Gobi deserts, and mountainous terrain.
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