1. Maximum drilling depth of 350 meters; utilizes a pneumatic down-the-hole (DTH) impact drilling mode with exceptional hard-rock breaking capabilities, making it suitable for medium-to-deep drilling operations. 2. Crawler-type undercarriage offers superior off-road performance, allowing for free movement across complex terrains such as muddy ground and slopes without the need for a crane to assist with positioning. 3. Features a hybrid hydraulic-pneumatic power system providing ample power for rotation and impact; compatible with casing drilling tools to handle challenging formations like quicksand or collapsing boreholes. 4. Centralized hydraulic controls ensure easy operation and adjustment; supports various drilling tools and offers a wide range of borehole diameters, making it suitable for diverse applications.
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Product Description
Product Features
Product Specifications
Application Scenarios
Product Description ： The YGQZ-350 water well drilling rig utilizes the pneumatic down-the-hole (DTH) impact principle to achieve efficient rock breaking, with a maximum drilling depth of 350 meters. It features a crawler chassis adapted for complex terrain and a stable, reliable hydraulic control system, while supporting casing-while-drilling operations to prevent borehole wall collapse. The rig boasts high load-bearing capacity and excellent stability during deep-hole operations; it is widely used for rural drinking water wells, agricultural irrigation wells, engineering dewatering holes, and shallow geological boreholes. Easy to operate and maintain, it is a preferred choice for medium-to-deep well drilling projects.
Product Features: 1. Reinforced, extended drill rod design ensures resistance to torsion and deformation during deep-hole operations, guarantees verticality, and improves the well completion pass rate. 2. Automatic hydraulic rod-unloading system enables rapid uncoupling, reduces the need for manual assistance and labor intensity, and boosts drilling efficiency. 3. Dust-proof design protects the impactor and rotary mechanism from dust erosion, ensuring high durability during prolonged, continuous field operations. 4. Optimized power matching and moderate energy consumption enable rapid hard-rock drilling, significantly shortening the construction cycle per hole compared to traditional rigs. 5. Modular layout facilitates easy assembly and disassembly of drill rods and impactors, simplifies routine maintenance, and lowers long-term operating costs.
Product Specifications:YGQZ-350
Item
Parameter
Item
Parameter
The weight (T)
8.6
Drill pipe diameter (mm)
Φ76/Φ89/Φ102
The hole diameter (mm)
100-300
Drill pipe length (m)
1.5m / 2.0m / 3.0m/6.0m
Drilling depth (m)
350
Rig lifting force (T)
18
One-time advance length (m)
6.6
Rapid rise speed (m/min)
18
Walking speed (km/h)
2.5
Fast feeding speed (m/min)
30
Climbing angles (Max.)
30
Width of loading (m)
2.7
Equipped capacitor (kw)
91
Hoisting force of winch (T)
2
Using air pressure (MPA)
1.7-3.0
Swing torque (N.m)
6200-8500
Air consumption (m³/min)
17-36
Dimension (mm)
5300×2000×2550
Swing speed (rpm)
66-135
Equipped with hammer
Medium and high wind pressure series
The penetration efficiency (m/h)
15-35
High leg stroke (m)
1.4
The engine brand
Yuchai engine
Application Scenarios:
A rural drinking water and irrigation well project in mountainous areas adopted the YGQZ-350 water well drilling rig. The construction site featured sloped, muddy terrain, and the borehole strata contained quicksand and hard rock layers, which easily caused borehole collapse. Traditional drilling rigs struggled to move on-site and had low efficiency in breaking hard rock.
The YGQZ-350 crawler rig traveled freely on complex slopes and muddy ground without crane assistance. Its pneumatic DTH impact drilling mode efficiently penetrated hard rock, while casing drilling solved the borehole collapse risk in quicksand formations. The reinforced drill rods guaranteed borehole verticality, and the automatic hydraulic rod-unloading system cut manual work and accelerated drilling progress. With dust-proof structure and optimized power matching, the rig ran continuously for long hours on site.
Multiple water wells with depths ranging from 120 m to 260 m were completed smoothly. The construction cycle per well was greatly shortened compared with old equipment. The finished wells supplied stable clean water for local residents’ daily use and farm irrigation. The customer praised its simple centralized hydraulic operation, convenient modular maintenance and low long-term operating cost.
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