A grinding disc water well drilling rig is designed for drilling shallow to medium-depth water wells by grinding and cutting soil layers instead of breaking hard rock. Unlike impact or DTH drilling methods, this type of rig relies on continuous rotation and downward feed force.
In real field use, the grinding disc works best when soil layers are relatively soft and consistent. The drilling process is stable, easy to control, and suitable for operators who need predictable performance rather than extreme penetration power.
This type of rig is often chosen not because it can drill the deepest wells, but because it offers simple operation, steady progress, and low learning cost for many common water well projects.
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Which Project Types Commonly Use Vehicle-Mounted Grinding Disc Rigs
A vehicle-mounted grinding disc water well drilling rig is primarily used in projects where mobility and setup speed are more important than maximum drilling depth.
Typical project types include:
Rural drinking water wells
Farm and irrigation water wells
Small community water supply projects
Temporary or scattered drilling locations
These projects usually share similar characteristics:
Drilling points are spread out
Site access roads are narrow or unpaved
Each well has moderate depth requirements
For contractors who need to move between sites frequently, a vehicle-mounted structure reduces transport cost and setup time.
How a Typical Grinding Disc Water Well Drilling Rig Is Configured
A standard grinding disc water well drilling rig is not a complex machine, but every core system has a clear purpose in real drilling work.
Most rigs are built with the following key systems:
Grinding Disc Drilling System Responsible for cutting and grinding soil layers. Disc size and structure directly affect drilling efficiency.
Rotary Drive and Feed System Controls rotation speed and downward pressure. Stable feed force helps avoid tool sticking or uneven drilling.
Hydraulic or Mechanical Power System Provides energy for rotation, lifting, and movement. Power output must match expected soil conditions.
Vehicle-Mounted Chassis Supports fast relocation between job sites and allows drilling directly after parking.
Basic Control System Enables simple operation and easy adjustment during drilling.
This configuration is designed for practical field drilling, not laboratory conditions. Every part exists to balance drilling efficiency, mobility, and cost.
Soil and Formation Conditions That Affect Grinding Disc Performance
Soil condition is one of the most important factors when selecting a grinding disc water well drilling rig.
Suitable soil conditions include:
Clay
Sandy clay
Silty soil
Loose soil layers with low stone content
In these formations, grinding discs can maintain smooth cutting and stable penetration.
Less suitable or unsuitable conditions:
Hard rock formations
Dense gravel layers
Mixed soil with large stones
Strongly compacted rock layers
In such conditions, drilling efficiency drops sharply, and tool wear increases. This type of rig is not recommended for deep hard-rock drilling projects.
Typical Drilling Depth Ranges and Practical Expectations
Practical drilling depth depends on soil conditions and project requirements.
Opening diameter
500mm
Diesel engine model
ongfeng cummins 6bta5.9-c150 112kW / 2200rpm
Nominal drilling depth
400m
Maximum lifting force of main hook
240kN
Active drill rod
108 × 108 × 7500mm
Maximum lifting force of the main hook
160 kN
Drill rod inside the hole, diameter
89 × 6000mm
Rated load of drill tower
280kN
Effective height of drill tower
11900mm
Matching drill pipe
Maximum lifting force of the secondary hook
In real applications, a grinding disc water well drilling rig is commonly used for:
Shallow wells
Medium-depth water wells
Projects where stable drilling is more important than speed
As drilling depth increases, resistance rises, and drilling speed slows. Beyond a certain depth, other drilling methods may become more cost-effective.
For contractors, matching real project depth with the right rig type is more important than chasing maximum specifications.
