ST-200 Water Well Drilling Rig
Tire type water well drilling rig is a water well drilling
equipment that uses tires as a mobile carrier, designed
specifically for the excavation of small and medium-sized water
wells for civilian and agricultural irrigation purposes.
It is flexible in movement and can adapt to complex outdoor road
conditions for quick transition. It is easy to operate and does not
require complex installation. It can handle soil, sand layers, and
medium hardness rock layers with stable drilling efficiency, making
it a practical choice for small and medium-sized water well
engineering.
Technical Parameters
| Model | Shitan ST 200 |
| Max Drilling Depth | 200m |
| Drilling Diameter | 105-350mm (Large drilling diameter) |
| Air Pressure | 1.2-3.5 Mpa |
| Rod Length | 3m |
| Rod Diameter | 76-89mm |
| Main Shaft Pressure | 4T |
| Lifting Force | 18T |
| Power Head Stroke | 40m |
| Max Rotary Torque | 5900 Nm |
| Max Rotary Speed | 30-120 r/min |
| Secondary Winch Lifting Force | 1T |
| Jacks Stroke | 1.35m |
| Moving Speed | 2.5 km/h |
| Uphill Angle | 21° |
| Weight | 5.5T |
| Engine | Xidong 65kw |
| Overall Dimensions | 4400*2150*2200mm |
| Working Condition | Loose layer and bedrock |
Mainly applicable to geology
Cohesive soil: including loess, red soil, silty clay, etc., with
low drilling resistance and high drilling efficiency.
Sand layer/gravel layer: Suitable for fine sand, medium sand, and
gravel containing sand layers, combined with mud wall protection,
can effectively prevent hole collapse.
Weathered rock layers: strongly weathered, moderately weathered
sandstone, shale, limestone, etc., can be smoothly drilled through
impact+cutting mode.
Loose rock layers: fractured rock layers and gravel layers with
developed fissures, with better adaptability than pure hard rocks,
requiring specialized drill bits.
Core strengths
Convenient mobility: The tire chassis is paired with a traction
structure, eliminating the need for large equipment during
transitions. It is suitable for complex outdoor road conditions
such as rural and mountainous areas, and has high efficiency in
short distance transportation.
Easy to operate: compact structure, simple control process, no need
for a professional team, single or double person operation, quick
to get started and easy to maintain.
Wide adaptability: able to cope with various soft geological
conditions such as soil, sand layers, weathered rocks, etc.,
meeting the needs of small and medium-sized water wells for
civilian drinking water, agricultural irrigation, etc.
Cost controllable: The equipment procurement and operation costs
are lower than those of large tracked drilling rigs, with low
energy consumption, simple daily maintenance, and reduced overall
project investment.
Flexible and efficient: No complex installation or fixation is
required during operation, and the support legs can be quickly
leveled to start work. The drilling efficiency is stable and
suitable for dispersed operations in multiple locations.
Poor stability, affecting drilling accuracy
Tires are "flexible load-bearing", and if the ground is slightly
uneven during operation, the equipment is prone to slight shaking;
Compared to tracked drilling machines (with adjustable leveling) or
fixed drilling machines (with fixed bases), in scenarios that
require high-precision drilling (such as some industrial water
wells), the verticality of the hole wall and the consistency of the
hole diameter may be slightly inferior.
Insufficient durability for long-term high-intensity operations
The original intention of designing moving parts such as tires and
suspension systems is "convenient transition", rather than
"long-term high-intensity load-bearing operations"; If high load
drilling is carried out continuously for a long time (such as more
than 10 hours of hard rock operations per day), the wear and tear
of tires and suspension components will accelerate, and vulnerable
parts need to be replaced more frequently. The long-term use cost
and failure rate are higher than those of crawler or fixed drilling
rigs designed specifically for high-intensity operations
Summary: "Scene Matching Degree" of Advantages and Disadvantages
The core value of a tire type water well drilling rig lies in its
ability to achieve high flexibility and cost-effectiveness with
limited drilling capacity, making it suitable for scenarios with
shallow to medium depths, dispersed locations, and small to
medium-sized needs; However, in scenarios such as deep wells, hard
rocks, complex terrains, and high-intensity operations, its
disadvantages will be magnified, and it is necessary to prioritize
the use of tracked or specialized drilling rigs.
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