ST350 Automatic Crawler Borewell Machine Full Hydraulic 350m Deep Drilling Rig

The ST350 is a lightweight, efficient crawler drill rig for 350m deep water wells. Features advanced hydraulics, 92KW power, and 20T lifting force. Ideal for mountainous terrain and rock formations. Includes 1-year warranty and overseas service support.

Place of Origin China
Air pressure 1.25-3.5Mpa
Warranty 1 Year
After-sales service provided Engineers available to service machinery overseas
Packaging Details Wooden case or naked
Color Yellow
Product Description
ST350 Automatic Borewell Machine Crawler Type Full Hydraulic 350m Deep
Product Specifications
Attribute Value
Type Crawler Mounted Drill Rig
Drilling Depth 350M
Application Drilling well, hammer for drills
Air Pressure 1.25-3.5Mpa
After-sales Service Engineers available to service machinery overseas
Warranty 1 Year
Weight 9800KG
Power 92Kw
Color Yellow
Drilling Diameter 75-325mm
Machine Introduction

The ST350 Series Water Well Drilling Rig is a lightweight, efficient and versatile drilling equipment powered by a diesel engine from a leading Chinese manufacturer. Designed primarily for drilling wells and agricultural irrigation systems, it excels in water extraction projects in mountainous terrain and rock formations.

This drilling rig series incorporates advanced hydraulic technology, featuring large-bore hydraulic cylinder advancement and high-torque hydraulic motor rotation for superior performance.

Technical Parameters
Parameter Value
Type ST350
Weight 9.8T
Dimensions 6m × 2m × 2.5m
Hole Diameter 105-305mm
Drilling Depth 350m
One-time Advance Length 6m
Walking Speed 2.5KM/H
Climbing Angle 30°
Power 92KW
Air Pressure 1.7-3.3MPA
Air Consumption 17-35
Drill Pipe Length 1.5m, 2.0m, 3.0m, 6.0m
Drill Pipe Diameter 89mm, 102mm
Rig Lifting Force 20T
Swing Speed 55-115rpm
Swing Torque 6200-85000N.m
Drilling Rig Components & Operation

The primary drilling method utilizes rotary table with mud positive circulation. When equipped with appropriate tools, it can adapt to various drilling applications.

The rig operates effectively in clay, sand layers, and bedrock formations. The pressure mechanism enables pressurized drilling for improved shallow hole efficiency, transitioning to decompression drilling as depth increases.

Winch System
  • Main Winch: For lifting drilling tools and lowering well tubes
  • Auxiliary Winch: Drives impact samplers, coring tools, and sand lifting cylinders; also used for well washing
  • Tool Winch: Handles single vertical root movement and tool lifting to reduce manual labor
Performance Features
  • Optimal weight distribution between axles for superior driving and off-road capability
  • Ample maintenance space for all core components
  • Excellent resistance to wind, sand, and seismic activity
  • Operates in temperatures from -20°C to 45°C
  • Premium power components and hydraulic systems from reliable manufacturers
  • Standardized bearings and oil seals for easy replacement
Packaging & Shipping

Packaging: Standard export packaging or customized solutions available

Shipping: Handled by professional freight forwarders

Delivery Time: 7-15 working days after deposit

Product Images

Jinzhou Shitan Machinery Equipment Co., Ltd. Main Products:

Pneumatic Drilling Rig / Air Drilling Rig(ST-180,ST-200,ST-260,ST-300,ST-350,ST-400,ST450,ST-450,ST-500, ST-600,ST-800 and other Pneumatic water well drilling Rigs.), Crawler Water Well Drilling Rig / Trailer Mounted Drilling Rig / Water Well Drilling Rig / Hydraulic Borewell Machine / Hard Rock Drilling Equipment / Diamond Core Drill Rig / Geological Drilling Rig / Soil Testing Drilling Rig / Portable Water Well Drilling Rig(ST-30,ST-50,XY-1A, XY-1B, XY-2, XY-2B,GK180, GK200, GY150, GY200 and 30 impact drill rig,ZLJ series tunnel drilling rig and other geological drilling machines)Crawler Track Undercarriage, Drilling Mud Pump(BW150,BW160,BW200,BW250,BW850 series Drilling mud pumps), Drilling Air Compressor, Water Well Drill Bits(PDC Drill Bit, Tricone Bit, DTH Button Bit), Water Well Drill Pipe, Drilling Rig Spare Parts( drilling rods , drilling rods joint , casing pipe, casing coupling, core tube, core tube coupling, lifters, automatic drop hammer, sampler, SPT tool, wrench fork, pad fork, lock joint), Track Transporter

Good quality, professional after-sales service, welcome to order

ST350 Water Well Drilling Rig in operation Close-up of ST350 drilling mechanism ST350 rig showing hydraulic components Technical diagram of ST350 drilling rig ST350 rig in field operation
Interested in this product?
Contact us now for more details and a custom quote.