Large Water Well 350mm Pneumatic Drilling Rig 350m Depth Commerical

Large Water Well 350mm Pneumatic Drilling Rig 350m Depth Commercial

The ST 350 drilling rig is equipped with powerful hydraulic rock drills that offer high penetration rates, reliability, and excellent fuel economy. It is a high-efficiency, multi-functional down-the-hole water well drilling equipment suitable for drilling water wells, agricultural irrigation wells, geothermal wells, and other types of well holes.

Technical Specifications

Parameter	Specification
Drilling Rig Model	ST 350
Drilling Depth	350 meters
Hole Diameter	φ140 - 325mm
Advance Length (One Time)	6.6 meters
Working Pressure	1.7-3.3MPa
Air Consumption	17-35m³/min
Length of Rod	1.5m, 2m, 3m, 6m
Diameter of Rod	φ89, φ102, φ114
Lifting Power	24T
Rotation Torque	6200-85000N.m
Rotation Speed	55-115r/min
Diesel Engine	Yuchai
Engine Power	92Kw/2200rpm
Travelling Speed	0-2.5 Km/h
Climb Capacity	30°
Weight	9000kgs
Dimension	5900x2000x2850mm
Application	Complicated geological conditions: Rock, Mud, Sand etc.

Key Advantages

• The machine can perform both air drilling (with air compressor) and water drilling (with mud pump)
• Multifunctional geothermal well drill rig with optimized Yuchai four-cylinder engine meeting national emission and environmental standards
• Enhanced hydraulic system, supporting configuration, and appearance for improved performance and working efficiency
• Double rotation motor increases rotary torque and revolving speed
• Optional one-ton winch for easier lifting operations
• Optional 1.5m supporting oil cylinder for convenient loading and transport

Bit Importance in Drilling Operations

Bits play a crucial role in water well drilling operations. The quality of a bit directly affects drilling efficiency and quality. Proper selection and usage of drill bits are essential for optimal production and operational performance.

Regular Maintenance Requirements

Filter Element Maintenance: Regular replacement of filter elements prevents impurities from entering the system and causing faults. Check for metal particles during replacement and diagnose any issues promptly.

Lubricating Grease Management: Use recommended lithium grease G2-L1 for anti-wear performance in heavy load conditions. Ensure proper storage and application to prevent contamination.

Fuel Management: Select appropriate diesel grades based on ambient temperatures. Prevent contamination and regularly drain water from fuel tanks to maintain optimal engine performance.

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