Efficient Mountain Air Drilling Rig With Multiple Specifications 6m×2m×2.5m

Product Summary
ST-350 air drilling rig delivers 350m depth with 105-300mm diameter, featuring Yuchai 91KW engine and dual-circuit hydraulic system for precise control. Handles complex formations with intelligent monitoring, safety protections, and durable components for efficient mountain drilling operations.
Basic Properties
Place of Origin: China
Brand Name: ShiTan
Certification: ISO
Model Number: ST-350
Trading Properties
Minimum Order Quantity: Negotiation
Price: Negotiation
Payment Terms: T/T,Western Union
Supply Ability: 2000Set/Year
Product Details
Highlight:

mountain air drilling rig

,

mountain water well drilling rig

,

6m air drilling rig

Name: ST350 Air Drilling Rig
Model: ST-350
Voltage: 380V
350 Meters Depth Pneumatic Water Well Drilling Rig With One Well Per Day: 85/170r/min
Total Weight: 9.8T
Power Type: Diesel
Max Drilling Depth: 350m
Drilling Diameter: 105-300mm
Engine: Yuchai 91KW
Dimension: 6m×2m×2.5m
Product Description
Efficient Mountain Air Drilling Rig With Multiple Specifications
ST-350 Pneumatic Drilling Rig Overview

Reliability meets performance in the Efficient Mountain Air Drilling Rig. Its dual-circuit hydraulic system provides independent control of rotation and feed, enabling precise drilling in complex geological structures. The oversized cooling system prevents overheating during extended runs, while corrosion-resistant components extend service life in harsh environments.

The 350 meter water well drilling rig is a medium-sized drilling equipment specifically developed for underground water wells at depths of 50-350 meters. Its core positioning is to "balance depth and efficiency", meeting the needs of medium and deep water wells such as centralized water supply in towns and small-to-medium industrial water use, as well as drilling in complex formations including weathered rocks and thick sand layers. With characteristics of "strong power, intelligent controllability, stability and durability", it has become the core equipment for scenarios including water supply for people's livelihoods, industrial production, and mining area assistance.

Technical Specifications
Parameter Value
Drilling Depth 350m
Drilling Hole Diameter 105-305mm
Working Wind Pressure 1.25-3.5Mpa
Gas Consumption 16-55m³/min
Drill Pipe Length 6m
Drill Pipe Diameter 89mm
Axial Pressure 4T
Lifting Force 24T
Lifting Speed 20m/min
Fast Forward Speed 40m/min
Maximum Turning Torque 8900/NM
Maximum Rotation Speed 85/170r/min
Lifting Force of Small Auxiliary Winch 1.2T
High Leg Travel 1.35m
Footage Efficiency 10-35m/h
Walking Speed 2.5km/h
Climbing Degree 30°
Weight 9T
Overall Dimension 5.2×2×2.35m
Engine Yuchai 91KW
Strong Formation Adaptability

Coping with complex geological conditions in medium-deep holes, formations within 350 meters often involve alternating "sand layers + gravel layers + moderately weathered rock". The equipment achieves multi-formation compatibility through "modular drilling tools + intelligent parameter control":

  • Unconsolidated Formations (Sand Layers, Gravel Layers): Equipped with scraper bits or auger bits with a diameter of Φ150-300mm, combined with a mud circulation system. The drilling speed (5-15r/min) is controlled by hydraulics to avoid "drill pipe sticking" in sand layers; mud wall protection can form a 5-10mm mud cake on the hole wall, preventing collapse of deep hole walls.
  • Hard Formations (Moderately Weathered Rock): Replace with roller cone impact bits and activate the hydraulic impact mode (impact frequency 300-500 times per minute). Rock breaking is achieved through "low rotation speed + high impact force", while maintaining large-displacement mud circulation to quickly discharge cuttings and avoid blunting of bits due to cuttings accumulation at the bottom of the hole.
  • Special Formations (Salt-Bearing Layers, Clay Layers): Collapse-resistant drill pipes and anti-adhesion bits can be installed, combined with customized mud (e.g., salt inhibitors, lubricating additives) to reduce "bit balling" in clay layers and corrosion of drilling tools by salt-bearing layers, ensuring continuous drilling in deep holes.
Balanced Intelligence and Safety

Due to "large hole depth and complex formations", medium-deep hole drilling has higher requirements for operation and safety. The 350-meter water well drilling rig improves controllability through intelligent configurations:

  • Intelligent Monitoring and Parameter Control: Most models are equipped with a touch screen to display real-time parameters such as drilling depth, torque, hydraulic pressure, and mud flow. Some intelligent models feature a "formation identification algorithm" that automatically adjusts drilling speed and impact force according to torque changes, allowing even novice operators to work stably.
  • Safety Protection System: Standardly equipped with "overload protection" (automatic shutdown when torque exceeds the limit), "drill pipe anti-drop device" (locked drill pipe joints + hole mouth anti-drop clips), and "hydraulic system explosion-proof valve" (preventing sudden sinking of the machine body due to oil pipe rupture). These functions avoid high-risk faults such as "drill pipe sticking" and "drill pipe dropping" in deep holes, reducing the difficulty and cost of rescue.
  • Easy Operation: Equipped with an "automatic drill pipe handling device", eliminating the need for manual handling of heavy drill pipes (3-6 meters long). Only 2-3 people are required for a single shift operation, saving 50% of labor compared with traditional manual drill lifting. Some models support remote control, allowing monitoring of drilling operations 10-20 meters away to avoid risks such as mud splashing at the hole mouth and noise pollution.
Optimized Durability and Maintainability

The 350-meter water well drilling rig is mostly used for long-term operations in fields, towns, and mining areas. The equipment is designed specifically for durability and maintainability:

  • Durable Core Components: Hydraulic pumps and motors use imported or domestic first-tier brands (e.g., Kawasaki, Huade), which can withstand high pressure and long-term operation; drill pipes are made of 45# seamless steel pipes,经过 quenching and tempering treatment, with a tensile strength of ≥800MPa and a service life of 5000-8000 meters.
  • Convenient Maintenance: Key components (e.g., hydraulic filters, drill bits, mud pumps) are reserved with quick-disassembly interfaces. It only takes 2-4 hours to replace hydraulic oil and clean mud pipelines; the machine body is equipped with a fault diagnosis system, which indicates problems such as "insufficient hydraulic oil" and "clogged filter" through indicator lights or a display screen, allowing preliminary troubleshooting without professional personnel.
  • Strong Weather Resistance: The machine body adopts sandblasting derusting + electrostatic spraying technology, with a rust prevention grade of Sa2.5, and can operate stably in an environment of -20℃ to 45℃; the hydraulic system is equipped with an oil temperature control device (low-temperature preheating, high-temperature heat dissipation) to avoid faults caused by hydraulic oil solidification in winter and excessive oil temperature in summer.
Product Gallery
Frequently Asked Questions
Q: What models do you produce?
A: Our lineup features hydraulic water well rigs, core drilling machines, engineering drills, and geological exploration equipment. Contact us with your drilling targets and we will propose the best solution.
Q: Manufacturing location?
A: Our factory sits in Jinzhou, within the Shijiazhuang economic zone of Hebei Province, China—an area renowned for heavy machinery manufacturing and export logistics.
Q: Real manufacturer or third party?
A: Genuine manufacturer. 20+ years of drilling rig production, ISO-certified, with a modern facility that covers everything from metal fabrication to final assembly and quality testing.
Q: Shipping lead time?
A: Small hydraulic rigs: 5-7 days. Large pneumatic units: 7-15 days. We can accommodate urgent timelines—please flag your priority when ordering.
Q: Warranty scope?
A: Full one-year coverage on all non-wear components. Remote diagnostics and spare parts guidance are complimentary during the warranty term.
Q: Air compressor longevity?
A: Designed for a service life exceeding 10 years when maintained per our recommended schedule.
Q: How to pay?
A: We work with T/T wire transfers and Western Union for simple, secure international payments.
Q: Export documents included?
A: Yes—you get the complete set: invoice, contract, packing list, BL, insurance documents, and certificate of origin upon request.
Q: When can I reach support?
A: Around the clock, online. We aim to close all technical tickets within 48 hours.
Q: Overseas installation support?
A: Remote setup guidance is included free of charge. Our field engineers are also available for overseas deployment when on-site commissioning and training are needed.
The Manufacturer Difference

When you buy from us, you are buying direct from the factory. Our 20+ years of drilling rig expertise, ISO-certified processes, and modern Hebei production facility mean competitive pricing, consistent quality, and direct access to engineering support.

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

Mrs. Anna

Manager

Related Products
  • Quartz Vein Portable Rock Drilling Machines With Hydraulic Feed

    XY-1 portable rock drilling machine delivers 100-meter drilling capacity with hydraulic feed for high efficiency. Features diesel engine power, 75-300mm bore diameter, and split structure for remote transport. Ideal for geological survey, mineral exploration, and water well drilling.
  • Multi Speed Water Borehole Drilling Machine 100m Angle Range 90-75°

    Multi-speed hydraulic borehole drilling machine for water wells, soil testing & borewells. 100m depth, 90-75° angle range, 0-300mm diameter. Diesel powered, 500kg weight, 15KN winch. Features centralized controls, hydraulic automatic feed, wide formation adaptability for soil to bedrock.
  • Soil Sample Hydraulic Borewell Machine With Winch

    Hydraulic Borewell Machine: 100m drilling depth, 600kg weight, 1-year warranty. Features hydraulic auto-feed, 3-speed spindle, ball-type clamping for continuous sampling. Compatible with soil, rock & hard rock. CE certified, full export docs.
Send an Inquiry