Mechanical Hydraulic Water Well Drilling Rig ST 400

The Mechanical Hydraulic Water Well Drilling Rig ST 400 is a high-efficiency and cost-effective mechanical-hydraulic composite water well drilling rig.

Product overview

The Mechanical Hydraulic Water Well Drilling Rig ST 400 is a high-efficiency and cost-effective mechanical-hydraulic composite water well drilling rig, manufactured in strict accordance with international drilling machinery industry standards. Tailored for 400-meter medium-depth water well construction, this ST-400 model adopts a mature mechanical rotary matching hydraulic feeding and lifting composite transmission structure, combining the high stability of mechanical drive and the flexible controllability of hydraulic operation. It features strong rock-breaking capacity, stable drilling track and wide stratum adaptability, capable of efficiently completing water well drilling operations in soil layers, sand layers, weathered rock and medium-hard rock stratums. With compact overall structure, simple operation logic, low failure rate and convenient maintenance, the rig supports long-term continuous field operation. It is widely applicable for rural domestic water well construction, industrial water source well drilling, farmland irrigation well projects and shallow geological exploration, serving as an ideal economical and practical water well drilling solution for global civil water conservancy and small-scale engineering projects.

Max Water Well Drilling Depth400m
Rated Drilling DiameterDia. 110mm / Dia. 130mm / Dia. 150mm
Spindle Rotary Speed70-850r/min (Multi-speed Adjustable)
Max Spindle Torque3200N-m

Core innovative advantages and structural features

Optimized Mechanical-Hydraulic Composite Transmission

Adopts classic mechanical rotary drive to provide stable and powerful rotary torque, matched with precise hydraulic feeding and lifting system. It realizes stepless adjustment of drilling pressure and flexible lifting control, effectively avoiding the instability of full-mechanical rigs and high maintenance costs of full-hydraulic rigs. The composite structure balances construction efficiency and operational stability, perfectly adapting to medium-depth water well drilling working conditions.

Powerful Medium-depth Drilling Capacity

Equipped with enhanced heavy-duty spindle assembly and optimized power matching system, with strong rock-breaking performance and anti-jamming capability. It can stably drill through composite stratums such as dense soil, gravel and medium-hard weathered rock, effectively reducing drilling deviation, hole collapse and drill sticking risks. The stable output performance ensures high-quality wellbore forming for 400m medium-depth water wells.

Compact Integrated Skid-mounted Structure

The whole machine adopts integrated skid-mounted centralized layout with compact structural design and high overall rigidity. The optimized frame structure effectively resists drilling vibration and stratum impact, maintaining long-term operational stability. The integrated design simplifies on-site installation, debugging and migration procedures, realizing rapid project deployment and improving construction flexibility.

Low Operation Threshold & High Practicability

Features intuitive mechanical gear shifting and centralized hydraulic control system with simple operation logic, greatly reducing operator learning difficulty and on-site misoperation rate. The equipment is designed for civilian water conservancy scenarios, focusing on practicality and durability, suitable for various field construction teams with ordinary operation conditions.

Ultra-low Maintenance & Operating Cost

Adopts mature industrial-grade universal standard parts and simplified transmission structure with fewer vulnerable components and extremely low failure rate. All wearing parts have complete global supply channels with low replacement cost. The robust structural design reduces daily maintenance workload and long-term comprehensive operation investment.

Excellent Field Environmental Adaptability

Key load-bearing and moving components undergo wear-resistant, anti-rust and anti-corrosion treatment. The hydraulic system is equipped with dust-proof, leak-proof and wide-temperature adaptive modules. The rig can operate stably in high-temperature dry, low-temperature mild cold, windy dusty and humid rainy field environments, adapting to various outdoor rural and wild construction scenarios.

Technical specifications

Max Water Well Drilling Depth400m
Rated Drilling DiameterDia. 110mm / Dia. 130mm / Dia. 150mm
Spindle Rotary Speed70-850r/min (Multi-speed Adjustable)
Max Spindle Torque3200N-m
Max Lifting Force55kN
Hydraulic System Rated Pressure16MPa
Optional Power Configuration45kW Electric Motor / 58kW Diesel Engine
Overall Dimension (L x W x H)2800 x 1100 x 2100mm
Net Weight2200kg
Working Ambient Temperature-20C ~ +55C
Applicable StratumSoil layer, sand layer, gravel layer, weathered rock, soft and medium-hard rock

Application fields

  • Rural domestic water wells, centralized water supply wells and village water conservancy renovation projects
  • Farmland irrigation wells, orchard water supply wells and agricultural water conservancy supporting engineering
  • Industrial park water source wells, factory domestic water wells and municipal auxiliary water well projects
  • Shallow geothermal water well drilling, small hot spring exploration and civil geothermal supporting projects
  • Shallow engineering geological exploration, foundation detection and geotechnical investigation drilling
  • Remote area water well construction, drought resistance and water-saving emergency drilling projects

OEM and customized solution

Stratum Adaptation Performance Customization

Customize gear speed ratio and hydraulic output pressure for hard rock or gravel mixed stratums, match enhanced drilling tools to improve rock-breaking efficiency and well forming integrity.

Power System Matching Upgrade

Support electric motor and diesel engine power tuning and brand customization, adapting to different altitude environments, power supply conditions and construction intensity requirements.

Structural Optimization & Reinforcement

Optional overall anti-vibration reinforcement and multi-layer anti-corrosion coating for long-term outdoor humid and dusty field operation scenarios.

Auxiliary Function Expansion

Optional automatic feeding device and drilling depth counting module to reduce manual operation and improve construction intelligence level.

Full-cycle Turnkey Service

Provide personalized equipment painting, exclusive brand logo marking, dedicated water well drilling tool package and 24-hour on-site commissioning and professional after-sales technical support.

Contact and inquiry

Use the official contact information for model selection, specification discussion, and project inquiry.

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