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Advanced HDD Drilling Machines for Trenchless Construction

High-performance Horizontal Directional Drilling Rigs engineered by NANJING STETON ENGINEERING MACHINERY CO., LTD — delivering precision, power, and reliability across global infrastructure projects.

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About Steton Machinery

Founded in 2017, Steton Machinery is a leading innovator in Horizontal Directional Drilling (HDD) technology, specializing in the research, development, manufacturing, sales, and service of advanced trenchless drilling equipment.

Our core product lines include the "S" series of Horizontal Directional Drilling Machines, "SE" series Hybrid Electric Rigs, "SEP" Electric Mud Pump Stations, and "SEC" Range-Extender Hybrid Electric Rigs — all engineered for maximum efficiency and durability.

150+ units produced annually
Advanced international management systems
Global recognition for quality and innovation
HDD Machine Drilling Rig Mud System Rig Detail

Our HDD Drilling Machines

Precision-engineered horizontal directional drilling rigs designed for maximum performance, reliability, and efficiency in trenchless construction applications.

S180 HDD Machine

S180 HDD Machine

High-torque drilling rig ideal for medium-distance utility installations with excellent maneuverability and control.

  • Thrust/Pullback: 180 kN
  • Rotation: 5,000 Nm
  • Application: Urban infrastructure
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S60 HDD Machine

S60 HDD Machine

Compact and versatile rig perfect for small to medium projects with limited access and tight working spaces.

  • Thrust/Pullback: 60 kN
  • Rotation: 2,000 Nm
  • Application: Residential & municipal
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S200A HDD Machine

S200A HDD Machine

Enhanced version with improved hydraulic efficiency and intelligent control systems for complex drilling paths.

  • Thrust/Pullback: 200 kN
  • Rotation: 5,500 Nm
  • Application: Medium to large crossings
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S350A HDD Machine

S350A HDD Machine

Heavy-duty rig built for long-distance, high-capacity drilling with advanced mud circulation and directional control.

  • Thrust/Pullback: 350 kN
  • Rotation: 8,000 Nm
  • Application: Major pipeline crossings
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S520 HDD Machine

S520 HDD Machine

Ultra-high-capacity rig designed for the most demanding trenchless projects with unmatched pulling force.

  • Thrust/Pullback: 520 kN
  • Rotation: 12,000 Nm
  • Application: Cross-river, cross-road
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S450 HDD Machine

S450 HDD Machine

Balanced performance rig offering high power in a compact footprint, ideal for diverse terrain conditions.

  • Thrust/Pullback: 450 kN
  • Rotation: 10,000 Nm
  • Application: Industrial & commercial
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SE Series Hybrid Rig

SE Series Hybrid Electric Rig

Eco-friendly hybrid power solution reducing fuel consumption and emissions without sacrificing performance.

  • Power Type: Range-Extender Hybrid
  • Emissions: Up to 40% reduction
  • Efficiency: Intelligent energy recovery
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SEP Electric Mud Pump

SEP Electric Mud Pump Station

High-efficiency electric mud system providing stable flow and pressure for optimal drilling performance.

  • Flow Rate: Up to 350 L/min
  • Pressure: 12 MPa max
  • Drive: Fully electric, low noise
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Why Choose Steton HDD Machines?

Engineered with cutting-edge technology and built for real-world performance in the most challenging trenchless environments.

Smart Control Systems

Advanced directional guidance and real-time monitoring for precise bore path control.

Hybrid Power Options

Range-Extender Hybrid Electric Rigs reduce fuel costs and environmental impact.

Industrial Durability

Heavy-duty components and robust construction for long service life in harsh conditions.

Global Support

Comprehensive presales and after-sales technical assistance and training programs.

150+
Units Produced Annually
2017
Year Founded
50+
Countries Served
8
Product Series

Latest News & Insights

EVENT

Stetong's Debut in the Greater Bay Area

September 18, 2025

From September 4 to 6, 2025, the "6th Guangdong-Hong Kong-Macao Greater Bay Area Trenchless Technology Development Forum and Exhibition" concluded successfully at the Shenzhen World Exhibition and Convention Center. Stetong made a spectacular debut with its newly upgraded S800A Horizontal Directional Drilling Machine, showcasing next-generation trenchless innovation.

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TECH

Characteristics of Horizontal Directional Drilling

February 21, 2023

Directional drilling crossing construction will not hinder traffic, destroy green space and vegetation, affect the normal life and work order of shops, hospitals, schools and residents, and solve the interference of traditional excavation on the environment and public order.

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ENGINEERING

Structure of Horizontal Directional Drilling Rig

February 21, 2023

Horizontal directional drilling machines are composed of drilling system, power system, directional control system, mud system, drilling tools and auxiliary tools. Their integrated design ensures optimal performance in complex underground environments.

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Comprehensive Customer Support

Presales Assistance

Customized technical solutions to match your project requirements and site conditions.

Production Tracking

Real-time updates and production processing tables for complete transparency.

Operator Training

Comprehensive training programs to maximize equipment utilization and safety.

After-Sales Service

Rapid technical support and spare parts supply to minimize downtime.

Get in Touch

For product inquiries, technical support, or partnership opportunities, visit our official website to connect with the Steton team.

+86 18936863200
0001@njsteton.com
www.machinehdd.com
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