THD-280 Horizontal Directional Drilling Rig for Large-Diameter
Trenchless Projects
Powerful. Precise. Built for Challenging Trenchless Projects.
SINOCOREDRILL’s THD-280T Horizontal Directional Drilling Rig is a
state-of-the-art HDD system engineered to meet the demands of
large-diameter underground pipeline installations in urban,
industrial, and cross-country infrastructure. Designed with high
thrust, torque, and intelligent control features, the THD-280T is
built for challenging geological formations and long-distance
trenchless projects.
Key Technical Specifications
Rated Torque: 65,000 Nm
Max Pullback Force: 2800 kN
Max Thrust Force: 2800 kN
Rotational Speed: 0–100 rpm (stepless, 2-speed adjustable)
Diesel Engine Power: 390 kW @ 2200 rpm
Drill Rod Length: 6 meters
Main Spindle Through-Hole Diameter: 76 mm
Drive System: Rack and pinion
Hydraulic System: Fully automatic, load-sensitive
Control Mode: Integrated operation console with real-time
monitoring
High Performance in Demanding Conditions
With a rated torque of 65,000 Nm, the THD-280T delivers the
rotational strength needed to drill through dense rock layers,
hard-packed clay, gravel, and mixed ground. Its 2800 kN of thrust
and pullback force ensures that long crossings—whether beneath
rivers, highways, or densely built urban areas—are executed
efficiently and with precision.
The two-stage variable rotation control system provides smooth
power delivery and precise direction control, allowing operators to
adapt easily to real-time drilling conditions. This makes the
THD-280T ideal for directional boring tasks in oil and gas
pipelines, power cable conduits, water supply lines, and fiber
optic installations.
Smart Engineering for Operator Efficiency
Operator safety and control are at the core of the THD-280T design.
The fully enclosed operator cabin is equipped with an intuitive
control panel, digital monitoring instruments, and an ergonomic
layout for long shifts. All operational data—such as torque,
pressure, pullback force, and rotation speed—are displayed in
real-time.
A hydraulic automatic rod loader is available as an option,
reducing labor intensity and speeding up pipe handling. The 6-meter
drill rod design further enhances efficiency by reducing rod change
frequency and minimizing downtime.
Robust Structure and Reliable Components
The THD-280T features a durable rack-and-pinion drive system,
offering superior resistance to wear and maintaining high
positioning accuracy. The machine base is mounted on a reinforced
steel track platform, enabling it to maneuver easily across varied
terrain conditions, including muddy, rocky, and sloped construction
sites.
The main spindle with a 76mm through-hole provides generous
clearance for mud flow and tooling options. This allows for
seamless integration with a wide range of downhole tools and fluid
management systems. The rig is also compatible with
industry-standard drill pipe threads and HDD accessories.
Integrated Mud and Circulation System
To support long-distance trenchless drilling, the THD-280T can be
paired with a complete mud mixing and recycling system. These units
are engineered to maintain consistent fluid pressure and remove
cuttings efficiently, protecting the borehole walls and minimizing
drilling resistance.
Advanced filtration systems help extend the service life of pumps
and valves, while intelligent flow control reduces waste and
environmental impact. For soft or collapsible formations, optional
drilling additives and polymers can be integrated for added
stability.
Applications Across Multiple Sectors
The THD-280T HDD rig is suited for a wide variety of trenchless
applications, including:
Municipal pipeline crossings
(water, gas, sewage)
Electrical and telecommunication conduits
Oil & gas pipeline installations
River and highway crossings
Urban infrastructure expansion
Industrial site connectivity
It is especially useful in projects requiring long-distance
horizontal boring, high load capacity, or installations in
sensitive or congested environments where open-cut excavation is
not feasible.
Built for Global Standards and Longevity
SINOCOREDRILL designs and manufactures its HDD rigs under strict
quality control and international certification. The THD-280T meets
rigorous safety, durability, and performance standards, ensuring
long service life and minimal maintenance costs. Its modular design
also makes field servicing more accessible and efficient.
Spare parts, technical support, and training services are readily
available from our global service network, with special coverage in
Southeast Asia, the Middle East, and Latin America.
Why Choose the THD-280T?
Proven performance in demanding trenchless environments
High-strength, high-precision structural design
Intelligent hydraulic and control system
Customizable with rod loaders, mud units, and automation kits
Backed by SINOCOREDRILL’s professional support team
