SINOCOREDRILL recently launched its THD-80T crawler horizontal directional drilling rig (HDD rig). Built on rotary drilling technology and compatible with high-pressure water jet drilling and mud motor drilling processes, this medium HDD rig works efficiently in clay, subclay, silt and similar strata. It delivers reliable equipment solutions for trenchless pipeline installation under roads, railways, rivers, airport runways and buildings.
The THD-80T can achieve a maximum reaming diameter of 1000 mm, supporting steel pipes, PVC, PE and PP pipes. It is widely used for water, gas, telecom and other underground utility crossing projects. The main unit weighs 19,500 kg with standard dimensions of 9900×2550×2670 mm. The body can be customized to a narrower profile for container shipment for overseas delivery.
Power and hydraulic systems form the core advantages of the THD-80T. It is equipped with a QSC8.3-C300 diesel engine rated at 221 kW. The spindle delivers rated torque of 32,000 N·m, with maximum pullback force of 1500 kN and maximum feed force of 750 kN. The carriage stroke reaches 5300 mm, and carriage speed ranges from 0 to 40 m/min. Major hydraulic components are sourced from world-renowned brands including DANFOSS, POCLAIN and REXROTH. The rotary, push-pull and power assist systems work together to maintain stable performance in difficult ground conditions. The mud pump provides flow rate of 850 L/min. The crawler travel speed is 0~3.0 km/h, entry angle 8~20°, and gradeability up to 30°, delivering strong site mobility.
For harsh working environments, THD-80T can operate between -15℃ and 40℃, at altitudes up to 4500 m. The hydraulic tank holds 500 L hydraulic oil. L-HM68 anti-wear hydraulic oil is recommended for ambient temperature above 0℃ and L-HM46 for below 0℃. The 24V electrical system adopts DANFOSS MC024 controller for advanced control. Important note: The ECU module must be disconnected before any welding work on the rig to avoid ECU burnout.
SINOCOREDRILL specializes in R&D and manufacturing of trenchless drilling equipment, with products exported to Africa, Southeast Asia, South America and other global markets. As a key medium-duty model, THD-80T balances high power, robust reliability and convenient containerized transport. It serves municipal and water crossing projects worldwide and enriches SINOCOREDRILL’s HDD product portfolio to help global contractors complete trenchless pipeline projects efficiently.
