Trenchless Drilling Machine

Product Specifications

Technical details and manufacturing context for Trenchless Drilling Machine

Definition

A trenchless drilling machine is a sophisticated piece of construction equipment used for the installation of underground utilities such as water pipes, gas lines, fiber optic cables, and sewer conduits. It employs various trenchless technology methods, primarily horizontal directional drilling (HDD), to create a bore path underground. This process minimizes surface disruption, reduces environmental impact, and is often faster and more cost-effective than traditional open-cut trenching methods, especially in urban areas, under roadways, rivers, or other obstacles. The machine is typically powered by a diesel engine with a power rating ranging from 150 to 600 kW, and it exerts a maximum thrust/pullback force of 500 to 2000 kN, with a maximum torque of 20 to 80 kN-m. The spindle speed can vary from 0 to 120 rpm, allowing for precise control during drilling. The maximum drilling length for a single run is between 300 and 1500 meters, and the machine can install product pipes with diameters ranging from 200 to 1200 mm. The mud pump delivers drilling fluid at a flow rate of 200 to 1000 L/min, and the mud tank capacity ranges from 500 to 5000 liters. The machine operates within a temperature range of -20 to 50 °C, and its ingress protection rating is IP54 to IP65, suitable for dusty or wet environments. The machine weight ranges from 10 to 50 tons, affecting transport and site setup. Key components are made from high-strength steel alloy and tungsten carbide. The operating pressure is specified as 1.0 to 1.6 MPa per but this is a reference range; verify with the manufacturer. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The machine operates on the principle of horizontal directional drilling (HDD). It begins by drilling a small-diameter pilot bore along a predetermined, engineered path from a launch pit to a reception pit. A drilling fluid (bentonite slurry) is pumped through the drill string to cool the drill bit, stabilize the borehole, and carry cuttings back to the surface. Once the pilot bore is complete, the drill bit is replaced with a backreamer. The backreamer is pulled back while rotating, simultaneously enlarging the borehole to the required diameter and pulling the new product pipe (e.g., HDPE, steel) into place behind it.

Common Materials

High-Strength Steel Alloy, Tungsten Carbide

Technical Parameters

Parameter	Typical range	Notes & selection driver
Maximum Thrust/Pullback ForceRequired	500–2000 kN	The maximum axial force the machine can exert to push the drill string forward or pull the product pipe back.
Maximum TorqueRequired	20–80 kN-m	The maximum rotational force applied to the drill string to turn the drill bit or backreamer.
Spindle SpeedRequired	0–120 rpm	The rotational speed range of the drill string.
Maximum Drilling LengthRequired	300–1500 m	The maximum achievable bore length for a single drill run.
Maximum Product Pipe DiameterRequired	200–1200 mm	The largest diameter of pipe or conduit the machine can install.
Mud Pump Flow RateRequired	200–1000 L/min	The flow rate capacity of the drilling fluid (mud) pump.
Power Rating	150–600 kW	Engine power determines overall capability
Mud Tank Capacity	500–5000 L	Larger tank reduces refill frequency
Operating Temperature	-20–50 °C	Outside this range performance may degrade
Ingress Protection Rating	IP54–IP65	Higher rating for dusty/wet environmentsIEC 60529
Machine Weight	10–50 t	Affects transport and site setup

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Power Unit
Provides hydraulic and/or electrical power to all machine systems, typically powered by a diesel engine.

Material: Steel housing with internal combustion engine and hydraulic components.
Carrier/Chassis
The mobile platform (tracked or wheeled) that provides stability, mobility, and support for the drilling assembly.

Material: High-tensile steel frame.
Drill Head/Rotary Drive
The assembly that generates torque and thrust, rotating and pushing/pulling the drill string.

Material: Forged steel gears and housing, hardened steel spindle.
Drill Pipe Magazine/Rack
Stores and automatically feeds/adds sections of drill pipe to the string as drilling progresses.

Material: Steel frame with mechanical handling arms.
Mud Mixing and Pumping System
Mixes bentonite or polymer drilling fluid and pumps it under high pressure through the drill string to the drill bit.

Material: Steel tanks, pumps, valves, and piping.
Operator Control Console
The interface from which the operator controls all machine functions, monitors drilling parameters, and tracks the bore path.

Material: Electronic components housed in a protective steel or polymer cabinet.
Tracking/Locating System
A non-magnetic walkover or gyro-based system used to track the position and depth of the drill head in real-time.

Material: Electronic sensors, handheld receiver, display unit.
Drill Bit
Cuts the pilot bore at the head of the string.
Backreamer
Enlarges the pilot bore on pullback and drags the product pipe in.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Trenchless Drilling Machine.

Manufacturers of Trenchless Drilling Machine

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Jiangsu Goodeng Heavy Machinery Technology Co., Ltd.

Yancheng, Jiangsu, CN

Founded 2002500+ staff100,000 m²+ (China), 80,000 m²+ (Thailand)

National High-tech Enterprise China Well-known Trademark

Also makes: Horizontal Directional Drilling Rig, Agitator System, Rotary Drilling Rig and 3 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the typical maximum thrust/pullback force of a trenchless drilling machine?

The maximum thrust/pullback force typically ranges from 500 to 2000 kN, depending on the model. This force is used to push the drill string forward or pull the product pipe back. Always verify the exact value for the specific machine with the manufacturer.

What is the maximum drilling length achievable in a single run?

The maximum drilling length for a single run is typically between 300 and 1500 meters. This depends on soil conditions, machine power, and other factors. Confirm the actual capability with the supplier.

What types of pipes can be installed using this machine?

The machine can install product pipes with diameters ranging from 200 to 1200 mm, including HDPE, steel, and other materials. The specific diameter range depends on the machine model and reamer size.

What is the operating pressure range for the drilling fluid system?

The operating pressure is specified as 1.0 to 1.6 MPa. This is a reference range; the actual operating pressure may vary based on the application and must be verified with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 300 bar
flow rate:	50-500 L/min
temperature:	-10°C to 50°C
slurry concentration:	Up to 40% solids by weight

Product Specifications

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