Guide Rpm
38r/Min
Main Jacking Cylinder Thrust
1000*2kn
Main Jacking Cylinder Stroke
650*2
Mud Discharge Jacking Torque
11500
Mud Discharge Jacking Rpm
23r/Min
Jacking Speed
40-70mm/Min
Weight
2300kg
Transport Package
Nude Packing
Specification
Diameter: 300mm-600mm
HS Code
8430313000
Production Capacity
100 Sets Per Year
The auger boring machine is suitable for small pipe diameters (Φ 300, Φ 400, Φ 500, Φ 600), sewer pipelines, separate rainwater pipelines, and thermal pipeline casing. It is highly efficient for steel and semi-steel pipeline laying. Its compact design allows construction within a circular working shaft with a minimum diameter of 2500mm.
- High Efficiency: Small volume with strong power and large thrust. Features fast jacking speeds and low requirements for operator skills.
- Precision: Maintains a horizontal straightness of ±30mm throughout the jacking process, reducing construction costs.
- Compact Footprint: Requires minimal foundation shaft space; suitable for roads as narrow as 3 meters.
- Eco-Friendly: Low environmental pollution. Produces wet mud or dry soil rather than liquid slurry, simplifying city soil disposal.
- Versatility: Applicable to various soil types including soft soil, clay, sand, gravel, hard soil, and backfill.
⚙️ Three-Stage Construction Method
Step 1: Guide Bit Breakthrough
A bevel guide bit with an internal target is used. A laser theodolite in the working shaft monitors the target to control direction. By rotating the bit or adjusting its orientation when stopped, the operator ensures the planned axle is maintained until it reaches the receiving shaft.
Step 2: Diameter Expansion & Conduit Installation
A variable diameter pipe is installed on the guide rod. Spiral casings and conveying pipes are pushed in sequentially. Once the transition pipe breaks through, the system is ready for sand discharge during the final excavation phase.
Step 3: Submersible Shield Excavation
The submersible shield machine is connected to the spiral conveyor. It extends the bore to the final required size while cutting sand is discharged through the pipe. Lubricating mud or water can be injected to soften soil and reduce friction during propulsion.
❓ Frequently Asked Questions
What pipe diameters can this machine handle?
The equipment is designed for small diameters ranging from 300mm to 600mm, making it ideal for urban sewage and conduit projects.
What is the minimum working shaft size required?
One of the main advantages is its compact size; it can operate in a working shaft with a minimum diameter of only 2.5 meters.
Is this boring machine suitable for rocky or hard soil?
Yes, it is versatile and applicable to soft soil, clay, sand, gravel, and hard soil, as well as backfill environments.
How does the machine ensure boring accuracy?
It utilizes a laser theodolite and a target-equipped guide bit to maintain a horizontal straightness accuracy of ±30mm.
What are the environmental advantages of this method?
Unlike traditional methods, it does not produce liquid mud. It discharges wet or dry soil, which reduces pollution and can even be reused for backfill.
What is the jacking speed of the equipment?
The machine offers a productive jacking speed of 40-70mm per minute depending on soil conditions.
Mintrix Excavator
