YSTP4380 Earth Pressure Balance Micro Shield Tunneling Machine

Product Overview

The YSTP4380 Micro Shield Tunneling Machine is an advanced earth pressure balance rock composite shield machine developed for trenchless underground tunnel construction in complex geological environments.

This micro tunneling machine integrates intelligent shield tunneling technology, high-strength cutterhead systems, and optimized wear-resistant sealing structures to achieve stable and efficient excavation performance.

As a professional Micro Shield tunneling machine and MTBM solution, the equipment is suitable for municipal underground infrastructure, utility tunnels, pipeline crossings, subway auxiliary tunnels, and trenchless urban construction projects.

The machine demonstrates excellent adaptability in gravel, sand, clay, mixed formations, and hard rock geological conditions while maintaining reliable tunneling stability and operational efficiency.

Advanced Shield Tunneling Technology

The YSTP4380 Earth Pressure Balance Shield Machine adopts advanced shield tunneling technology for safe and efficient underground excavation operations.

With an excavation diameter of 4.38 meters and a total machine length of approximately 80 meters, the equipment is suitable for small and medium-sized underground tunneling projects requiring flexible construction capability.

The maximum propulsion speed reaches 80 mm per minute, while the minimum turning radius of 90 meters improves operational flexibility in urban underground construction environments.

The trenchless tunneling method effectively reduces road excavation, surface settlement, environmental disturbance, and traffic impact during municipal engineering construction.

This micro shield tunneling machine has successfully completed more than 2 kilometers of underground excavation in complex geological conditions.

Optimized Wear Resistance Design

To improve long-term operational reliability, the YSTP4380 Micro Tunneling Machine adopts optimized wear-resistant designs for key bearings, sealing systems, and cutterhead components.

Based on actual geological conditions including gravel, sand layers, clay, and rock formations, the equipment enhances abrasion resistance and sealing stability during continuous tunneling operations.

The reinforced bearing structure effectively improves service life and reduces maintenance frequency during long-distance underground excavation projects.

The optimized sealing system maintains stable earth pressure balance performance and improves construction safety under complex underground conditions.

These advanced design improvements ensure reliable tunneling efficiency and stable operational performance for trenchless construction applications.

Technical Performance and Features

● Earth pressure balance shield tunneling system

● Excavation diameter of 4.38 meters

● Total machine length of approximately 80 meters

● Total machine weight of approximately 350 tons

● Maximum propulsion speed of 80 mm/min

● Minimum turning radius of 90 meters

● Optimized wear-resistant bearing structure

● High-performance sealing system design

● Stable tunneling capability in mixed geological conditions

● Suitable for gravel, sand, clay, and rock formations

● Intelligent tunneling monitoring and control system

● Efficient trenchless underground excavation capability

The Micro Shield Tunneling Machine combines advanced shield technology with reliable operational performance for complex urban underground construction projects.

This MTBM system effectively improves tunneling efficiency while reducing construction risks and minimizing environmental impact.

Technical Specifications

Applications

● Municipal underground utility tunnel construction

● Urban trenchless infrastructure projects

● Subway auxiliary tunnel excavation

● Underground pipeline crossing engineering

● Mixed soil and rock formation tunneling

● Shield tunnel boring projects

● Micro tunneling and MTBM construction

FAQ

What is the YSTP4380 Micro Shield Tunneling Machine used for?

This micro tunneling machine is mainly used for trenchless underground excavation, municipal utility tunnel construction, subway auxiliary tunnels, and underground infrastructure projects.

What geological conditions is the machine suitable for?

The equipment is suitable for gravel, sand, clay, mixed formations, and hard rock geological conditions.

What are the advantages of the earth pressure balance system?

The earth pressure balance system improves tunneling stability, reduces ground settlement, and enhances construction safety during underground excavation.

Why is wear resistance optimization important?

Optimized wear-resistant bearings and seals improve machine durability, extend service life, and reduce maintenance costs during long-distance tunneling operations.

Does the machine support trenchless construction?

Yes, the equipment adopts advanced trenchless tunneling technology to minimize road excavation and reduce environmental impact.

Get Price & Technical Solution

Looking for a reliable micro shield tunneling machine manufacturer for complex underground construction projects?

● Customized micro tunneling solutions

● Professional trenchless construction support

● Advanced earth pressure balance shield technology

● Fast quotation within 24 hours

Micro Tunneling Machine（MTBM）

micro tunneling machine (MTBM) for Trenchless Pipe Jacking Projects

The Micro tunneling machine (MTBM) is a highly advanced trenchless construction solution designed for precise underground pipeline installation. As a core type of Pipe Jacking Machine, MTBM systems are widely used in municipal engineering, sewer construction, and urban infrastructure projects.

Unlike traditional excavation methods, micro tunneling technology allows pipelines to be installed with minimal surface disruption. This makes it the preferred solution for projects in densely populated areas where traffic, buildings, and environmental impact must be carefully controlled.

Our micro tunneling machines are engineered to deliver high precision, efficiency, and safety. Equipped with advanced guidance systems and automated control, they ensure accurate alignment and stable operation even in complex ground conditions.

Key Advantages

● High precision laser guidance system

● Minimal ground settlement

● Suitable for various soil conditions

● Fully remote-controlled operation

● Reduced environmental impact

Applications

● Sewer and drainage systems

● Water supply pipelines

● Urban underground utility construction

● Metro and railway projects

Why Choose Our MTBM

With years of experience in pipe jacking machine manufacturing, we provide reliable and customized micro tunneling solutions for global engineering contractors.