This page explains how Tunnel Boring Machine is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A large mechanized excavation system used to bore tunnels through various ground conditions.
Technical details and manufacturing context for Tunnel Boring Machine
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| DiameterRequired | 3.5–15 meters | The nominal diameter of the tunnel to be excavated. |
| Maximum ThrustRequired | 20000–80000 kN | The total forward force the machine can exert to advance. |
| Cutterhead TorqueRequired | 3000–15000 kNm | The rotational force applied to the cutting head. |
| Advance RateRequired | 20–80 meters per hour | Typical rate of forward progress during excavation. |
| Total Installed PowerRequired | 1000–5000 kW | The combined power rating of all motors and hydraulic systems. |
| Operating Temperature | -20–50 °C | For hydraulic systems |
| Cutterhead Speed | 0–10 rpm | Variable speed |
| Cutterhead Power | 500–3000 kW | Proportional to torque |
| Machine Weight | 500–3000 t | Including backup systems |
| Machine Length | 50–150 m | Including trailing gear |
| Minimum Curve Radius | 150–500 m | Depends on machine design |
| Cutterhead Drive Type | Electric or hydraulic | Electric for efficiency, hydraulic for torque |
| Shield Type | Earth pressure balance or slurry | Select based on ground conditions |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Tunnel Boring Machine.
| pressure: | Up to 10 bar (face pressure), 6 bar (annular grouting) |
| flow rate: | 500-2000 m³/h (slurry systems), 100-500 m³/min (ventilation) |
| temperature: | 0°C to 40°C (operational ambient) |
| slurry concentration: | 30-45% solids by weight (for slurry TBMs) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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According to the directory reference, the nominal diameter of the tunnel to be excavated typically ranges from 3.5 to 15 meters. However, the exact diameter depends on the specific project requirements and the machine model. Always confirm the precise diameter with the manufacturer for your application.
In soft ground, TBMs often use an Earth Pressure Balance (EPB) or slurry shield system. These systems apply pressure to the tunnel face to prevent ground collapse. The selection of shield type depends on ground conditions, and the machine's operating parameters must be verified with the manufacturer.
Key parameters include maximum thrust (20,000–80,000 kN), cutterhead torque (3,000–15,000 kNm), advance rate (20–80 meters per hour), and total installed power (1,000–5,000 kW). These values are reference ranges; the actual specifications must be confirmed with the manufacturer for the specific model.
Common maintenance signals include abnormal vibrations, increased power consumption, reduced advance rate, or unusual wear on cutting tools. Regular inspection of cutting tools and hydraulic systems is essential. Always follow the manufacturer's maintenance guidelines and verify any issues with qualified personnel.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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