Segment Erector
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This page explains how Erector Arm/Boom is classified within Other Transport Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
Hydraulic or mechanical arm used to lift, position, and install tunnel segments during shield tunneling operations.
Technical details and manufacturing context for Erector Arm/Boom
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Lifting Capacity | 5–20 t | Maximum load at full extension |
| Working Radius | 3–8 m | Horizontal reach from pivot |
| Operating Pressure | 25–35 MPa | Hydraulic system pressure |
| Rotation Angle | ±180 ° | Full rotation capability |
| Positioning Accuracy | ±5 mm | At end effector |
| Operating Temperature | -20–50 °C | Ambient range |
| Ingress Protection | IP54–IP65 | Dust and water resistanceIEC 60529 |
| Material Grade | Q345B | High-strength steelGB/T 1591 |
| Weight | 2–8 t | Dry weight |
| Power Supply | 380–690 V AC | Three-phaseIEC 60038 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | Up to 350 bar (typical hydraulic system max, varies by design) |
| flow rate: | 50-200 L/min (hydraulic flow range for standard operations) |
| temperature: | -20°C to +60°C (operational range, may require special fluids below -10°C) |
| lifting capacity: | 5-50 tons (typical range for tunnel segment installation) |
| slurry concentration: | Up to 40% solids by weight (for slurry shield applications) |
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.
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The lifting capacity at full extension typically ranges from 5 to 20 tonnes, but this is a reference range. The exact capacity depends on the specific model and configuration, so you must verify with the manufacturer for your application.
The arm is commonly made from high-strength steel or alloy steel. A material grade such as Q345B may be specified, referencing GB/T 1591. Always confirm the material grade and standards with the supplier for your specific unit.
The arm is controlled via hydraulic or electric actuators that allow movement in multiple axes. Operators use a control panel or remote to command movements, and sensors provide feedback for precise positioning. The system achieves positioning accuracy of ±5 mm at the end effector.
The arm is designed for ambient temperatures from -20°C to 50°C and has ingress protection rated IP54 to IP65 per IEC 60529. However, these are reference values; you should confirm the environmental ratings for your specific model with the manufacturer.
This component is essential for the following industrial systems and equipment:
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