Portal Crane
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This page explains how Gantry Structure 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.
The primary structural framework of a portal crane that spans the working area and supports the hoisting mechanism.
Technical details and manufacturing context for Gantry Structure
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Span | 10–40 m | Determines the working area width |
| Lifting Height | 6–30 m | Max hook height under the gantry |
| Rated Lifting Capacity | 5–100 t | Max safe working load |
| Working Class | A5–A8 | Duty cycle and service lifeISO 4301-1 |
| Max Wheel Load | 200–600 kN | Foundation and rail design |
| Hoisting Speed | 5–20 m/min | Affects cycle time |
| Trolley Travel Speed | 20–60 m/min | Cross-travel speed |
| Gantry Travel Speed | 10–40 m/min | Long-travel speed |
| Operating Temperature | -20–40 °C | Below -20°C requires cold-resistant steel |
| Power Supply | 380±10% V AC | Three-phase, 50 HzIEC 60038 |
| Main Beam Material | Q235B–Q345B | Yield strength 235–345 MPaGB/T 1591 |
| Overall Weight | 20–150 t | Affects transport and installation |
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 Gantry Structure.
This component is essential for the following industrial systems and equipment:
| pressure: | N/A (structural component, not pressure vessel) |
| other spec: | Max wind load: 150 km/h, Seismic rating: Zone 4, Corrosion protection: C5-M class |
| temperature: | -20°C to +50°C (operational), -40°C to +60°C (storage) |
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.
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.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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Gantry structures are typically made from structural steel or high-strength steel alloys. Common material grades include Q235B to Q345B, with yield strengths ranging from 235 to 345 MPa, as referenced in GB/T 1591. The choice depends on load requirements and environmental conditions.
The span (10–40 m) determines the working area width, while lifting height (6–30 m) is the maximum hook height under the gantry. These are selected based on the dimensions of the loads and the layout of the working area. Always verify with the manufacturer for your specific application.
The working class, per ISO 4301-1, indicates the duty cycle and expected service life of the crane. Classes A5 to A8 range from moderate to very heavy duty. Choose a class that matches your operational intensity to ensure reliability and longevity.
Signs such as visible cracks, excessive deflection, unusual noises during operation, or corrosion on load-bearing members indicate potential issues. Regular inspections should focus on welds, bolted connections, and areas prone to fatigue. If any anomalies are found, consult the manufacturer or a qualified engineer.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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