Lattice Boom Crane
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This page explains how Lattice Boom 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 structural component of a lattice boom crane consisting of interconnected steel members forming a truss structure for load lifting and positioning.
Technical details and manufacturing context for Lattice Boom
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Lifting Capacity | 50–1200 t | Capacity at minimum radiusISO 4305 |
| Boom Length | 12–120 m | Total length including jib |
| Lattice Section Size | 1.2–3.0 m | Main chord spacing |
| Chord Material Grade | Q345–Q690 | Yield strength 345–690 MPaGB/T 1591 |
| Lacing Material Grade | Q235–Q420 | Yield strength 235–420 MPaGB/T 1591 |
| Tensile Strength | 470–940 MPa | Depends on material gradeGB/T 1591 |
| Yield Strength | 235–690 MPa | Minimum specified valueGB/T 1591 |
| Elongation at Break | 18–22 % | Minimum for structural steelGB/T 1591 |
| Weld Quality Grade | B–C | Ultrasonic testing requiredGB/T 11345 |
| Surface Treatment | Sa2.5–Sa3 | Blast cleaning before paintingISO 8501-1 |
| Paint Thickness | 80–120 μm | Dry film thicknessISO 19840 |
| Operating Temperature | -20–50 °C | Below -20°C use low-temp steel |
| Weight | 5–80 t | Per boom section |
| Design Life | 20–30 years | Under normal operating conditionsISO 4301-1 |
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 Lattice Boom.
This component is essential for the following industrial systems and equipment:
| pressure: | N/A (structural component, not pressure vessel) |
| other spec: | Max wind speed: 20 m/s (operational), 40 m/s (survival) |
| temperature: | -40°C to +50°C (operational ambient range) |
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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Lattice booms are typically made from high-strength steel or alloy steel. Chord materials are often Q345–Q690, and lacing materials are Q235–Q420, as per GB/T 1591. These grades provide the necessary strength and durability for lifting applications.
The rated lifting capacity at minimum radius ranges from 50 to 1200 tonnes, as per ISO 4305. However, the actual capacity depends on the specific boom configuration, crane model, and operating conditions. Always consult the manufacturer's load charts.
Key standards include ISO 4305 for rated lifting capacity, GB/T 1591 for material grades, GB/T 11345 for weld quality, ISO 8501-1 for surface preparation, and ISO 19840 for paint thickness. These standards serve as verification references; compliance must be confirmed with the manufacturer.
The design life is typically 20–30 years under normal operating conditions, as per ISO 4301-1. Actual service life depends on usage, maintenance, and environmental factors. Regular inspections are essential to ensure continued safe operation.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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