Rough Terrain Crane
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This page explains how Jib Extension 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.
A telescoping or attachable section that extends the main boom of a rough terrain crane to increase its reach and lifting height.
Technical details and manufacturing context for Jib Extension
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Load Capacity | 5–30 t | At maximum extensionISO 4305 |
| Extension Length | 3–12 m | From base boom tip |
| Total Extended Length | 10–40 m | Base boom plus extension |
| Boom Angle Range | 0–80 ° | Relative to horizontal |
| Operating Pressure | 20–35 MPa | Hydraulic system |
| Material Grade | Q690D | High-strength steelGB/T 1591 |
| Weight | 500–3000 kg | Depends on length |
| Operating Temperature | -20–50 °C | Below -20°C use low-temp steel |
| Tensile Strength | 690–770 MPa | For Q690DGB/T 1591 |
| Yield Strength | ≥690 MPa | MinimumGB/T 1591 |
| Surface Treatment | Sa2.5 | Blast cleaning before paintingISO 8501-1 |
| Paint Thickness | 80–120 μm | Dry film thicknessISO 19840 |
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 Jib Extension.
This component is essential for the following industrial systems and equipment:
| pressure: | N/A (mechanical component) |
| other spec: | Max wind speed: 20 m/s during operation, 40 m/s when stowed |
| temperature: | -20°C to +50°C |
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.
Manufacturer profiles associated with Jib Extension.
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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The jib extension increases the crane's reach and lifting height by extending the main boom, allowing it to lift loads at greater distances and heights, which is essential for off-road applications on uneven surfaces.
It can be deployed either by telescoping out from the main boom or by being attached as a separate section. Hydraulic cylinders or manual pin connections control the extension and retraction.
High-strength steel and alloy steel are commonly used, with material grades such as Q690D, which provide the necessary structural integrity for heavy lifting.
Relevant standards include ISO 4305 for rated load capacity, GB/T 1591 for material grade and tensile/yield strength, ISO 8501-1 for surface treatment, and ISO 19840 for paint thickness. These are verification references, not proof of certification.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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