Luffing Jib Crane
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This page explains how Load Moment Indicator 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 safety device that monitors and displays the load moment (load × radius) of a luffing jib crane in real-time.
Technical details and manufacturing context for Load Moment Indicator
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Capacity | 5–500 t | Maximum load moment at minimum radius |
| Working Radius | 3–80 m | Range of boom radius for load moment calculation |
| Measurement Accuracy | ±5 % | Accuracy of load moment indication relative to actual value |
| Display Resolution | 0.1 t | Smallest increment shown on display |
| Supply Voltage | 9–36 V DC | Wide input range for various crane electrical systems |
| Power Consumption | ≤15 W | Maximum power consumption at nominal voltage |
| Operating Temperature | -40–85 °C | Full functionality within this range |
| Storage Temperature | -40–85 °C | Non-operating storage condition |
| Ingress Protection | IP65–IP67 | Dust-tight and protected against water jetsIEC 60529 |
| Relative Humidity | ≤95 % | Non-condensing |
| Sensor Type | Strain gauge | Load cell for force measurement |
| Output Signal | 4–20 mA | Analog output for remote monitoring |
| Weight | 2–15 kg | Depends on configuration and options |
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 Load Moment Indicator.
This component is essential for the following industrial systems and equipment:
| pressure: | N/A (electronic device) |
| other spec: | IP65/IP67 ingress protection, 24V DC power supply (±10%), 95% RH max non-condensing |
| temperature: | -20°C to +50°C (operating), -40°C to +70°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.
Manufacturer profiles associated with Load Moment Indicator.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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The primary function is to continuously calculate and display the load moment (load × radius) of a luffing jib crane, providing real-time warnings to prevent overloading and potential tipping.
Typical sensors include load cells (strain gauge type) on the hoist line to measure load weight, and angle or radius sensors on the jib to determine the horizontal distance from the pivot point.
The measurement accuracy is ±5% relative to the actual load moment value, as per the reference data. Verify the exact accuracy for the specific model with the manufacturer.
The indicator operates in temperatures from -40°C to 85°C, with non-condensing humidity up to 95%. It has an ingress protection rating of IP65–IP67 per IEC 60529, meaning it is dust-tight and protected against water jets.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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