Generally speaking, the working temperature range of electric stage hoists with overload protection is -20°C to +40°C. However, different brands and models may vary. For example, some products can operate in an environment ranging from -15°C to +65°C.
If the ambient temperature exceeds the above range, it may have adverse effects on the hoist's motor, transmission components, etc., leading to performance degradation, shortened service life, or even safety hazards. For instance, excessively low temperatures may thicken the lubricating oil, affecting transmission efficiency and causing instability in electrical components; excessively high temperatures may overheat the motor, accelerate the aging of insulating materials, reduce the motor's service life, or even trigger motor failures.
Practical Application Cases:
- Low-temperature scenario:
In the stage project of Harbin Ice and Snow World, JDT low-temperature hoists (-35°C to +60°C) were used. With electric heating insulation covers, they successfully hoisted a 5-ton ice sculpture at -25°C, and the overload protection system had zero malfunctions.
- High-temperature scenario: A venue at the Dubai World Expo used Jieshi high-temperature hoists. In an environment of +55°C, when hoisting LED screens, the equipment operated continuously for 30 days without overheating failures, thanks to built-in cooling fans and intelligent temperature control systems. When selecting and using electric stage hoists with overload protection, it is necessary to carefully review the product manual, choose appropriate models based on the actual working ambient temperature, and take necessary environmental control measures to ensure the safe and stable operation of the equipment.
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