The motor power of an explosion-proof electric hoist is determined by operational requirements, environmental conditions, and safety standards. Key factors include:

1. Load Capacity

Rated Load: Directly proportional to motor power. Heavier loads require more torque and power to lift.

Duty Cycle: Frequent lifting (e.g., 60% vs. 40% duty cycle) demands higher power to avoid overheating.

2. Lifting Speed & Height

Speed: Faster lifting speeds need more power.

Height: Taller lifts may require motors optimized for continuous operation.

3. Explosion-Proof Rating

Zone/Division Classification:

Zone 1/21 (gas) or Zone 22 (dust) dictates motor design (e.g., Ex d flameproof vs. Ex e increased safety).

Higher-risk zones may limit motor options, indirectly affecting power choices.

Temperature Class (T1–T6): Motors must match ambient temperatures (e.g., T3 for 200°C environments).

4. Environmental Conditions

Ambient Temperature: Extreme heat/cold affects motor efficiency and cooling.

Corrosive Atmospheres: Requires motors with special coatings or materials, which may influence power ratings.

5. Safety Features

Braking Systems: Heavy-duty brakes or dual brakes may require more power to engage smoothly.

Overload Protection: Sensors or clutches add to the motor’s workload.

6. Control Systems

Variable Frequency Drives (VFDs): Allow precise speed control but may require higher initial power ratings.

Remote/Automated Operation: Complex controls may demand motors with higher efficiency.

7. Standards Compliance

ATEX, IECEx, or NEC: Compliance often restricts motor designs to certified models, which may have fixed power ranges.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment