Electromagnet vs Electro-Permanent Magnet (EPM)

A quick comparison to help you choose the smarter lifting solution.

1.Power Supply Requirement

Electromagnet: Requires continuous power to maintain magnetic force
EPM: Requires power only during magnetization/demagnetization

2. Safety

Electromagnet: Risk of load drop during power failure
EPM: Maintains grip even during power loss — fail-safe design

3. Energy Consumption

Electromagnet: High (constant energy use)
EPM: Ultra-low (only pulse current needed)

4. Maintenance Needs

Electromagnet: Prone to overheating and damage
EPM: No heat, no moving parts — minimal maintenance

5. Application Flexibility

Electromagnet: General-purpose lifting only
EPM: Ideal for steel plates, coils, pipes, and irregular laser-cut parts

6. Force Stability

Electromagnet: Magnetic force fluctuates with voltage
EPM: Consistent and stable force at all times

7. Operating Cost

Electromagnet: High (due to energy + maintenance)
EPM: Low (energy-efficient and long-lasting)

8. Smart Automation Compatibility

Electromagnet: Limited integration capability
EPM: Easily integrates with PLCs, sensors, and smart systems