Zero-Power Permanent Magnetic Clamping for Heavy Steel & Forging Rigging
SRE’s High-Tonnage Neodymium Magnetic Lifters provide zero-power permanent magnetic clamping for heavy steel plates, forging blocks, and machine dies. Featuring an ergonomic safety lever and a certified 3.5:1 breakaway safety factor, they ensure rapid, slip-free rigging with zero electrical power required.
Frequently Asked Questions: High-Tonnage Magnetic Lifter
Technical clarifications on permanent neodymium magnetic clamping and breakaway safety standards.
Q1. Does this magnetic lifter require an external electrical power supply?
No. SRE magnetic lifters use ultra-high energy permanent rare-earth NdFeB (Neodymium-Iron-Boron) magnets. Clamping and declamping are actuated purely through an ergonomic manual lever with an automatic mechanical safety locking latch.
Q2. What is the certified breakaway safety factor of SRE magnetic lifters?
All SRE permanent magnetic lifters are 100% factory proof-tested with a certified 3.5:1 breakaway safety factor, meaning a 1,000 kg rated lifter holds up to 3,500 kg of breakaway force on clean mild steel test beds.
Q3. Can the magnetic lifter handle round pipes and cylindrical forgings?
Yes. The bottom pole shoes feature a precision V-slot profile engineered to grip both flat steel plates and round steel bar stock safely.
Q4. What is the minimum steel plate thickness required for full magnetic hold?
Optimal magnetic saturation depends on lifter tonnage, typically ranging from 15 mm to 40 mm minimum plate thickness for 100% rated lifting capacity.
Need Heavy-Duty Magnetic Lifters for Your Steel or Forging Plant?
Send us your maximum plate thickness, die weight, and material grades. SRE’s rigging engineering team will provide product recommendations, load factor charts, and factory direct quotes.