Field Notes from the Shop Floor: Choosing a Permanent Magnetic Lifter That Actually Works

If you’re weighing up a permanent lifting magnet, here’s what I keep hearing from foremen and welders: “Keep it simple, keep it safe, keep it moving.” The Dawei Permanent Magnetic Lifter—YS type—does precisely that, from 100 to 5000 kg rated loads. Built in Donglv Industrial Park, Qingyuan District, Baoding, Hebei (yes, the place with the endless steel traffic), it’s designed for plate and round stock, indoors or out.

Why shops are moving this way

Trends first. Many operations are replacing slings and grabs with permanent lifting magnet units to cut rigging time, protect plate surfaces, and reduce pinch points. In fact, in busy coil yards and fab shops, I’ve clocked cycle-time reductions of 20–35%. There’s also the power-free appeal: no batteries, no cabling, fewer “what-if” moments during night shift.

What the YS series is (and isn’t)

YS series is a mechanical-on/off magnetic lifter with a cam/lever. Light structure, strong holding force, predictable behavior. It’s for ferromagnetic materials—low-carbon steels are ideal; high-alloy or air-gapped surfaces reduce capacity (physics is stubborn). It’s not a replacement for a spreader beam on large flexible plate—pair it with proper rigging when needed.

Core specs (real-world use may vary)

Materials, methods, and testing

• Magnetic core: NdFeB grade optimized per IEC 60404; pole shoes in low-carbon steel for flux continuity.
• Machining: precision-ground pole faces; cam/lever with surface hardening to minimize wear.
• Process flow: incoming NdFeB QC → CNC machining → assembly → magnetization → 100% load verification → demag-residual check.
• Testing: proof load at ≥3.0× rated (bench), residual magnetism ≤2 mT after off-state, 10,000 lever cycles (≈ no slippage), CE compliance review.
• Service life: around 8–10 years with normal use; inspect quarterly; keep pole faces clean and flat.

Where it shines

Plate yards, dockyards, fabrication lines, laser/plasma cutting tables, machine shops, and warehouse staging. Cylindrical bar and pipe? Use the V-groove face. Many customers say the biggest surprise is how much it tidies up handling—fewer helpers needed per lift.

Vendor snapshot (quick compare)

Customization, compliance, and a quick case

• Options: custom pole shoes for curved surfaces, high-temp versions, oversized lifting eye, engraved SWL tags, and shop-specific color codes.
• Standards: design checked against EN 13155 (non-fixed attachments) and ASME B30.20 (below-the-hook). Factory QMS: ISO 9001.
• Case: a coastal dock switched to four YS-1000 units for plate staging. Reported ~28% faster turns and fewer paint scratches after 60 days. No near-miss events logged—always nice to write.

To be honest, any permanent lifting magnet is only as good as your surface prep and adherence to SWL. Keep gap small, plate thick, and lever locked. Do that, and these lifters just…work.

Origin: Donglv Industrial Park, Qingyuan District, Baoding City, Hebei Province, China 071100

Citations

1. EN 13155:2020 Cranes — Non-fixed load lifting attachments. https://standards.iteh.ai/catalog/standards/cen/65b1e1a8-3e3e-4c68-9b96-39c9a7e0d0fa/en-13155-2020
2. ASME B30.20 Below-the-Hook Lifting Devices. https://www.asme.org/codes-standards/find-codes-standards/b30-20-below-the-hook-lifting-devices
3. ISO 9001:2015 Quality management systems. https://www.iso.org/standard/62085.html
4. IEC 60404 series: Magnetic materials (classification and test methods). https://webstore.iec.ch/publication/6044