Field notes on the YS-series magnetic lifter: what buyers actually ask (and what I’ve seen on the shop floor)

If you’re speccing a permanent lifting magnet for plates or rounds, the Dawei YS series is one of those products that keeps popping up in conversation—partly because it’s made in Donglv Industrial Park, Qingyuan District, Baoding, Hebei, which is kind of a magnet manufacturing hotspot (no pun intended).

Why YS matters in 2025

Two trends I keep hearing from yards and fabricators: power-free lifting (no batteries to babysit) and proof-tested safety for thinner plate. The YS ticks both—lever-actuated, energy-free rare-earth magnet with a conservative safety factor. In fact, many customers say they switched from electromagnetic grabs to reduce downtime and cable clutter.

Core specs (real-world use may vary)

Models span 100–5000 kg rated load. Magnetic circuit uses NdFeB (N42–N45, typical), steel housing with V-groove for rounds. Lever lock is mechanical with positive latch—simple, which I like.

Test notes: flux density at pole face ≈0.9–1.1 T; recommended workpiece thickness ≥10–12 mm for full rating; temperature ≤80°C.

Applications and industries

Steel service centers, shipyards, machinery shops, docks, warehouses, and rail fabrication lines. Plates, flame-cut parts, billets, rounds—yes, the V-groove helps. I’ve seen it shine on single-plate pulls from stacks where slings were a pain.

• Advantages: zero energy draw, quick pick-and-place, predictable breakaway, safer than finger-lifting plates.
• Service life: around 8–10 years with routine pole-face care; magnets don’t “wear out” fast—heat and impact are the real enemies.

Process flow and quality

Materials: NdFeB blocks, low-carbon steel frame, machined pole shoes. Methods: CNC machining, magnetization, assembly, lever/lock calibration. Testing: 3.0× static pull test on clean plate; surface finish check; Gaussmeter verification; latch fatigue cycles (≈10k).

Standards referenced: ASME B30.20, EN 13155, and factory ISO 9001 QA. Some buyers also request CE marking with conformity files—ask for the DoC if you need it for audits.

Real-world case (quick)

One Baoding fabricator replaced chain slings for 12–30 mm plate with a YS-1000. Result: about 22% faster turn on laser beds (their number, not mine) and fewer glove “near misses.” The surprising part was how clean edges stayed—no sling bite.

Vendor snapshot (my shorthand)

Customization and usage tips

• Options: custom pole shoes for thin plate, stainless covers, tag plates with QR traceability.
• Use: clean the contact face; keep air gap minimal; for rounds, center on the V and derate (often by 30–50%).
• Temperature: magnets drift about −0.12%/°C—stay under 80°C for predictable holding.
• Certs: ask for load test certificate per batch, plus material list for magnets and housing.

Customer feedback is candid: “It just works.” That’s not glamorous, but in lifting gear, boring is beautiful. For most shops, a permanent lifting magnet removes one variable—electricity—from the safety equation. To be honest, I’m okay with that trade.

Authoritative citations

1. ASME B30.20 Below-the-Hook Lifting Devices, latest edition. https://www.asme.org
2. EN 13155: Cranes – Safety – Non-fixed load lifting attachments. https://standards.iteh.ai
3. ISO 9001: Quality management systems – Requirements. https://www.iso.org/iso-9001-quality-management.html
4. OSHA 1910 Subpart N – Materials Handling and Storage. https://www.osha.gov