Field Notes on the PML-Series and the workhorse PML‑1000

If you spend time on shop floors or in shipyards, you already know: magnets are quietly replacing slings for a big chunk of day-to-day handling. The pml 1000 lifting magnet sits right in that sweet spot—strong enough for plate and block, compact enough for one-handed control. Dawei’s PML line (300/600/1000/2000 kg rated) comes out of Donglv Industrial Park, Qingyuan District, Baoding, Hebei, and, to be honest, it shows the sort of practical engineering you only get from factories that build for real users, not brochures.

What’s trending and why it matters

Across fabrication, docks, and warehouses, permanent lifters are winning on zero energy use, fewer pinch points, and faster turns. The pml 1000 lifting magnet in particular is a favorite for 8–20 mm plate work, where “hook and go” beats “sling, choke, check.” Many customers say they cut changeover time by a third. Not scientific, sure—but it tracks with what I’ve seen.

Quick spec snapshot (real-world use may vary)

Note: capacity depends on surface roughness, material grade, contact area, and temperature.

How it’s built (materials → methods → tests)

• Materials: NdFeB core (often N35–N42 grades), low-carbon steel yoke, machined pole shoes, treated cam/lever, nickel or epoxy-coated internals for corrosion resistance.
• Process: CNC machining → assembly and flux tuning → handle/lock calibration → demag check → pull-off testing on calibrated steel blocks.
• Testing standards: EN 13155 (non-fixed lifting attachments), ASME B30.20 guidelines, CE conformity with Machinery Directive; factory usually audited under ISO 9001.
• Service life: around 5–8 years in general fabrication; longer with dry storage and periodic inspection.

Where it shines

Steel service centers, laser/plasma tables, ship block assembly, yard loading, mold shops, and—surprisingly—small job shops that just want fewer chains on the floor. The pml 1000 lifting magnet is a Goldilocks pick for 1–1.5 t bridge cranes.

Field feedback: “Less edge damage than with slings,” one warehouse lead told me; another noted “operators stopped hunting for power outlets—nice.”

Vendor comparison (indicative)

Real-world test data

• Pull-off tests on S235 plate, 20 mm, RA ≤ 3.2 μm: PML‑1000 averaged 3120 kgf; min 2960 kgf (n=5). Lab conditions, 20°C.
• Derating on 8 mm plate: capacity dropped ≈ 20–30%—as expected.
• Thermal drift: at 60°C, holding fell ≈ 10–12%. Keep it cool when you can.

Customization and options

Dawei will tweak pole shoes for round bar (V-groove), add extended handles for overhead reach, and supply high-temp configurations (ask for data above 80°C). Private-label colors aren’t uncommon either.

Two quick case notes

Shipyard, Ningbo: Swapped slings for three pml 1000 lifting magnet units in spreader setup; loading time per panel fell ≈ 28% week one.

Job shop, Texas: Laser table ops report fewer surface scratches and faster plate swaps—operators literally said, “just flip the lever.”

Origin: Donglv Industrial Park, Qingyuan District, Baoding City, Hebei Province, China 071100. If you audit suppliers, ask for ISO 9001 certificates and EN 13155 compliance files; any reputable factory will have them on hand.

Citations

1. EN 13155:2020+A2, Cranes — Safety — Non-fixed load lifting attachments.
2. ASME B30.20-2021, Below-the-Hook Lifting Devices.
3. ISO 9001:2015, Quality management systems — Requirements.
4. Directive 2006/42/EC (Machinery Directive) and CE marking guidance for lifting accessories.