Field Notes on the Pml 1000 Lifting Magnet: what to know before you buy

If you’ve ever watched a plate yard on a busy Monday, you know the unsung hero isn’t the crane—it’s the magnet. The Dawei PML series, built in Donglv Industrial Park, Qingyuan District, Baoding, Hebei, China 071100, has quietly become a staple. And yes, the Pml 1000 Lifting Magnet is the sweet spot many buyers gravitate to: enough grunt for full-shift plate work without the bulk of the 2-ton unit.

Why permanent beats electro (these days)

Industry trend in a nutshell: permanent magnetic lifters dominate thin-plate and short-cycle jobs because they need no power, stay “on” even during outages, and are easier to certify. Rare-earth magnet supply has stabilized lately (finally), bringing predictable pricing. In busy factories, docks, and warehouses, that’s half the battle.

PML-1000 quick specs (real-world oriented)

Applications and advantages

• Steel service centers: plate picking, nesting remnants, verified time-saver.
• Docks and yards: no slings, faster turns; safer on windy days.
• Machine shops: burn tables, laser/oxy-plasma load/unload; minimal imprint on plate.
• Advantages: zero power, quick handle actuation, V-groove for rounds, predictable safety margins.

How it’s built and proven (process flow)

Materials: high-coercivity NdFeB core, low-carbon steel yoke, precision-ground pole shoes with V-groove, positive-lock cam handle. Methods: CNC machining, heat treatment of pivots, epoxy sealing. Testing: gauss mapping, proof load ≥3× rated for 10 s per unit, 10,000 handle-cycle endurance, 48 h salt-spray on coated parts, residual magnetism check. Standards referenced: ASME B30.20/BTH-1, EN 13155, JB/T 8711. Typical service life: 5–10 years with basic care (clean pole faces; avoid shock loading).

Customization

• Capacity set: 300 / 600 / Pml 1000 Lifting Magnet / 2000 kg families.
• High-temperature magnet grades, coated pole shoes for corrosion-prone yards.
• Handle orientation, branded nameplates, deeper V for pipe-heavy work.

Vendor snapshot (what buyers compare)

Mini case study

A coastal fabricator swapped two chain slings for one Pml 1000 Lifting Magnet on 20–35 mm plate. Loading cycles dropped from 3:10 to 1:05 per pick (time study, week 2). They logged 0 near-misses vs. 3 sling pinch events the prior quarter. The kicker: no power cables to trip over—sounds trivial until you trip.

Customer feedback, tests, and certifications

Common feedback: strong hold on 30+ mm plate, smooth handle snap, and stable staging thanks to a balanced shackle. Factory test data (sample lot Q2-2025): breakaway ≥3.1× rated; residual magnetism ≤1.7 mT; 10k-cycle handle test pass; coating salt-spray 48 h with no red rust. Documentation: CE declaration, ISO 9001 QMS, and conformity to EN 13155/ASME B30.20 guidelines.

Buying checklist

• Match plate thickness to capacity; thin stock demands derating.
• Confirm safety factor and proof-test certificate per unit.
• Check surface condition (rust/scale lowers pull).
• Verify standards: EN 13155, ASME B30.20/BTH-1, JB/T 8711.
• Plan inspection intervals and operator training.

Authoritative citations

1. ASME B30.20 & BTH-1, Below-the-Hook Lifting Devices
2. EN 13155: Non-fixed load lifting attachments
3. JB/T 8711-2006: Permanent Magnetic Lifter (China)
4. ISO 9001: Quality Management Systems
5. Dawei PML Series Product Page (specs and range)