Suction-cup electromagnet, DC 12 V
A published size ladder of suction-cup electromagnets from φ20 to φ100.
Source page lists FW-P20/15 φ20 mm, suction 25 N, long-time 200,000 cycles, and a size table through FW-P100/40S. IP54 is named. Application text: automated distribution.
Who it is for. Automation and equipment builders specifying a DC holding magnet.
The problem it is aimed at. Pick-and-place and door-hold fixtures fail when the magnet diameter and holding force were guessed from a photo.
Source listing id: products-0-70. Numbers not printed on that page are marked TBC on request — they are not invented here.
What the listing actually says
- IP54 named on the spec block.
- Size ladder from φ20 to φ100 with published suction figures on the table.
- FW-P20/15: 25 N suction, 200,000 cycles.
Published parameters
| Example model | FW-P20/15S |
|---|---|
| Example size | φ20 mm |
| Example suction | 25 N |
| Cycle figure named | 200,000 cycles |
| Ingress named | IP54 |
| Voltage in title | DC 12 V |
| Model | OD | ID | H | Thread | Thread L | Life (×10³) | Mass | Force | Power-ish |
|---|---|---|---|---|---|---|---|---|---|
| FW-P20/15S | Φ20 | Φ8 | 15 | M3 | 6 | 200 | 3 | 25 | 15 |
| FW-P25/20S | Φ25 | Φ10 | 20 | M4 | 6 | 200 | 4 | 50 | 50 |
| FW-P30/22S | Φ30 | Φ12 | 22 | M4 | 6 | 250 | 5 | 100 | 80 |
| FW-P34/18S | Φ34 | Φ16 | 18 | M4 | 6 | 250 | 6 | 180 | 90 |
| FW-P40/20S | Φ40 | Φ18 | 20 | M5 | 8 | 250 | 8 | 250 | 130 |
| FW-P49/21S | Φ49 | Φ22 | 21 | M6 | 8 | 300 | 10 | 400 | 230 |
| FW-P50/27S | Φ50 | Φ20 | 27 | M5 | 8 | 300 | 10 | 500 | 300 |
| FW-P59/34S | Φ59 | Φ27 | 34 | M8 | 10 | 300 | 12 | 700 | 560 |
| FW-P65/30S | Φ65 | Φ26 | 30 | M8 | 12 | 300 | 13 | 800 | 600 |
| FW-P80/38S | Φ80 | Φ34 | 38 | M8 | 12 | 300 | 14 | 1000 | 1100 |
| FW-P100/40S | Φ100 | Φ42 | 40 | M8 | 15 | 300 | 15 | 1200 | 1900 |
Figures copied from the source listing table. Column meanings that were not labelled in English on the page should be confirmed on the official drawing.
Questions buyers ask
How do I pick a diameter?
Use the published table (φ20–φ100) against the mass you need to hold, then confirm residual magnetism and duty cycle with Funwella.
Factory FAQ: reply within 24 hours; sample 3 working days.