You cannot choose the right electromagnet from a data sheet. You want certainty about force/stroke or torque/angle, ED% (S1/S3), thermals, switching frequency and end stops in the mechanics. Rotero combines advice + engineering + practical testing to ensure that your application performs reliably — from prototype to series production.
What you notice in your project:
- Shorter time-to-market (fewer iterations)
- More reliable operation (no thermal surprises)
- Lower TCO (less downtime and maintenance)
Which technology is appropriate in which situation?
- Linear solenoid (pull/push): short stroke, fast response (locking, dosing, sorting).
- Rotary solenoid: compact angular rotation with high repeat accuracy (valve control, indexing).
- Holding magnet (adhesive magnet): energy-efficient holding/positioning; ideal with sensors.
- Lock and shotbolds: locking applications, where necessary for the most extreme conditions
What Rotero tackles for you (so you don’t run any risks)
- Power vs. stroke & air gap: optimising pool geometry = stable performance.
- Thermal & ED%: coil temperature and insulation class match the duty cycle.
- Switching frequency & mass inertia: no internal hammering; correct damping and end stop.
- Power supply quality: voltage drop, inrush, EMC; driver advice if required.
- Service life & environment: spring selection, bearings, IP protection, corrosion resistance.
4-step process
- Application intake: function, forces/stroke or torque/angle, cycles, environment, standards.
- Proposal + sample: substantiated choice with calculation or trial setup.
- Validation: testing for thermal properties, frequency, end stops, and service life.
- Industrialise & supply: variants, packaging and logistics for series production.
FAQ
When should I choose rotary instead of linear? If you need a repeatable angular movement, want to build compactly and want to switch quickly.
What exactly does ED% or S3 mean? The duty cycle within a cycle (e.g. S3-50%). Critical for thermal behaviour, performance and service life.
Can Rotero provide customised solutions? Yes — coil, spring, voltage (12/24V DC), connector, IP seal, mounting and more. Where standard solutions do not fit, we make them fit.
How fast are samples? Common variants are often fast; series with transparent lead times. We plan along with your project.
Want to know more?
Would you like to discuss your application? Schedule a consultation about electromagnets!
Please also read:
- New from Magnet-Schultz: solenoid valves for hydrogen use
- Simple selection of solenoids
- Looking for a customised solenoid product? Magnet Schultz has the solution!
- Why electromagnets get hot (and why that matters)
- New: Duro-Tech solenoids with IP65 protection class
