RS Components
Our website uses cookies and similar technologies to provide you with a better service while searching or placing an order, for analytical purposes and to personalise our advertising to you.
 
MPN

Solenoids

A solenoid is a wire coil that functions as an electromagnet when charged, converting electrical energy to mechanical. You’re likely to find solenoids in many switching devices and relays (actuators), interlocks, starter motors and valves.

What types of solenoids can I buy online?

Linear solenoids are made from a wire coil wrapped in a corkscrew around a moveable metal core.
  • They exert a push/pull force on a moveable metal slug, completing a circuit when the linear solenoid coils are activated by an electrical current.
  • Their smooth motion means linear solenoids are often used in automatic security door mechanisms, as well as in starter motors.
Tubular solenoids also create a push-pull force on a metallic core, using much the same principle. However, the tubular solenoid is encased in a metallic sleeve, helping minimise magnetic flux leakage.
  • This optimises the tubular solenoid's performance, making it ideal for safe installation in a broad range of ’long stroke’ appliances, e.g. in current limiting switches, steering controls and hydraulic valves.
Rotary solenoids again utilise a wire coil around a metal core, but in this case the core is disc-mounted.
  • A system of cut grooves and ball bearings enable rotary motion when the solenoid is electrically charged. When the current switches off, a spring turns the rotary solenoid disc back to its original position.
  • Rotary solenoids are more robust and durable than linear solenoids, and used in precision industrial machinery such as lasers and shutters.
We also stock holding magnets and other solenoid accessories, including replacement solenoid spring kits.

What’s the difference between AC laminated solenoids and DC D-frame solenoids?

AC laminated solenoids use an in-rush (instantaneous high input) current to deliver a large amount of force with their first stroke. They’re used in electronic devices requiring immediate action, such as medical equipment, locks, industrial machinery and domestic appliances.

DC D-frame solenoids consist of a two-piece frame, designed to offer either push, pull, or push-pull forces. They’re found in electromechanical relays, valves, and vehicle gear/transmission systems.

Guides & Articles

article1_image

In our definitive guide, we look at what flow switches are, how they work and what they’re used for, as well as the different types that are available.

article1_image

In our comprehensive guide we look at what thermocouples are, what they’re used for, as well as the different types that are available.

Related Products
Related Products
Push, Push Pull Action AC Laminated Solenoid, 15mm
Push, Push Pull Action AC Laminated Solenoid, 15mm

Single-acting linear electromagnets for controllers, electrical equipment, machines, ...

Single-acting linear electromagnets for controllers, electrical equipment, machines, ...

Pull Action AC Laminated Solenoid, 27mm stroke, 15VA,
Pull Action AC Laminated Solenoid, 27mm stroke, 15VA,

High performance pull type ac laminated solenoids in ...

High performance pull type ac laminated solenoids in ...

Pull Action AC Laminated Solenoid, 9VA, 24 V
Pull Action AC Laminated Solenoid, 9VA, 24 V

Solentec Laminated AC pull action DC solenoids suitable ...

Solentec Laminated AC pull action DC solenoids suitable ...

Push Action DC D-Frame Solenoid, 24 V
Push Action DC D-Frame Solenoid, 24 V

The RS PRO push action 24VDC D-frame solenoid ...

The RS PRO push action 24VDC D-frame solenoid ...

Related Items
Related Items
Popular Searches
Popular Searches