Motion Control – Tutorial – Solenoid Construction

Solenoid Construction

A Solenoid is a long wire, wound with a helical pattern, usually surrounded by a steel frame, having a steel core inside the winding.

When carrying a current “i “, the Solenoid becomes an electro-mechanical device, in which electrical energy is converted into mechanical work.

The core of a Solenoid is usually made of two sections, a movable actuator, or plunger, and a fixed end core or back stop.

The efficiency of a Solenoid is a factor of mechanical geometry, electrical configuration and magnetic permeability of core, plunger and housing.

The plunger is free to travel in the center of winding in a linear direction. When the coil is energized by the electric current “i “, a magnetic force is created between plunger and end core, causing the plunger to travel. The higher the permeability of steel used, the better the performance.

It is essential for a Solenoid to lose its magnetic force when input electrical power is removed. This is to allow the plunger to resume its original position. Any remaining magnetic field is called residual magnetism.

Material of the central guide and plating of plunger must be chosen to introduce minimum friction and low wear. Glass filled nylon and brass for the guide and electro-less nickel plating or other low friction coatings such as PTFE for the plunger are often good candidates.

Design and selection of a Solenoid requires basic knowledge of mechanical and electrical interrelationships. In many cases it is essential to make tradeoffs among a variety of mechanical, electrical, thermal, acoustical, and physical properties.

This design guide has been arranged to assist you in making the proper solenoid selection. However, if you prefer to have us design or recommend a solenoid based on your specific requirements, feel welcome to contact us.

Pictured above is the S-20-100X Pull Type Tubular Solenoid.  The S-20-100X series of solenoids features 18 different solenoids to select from based on the Voltage, Duty Cycle, Force and Stroke requirement of the user.  

For a tutorial on Solenoid Selection Factors go to – http://www.magneticsensorsystems.com/selectionfactors

For additional Information on the S-20-100X Pull Type Tubular Solenoids Click Here  

About Magnetic Sensor Systems – Established in 1983, Magnetic Sensor Systems (MSS) designs and manufactures high quality motion control solenoids, electromagnets, driving electronics and other types of electro-mechanical components for a variety of industries and applications.

Part of Magnetic Sensor Systems’ competitive advantage is its state-of the-art in-house manufacturing facility in North America.  Highly controlled processes, committed staff and extensive testing complement their product design strengths.   This enables Magnetic Sensor Systems to supply the most demanding clients from specialized small orders to high volume just-in-time deliveries.  Magnetic Sensor Systems is an ISO 90001:2015 certified company.

Through wise and aggressive use of their resources and technology, MSS has become recognized as one of the world’s leading solenoid manufactures with a global customer base.

An extensive line of standard products are ready to be shipped immediately from stock, however, when required, their highly trained design engineers, are always available to work with a customer’s design staff to augment or develop a custom product to fit the specific needs of the customer.

For additional information contact the Sales Team at Magnetic Sensor Systems, 6901 Woodley Ave, Van Nuys, CA 91406; Toll Free: +1 (888) 785-9444, Tel: +1 (818) 785-6244, E-Mail info@magneticensorsystems.com or visit the website at http://www.magneticsensor systems.com

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