Solenoid applications vary across a vast range of industries. The Solenoid Company understands what a solenoid is designed to do and can help you, not just with the solenoid itself, but the whole mechanism or sub-system to which it applies.

From simple locking devices to fast laser operation; from automotive gear boxes to aerospace release mechanisms; from medical clamping devices to industrial diverters; our list includes not only the sort of solenoids illustrated on these pages, but specially tooled mouldings and non-standard mountings.

Locking Applications

Solenoids are frequently used in locking mechanisms, and the scope of locking applications includes many industries. Obvious uses include door locking, in hotels, offices and secure areas, vending machines, remote access systems, turnstiles, car park and access barriers. The list is extensive. Latching can be mechanical or magnetic, and the main function can suit the application to include single acting solenoids, bi-stable solenoids, two-directional solenoids or holding solenoids in many cases with or without springs.

Automotive Applications

Automation within automobiles is now more common place than ever. The most frequent use of a solenoid is an interlock device for integration into automatic gearbox drive selectors. The function prevents the selection of “drive” without first receiving a release signal from brake pedal and the prevention of the engine being started with drive being selected; starting is only possible in park. Similar applications include ignition operated steering column interlocks with gear selection.

Other applications for solenoids include petrol cap locking, in-car entertainment release mechanisms, anti-vibration engine mountings, air conditioning control and security systems. Automotive applications are not just for cars. We supply solenoids for integration into joystick controls for agricultural machinery, for lorry systems and many other automotive applications. There are just far too many to be listed here.

Medical Applications

Medical solenoid applications demand high accuracy in terms of force and stroke, and stringent standards that ensure reliability and long life. Typical examples include dialysis machines, dosing equipment and blood pressure monitoring devices.

Inside dialysis machines, two solenoids act in tandem to control differing levels of blood flow during the dialysis process. Plastic tubes carrying the blood are squeezed at a pre-determined rate to precise clamping requirements. Here the force stroke diagram defined by the application calls for the optimum use of magnetic flux technology.

Simple dosing machines are equivalent to the mechanical operation of a syringe. Despite the straightforward application, the rate of stroke and the force profile of a dosing solenoid are critical. This is to ensure that dosing can take place directly into the body.

Blood pressure monitoring equipment may not require such exacting performance from a medical solenoid, but here the application calls for long life from a battery power source. This typifies the medical industry requirement for medical solenoids: highly accurate devices with guaranteed long life. All these solenoids can be stand alone or integrated into customer’s own devices.

Railway Applications

Applications within the railway industry are particularly diverse, including functions on locomotives, rolling stock, tracks, signals and power distribution as well as conventional uses in maintenance and building.

The Solenoid Company has manufactured special solenoids for trackside installation security. A modified standard linear solenoid is used as part of an integrated locking mechanism that prevents unauthorised access to trackside enclosures. The robust device operates as part of a remote security network, suitable for the extremes of external temperatures.

Passenger turn-styles operated by tickets, use standard variant bi-stable linear solenoids selected for long life.

Safety interlock on passenger car doors use a solenoid operated mechanism that is controlled remotely by the train manager.

The Solenoid Company has developed a special solenoid for the operation of fire extinguishers in locomotives. This application calls for a very high force for the relevant size, to operate the jets of a fire suppressant system.

These are just some examples of experiences we have within the railway industry.

Industrial Applications

The use for solenoids in industry is extensive.

Anywhere that electrical power is required to achieve a movement becomes an application for a solenoid. Some general examples of use are locking, cutting, clamping, punching, positioning, diverting, holding or rotating.

The range of standard or modified standard solenoids from The Solenoid Company will satisfy most of these applications.

ISO 9001
Certificate Number: FS 617500

  • Impulse Automation Ltd
    (Formerly H. Kuhnke Ltd.)
    Unit 6 Focus 303
    Focus Way, Walworth Business Park.
    Andover, SP10 5NY
    United Kingdom
  • Tel: +44 (0)1264 364194
    Fax: +44 (0)1264 365991
    Registered in the UK - No. 665193
    VAT No. GB207766451