Solenoid Jargon Terms

Basic Names: solenoid, solenoids, electromagnet, electromagnets, electro magnet, electro-magnet, coil, coils, actuator, actuators

Work Mode: linear, pull, pulling, push, pushing, push-pull, bi-directional, bi directional,

latch, latching, Hold, holding, self-hold, self hold, bi-stable, bi stable, bistable, keep, keeping, uni-stable, uni stable, unistable, magnet holding,

dual latching, dual latch, double, permanent magnets,
rotary, swing, flapper, clockwise, anti clockwise

Profile Shape: open frame, C-frame, C frame, D frame, D-frame, box frame, Shape
Tube, tubular, cylinder, cylindrical, O frame

Extention: pilot solenoid valve, pilot valve, valve, operators, air, gas, water, liquid, fluid, normally-open normally-close, 2-port, 3-port
solenoid driven, Solenoid powered, operated, power, drive, driver, pump, massage solenoid,

Input: A.C, AC, D.C., DC, input, inrush, current, eddy currents,
Parts: return spring, bobbin, coil, lead wire, frame, cover, plunger, pushing rod,
Output: force, stroke, torque,

Cert.: lead free, RoHS compliant, compliance, environment protection, environmental friendly

Structure: laminated, laminations, pancake solenoid, shading coil, oil immersed, air package, m-line, clamp plate,

Descriptions: miniature, small, large, long life, high reliability, short stroke, high speed, low profile, low cost, high force,

Applications: Slot Machines Coin-Operated Games Table-Top. Models Vending Machines Of All Varieties Money Exchangers Ticket Dispensing Equipment, Computer Peripheral Equipments Fax Machines Time Recorders Copying Machines Typewriters Cash Registers Plotters and Hand Held Printers Drinking Fountains Automatic Locks Safety Belt Locks Automobile Solenoid Valve Parking Facility, Tape Recorders, VCRS Electronic Keyboards Auto Weaving Machines Karaokes Robots Agriculture Livestock Equipment Stamping / Punching Equipment Alarm Systems Save-water Solenoid Valve, computer peripheral equipment, test equipment, medical equipment, office machinery, military, aerospace, high quantity, small quantity, large quantity,

Misspelling: solenoide, solenoides, solinoids, solinoid, solonoids, solonoid, selenoids, selenoid, colenoids, colenoid,

Supplier: factory, China, Chinese, manufacturer, factories, make, firm, company
OEM/ODM solenoid, custom design solenoid
, customized


designed and manufactured with maximum power output, quiet operation, stable temperature rise and low friction action. The competitive price, high quality, soonest delivery and wide various solenoid types,


  • Air Gap

    The air space between the stationery and moving pole face in a solenoid assembly.

  • Ampere Turns

    The absolute value of magnetic flux in a solenoid assembly determined by the number of turns of copper wire and the magnitude of the current

  • Anchor Plate

    A thin formed sheet of metal fitted over the mounting studs of a rotary solenoid to provide containment for a scroll type return spring

  • Armature Assembly
    The armature assembly of a rotary solenoid comprises of the shaft, hub and armature plate. This is the complete moving element of a rotary solenoid
  • Armature Plate
    The armature plate is the large diameter plate forming the main rotating element of a rotary solenoid, it contains the 3 coined ball races used in the Ledex principle to convert linear motion to rotary movement. The coined tracks are hardened for wearability
  • Case
    The outer case of a solenoid assembly which provides the main flux path. In the case of a rotary solenoid the case also contains the 3 hardened ball races which convert linear motion to rotary movement using the Ledex principle
  • Coil
    Copper windings provide the electrical element for all solenoids, current is passed through the coil to create a magnetic field. Coils can be precision wound, random wound or bobbin wound, performance is optimised when the maximum amount of copper for the space available is achieved
  • Duty Cycle
    The duty cycle is defined as the ratio of on time to on + off time in a given cycle, the lower the duty cycle the higher the output that can be obtained from the solenoid, however this can only be achieved in short bursts
  • Gross Torque
    The starting torque available from a rotary solenoid before any deductions for return springs etc.
  • Heat rise
    The rise in coil temperature which results from operating the solenoid, you should expect the temperature rise to be up to 80 deg above ambient when mounted on a suitable heat sink
  • Heat Sink
    The maximum allowable watts for each solenoid are specified based on an unrestricted flow of air mounted on a heat sink equivalent to that specified,. An inadequate heat sink or restricted air flow can result in the solenoid coil becoming overheated.
  • Holding Torque
    The torque required to free the armature from the energised position whilst under power.
  • Hub
    Part of the armature assembly forming the moving pole face of a rotary solenoid
  • Lead wires
    Standard temperature rated coils use UL listed PVC insulated lead wires. Class ’H’ coils use PTFE insulated leads.
  • Ledex Principle
    Our range of rotary solenoids use the Ledex principle of operation. This employs the inclined plane of 3 ball races to convert linear motion to rotary developed by G H Leland during the 1940’s. It provides almost frictionless conversion of the motion and is widely adapted throughout the industry
  • Lubrication
    The ball races of our standard range of rotary solenoids are lubricated with a lithium based grease with temperature capabilities of -54 deg C to in excess of 90 deg C, endurance engineered models are lubricated in a similar manner with a grease suitable for temperatures of -29 deg C to + 121 deg C
  • Operation
    Solenoids provide the interface between electrical control and mechanical movement
  • Permissible temperature rise
    The permissible temperature rise of a solenoid coil limits the magnitude of the power and therefore the available ampere turns. Heat makes the coil less efficient because it increases resistance reducing ampere turns, flux density and torque or force output
  • Residual Magnetism

    The magnetism which remains in effect between 2 pieces of magnetic material after the electromagnetic field created by the coil has been removed. An air gap is usually maintained between 2 magnetic poles to minimise the effects of residual magnetism.

  • Rotary Solenoids
    Our range of rotary solenoids use the Ledex principle of operation with 3 inclined ball races, as a result they have a small axial stroke which must be allowed for in any application
  • Solenoid
    A cylindrical coil of wire acting as a magnet when electric current passes through it, converting electrical energy to mechanical energy.
  • Starting Torque
    The torque which is produced by a rotary solenoid in the first 2 degrees of movement from its de-energised position.
  • Stator Assembly
    The portion of any solenoid which contains the coil, case and base, the items which remain stationary during operation
  • Temperature rise
    The increases in coil temperature above ambient resulting from operating the solenoid. A temperature rise of 80 deg C is typical for a standard solenoid
  • Weber
    A unit of magnetic flux


Solenoid (from

A solenoid is a three-dimensional coil. In physics, the term solenoid refers to a loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets. The term solenoid refers specifically to a magnet designed to produce a uniform magnetic field in a volume of space (where some experiment might be carried out).

In engineering, the term solenoid may also refer to a variety of transducer devices that convert energy into linear motion. The term is also often used to refer to a solenoid valve, which is an integrated device containing an electromechanical solenoid which actuates either a pneumatic or hydraulic valve, or a solenoid switch, which is a specific type of relay that internally uses an electromechanical solenoid to operate an electrical switch; for example, an automobile starter solenoid, or a linear solenoid, which is an electromechanical solenoid.