An electromagnet is a device that produces a magnetic field, which is possible due to the flow of electric current through it. Electromagnets are used in systems that can both attract and repel, and even move and lift elements made of ferromagnetic metals. Such metals include mainly iron, although sometimes objects of this type are made of nickel or cobalt. Due to the way they influence metal objects we can distinguish between pushing and holding electromagnets. Individual models differ in power and operating voltage. Considering these parameters we should choose electromagnets for a specific project and object. In Botland shop you will find a wide range of electromagnets, which have found their application in mechanical systems and access control systems. They have different sizes and shapes, as well as range of operation. Check our offer and compare individual electromagnets in order to choose the best one.
Official Cooling Fan for NVIDIA Jetson TX2 NX - Waveshare 22983
Index: WSR-22128
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Temperature Sensor - Waterproof DS18B20 - 1,82m - SparkFun SEN-11050
Index: SPF-14065
- On sale!
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- Reduced price
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- On sale!
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ProtoPi module - extension of Raspberry Pi to contact plate + tape
Index: MOD-01743
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Electromagnets
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Electromagnet holding 12V 3W 20kgf
Holding electromagnet, powered by 12 V. With a standard acceleration due to gravity of 9.8 m/s 2 it supports a mass of 20 kg . The current consumption during operation of...
Index: DNG-17572
Index: DNG-17572
- Reduced price
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Electromagnet holding 12V 6W 60kgf
Holding electromagnet with a rated power of 6 W. It requires a voltage pulse of 12 V to operate. With a standard acceleration due to gravity of 9.8 m/s 2, the maximum...
Index: DNG-17579
Index: DNG-17579
Electromagnet holding 12V 1W 80mA 1kgf
Holding electromagnet, powered by 12 V. With standard acceleration due to gravity (9.82 m/s 2 ) it maintains a mass of 1 kg . Current consumption is approx. 80 mA, rated...
Index: DNG-17565
Index: DNG-17565
Electromagnet pulling 12V 24W 6,5kg
The electromagnet is equipped with a 20 mm long bolt, which after receiving a 12 V voltage signal performs a linear pulling movement. During operation the device consumes...
Index: DNG-17766
Index: DNG-17766
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The electromagnet is equipped with a 15 mm long pin, which after receiving a 12 V voltage signal makes a linear - pulling motion. The device draws a current of approx. 1.8...
Index: DNG-17764
Index: DNG-17764
Electromagnet pushing 12V 0,2kg 11mm
The pushing solenoid is powered by 12 V and can push out a mass of 0.2 kg with a standard earth acceleration of 9.8 m/s2. The diameter of the housing is 11 mm, while the...
Index: AKS-19280
Index: AKS-19280
Solenoid, coil, 5V electromagnet - SparkFun ROB-11015
The device allows to perform a linear movement, for example, pulling or pushing, using the voltage signal of 5 V. The range of the bolt is approximately 4.5 mm.
Index: SPF-01996
Index: SPF-01996
Electromagnet holding 12V 4W 30kgf
Powered by 12 V , the holding electromagnet holds a mass of 30 kg at a standard acceleration due to gravity of 9.8 m/s 2 . The rated power of the device is 4 W and the...
Index: DNG-17576
Index: DNG-17576
- Reduced price
- Promotion
Pulling electromagnet 12V 7,2W 0,8kg
An electromagnet which, under the influence of supplying a voltage of 12 V to the coil, performs a linear - pulling motion . The device draws about 0.6 A current. The range...
Index: DNG-17760
Index: DNG-17760
Electromagnet pulling 12V 0.4kg
The device allows to perform a linear - pulling motion with a voltage signal of 12 V. The range of the bolt is approximately 10 mm.
Index: DNG-12093
Index: DNG-12093
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The holding electromagnet is powered by 24 V with a power of 2.5 W. It holds a mass of 3 kg at a standard acceleration due to gravity of 9.8 m/s 2 . The body diameter is 20...
Index: MOD-07027
Index: MOD-07027
Electromagnet holding 12V 2W 5kgf
Holding electromagnet with a maximum load capacity of 5 kg (at standard gravitational acceleration of 9.8 m/s 2 ). Powered by 12 V. Current consumption is...
Index: DNG-17568
Index: DNG-17568
Electromagnet holding 12V 1W 1kgf
A holding electromagnet which, after applying a voltage pulse of 12 V , maintains a mass of 1 kg (at standard gravitational acceleration of 9.8 m/s 2 ). The current...
Index: DNG-17566
Index: DNG-17566
- Reduced price
- Promotion
Electromagnet holding 12V 3,5W 30kgf
Holding electromagnet with a rated power of 3.5 W. Powered by 12 V. Current consumption is approximately 300 mA. The device maintains a mass of 30 kg under standard...
Index: DNG-17574
Index: DNG-17574
Pulling electromagnet 12V 14,4W 3,5kg
Tractive solenoid, which requires a voltage of 12 V to operate correctly on the coil. The device, performing linear motion, draws about 1.2 A current. The range of the pin...
Index: DNG-17763
Index: DNG-17763
Electromagnet holding 12V 3W 15kgf
Powered by 12 V , a holding electromagnet that holds a mass of 15 kg under standard acceleration due to gravity (9.8 m/s 2 ). Current consumption during operation is...
Index: DNG-17570
Index: DNG-17570
Electromagnet holding 12V 6W 55kgf
Holding electromagnet with a rated power of 6 W. Powered by 12 V. Current consumption is approximately 500 mA. The device maintains a mass of 55 kg under standard...
Index: DNG-17578
Index: DNG-17578
Electromagnet holding 12V 15W 240kgf
Holding electromagnet with a maximum load capacity of 240 kg (at standard gravitational acceleration of 9.8 m/s 2 ). Powered by 12 V. Current consumption is approximately...
Index: DNG-17583
Index: DNG-17583
The device allows to perform a linear - pulling motion with a voltage signal of 12 V. The range of the bolt is approximately 10 mm.
Index: MOD-03661
Index: MOD-03661
Electromagnet HT-60 12V 2,7W 64kgf
Holding electromagnet is powered with voltage of 12 V with the power of 2.7 W. It keeps the weight of 64 kg by standard earth acceleration of 9.8 m/s2. The dimensions of the...
Index: MOD-06730
Index: MOD-06730
The device allows to perform a linear - pulling motion with a voltage signal of 12 V. The range of the bolt is approximately 10 mm.
Index: MOD-08073
Index: MOD-08073
Holding solenoid 12V 2,5W 2kgf
The holding electromagnet powered with the voltage of 12 V with a power of 2.5 W. It holds a weight of 2 kg in standard earth acceleration of 9.8 m/s2. Case diameter is 20 mm,...
Index: MOD-03095
Index: MOD-03095
Elektromagnet pushing 12V 2kg typ2
The push electromagnet is powered by 12 V , it can push a mass of 2 kg with a standard earth acceleration of 9.8 m/s2. The housing diameter is 25 mm and the housing length is...
Index: AKS-19282
Index: AKS-19282
The device allows to perform a linear - pulling motion with a voltage signal of 12 V. The range of the bolt is approximately 10 mm.
Index: MOD-08072
Index: MOD-08072
Electrically powered magnets for mechanical systems
An electromagnet is a type of magnet in which the magnetic field is created by an electric current . Electromagnets usually consist of wire wound around a coil . The current flowing through the winding creates a magnetic field that is concentrated in the center of the coil. The magnetic field disappears when the current is turned off. Coils of wire are often wound around a magnetic core made of a ferromagnetic material such as iron - the core concentrates the magnetic flux and creates a stronger electromagnet. The purpose of the magnetic field is to influence ferromagnetic metals.
Simple magnetic field control
The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be changed quickly by controlling the amount of electric current in the winding . However, unlike a permanent magnet (e.g. a neodymium magnet ), which does not require power, an electromagnet requires a continuous supply of current to maintain a magnetic field . They are used, among others, in electric motors. Electromagnets powered by electricity produce a magnetic field only when electric current flows through the winding.
Magnetic field - magnets available in the offer
Our online store offers electromagnets with different voltages and currents, which allows you to select a system that suits your individual needs. Modules integrated with the control electronics are also available, which simplifies the implementation of such an electromagnet in an electronic system, for example with an Arduino module.
Holding electromagnets for access control
One of the applications of holding electromagnets available in our store are access control systems - door locks. Holding electromagnets (another name: holding electromagnets) are used to hold doors that should not be open at a given moment. The electronic system, after receiving a signal from the system controlling the lock - card reader, RFID token, code keyboard, etc. - deenergizes the electromagnet coil, which stops it from being attracted to the metal plate on the door. At this point you can open the door normally and enter the room. The electromagnet is switched on again after a while and when the door is closed, it does not allow it to be opened again until the signal from the access control system is given again. Electromagnets can be perfect for many electronics projects. In turn, industrial electromagnets, as the name suggests, are used on a wide scale in various industries.
Electromagnets - FAQ
An electromagnet is a device consisting of a core of magnetic material surrounded by a coil through which an electric current flows to magnetize the core. The electromagnet is used where controllable magnets are needed, e.g. when the magnetic flux is to be changed, reversed or turned on and off.
Neodymium magnets come in various sizes, shapes and weights. At Botland you will find them in sets of several pieces and as single pieces, round and rectangular magnets, cylindrical magnets, holding, pushing and pulling magnets. It is worth trying models with an additional layer of glue for easy assembly.
Prices of electromagnets in Botland range from several dozen zlotys to just over PLN 100 per piece. An important parameter of holding electromagnets, which determines the price, is the value of the mass that it can hold in kilograms (the same applies to other types of electromagnets).