What is a magnetic puller

2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21

Clothing stores are visited by a large number of customers, so it is very difficult for security representatives and sellers to keep track of everything. To help workers in this area, the owners install special frames at the entrance and exit - anti-theft systems. Such devices respond to certain sensors that are attached to clothing. They can only be removed with a magnetic puller.

Types of protection sensors

There are several most common types of device data:

1. Systems with anti-theft electromagnet. In such a sensor, the emitter and receiver are fixed on different parts. As a result, a powerful electromagnetic field is formed, the frequency of which is from 10 Hz to 20 kHz. To deactivate such protection, the tag must be rubbed against a magnetic surface.
2. Acoustomagnetic systems. In such devices, the magnetostrictive strip is not fixed and can freely oscillate mechanically. When placing such a label in a special "anti-theft"the frame installed at the exit, when leaving the store, it will begin to vibrate. Magnetic tag removers are used for deactivation.
3. Systems of protection using radio frequencies. Such devices consist of an inductor, a capacitor and an oscillatory circuit. It is to them that the protective frames installed at the exit react. Deactivation requires a strong magnetic field of about 8.2 MHz.
4. RFID tags. This is a special type of sensor. Such devices are used not only for protection, but also in travel transport cards, hotel key cards. You cannot deactivate an RFID tag, you can only change the information in it, which is what the cashiers do after the sale.
5. Hard gauges. Such devices may have a magnetic or mechanical lock.

Magnetic lock sensors

Basically, these anti-theft devices have a universal lock, but there are other types that are very rare.

Types of sensors with universal lock:

1. Standard. To remove such protection, a magnetic force of 4000 gauss is required. Remove using a large neodymium magnet.
2. Reinforced. Even the most powerful device will not help here. You will need a magnetic puller to remove it. The required force is on average 8000 gauss.
3. Superblock. Need puller for 9000-11500 gauss.
4. Hardlock are considered the most powerful and reliable sensors. Currently, only two companies produce such protection: Dural Tag and Check Point. To remove them, a force of 14500 to 18000 is required. Gs. Due to their properties, their price is noticeably higher compared to other firms.

Types of removable systems

Devices for removing sensors from goods have several classifications. They are distinguished by the principle of operation:

• magnetic;
• mechanical;
• automatic systems.

Magnetic puller is a device designed to remove sensors from goods. A magnet is built into the design of such a unit. Such devices are mainly located at the checkout and, depending on the force, are used to remove various types of sensors. The system operates autonomously from the power supply network. The service life is unlimited.

Magnetic deactivators do not differ significantly in their structure. These mechanisms are classified according to the power of the emitted pulse and shape. The ability of the device to simultaneously remove one or another number of sensors is determined by the strength of the conducted magnetic energy. In stores, as a rule, standard appliances with low power ratings are installed. For example, a magnetic clothes puller used to remove ordinary "squeaky" tags.

New type sensors require more advanced type deactivators. Such devices are made of aluminum and are considered universal because they can be used to open the locks of various tags. The device consists of several magnets connected to each other. This creates a powerful directional force field. Such a deactivator is an enhanced magneticpuller, it is attached with screws to the surface of the cash table. This device can remove hard sensors, standard and reinforced lock.

The principle of operation of the magnetic puller

The sensor is attached to the product in order to protect the latter from theft from the trading floor. Devices vary in size and shape. The "beeping" sensor is a protective clip, which is a plastic case, inside of which the mechanical system is located. It can have a different structure, for example, in the form of a steel rod installed between two metal balls on springs.

The principle of operation of the magnetic tag remover is the formation of a powerful directional impulse, which diverts the steel balls in different directions and pulls out the main rod. As a result of impact, the protective clip of the sensor opens and it can be removed from the product without mechanical damage.

Use of magnetic pullers

The main area of use of such devices is trade. Sellers use them to deactivate sensors that protect goods from theft. Less commonly, a magnetic clip remover is used in everyday life. With it, you can create a system based on a magnetic lock, so some car owners protect car headlights from theft.