In RFID application scenarios, if a conventional RFID标签 is attached to a metal object surface for reading, its performance will sharply decrease and may not be readable. RFID anti metal tags can solve the problem of conventional tags attached to metal surfaces that cannot be read and are a good helper for asset management of metal items.
So, what are the common types of RFID ultra-high frequency anti metal electronic tags? How to distinguish and choose correctly?
RFID anti metal tags can be distinguished by material, including hard, soft, special, etc.
The common anti metal hard label is composed of ultra-high frequency white label + PET foam (1cm thick)+3M adhesive to increase the distance between the metal surface and the label, thereby achieving anti metal function.
The common anti metal soft label, also known as RFID flexible anti metal label, is commonly used in asset management. It adopts an advanced anti metal antenna design circuit design + aluminum, foil 0.8-1mm foam wrapping, thickness 1-1.2mm, has a certain degree of flexibility, and can be bent. It has good anti metal properties, excellent performance, good directionality, and reading distance when used on metal surfaces, and is suitable for sticking to curved assets such as metal cylinders; It can be applied to RFID asset management, cylinder tracking, traffic control, logistics management, hazardous material management, and other aspects. 备注: Generally, printers can print a 0.06-0.28mm thickness. But printers that print flexible anti metal labels must support printing thicknesses of 1.3-1.4mm and support printer types such as Zebra ZT410/Silver line Printronix SL4M.
Common materials for RFID special tags include PCB anti metal tags, ceramic anti metal tags, ABS anti metal tags, and RFID tie tags.
- PCB label design principle: There are two metal layers before and after, and the middle layer is moistened with Inlay, with a commonly used thickness of 2-3mm.
- PCB anti metal label application: suitable for installation on car license plates, as well as for outdoor power equipment inspection, tower and pole inspection, elevator inspection, pressure vessel steel cylinder and steam cylinder, product tracking of various power household equipment, asset management, logistics management, and automotive component process management.
PCB ultra high frequency micro anti metal tag
RFID ceramic tags are packaged with special ceramic substrates and can be installed on metal surfaces. They have strong anti-corrosion properties and are suitable for harsh working environments. They are mainly used for component tracking and asset management. Temperature resistance of 200 degrees, strong resistance to human interference (21x21mm size can be read up to 2 meters on the human skin).
RFID ultra-high frequency ceramic anti metal tag
ABS anti metal labels generally use ultrasonic superinjection, with slightly weaker waterproof properties; There are also wet inlays placed on the inner side of the front, 10mm away from the bottom, with low cost; There are also encapsulated PCB boards (5-6 pieces) packaged with ABS engineering plastic, which has characteristics such as sun protection, waterproof, and high-temperature resistance, and is widely used in logistics management. It can achieve the informatization and modernization of logistics management, improve the level and efficiency of logistics management, and reduce management costs. Main application areas: Logistics pallet labels are mostly used in logistics management, luggage, pallets, containers, shelves, equipment, fixed asset management, etc.
Most RFID ultra-high frequency tie labels are made of tail nylon material and ABS shell encapsulated with wet Inlay. The tail nylon must absorb enough water and be boiled before leaving the factory. It is fine if it is not boiled in the south, but in the north, where the temperature is extremely low, it is easy to bend and break. Of course, there are also temperature-resistant nylon options to choose from, and it is necessary to distinguish regions when purchasing.