heating tile for vacuum forming machine

Heating tiles are critical components of vacuum forming machines. They heat and soften plastic sheets so the material can be shaped into desired plastic products. Below is a detailed introduction to vacuum forming machine heating tiles.

I. Structure and Working Principle

Honeycomb Ceramic Heating Tile

It consists of housing, ceramic heating tile, electric heating wire, ceramic cover plate, thermal insulation layer, honeycomb ceramic plate and other parts. Continuous U-shaped grooves are arranged on the ceramic heating tile, with heating wires embedded inside the grooves. The heating wires are made of high-temperature nichrome and nickel alloy materials. They generate heat once electrified. Efficient heating is realized with the cooperation of honeycomb ceramic plates and thermal insulation layers.

Nickel Alloy Resistance Strip Heating Tile

Composed of an outer housing and heating elements mounted inside the housing. The heating element is an S-shaped flat coiled nickel alloy resistance strip. Its bent sections are fixed onto the housing by fasteners, and both ends are connected to terminals on the top of the housing via electrical connectors. The nickel alloy resistance strip delivers faster heating and higher efficiency by reducing resistance and increasing current.

Nano Far-Infrared Glass Heating Tile

It comprises a housing and heating elements fitted on the upper surface of the housing. The heating element is made up of glass substrate, electrothermal film layer, electrode sheets, mica insulation layer and heat insulation layer. An electrothermal film layer is coated on the outer side of the glass substrate. Electrode sheets are silk-screened on both ends of the electrothermal film layer. The electrode sheets are tightly wrapped with mica insulation layers externally, and heat insulation layers are arranged outside the mica layers. Heating function is achieved by connecting electrode sheets with conducting wires.

II. Features and Advantages

• High Heating Efficiency: Honeycomb ceramic heating tiles achieve over 15% higher effective heating efficiency compared with conventional resistance heating bricks and quartz heating panels.
• Precise Temperature Control: Smaller independent heating units deliver better performance. Each heating tile adopts separate control for high temperature accuracy. Heating temperature can be precisely adjusted to suit different plastic materials and forming requirements.
• Long Service Life: Constructed from high-temperature ceramics and resistance wires. The structure is anti-cracking and resistant to aging under prolonged heating, offering a longer service life than traditional heating tiles.
• Excellent Energy-Saving Performance: New-generation heating tiles adopt optimized structures and materials to cut heat loss and boost energy utilization rate, delivering prominent energy-saving benefits.

III. Installation and Operation Precautions

Installation Requirements Heating tiles shall be installed with good contact with heated workpieces to guarantee effective heat transfer. In addition, secure mounting is required to prevent loosening during machine operation.

Stable Voltage Supply Temperature of heating tiles is susceptible to voltage fluctuations. A voltage stabilizer is recommended to maintain constant temperature, stable heating performance and consistent plastic forming quality.