Ceramic Knuckle Heaters

We provide various types of Ceramic Knuckle Heaters which are used for the following applications: injection moulding, extrusion, blow moulding, rubber moulding, packaging, test equipment, laboratory equipment, including others. Also, we meet our customer’s expectations by manufacturing high quality knuckle ceramic heaters.

Design

Our Knuckle metal ceramic heaters are developed to meet industries demands for a long lasting, high temperature heater. Its construction consists of a helically wound resistance spiral, precisely stretched and strung through specifically designed refractory ceramic bricks. The build-up of the ceramic brick provides a flexible heating mat which is placed into a rolled outer metal casing and a 4mm thick ceramic fibre insulation. This provides an efficient high temperature and high watts density band heater.

The standard design of our knuckle metal ceramic heaters are capable of reaching temperatures of 400°C-450°C standard and special knuckles up to 700°C-750°C! Also, we can provide a built-in thermocouple at the customers request. It is a unique flexible design, making it the first choice with most European machinery manufacturers.

Advantages and Options

Unlike all other types of band heaters, the knuckle ceramic metal heater heats by radiation. When used on injection moulding machine barrels, it can be provided with a metal insulation jacket with 12.5mm ceramic fibre insulation for energy savings of up to 25%, resulting in reduced power consumption and cooler working conditions.

They can be also used on extruder barrels which can be provided with a mesh style outer metal casing, leaving air gaps between the ceramic bricks allows for air cooling, enabling critical extrusion temperatures to be maintained.

Complete units can be manufactured for extrusion machines with outer cowls, inlet and outlet air boxes together with high output blowers/fans. Here at Elmatic, we take pride in our ceramic knuckle heaters and we believe that they are right for your heating applications! As Elmatic are your source for quality industrial and electric heating elements.