17) Glass ceramic cover for top heater (only in connection with option 16))
The bottom heaters of all vacuum forming machines are covered by a glass ceramic plate for reasons of safety as well as for protection against the ingress of dirt.
This cover is available as extra option for the top heaters, but only when used with the type "Flash" halogen heating elements. The reasons are:
- The reflectors of the halogen elements are more sensitive than those of the quartz elements,
- the transparency of this cover for short-wave infrared radiation is better,
- the quartz glass tubes of the halogen elements are more sensitive than the closely packed quartz tubes of the quartz elements.
This option is always recommended since the dirt accumulation on the reflectors is substantially reduced , irrespective of the cause. In the same way as in a mirror, the surface of a reflector that is kept clean is much more efficient than a dulled surface. The cover is recommended in particular when processing materials with visible formation of smoke.
back to U series
back to T series