Halogen Point Heater (point and circular condensing type)
Halogen Line Heater (line condensing type)
Halogen Line Heater (plane condensing type)
The difference between a Halogen Point Heater and a Halogen Line Heater are whether it heats a point and circle or a line or plane.
For point heating or circular heating in millimetres, use a “Halogen Point Heater (point and circle condensing type)”.
For linear heating and plane heating or line heater , use a “Halogen Line Heater (line and plane condensing type)”.
Gold-plated mirror and Aluminium polishing mirror
Gold-plated condensing mirrors can most effectively reflect the radiant energy of halogen lamps.
However, the plating of the Condensing mirror may be separated due to the scattering of gas and particles generated from the object to be heated.
If it peals off, the reflectance will decrease and it will be necessary to replace the condenser.
Aluminium-polished condensing mirrors have up to 10% lower reflectance than gold-plated ones.
In addition, the surface of the Condensing mirror gradually oxidizes and the reflectance gradually decreases.
Unlike gold-plated mirrors, by re-polishing the mirror plane, the decrease in reflectance due to oxidation can be suppressed and restored.
Regardless of which Condensing mirror is used, it is essential to keep condensing millor clean and maintain the reflectance for efficient heating.
A protective glass can be attached to the condensing mirror as an option.
By installing a protective glass, it is possible to prevent contact with oil smoke on the reflecting plane of the condensing mirror and scattering of particles.
Furthermore, after installing the protective glass, there is also a method of supplying compressed air to the inside of the condensing mirror to make it positive pressure and prevent the intrusion of dust and oil smoke.
If air leaks are a problem, a closed structure can solve them.
Related page:
3-2.Basic structure of Halogen Line Heater 
3-8.Wide Range of Plane Heating with Line Heating Type Halogen Line Heater 
2-2.Basic Structure of the Halogen Point Heater 
3-1.Overview of Halogen Line Heaters 
3-4.Focal length and focal width of Halogen Line Heater 
3-6.Halogen Line Heater cooling 
6-1.About Re-reflective Heating Method 
Wood heating with halogen line heater