1. Role of part

It has a built-in Insert Tube and plays a major role in inserting the insulation oil. It cools down the heat producing when X-ray is produced by shooting elevated tube voltage and tube current. Therefore, it makes possible to shoot successively. 
The inside of metal of Housing must have no leaks and oils must not leak. 
Also, by restricting the size of each parts strictly, assembly of individual components should be smooth. 

2. Model

- M125S20X : Tube voltage(125kV), F/Spot (1.0/2.0) , Target (16°) 
- M150S12X : Tube voltage(150kV), F/Spot (0.6/1.2) , Target (12°)