Laser Safety Class 4 Machines
If the Trotec laser engraving machine is equipped with a hatch, the chassis will have an opening where radiation can, technically, exit. These laser devices fall into the laser Safety Class 4 range. A similar situation occurs with Trotec Galvo laser machines. The laser must be classified as Safety Class 4 if it doesn't have corresponding housing. These machines can only be operated with special protective equipment (protective glass, shields, protection goggles).