The design and features of these Planetary Mixers allow one to carry out very precise work cycles. The structure is composed of a durable stainless steel carpentry. The safety grid is constructed of stainless steel and the head section is covered by specially thermoformed shatter proof plastic safety cover. The safety grid itself, when raised, does not allow for function of the machine, at the same time, it is maintained in the up position till the operator releases it. The machine is endowed with a special tool arresting system.