Using compressed air input pragan engineers provides an ampoule snap break strength testing machine. The testing machine can be used by manufacturers of glass ampoules as well as pharmaceutical companies using glass ampoules to determine the snap breaking strength of all ranges of glass ampoules. The tabletop unit is simple to operate as the strength figure can be easily read from a dial gauge, which gives the reading values in kgf/cm². It is to be remembered that the air pressure input has to be above 10 kgf/cm² in order to cover the normal range of snap break values. The testing machines are available in stainless steel construction apart from the standard model.