This kind of adhesive dispenser are design for medium factories, and with such a adhesive dispenser high production ability and high technology of you products have also been indicated. Also due lacking of workers, surely adhesive dispenser is the best choice for you factory. mainly features 1,This kind of adhesive dispenser are most suit for those low requirement for the high modernization and also are suit almost all kinds of liquids but for the special liquids such as hot melt adhesive , silicon, pu, uv, they are not suit, but don't worry for a technical factory we also had its special design for those liquids) 2,This kind of adhesive dispenser are equipped with big tanks which can save you much time to change adhesive and once time can use for long time) 3,The amount of this adhesive dispenser are controlled by time, that is when you press the button and select one second then the nozzle will just out of one second's amount. 4,This kind of adhesive dispenser are equipped with suck-back function , with this suck- back function we can easily solve the problem sting or drag. Below is the specification Standards: CE/ROHS (very hard certificate) Tank: 1gallon(have capacity can select) Repeatability: +/-0.05%(this is the amount difference between the first time and the last time) Frequency :> 300times/minute Air input, 1-7 bar (100 psi) maximum Air output,0.1-7bar Power: <15W(save much energy) Input voltage: 110 VAC or 220 VAC Weight: <12kgs Size: 36x36x56cm (Very small ,Not taking you place, just like a small not book)