Less energy, heat and noiseAs with the ecodrive principle, the drives of an injection moulding machine with the retrofitted ecodriveR are only active when the machine is in movement, such as during mould opening and closing, plasticising and injecting. During the post injection pressure and plasticising phases, the speed is reduced, and during cooling, the drives come to a complete standstill and do not use any energy at all.
In addition to the significantly lower drive energy levels, both ecodrive and ecodriveR offer other advantages. For example, the reduction in the amount of heat released is particularly noticeable. Normally, the excess energy is converted into heat and emitted into the atmosphere and the hydraulic oil. Both of these effects are almost completely eliminated when ecodrive or ecodriveR is used, which lowers the cooling capacity considerably and increases the lifespan of the hydraulic oil. One ergonomic advantage of the two systems is the reduced noise emissions, which are a consequence of lower average motor speeds.
Smaller CO2 footprintsThe saving potential depends on different factors. Machine size and cycle time play a crucial role among other things. If, for example, POM technical parts with a shot weight of 109 g and a cycle time of 78.3 seconds are made on an Engel victory 330/125 injection moulding machine that has been energetically optimised with the ecodriveR system, 3.7 kWh of energy will be saved every hour, which means 46% less will be consumed compared to a machine that has not been updated. The 3.2 kWh/h drive energy reduction and the fact that the cooling/filter motor uses 0.5 kWh/h less energy make a major contribution here. If the machine is in operation for 6000 hours per year, the amount of electricity it uses will be cut by 22,200 kWh overall, which equates to six tonnes of carbon dioxide.
The retrofit option ecodriveR can be added to any Engel hydraulic injection moulding machine with three or fewer asynchronous motors and electro-hydraulic variable capacity pumps. In many countries, this investment is supported by funds from the public sector.