High Precise Injection Molding machines (IMMs)

Injection molding machines maker claims that their Injection molding machines are highly precise and highly energy saving machines. So if you want to buy a new IMM then how to decide and choose an injection molding machine which is precise according to your requirement.

If you have visited the market or searched online then you will be well aware of servo drive injection molding machine and all-electric injection molding machines.

Servo technology makes an injection machine highly precise and energy saving machine.

Injection molding machines are divided into three types on the base of technology used.

Hydraulic IMMs

All-electric IMMs

Hybrid IMMs

In old fashioned injection molding machines, hydraulic system used was not energy efficient not the motor used to drive the hydraulic system was precise. Motor for hydraulic pump runs all the time even when machine not doing any work. Then what happen with hydraulic oil, hydraulic oil circulates in the pump relief valve and back to hydraulic oil tank without doing any work. Relief valve also cause heat generating in the oil so a new cooling system is required to cool the hydraulic oil.

IMM maker introduced changed and improved hydraulic system that turn of the motor completely or slow down the speed of motor according to requirement.

Motors used for this purpose are not much precise. These motors can run at full speed, slow and turn off but not precise.

So to counter this situation a new drive system introduced named servo motor and servo drive. Servo drive is used in places where high precision is demanded like CNC machines. Servo technology have feedback and encoder and location sensor.

Now a days servo drive system is using in Injection molding machines that make them more precise and energy efficient along with PLC and HMI for better control and to attach with supervisory control. PLC and HMI can be connected with computer via Ethernet cable in the premises or any computer with internet.

All-electric injection molding machines there are servo drive system to control each and every motion of the machine like clamping, injection and retraction etc. hydraulic is completely removed from all-electric Injection molding machines. This new all servo drive system had made injection very precise, energy saving and a very clean injection molding process oil free cleanroom friendly.

Servo drive system available for low tonnage injection molding machine for high and ultra-high tonnage you still have other systems. All-electric injection machines are expensive and available in small and medium size. To overcome this situation hybrid injection molding is introduced which have advantages of both hydraulic and all-electric.