Nowadays, the mature and expense reduction of high electrical power and large torque servo continuous-duty motor and driving technology have promoted the an increasing number of applications of the linked electric servo drive units. The CNC bending machine widely used in the sheet metallic industry has opened the fresh trend of the main drive in the pure electric servo system rather then the main hydraulic drive, and the tonnage and production with the pure electric servo CNC bending machine are becoming a lot more large. This paper expounds the advantages of the pure electric servo bender weighed against the hydraulic bending machine through the aspects of energy saving, environmental protection, machining proficiency, bending accuracy and upkeep cost. The pure electric servo bending machine is a developing trend. But now its immature, we can see why people love this bending machine to get the trend of development.
One of the features of the pure electric servo drive technology would be that the input power of your motor is proportional for the load power, and the power consumption is large in the time bending. When the slider is usually empty, the power usage is small. When that slider stops, it will not consume the electricity. Even so the main motor and hydraulic push of hydraulic servo bender are generally running continuously, even if your slider does not operate. In addition, the mechanical transmission efficiency with the pure electric servo bending machine is a lot more than 95%, the hydraulic transmission efficiency in the hydraulic rebar bender servo bending machine is below 80%, and the efficiency of the hydraulic system components is lower after aging as well as wear.

The pure electric servo bending machine will not use hydraulic oil, does not replace the trouble involving hydraulic oil and dismantling hydraulic pieces. It also has zero replacement, dismantling process plus the daily hydraulic oil leakage from the system, and there is definitely no waste oil remedy and pollution.
The response speed belonging to the servo motor is faster than that of the hydraulic servo. Taking the 100t natural electric servo bending machine developed from the Kaifeng numerical control company as one example, the backstroke and fast speed belonging to the slide block are up to 200mm/s and the operating speed is 0 to help 20mm/s; the overwhelming major the same tonnage hydraulic bending machine is below 120mm/s and the speed is below 120mm/s, plus the working speed is 10mm/s. The hydraulic servo bending machine is tormented by the heating of the environment and also the hydraulic system. It is necessary to open the machine to preheat or quit the heat. Once the hydraulic system incorporates a fault, it can get the technical requirements of the troubleshooting as well as long time. The real electric servo bending equipment has few components and low failure rate. There are no such problems at all.