1, high-speed inverter speed control range of 0 to 100, if the motor and load mechanical strength allowed, the motor is not over-flow, the inverter can also make mechanical speeding operation; and hydraulic coupling speed range is generally 40 to 95 , That is, the high-speed section of the speed loss caused by about 5, affecting the unit's output; and the lowest hydraulic coupling generally only to the rated speed of 40, in some cases, can not meet the needs of speed regulation, and sometimes affect the further development of energy-saving benefits. 2, high-voltage inverter in the entire speed range has a higher efficiency (greater than 96); and the lower the speed of the fluid coupling efficiency is lower, itself is not a small loss, energy-saving speed control Greatly reduced. 3, high-voltage inverter motor and load machinery to achieve a real soft-start, completely solve the startup impact problem, if the process needs, the motor can be repeated in a short time repeated start; and hydraulic coupling can not solve the problem of motor starting, the motor Still direct start, you need to start the device, start the impact is also large, and can not be started frequently. 4, using high-voltage inverter speed control of the motor, just disconnect the original switch and the motor connection cable, inverter can be joined, not moving motor and mechanical connection, without changing any foundation, there is no change Site constraints; and hydraulic coupling to do speed control transformation, the hydraulic coupling must be string into the motor and the mechanical connection shaft, the need to move and re-pour equipment basis, some places may not allow space. 5, with high-voltage inverter speed motor transformation, once the inverter fails, the motor can also be linked to the frequency grid operation, will not cause loss of production; and hydraulic coupling motor and mechanical connection link, once the hydraulic Coupler failure, the load will not work machinery, hydraulic turbines can only shut down maintenance, resulting in lost production. High-voltage inverter is a high-tech equipment, high reliability, basic maintenance-free; and hydraulic coupling is a mechanical device, itself contains oil, waterways and other systems, high failure rate, maintenance workload, resulting in effective production time shorten. 6, high-voltage inverter will not increase the cost because of the motor speed, and low-speed high-capacity motor with a fluid coupling speed, the cost of the fluid coupling will greatly increase, and sometimes even impossible. 7, for the general motor speed control, the use of high-voltage inverter fluid coupling than the initial investment to large, but in the future almost no operation of the inverter cost. The hydraulic coupling requires regular maintenance, including raising a special maintenance team, often spend money on water change, etc., higher operating costs. 8, high-voltage inverter with a high level of intelligence, high speed accuracy, can also be directly closed loop operation, improve plant automation, reduce staff, improve the working environment and reduce workload; and fluid coupling speed accuracy than Poor, not to mention automatic control, but also unable to computer interface, but also leaks oil, the scene is often dirty, resulting in poor environment. In short, if the user needs speed control equipment, from our point of view, if the funds are not particularly scarce, it is recommended not to use the fluid coupling. Walk Behind Floor Scrubber,Commercial Floor Scrubber,Auto Scrubber,Floor Washer Nantong Weizhuo Environmental Protection Equipment Co.,Ltd , https://www.cwznts.com