The electric push rod / industrial electric putter is currently used as a indispensable linear transmission machinery and equipment after nearly30years of development, gradually formed a system, at present market of electric putter roughly divided into the following 4:
The first: currently on the market are collectively referred to as the heavy D series electric putter, the electric push rod is China's first electric putter, it generally consists of a motor, a reduction gear, screw nut and the external limit switch and other components, the electric push rod began in China generally used in metallurgical industry is the most, the electric push rod speed is2 standard, change the speed reducer or general plus frequency, the electric push rod has the advantages of: strong and durable, the shortcoming is: image has a single speed, screw, single, low precision. 95 years development basically at a standstill phase.
Second : the market for most applications in the light of DL series electric putter, around 2000with the development of the domestic economy, with the introduction of foreign advanced products, high strength aluminum alloys(stainless steel)series electric putter, the electric push rod appearance, speed of the optional is more also, limit switch mainly uses the magnetic inductive limit switch, customers in the use is more convenient, accuracy is improved greatly, screw selection can also according to the customer's choice of trapezoidal toothed screw and ball screw, the electric push rod soon received a lot of customers, of course, imitation also followed, the quality of the product is also due to the different manufacturers.
Third: the electric push rod is also called servo electric cylinder, which is characterized by high speed, high precision, high frequency, on many occasions with the DL ball series electric putter with servo motor to replace.
Fourth: FD series of small electric push rod, the electric push rod adopts the direct current motor, small volume, thrust, mainly used in the not very frequent local, FD series electric putter is the biggest advantage of built-in limit switch, customers are very convenient to use, does not need to be additionally connected control circuit.