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Cylinder Difference
- Nov 20, 2018 -

Traditionally, cylinders and electric actuators have been considered to belong to two completely different fields of automation, but in recent years, as electrification has increased, electric actuators have slowly immersed in the aerodynamic field. There are competitions and complements in the application. In this issue, we compare the advantages of cylinders and electric actuators in terms of technical performance, purchase and application costs, energy efficiency, application and market conditions.

Technical performance

It is well known that compared to electric actuators, the cylinders can work reliably under harsh conditions and are simple to operate, and are basically maintenance-free. The cylinder is good at reciprocating linear motion, especially suitable for the most conveying requirements in industrial automation - straight handling of workpieces. Moreover, simply adjusting the one-way throttle valve mounted on both sides of the cylinder can easily achieve stable speed control and become the biggest feature and advantage of the cylinder drive system. Therefore, for users who do not have multiple positioning requirements, the majority prefer to use cylinders from the perspective of ease of use. At present, most of the applications of electric actuators used in industrial fields require high-precision multi-point positioning, which is difficult to achieve with cylinders, and the second best result.

Electric actuators are mainly used for rotating and swinging conditions. The advantage is that the response time is fast and the speed, position and torque are precisely controlled by the feedback system. However, when it is necessary to complete the linear motion, the transmission needs to be converted by mechanical means such as a toothed belt or a screw rod, so the structure is relatively complicated, and the professional knowledge of the working environment and the operation and maintenance personnel are highly demanded.

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