Linear Actuators: Types and Characteristics

Linear Actuators: Types and Characteristics

A Linear Actuator is totally different from electrical motor because it applies force in a linear way instead of rotationally. The linear motion will be achieved in different ways and a linear actuator is among the units that may covert rotational motion to linear motion.

Mechanical type

A mechanical actuator converts the rotary motion to linear displacement by means of screws/gears to which a knob is attached. One of many renowned examples of mechanical actuator is a jackscrew or car jack. Mechanical actuator is used in lasers and optics for manipulating the position of mirror mounts, linear levels and plenty of more positioning instruments.

Hydraulic type

A hydraulic actuator or cylinder has a hollow cylinder with a piston inside it. Controlled linear displacement of the piston is achieved by pressurizing/de-pressurizing two sides of the piston. Hydraulic automobile jack is the most common instance of a manually operated hydraulic actuator.

Electro-mechanical type

A linear electromechanical actuator is a in which a nut is the primary part of the motor. The lead screw of the actuator would not rotate and the lead nut is rotated by the motor. It is just like mechanical actuator however an electric motor is used instead of a management knob or handle.

The fashionable linear actuators come in numerous designs and each manufacture has their own proprietary strategies of making actuators.

Principles of Linear Movement Actuators

The basic operation principle of linear motion actuators is an inclined plane. The lead screw has threads, which act as ramp and allow small rotational power that can be utilized over long distance for achieving the movement of large load within a shorter distance.

Variations in Linear Motion Actuators

There are totally different variations in the primary design of linear actuators. Many of the gadgets have general improvements like higher velocity, efficiency or load capacity. Nowadays, manufacturers are additionally focusing more on reducing the size of these actuators. There is variety of actuators available in market, which fits particular industrial wants of buyers.

What make linear motion actuators higher compared to other motors are their sooner speed, higher accuracy and better acceleration. These are used for gantry axes, general function position, gantry axes and meeting machines. Linear actuators are specially meant for use in adverse conditions and act as replacement against different hazardous actuators for performing the job.

Other than linear actuators, DC actuators are also used for performing related applications. These run smoothly and do not produce a lot noise. Many DC actuators available within the market are water proof. Buyers can go for standard as well as customized range of actuators depending on their want and budget.