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Actuators and output devices. Actuators. An Actuator is an Output Device for the Conversion of Supply Energy into Useful Work. They Can Be Described Into Two Groups. Linear Motion Single Acting Cylinders Double Acting Cylinders Rotary Motion Air Motor Rotary Actuator. Actuators.
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Actuators • An Actuator is an Output Device for the Conversion of Supply Energy into Useful Work. They Can Be Described Into Two Groups. • Linear Motion • Single Acting Cylinders • Double Acting Cylinders • Rotary Motion • Air Motor • Rotary Actuator
Actuators • An Actuator Can be Controlled by the Following Methods: • Pneumatic • Hydraulic • Electrical
Linear motion • Single Acting Cylinders • Double Acting Cylinders
Rotary motion • Rotary actuators - single and double acting • Pneumatic motor - continuous motion • Hydraulic motor - continuous motion • Electrical motor - continuous motion
Single acting cylinders Rod Bearing Spring Vent Connection Piston Seal
Single acting cylinders Force = Pressure x Area (piston)
Double acting cylinders Seals Piston Rod Bearing Base end Connections Rod end
Duplex cylinders 1 2 3
Duplex cylinders 1 2 3
Duplex cylinders 1 2 3
The rodless cylinder • Conventional Double Acting Cylinders require space to house the cylinder. • Plus space to carry out the work. More effective use of the available space can be made by using Rodless Cylinders.
Rodless cylinder - mechanically coupled Clamp for seal and protection strip Piston and carriage assembly Body of Cylinder End caps with cushioning and adjustment Internal seal Protection strip
Rack and pinion rotary actuator Pistons with ‘Rack’ arrangement End cap with pneumatic connections End Cap with Shock absorber type cushioning Adjustable Body of Actuator Driven Shaft with gear