Pneumatic Cylinders :
 
Pneumatic cylinders (sometimes known as air cylinders) are mechanical devices which use the power of compressed gas to produce a force in a reciprocating linear motion. Hydraulic cylinders, pneumatic cylinders use the stored potential energy of a fluid, in this case compressed air, and convert it into kinetic energy as the air expands in an attempt to reach atmospheric pressure.
 
This air expansion forces a piston to move in the desired direction. The piston is a disc or cylinder, and the piston rod transfers the force it develops to the object to be moved.[1] :85 Engineers prefer to use pneumatics sometime because they are quieter, cleaner, and do not require large amounts or space for fluid storage.
 
Because the operating fluid is a gas, leakage from a pneumatic cylinder will not drip out and contaminate the surroundings, making pneumatics more desirable where cleanliness is a requirement. For example, in the mechanical puppets of the Disney Tiki Room, pneumatics are used to prevent fluid from dripping onto people below the puppets.......Click for more Info

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Solenoid Valves  :
 
A solenoid valve is an electromechanical valve for use with liquid or gas. The valve is controlled by an electric current through a solenoid: in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports. Multiple solenoid valves can be placed together on a manifold.
 
Solenoid valves are the most frequently used control elements in fluidics. Their tasks are to shut off, release, dose, distribute or mix fluids. They are found in many application areas. Solenoids offer fast and safe switching, high reliability, long service life, good medium compatibility of the materials used, low control power and compact design.

Besides the plunger-type actuator which is used most frequently, pivoted-armature actuators and rocker actuators are also used.

A solenoid valve has two main parts: the solenoid and the valve. The solenoid converts electrical energy into mechanical energy which, in turn, opens or closes the valve mechanically. A direct acting valve has only a small flow circuit, shown within section E of this diagram (this section is mentioned below as a pilot valve). This diaphragm piloted valve multiplies this small flow by using it to control the flow through a much larger orifice.
 
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Rotary Actuator :
 
Rotary actuator find application for 90 deg. angular movement. (180 deg. on req.) & are most suitable for closing & opening of ball Valve, butter fly valve, damper positioning, sorting equipments, indexing mechanisms, furnace doors, ducting flaps etc.
 
This design uses two opposite moving pistons with the help of rack & pinion mechanism to generate powerful uniform torque.  When air is admitted in one port pinion rotates in one direction at the same time air is exhausted through other port & vice versa.  This very compact design to give powerful torque.  It works maintenance free for years............Click for more Info

Spring Balancer :
 
Spring balancer are made of a sheet metal body, a spring wound on a shaft with a safe, protective, tensioning system.
 
Overhead heavy tools Spring Balancer are specially designed to free operator from weight of the hand tools. The tools are suspended at one end of the wire rope wound on a drum fitted with a spiral spring. When properly balanced by adjusting spring tension, the tools become almost weightless in the hands of an Operator.

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