To design and fabricate pneumatic based sheet metal cutting machine to be used for the cut the sheet metal of minimum thickness without manual hard work instead we use pneumatic control system to operate the cutting machine accurately. This machine can also be installed in the lab for the experiment and demonstration to engineering students. Thereby gaining the hand sum experience and knowledge on how to design and fabricate the mechanical system.



The sheet metal cutting process is a main part of the all industries. Normally the sheet metal cutting machine is manually hand operated  One for medium and small scale industries. Automation in the modern world is inevitable.

Any automatic machine aimed at the economical use of man, machine, and material worth the most. In our project is solenoid valve and control timing unit is used for automation.


Working principle


The sheet metal cutting machine works with the help of pneumatic double acting cylinder. The piston is connected to the moving cutting tool. It is used to cut the small size of the sheet metal.

Auto Feed Pneumatic Sheet Metal Cutting Machine
Auto Feed Pneumatic Sheet Metal Cutting Machine

The machine is portable in size, so easy transportable.

The compressed air from the compressor is used as the force medium for this operation. There are pneumatic double acting cylinders solenoid valves, flow control valve and the timer unit is used. The arm from the compressor enters to the flow control valve. The controlled air from the flow control valve enters to the solenoid valve. The function of solenoid valves all of air correct time interval. The 5/2 solenoid valve is used.

In one position air enters to the cylinder and pushes the piston so that the cutting stroke is obtained. The next position air enters to the other side of cylinder and pusses the piston return back, so that the releasing stroke is obtained. The speed of the cutting and releasing stroke is varied by the timer control unit circuit.

Component Description:

1) Air Compressor:
An air compressor is a device that converts power (usually from an electric motor, a diesel engine or a gasoline engine) into kinetic energy by compressing and pressurizing air
2 ) Pneumatic Cylinder :
Pneumatic cylinder (sometimes known as air cylinders) is mechanical device which use the power of compressed gas to produce a force in a reciprocating linear motion.
single acting cylinder Diagram
single acting cylinder Diagram
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. Like hydraulic cylinders, something 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.
3) Solenoid Valve
A solenoid valve is an electromagnetically operated valve. 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 valve used for mechanical project
solenoid valve used for mechanical project

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.

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Sachin Thorat

Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.

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