1 Introduction to Pneumatic

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INTRODUCTION TO PNEUMATICAND HYDRAULIC SYSTEMS

(JJ512)

Prepared by:

NIK NOOR ZILAWATI BINTI NIK AB RAHMAN

MOHD AMIRUL BIN JOHARI


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SYNOPSIS

Provide knowledge and understanding to

P&H circuits, equipment and design along

with usage in the industrial sector.


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COURSES LEARNING OBJEKTIF:

Upon completion of this course, students should be able to:-

1. Classify the basic concept and function of P&H system.(C4)

2. Construct accurately pneumatic, electro pneumatic and

hydraulic circuit. (P5)

3. Report briefly P&H experiments in group. (A3)


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PNEUMATIC HISTORY

Origins

1st century, when ancient Greek mathematicianHero of Alexandria wrote about his inventions

powered by steam or wind. However, none of his

discussions revealed thoughts of using the devices

for transporting objects.

-German physicist Otto von Guericke (1602 to 1686) went a little

further. He invented the vacuum pump,


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Capsule Transportation

With the invention of the capsule in 1886, people now had a container to put items in to

transport them from place to place. People in Victorian England were the first known to usecapsule pipelines to transmit telegrams from one telegraph station to another.

Postal Systems

Scottish engineer William Murdoch (1754 to 1839) was the first to apply pneumatics topostal services, but there is little evidence that he went further than suggesting thetransmission of letters and packages through pneumatic tubes. American merchant JohnWanamaker (1838 to 1922) installed a pneumatic system in the United States Post Office.

PNEUMATIC HISTORY


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Public Transportation

Pneumatics was also applied to public transportation. A notable

example is the efforts of American inventor Alfred Beach (1826 to

1896). In 1867, Beach demonstrated a pipe able to transport a

handful of passengers, giving birth to the pneumatic subway line.

However, the line only lasted for a few months, terminated afterBeach was unable to gain permission to extend the distance of the

subway.

PNEUMATIC HISTORY


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Today

Pneumatics is neither in wide use today, nor is it exciting

curiosity. That can be credited to ever-advancing technology.

However, its lasting mark is the tube terminals at bank drive-

throughs.

PNEUMATIC HISTORY


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EXAMPLE OF PNEUMATIC

APPLICATION


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PNEUMATIC BLOCK DIAGRAM

Compressor Receiver Dryer FRL Unit Control

ValveActuator


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Pneumatic control system


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To determine the status of processor(Sensor).

Information processing(processor)

Switching of actuator by mean of final

control elements. Carrying out of works(actuators)

MAJOR APPLICATION OF

COMPRESSED AIR


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CLAMPING

SHIFTING POSITIONING

ORIENTING

BRANCHING OF MATERIAL FLOW

GENERAL METHOD OF MATERIAL

HANDLING


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GENERAL APPLICATION

Packaging

Filling Metering

Locking

Driving axes Door or chute control

Transfer of material and etc.


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Linear

Swivel Rotary

TYPES OF PNEUMATIC MOTION


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ADVANTAGES OF PNEUMATIC SYSTEM

Air is available practically everywhere in unlimited quantities.

Air can be easily transport in pipelines, even over large distance.

Compressed air can be stored in a reservoir and removed as required.In addition, the reservoir can be transportable.

Compressed air is relatively insensitivity to temperature fluctuations.This ensure reliable operation, even under extreme conditions.

Compressed air offers no risk of explosion or fire.


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ADVANTAGES OF PNEUMATIC SYSTEM

Unlubricated exhausted air is clean. Any unlubricated air whichescapes through leaking pipes does not cause contamination.

Simple construction and relatively inexpensive.

Very fast working medium and high working speed.

Can be loaded to the point of stopping and therefore overload

safe.


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DISADVANTAGES OF PNEUMATIC SYSTEM

Required good preparation

Possible to achieve uniform and constant speeds

Economical to certain force requirements 6-7 bar.

The exhaust air is loud.


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SELECTION CRITERIA FOR THE CONTROL

SECTION

Reliability of components

Sensitivity to environment

Ease of maintenance Switching time of components

Signal speed

Space

Service life Modification of the control system

Training


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HTTP://WWW.SMC.EU/PORTAL/NE

W_EBP/18)INTRODUCTION_OF_C

AT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDF
http://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDFhttp://www.smc.eu/PORTAL/NEW_EBP/18)INTRODUCTION_OF_CAT/18.1)INTRO/C)PNEUMATICS_S/PN_SYMBOLS_EU.PDF


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BASIC PNEUMATIC CIRCUIT


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TO BE CONTINUED.

NEXT WEEK

insyaAllah..

Documents

1 Introduction to Pneumatic