PNEUMATIC

Understanding the basic of pneumatic

Aditya@poltekom.ac.id

Definition

• Pneumatic is a system / tools that is worked basically using the air pressure / air flow

• Therefore the force / work / displacement generated based on the general law of air pressure and flow

• Pneumatic is an actuator using the air pressure as their source of power

Comparison

Pneumatic Electric

Air pressure Directional valve Slow strong

Electric current Transistors Fast Weak

Power source

Controller component

Signal delivery

Energy conversion

Comparison

Pneumatic Electric

Cylinders Directional valve Logic valves Button valve Air pressure

Motors, linear motor Transistors/contactors Op amps Button / switch Battery

WORKING ELEMENTS / ACTUATING DEVICES

Single / double acting cylinder

SINGLE ACTING CYLINDER

Forcible surface

Air pressure port / supply port

Pressurized chamber

DEpressurized chamber

Exhaust port / waste port

Spring return

Forcible surface

Air pressure port / supply port

SINGLE ACTING CYLINDER

Forcible surface

Air pressure port / supply port + Exhaust port / waste port

Pressurized chamber

DEpressurized chamber

Spring return

DOUBLE ACTING CYLINDER

Air pressure port / supply port + Exhaust port / waste port

Forcible surface

DOUBLE ACTING CYLINDER

Air pressure port / supply port + Exhaust port / waste port

Air pressure port / supply port + Exhaust port / waste port

CONTROL ELEMENTS / ACTUATING DEVICES

Logic Valves / Directional valves

Two pressure valve

Shuttle valve

M/n valves

M : Number of ports N : Number of direction set / position

Valve nomenclature

Port designation (ISO-5599-3)

Actuation option

Actuation option

Actuation option

Actuation option

Non return valves

Linear actuators

Non return valves

Single acting direct actuating

Double acting direct actuating

Component designation

Component designation

System circuit diagram