Dougie
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Hyraulics deal with fluid media and is not as compressible pneumatics, which deals with air. Hence hydraulics is better for precision motion transmission.
10 months ago
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ultimate
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Hydraulics relates to fluids and Pneumatics to gas. Any system working on fluids is called hydraulic and gas (air) pneumatics. The ram and piston (shinining on a forklift or caterpillar bulldozer is working on hydraulics. The oil is pressurized by a pump (gear pump or rotary pump) and then let to pull or push or a micron finished rod inside a cylinder leakprrof of which is done by oil seals and `O' rings so that the work is done by the piston (rod) as intended by the designer.
10 months ago
Source: From knowledge gained by learning at college and work.
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Linchpin
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Hydraulics is moving and operating equipment with oil under pressure, pneumatics is air under pressure.
10 months ago
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modikavan
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hydraulic will apply for high load application
pneumatic apply for low load application
pneumatic works faster than hydraulic
hydraulic needs oil whereas pneumatic needs air
hydraulic is used for very precise application than pneumatic like CNC
10 months ago
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