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Actually, there is need for AIR reservoir in industrial pneumatics systems. Hydraulics can HANDLE more powerful APPLICATIONS than pneumatics for the same OVERALL DIMENSIONS, or can be more compact for the same power.

Actually, there is need for air reservoir in industrial pneumatics systems. Hydraulics can handle more powerful applications than pneumatics for the same overall dimensions, or can be more compact for the same power.

PNEUMATIC system is a system that uses air to power SOMETHING. For instance, have you seen the tube systems at bank drive-up tellers? Air is USED to push the TUBES back and forth from the teller to the customer.

Pneumatic system is a system that uses air to power something. For instance, have you seen the tube systems at bank drive-up tellers? Air is used to push the tubes back and forth from the teller to the customer.

Any system needs redundancy in work needs pneumatics, because the COMPRESSOR of the pneumatic system has PERIODICAL operations (intermittent work, not as hydraulic pump). The COMPRESSED air could be accumulated in tanks with high pressures and used even if the compressor failed.

Pheumatic system is use in an APPLICATION where the load is light. Because if the load is heavy, pheumatic system should not be use & hydraulic system should be use instead.

Any system needs redundancy in work needs pneumatics, because the compressor of the pneumatic system has periodical operations (intermittent work, not as hydraulic pump). The compressed air could be accumulated in tanks with high pressures and used even if the compressor failed.

Pheumatic system is use in an application where the load is light. Because if the load is heavy, pheumatic system should not be use & hydraulic system should be use instead.

• Working FLUID: Pneumatics use air, Hydraulics use Oil
• Power: Pneumatic power less than hydraulic power
• Size: P components are smaller than H components
• Leakage: LEAKS in hydraulics cause fluid to be STICKING around the components. In pneumatics, air is LEAKED into the atmosphere.
• Pneumatics obtain power from an air compressor while hydraulics require a pump
• Air is compressible, hydraulic oil is not

In designing, the saltation VELOCITY is USED as a basis for CHOOSING the design gas velocity in a pneumatic conveying SYSTEM. Usually, the saltation gas velocity is multiplied by a factor, which is dependent on the nature of the solids, to arrive at a design gas velocity.

For example: the saltation velocity factor for fine particles MAY be about 2.5 while the factor could be as high as five for course particles such as soybeans could.

In designing, the saltation velocity is used as a basis for choosing the design gas velocity in a pneumatic conveying system. Usually, the saltation gas velocity is multiplied by a factor, which is dependent on the nature of the solids, to arrive at a design gas velocity.

For example: the saltation velocity factor for fine particles may be about 2.5 while the factor could be as high as five for course particles such as soybeans could.

Hydraulics is suitable for higher forces & PRECISE motion than pneumatics. This is because hydraulic systems generally run at significantly higher pressures than pneumatics systems. Movements are more precise (repeatable) because hydraulics uses an incompressible liquid to transfer power whilst pneumatics uses GASES.

Pneumatic systems have some advantages too. They are usually significantly cheaper than hydraulic systems, can MOVE faster (gas much LESS VISCOUS than oil) and do not leak oil if they develop a leak.

Hydraulics is suitable for higher forces & precise motion than pneumatics. This is because hydraulic systems generally run at significantly higher pressures than pneumatics systems. Movements are more precise (repeatable) because hydraulics uses an incompressible liquid to transfer power whilst pneumatics uses gases.

Pneumatic systems have some advantages too. They are usually significantly cheaper than hydraulic systems, can move faster (gas much less viscous than oil) and do not leak oil if they develop a leak.