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Air Operated Conveyors

Special Line Vacs
EXAIR manufactures special Line Vacs suited to specific application requirements. Configurations and materials can vary according to the application requirements.

Line Vac can be engineered to retrofit existing machinery. The Line Vac (shown right) has special flanges that permit direct mounting to a machine used in the manufacturing of silicon wafers for the semiconductor industry.

This flanged Line Vac is used to remove acidic vapors resulting from surface etching of the silicon wafer. Ordinarily, EXAIR’s Stainless Steel Air Amplifier would have been used since it moves much higher volumes of air. In this case, the Line Vac was the better choice since the exhaust piping was long with many bends that would have created high back pressure. The directed nozzles of the Line Vac overcame this downstream resistance.

A special 3/4" (19mm) Stainless Steel Line Vac evacuates fumes from a silicone wafer etching operation.
A special 3/4" (19mm) Stainless
Steel Line Vac evacuates fumes
from a silicone wafer etching
operation.
This special Line Vac is used to fill small packets.
This special Line Vac is used to fill small
packets.

Filling small packets with fine powders or granulated materials such as salt or sugar is done using small tubes that are gravity fed from a hopper. This works well when the material is dry, however, moist materials would often pack the tube, blocking the flow. The special funnel shaped Line Vac (shown left) created a suction on the existing tube to permit continuous product flow.

The special flanged Line Vac (shown right) is made of PVDF, a plastic that has a high chemical resistance. In this case, the 1-1/2" (38mm) Line Vac was regularly exposed to a chloride wash, a chemical that would corrode stainless steel. QF flanges were provided on each end to allow easy removal of the conveying hoses for cleaning purposes.

This special flanged 1-1/2" (38mm) Line Vac is made of PVDF to withstand a chloride washdown.
This special flanged 1-1/2" (38mm)
Line Vac is made of PVDF to
withstand a chloride washdown.

A special miniature Line Vac used to vacuum microscopic debris measures the same size as a penny!
A special miniature Line Vac used to
vacuum microscopic debris measures the
same size as a penny!

The special miniature Line Vac with barb fittings (shown left) was designed for a manufacturer of integrated circuit chips. It was used to remove microscopic debris during the chip making process. This small Line Vac generated high vacuum and was the perfect configuration for the confined working space. It has also been used by another manufacturer to vacuum liquid and chips from small drilled holes.



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