Inpro/Seal Expands Shaft Sealing Product Line For Powder And Bulk Applications With Articulating Shaft Seal That Handles Severe Radial Run-Out And Axial Shaft Movement

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Inpro/Seal expands shaft sealing product line for powder and bulk applications with articulating shaft seal that handles severe radial run-out and axial shaft movement. Provides the highest possible levels of shaft sealing.

Building on the ongoing success of their ability to positively seal equipment in dry powder and bulk process applications, Inpro/Seal company now offers two shaft-sealing systems for the containment of powders, abrasives, liquids and toxic vapors; the Air Mizer™-PS and the Articulating Air Mizer™- PS with upgraded design features.

The Air Mizer® Product Line
The Air Mizer® product line was developed to use minimal amounts of air pressure to seal shafts where dry particulates, powders and bulk solids are handled, processed, packaged and stored. They can be installed on screw conveyors, mixers, blenders, rotary valves, feeders, gates, clinker grinders, bucket elevators, diverters, scales, bagging machines, dust collectors, discharges, classifiers, screens, extruders, separators, shredders, sifters, gate valves, metal detectors, pulverizers, crushers, coolers, augers, transfer pumps, fillers and similar dry powder and bulk processing equipment.

Result Of Continuous R & D
The result of direct customer requests, input and feedback, continuous R&D and extensive field testing and trials, the Articulated Air Mizer-PS has all the features of the original Air Mizer™-PS and adds the ability to handle extreme shaft run-out and deflection, common in these kinds of applications to provide a seal that conventional methods simply cannot attain.

Ineffective Sealing Methods
Before the advent of the Articulating Air Mizer®- PS, end users had to deal with sealing methods that did not last because of shaft run out, including mechanical seals, lip/contact seals and packing. Mechanical seals work on a contact basis and are subject to excess wear on the seal faces as they make contact. Seal faces have been known to wear out in as little as 3,000 hours.

Fibrous packings are also subject to wear and short lifetimes from run out where packing in the stuffing boxes compress and create a leak path. Packing can soften to the point where powder can leak to the outside, causing environmental problems. Tightening may renew the seal, but only for a relatively short period of time.

Successful Product At Heart Of Air Mizer Seal
To counter the adverse effects of these sealing systems, Inpro/Seal took their compound labyrinth bearing isolator and modified it to incorporate air as an extra sealing solution. As with all Inpro/Seal Bearing Isolators, the original Articulating Air Mizer®- PS is a non-contact seal that avoids direct egress of the particulate material and assures the highest levels of performance. Its major innovation is the inclusion of a unique design feature that uses a solid wall of air that functions as a barrier for contamination and works to retain product where it should be -- in the equipment, not outside of it.

Improvements To Original Air Mizer
The improved Articulating Air Mizer®- PS offers all the same advantages of its predecessor including the ability to handle extreme shaft misalignment and deflection, common in these kinds of applications and provide a seal that conventional methods simply cannot attain. It was developed as a direct result of direct customer requests, input and feedback, continuous R & D and extensive field-testing. The improved Articulating Air Mizer®- PS now utilizes an air barrier directly on the shaft, allowing for unlimited axial movement without placing any stress or strain on the product. Without any rotating parts, the shaft "floats" in the seal attaining zero contact and zero wear.

Problem Solved
Working with shaft diameters of 1/2" - 36", end users obtain the latest in non-contacting technology with an air purge that accepts severe radial and angular shaft run out up to 1/4". It will help end users boost equipment reliability, reduce costs, extend sealing efficiencies and increase bottom line results, without equipment modifications.

Once installed, problems associated with shaft deflection, run out and misalignment that causes conventional seal faces to prematurely fail will become a thing of the past. Additional benefits include: lower maintenance costs, reduction in lost product, elimination of unscheduled downtime and the ability to meet regulatory needs. As with all Inpro/Seal products, same day shipping is available.

No Equipment Modification, Easy To Install
The Articulating Air Mizer™-PS, shaft seal is custom-engineered to suit individual applications and is easy to install as it conforms to existing clearances, boltholes and patterns for bearings and/or stuffing boxes. Split designs allow for installation directly on the shaft without the removal of couplings and end plates.

More Benefits
Additional benefits include: reduced energy consumption, lower maintenance costs, reduction in lost product, unscheduled downtime virtually eliminated and meet regulatory needs. As with all other Inpro/Seal products same day shipping is available.

About Inpro/Seal
Inpro/Seal Company is the originator and the world's number one manufacturer of bearing isolators, used to protect motor and pump bearings, machine tool spindles, turbines, fans, gear boxes, paper machine rolls and many other types of rotating equipment. Additional applications include the sealing, handling, processing, packing and storage of dry particulates, powders and bulk solids.

Over one and one half million of Inpro/Seal's original bearing isolator designs are in operation in process plants worldwide, where end users continue to report significantly reduced operating costs with increased productivity and reliability. Documented cases show that a plant can more than double the mean-time-between failure (MTBF) and reduce maintenance costs by at least half, with users reporting an extremely high ROI.

As the recognized global leader in bearing isolator technology, Inpro products are marketed to the aerospace, automotive, petroleum, refining, nuclear, power generation, metalworking, food processing, grain processing, chemical, water, wastewater treatment, metalworking, hydrocarbon processing, HVAC, pulp and paper, mining, mineral, ore processing and general industrial markets.

Interactive spreadsheets that calculate ROI, Contact Seal Energy Consumption and other costs are available at

For more information on the Articulating Air Mizer™-PS shaft seal, including a FREE brochure, contact Jason Putman at: Inpro/Seal Company, P.O. Box 3940, Rock Island, Illinois 61204. Phone numbers are: (800) 447-0524 or (309) 787-4971. Fax number is: (309) 787-6114. Website: or

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