• No high heat build up and wear from the large surface area of packing riding against the bar.
• No grinding the powder into the bar causing erosion and thus creating a larger pocket requiring tightening of the packing.
• No maintenance required for routine adjustments to maintain correct packing tightness.
• No maintenance for routine removal and replacement of packing.
• No packing to trap product from one batch and release it into a subsequent batch causing cross contamination.
• No following gland with its threaded rods, double nuts and gap to trap powders that remain unblended and create a cleaning problem.
• No degraded packing to shred and reenter the product as contamination.
• No degraded product having been subjected to the heat and wear in the packing area becoming discolored and then migrating back into the batch as contamination.

Low Maintenance Design

1. Lip seals last a significant number of batches and many hours of operation.
2. Lip seals are easily cleaned to prevent cross contamination when re-used with different products.
3. Modified lock collar that the oil seals ride on rather than abrading on the shaft. As the seals wear into the lock collar, it can be replaced easily with out major shaft damage.
4. Both the lip seals and the face they ride against are replaceable parts.
5. Bolt-in exchangeability with existing packing gland designs.

Clean, Simple, Effective Design

1. Clean, aesthetically pleasing outside with minimal powder hang up points.
2. Minimal seal contact area for negligible friction and heat build-up.
3. Set screws are covered with cap screws to prevent pockets where powder can gather and cake.
   

Redundant Design:

1. Primary lip seal with inner concentric back-up, each fully capable of stopping the powder, each individually energized to ensure full and continuous contact
2. A Teflon wear strip ensures proper lip seal alignment
3. A "third" lip seal is designed to keep cleaning water from entering the bearing area.
4. In units equipped with an air purge, a special set of modifications to the design not only accommodates its continued use but further utilizes the pressure provided to energize the third cleaning seal in a closed position.
5. Back up oil seal to prevent any powder or cleaning solution from getting into the bearing area.
6. Separate reverse facing oil seal to prevent any bearing lubrication from escaping into the blender to contaminate the product
7. With the bearing lubrication contained, it is now safe to pack the bearing with grease which both lubricates the bearing but also acts as the final and absolute stop for any migrating powders.
8. Multiple static O-ring seals against the shaft to prevent powder from migrating along the shaft or housing into the bearing area and to prevent bearing lubricant from migrating along the shaft or housing into the product.