LUFF INDUSTRIES of Calgary has patented a conveyor roller sealing arrangement that resists corrosion.
The designers at Luff know that when an underground roller fails, not only is it costly to replace the failed unit, but conveyor downtime costs mount quickly. Traditional rollers, which have a shaft installed with two open bearings and seals, can fail due to contamination of the bearings coupled with the stress load. They came up with a sealing arrangement that incorporates a pressed polymer end cap instead of the failure-prone steel-welded end cap. Luff's polymer cap is durable, lightweight, and resistant to corrosion. The manufacturing process also allows the roller to be dipped in paint to add further corrosion resistance inside and out.
The polymer-containing rollers have been in use at IMC GLOBAL's K2 potash mine near Esterhazy, Sask., for over a year and are still going strong. Traditional rollers in the same application failed regularly every six to eight months.
Learn about all of Luff's conveyor products at Luff