Devcon® R-Flex® Belt RepairBack to
||A large rock quarry in Massachusetts|
R-Flex® Belt Repair Kit
A large rock quarry has vulcanized their longest belt that mines rock minus 6”. The vulcanized splice has torn at the bottom flap and has been catching on the wiper system causing the SBR belt to tear even further. This belt run 6 days a week, 11 hours a day moving sized rock to their main feed pile. When the top skin of the SBR belt begins to peel back further, down to the piles, it substantially weakens the belt. Every rotation through the wiper system cause the SBR flap to tear longer. The maintenance crew has not tried any other repairs on the belt since the vulcanized splice. Their option would be to re-splice the belt again which would be a 24hr downtime and cost more than the Devcon® R-Flex® for $454.
We recommended using Devcon® R-Flex® to repair the large tear near the vulcanized splice. We cut away the SBR belt flap back to ensure good adhesion to pile. Then we abraded with a wire brush, 2-4 inches around the area where we cut the belt and inside on the pile to remove any contaminants from the surface. We applied Devcon Surface Conditioner to all the areas: around the top edge of the torn area (2-4 inches) and inside the recessed area on the piles. The piles will soak up the surface conditioner so we had to be certain we applied everywhere. We poured the Devcon® R-Flex® onto the belt and allowed it to fill the recess (about 1/4”) and then poured some onto the overlap 2-4 inches to ensure adhesion to the SBR belt. We then smoothed out the leading edge so it wouldn’t get caught on the wiper system. After 8 months the belt is still up and running. Customer is very happy.
Conveyor Belt Tear
Conveyor Belt Repair using R-Flex