Belzona Repaired Damaged Mixer Agitator Driveshaft And Keyways

Industry:

Food & Drink (FOOD)

Application:

Mechanical Power Transmission (MPT)

Customer Location:

Missouri, USA

Application Date:

November 2005

Application Situation:

Mixer agitator driveshaft and keyways

Problem:

Acid damaged shaft lost 1/2" on the diameter, keyway and key  were destroyed. Socket keyway was minimally damaged, but neeeded to be tightened up. Obsolete drive was built in 1965 and the MFG has been sold twice. Therefore, no parts or prints are available. Mixer shut down. It was imperative that it would be operated in only two days.

Products:

Belzona 1111 (Super Metal)

Belzona 9411 (Release Agent)

Substrate:

Carbon steel and stainless steel

Application Method:

The application was carried accodance to the modified version of Belzona Know-How leaflet system MPT-2.  Belzona 1111 was used to build up the shaft diameter and also applied inside the socket and around the new key to fill the keyways. While still wet, the shaft was carefully dropped into the agitator socket keeping the key tight in both keyways.

Belzona Facts:

The only alternative was to strip the drive and have a new shaft made from the damaged one, which would involve shutting the production line down for 7-10 days. A replacement complete drive unit (if it could be found) would still have required the production line to be shut down until it was delivered and installed. Following the quick Belzona application, equipment was started up on time and was operating perfectly.

Photographs Description

1. Mixing tank

2. Damaged drive shaft

3. Agitator socket

4. Ready for assembly