How to Maintain AAC Block Making Machine to Extend Service Life
The AAC block making machine is the core equipment in autoclaved aerated concrete block production lines. Stable operation directly determines daily output, product quality and overall factory profit. Many brick plant owners focus on production capacity at the time of purchase but ignore regular maintenance, which leads to frequent breakdowns, unexpected downtime and shortened machine lifespan. Reasonable daily and periodic maintenance can reduce failure rates and keep your AAC production line running steadily for years.
Daily routine inspection is the first line of defense for AAC block making machines. Before starting the machine every day, operators need to check the lubrication status of bearings, guide rails and transmission parts. Insufficient lubrication will cause severe wear on moving components. Operators should also check all pipelines for leakage of slurry, compressed air and hydraulic oil. Loose bolts on the mold frame and cutting system also need visual check. Cleaning residual AAC slurry after each shift is essential. Hardened concrete residue will damage the precision of cutting knives and molds if left uncleaned.
Weekly maintenance focuses on wearing parts and electrical systems. Check the cutting wire of the AAC cutter, replace bent or worn wires in advance to avoid uneven block cutting size. Inspect the hydraulic station, filter and pressure gauge. Dirty hydraulic oil will reduce the stability of mold lifting and demolding. For electrical cabinets, remove accumulated dust to prevent short circuits caused by dust and moisture. All safety limit switches should be tested to guarantee safe operation during automatic cycles.
Monthly maintenance covers deep inspection of key units. Check the vibration performance of the pouring mixer, and repair the stirring blades if they are worn. Inspect the trolley and mold sealing strips, damaged seals will cause slurry leakage and affect the density of AAC green cakes. Fasten loose connection bolts of the whole production line. It is also necessary to calibrate the size of the cutting machine to ensure finished AAC blocks meet dimension tolerance requirements.
Annual overhaul is necessary for long-term operation. Empty the old hydraulic oil and replace with new oil. Carry out full wear measurement on gears, shafts and rollers. Repair or replace heavily worn components during the off-production period. Test the whole line linkage, including pouring, resting, cutting and trolley conveying. This step can discover hidden mechanical problems before peak production seasons.
Several maintenance mistakes should be avoided. Do not wait until the machine breaks down to start maintenance; emergency repairs always cost more and delay orders. Do not use non-standard replacement parts. Poor quality spare parts may damage the matched main machine components. Operators must receive professional training. Improper operation will bring extra load to the AAC block making equipment.
A well-maintained AAC block making machine can maintain stable output and consistent block quality. It helps factory owners cut maintenance costs and avoid sudden production shutdown. If you are planning to build or upgrade an AAC block plant, ask your equipment supplier for a complete maintenance manual and professional operator training service.




