S-A23L Manual Seamer is specially designed for round can closing. Operator put end on flanged can and put them on the lifter plate. Then, operator press a bottom lever to make lifter plate lift can up to touch chuck. Can is turned by turning chuck. Manual pushing required to make first and second seaming roller approach the chuck respectively. Seamed can is carried away by hands. Seam quality meet international standard. Simple structure , easy for operation and maintenance.This seamer is absolutely required for food canning laboratory.