Can Closing Force Gages can lower scrap rates and set up time. 

If you press-fit can lid seams, use the Can Closing Force Gauges that's designed especially for your operation.
Once proper spring loads are established with the Can Closing Force Gauges, you can quickly and easily job-set multiple-station canning machines. This not only helps reduce costly set-up times, but proper spring loads virtually eliminate can scrappage.   
These Gauges come with and adjustable self-loading micrometer dial, calibrated in thousandths. This means you may accurately deflect spring-loaded can wear plates to any desired dimension.