An efficient and clean way to handle collected dust for many shops is to use plastic bags. We have the two most common sized bags made for us from a high density poly-resin. A double sealed straight bottom provides maximum reliability. Available in rolls of 50 bags, or individually for hobbyists and other low volume users.
Cinch belts and spring-loaded clamps can offer a convenient way to quickly attach and remove filter and collection bags from dust collectors and 55 gallon drums. However, it's been our experience that their ability to seal air-tight and hold up under higher pressures is not always predictable. Check out our line of high quality 1/2 in. stainless steel band clamps, many with quick-release screws. For critical situations, use 1-1/4" wide x 1/4" thick self-adhesive High Density Closed Cell Foam Gasket tape, available by the foot.