Customer needs can vary depending on the product involved, daily usage requirements, and cost. MCR has available four styles of drum locking rings for 30 gallon and 55 gallon drums:
Plain Lug Bolt Rings are dependable and economical. They are for non-UN/DOT regulated products and require a 5/16" or 3/8" diameter bolt and nut.
UN/DOT Bolt Rings are used for hazardous waste drums and meet all requirements for such. A 5/8" diameter bolt and nut are required.
Lever-Lock Rings are great for frequent open and closing of steel drums. No tools are required for daily operation. A wire tie or other seal may be used to lock long inside lever handle in place.
Lever-Latch Rings are made for fiber and plastic drums. Again these lever-action rings are ideal for frequent usage, require no tools, and can be sealed with a variety of seal types.