There is a wide variety of stainless steel drums, and many categories can be sub-divided again and again to create a very specific type. One important classification of a drum is the ‘head’; there are two types, tight head and open head. The tight head steel drum has both ends seamed and no removable lid and access is through fittings, usually 2” and ¾” in the top. The open head steel drum has a removable cover and a seamed bottom. Closure is made with a bolt or lever ring. Both drums types can be United Nations (UN) and Department of Transportation (DOT) certified for hazardous materials or dangerous goods.
Different tools or special procedures are used depending on the materials used to manufacture the drums, but both types start with a welded cylinder. Next, on a tight head drum, both ends are flanged and thus permanently sealed, so both ends of a tight head drum look like a “bottom.” Open head drums have one end flanged which becomes the bottom of the drum and the other end is curled to create a seat for the removable head. Typically for tight a head drum there are only two hoops added along the vertical drum equidistant from the middle, while an open head drum may have three hoops in varying distances along the vertical side of the drum. These hoops add strength to the drum performance. An open head drum may also have a gasket or fittings in the covers.
In almost any industry where contents need to be shipped, drums are used, therefore it is important to make sure contents are being stored in the proper type of drum. Open heads are best used for solids and viscous liquids. When items such as honey, paint, or even radioactive waste are being shipped or stored an open head drum should be used. Tight heads are best used for liquids, contents that can be easily drained through the fittings, such as flavors, fragrances, or beverages.
Whatever is being shipped, the proper drum makes all the difference in reducing risk and safe passage. Keeping transport clean and safe is the main objective for any carrier, and the right drum helps ensure a successful delivery. Skolnik Industries is dedicated to giving its customers exceptional quality and service. You can find more information on either drum on our website.