The dimensions and equipment of the drums comply with ISO 15750, produced from thin sheet metal in accordance with ISO 3574 with a nominal volume of around 200 litres. The body seams of the drum shells are machine-welded and each is equipped with 2 circumferential rolling hoops. There are also smooth-walled variants in the open head drum area for special applications, for example for the use of round bottom bags or inliners.
The joints between tops and lids are folded by machine. The closures in the top or lid are positioned according to ISO 15750 to ensure automated filling processes. As standard, each with a G 2″ and a G 3/4″ closure in the top bottom. Other variants or positioning are possible. Closure plugs made of steel, galvanised, or lacquered with various drum interior protection lacquers. Other sealing plug variants made of PP or PA (nylon) are possible. The seals of the sealing plugs are made of PE, EPDM, NBR (nitrile), FKM (Viton) or PTFE (Teflon), depending on the intended use. For special applications, aeration and venting devices can be integrated into the closure components, for example for hot filling. The lids of the open head drums are fitted with EPDM seals and securely closed with galvanised steel clamping rings.
To secure the drums and prevent tampering, there are various ways of securing them at their closures with first-owner seals made of sheet metal or plastic, and the clamping rings of open head drums can also be secured with first-owner splints. Depending on the intended use / product to be filled, the drums are either unpainted on the inside (raw sheet metal) or equipped with various drum interior protection paints. The inner containers of the composite drums are made of HDPE (polyethylene) and have PP sealing plugs as standard.