Hildering Packaging

Tin Can Specialist

Plastic closures for canisters are available for DIN and REL apertures. They are available in various models:

Ø Type Indus­trial caps Child­proof caps Pull-up spouts Brush caps
24 mm Standard REL / DIN REL / DIN DIN DIN 1)
Aluseal - REL / DIN - -
Radiated - - - -
32 mm Standard REL / DIN REL / DIN REL / DIN DIN 2)
Aluseal - REL / DIN - -
Radiated - - REL / DIN -
42 mm Standard REL / DIN REL / DIN REL / DIN DIN 3)
Aluseal - REL / DIN DIN -
Radiated - - REL / DIN -
57 mm Standard DIN - REL / DIN

A child-proof pull-up spout is also available for diameter 42 mm.

Colours: standard red and white; other colours optinal.

1) Brush length 86 mm
2) Brush length 110 mm
3) Brush length 75 mm, 104 mm, 144 mm etc.

REL opening

REL aperture
REL aperture
DIN aperture
DIN aperture

The major users in the chemical market have requested a change in the type of filling aperture for the canisters. This type of filling aperture, called REL (Restlos EntLeerbar) has been used in the Netherlands, the UK, Germany and Scandinavia for several years now. The ‘old’ type of filling aperture was the DIN (Deutsche Industrie Norm). Over the past few years we have provided both types of filling aperture. However, almost all sizes and types of canisters now definitely have the REL filling apertures.

Three parties initiated this change: the filling companies, the tin manufacturers and the plastic lid suppliers. The demand from the market actually arose because of the desire to empty the tins better (Restlos EntLeerbar). That is why the REL filling aperture was designed. This filling aperture has a projecting rim (contrary to the DIN opening) which improves pouring from the opening. In additional advantage is that the lid is no longer pressed directly into the flat top, but pushed over a rim, so that incorrect placement does not immediately damage the flat top.

REL lids can also be far better processed mechanically than DIN lids. The large industrial fillers in particular therefore switched to the REL closure years ago. All the producers involved (tin and plastic lid) have set up their manufacturing lines for REL. That means that if DIN-producing parts (moulds) break down, repair is no longer an option, as it costs money. Another advantage is that the combination of REL with certain lids can have UN approval, while that is not possible with DIN. The moment has come: the REL filling aperture has replaced the DIN. You can recognize REL from its raised “collar” around the filling aperture, in contrast to the DIN opening where the “collar” was formed downwards.

Because the filling aperture is different, the base of the lid has also been changed. REL lids also close differently by hand: you can push a REL lid more easily than a DIN lid (because the filling aperture is firmer). You can also clearly hear when the REL lid is properly placed, which is not possible with the DIN lid: this prevents you from pushing the lid too far (which used to happen with DIN lids). Perhaps now is the moment, if you seal a large number of tins yearly, to consider putting together a simple lid-press plate. It certainly does not have to be an expensive matter.

REL and DIN closures ≡ Hildering Packaging