Trivium Packaging | DWI Cans - Sustainable Fast Production Cans

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DWI – Draw Wall Ironing

Trivium’s DWI technology is food safe and ideal for standard food cans that are produced in high volumes. DWI cans are a great choice for wet foods, reducing the risk of leakage due to their production style.

speed

Very fast production

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Material efficiency in production

straighten

Low cost

square_foot

Food safe

recycling

Closed cans require only two pieces: the body and an end

recycling

Reduced risk of leaking cans as the bottom is an integral part of the can

DWI Cans

Advantages and Specifications:

speed

Very fast production

autorenew

Material efficiency in production

savings

Low cost

lunch_dining

Food safe

build

Closed cans require only two pieces: the body and an end

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Reduced risk of leaking cans as the bottom is an integral part of the can

palette

No direct print capabilities

straighten

Available in diameters of 65mm, 73mm, 83mm 211mm, 300mm and 307mm (varies by region)

construction

Available in tinplate only

extension

Compatible with EOE, EPL and OT ends

How it’s made

Stage One

Steel strip arrives at the can manufacturing plant in large coils.

The steel strip is lubricated and then fed continuously through a cupping press, which blanks and draws thousands of shallow cups every minute. Each cup is rammed through a series of tungsten carbide rings, re-drawing the cup to a smaller diameter and thinner walls while increasing the height.

Cans are trimmed and cut to a precise, specified height. The surplus material is recycled and the can bodies are washed and dried, removing all traces of lubricant in preparation for coating internally and externally.

How it's made

Stage Two

The cans are coated externally by passing through a waterfall of clear lacquer which protects the surface against corrosion and then dried in an oven.

The cans are passed through a flanger which flanges the top of the cans outward to fit with the end after the can is filled.

Cans are then passed through a beader where the walls of the cans are imprinted with a beading pattern that gives them additional strength.

Every can is tested at each stage of the manufacturing process. In the final stage, they pass through a light tester, which automatically rejects any cans with imperfections.

How it's made

Stage Three

The inside of the cans is sprayed with a protective coating and they are dried in an oven.

The finished bodies are then transferred to the warehouse to be palletised and dispatched to the filling plant.

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