Can Ends: A Guide to Different Types and Specifications
Can ends are the metal lids that seal the contents of a can. They come in different types, sizes and shapes, depending on the product and the packaging design. Can ends are also known as easy open ends, beverage ends, peel off ends, penny lever ends, sanitary ends, etc.
In this article, we will explore some of the common types of can ends and their specifications. We will also look at some of the factors that affect the quality and performance of can ends, such as material, coating, opening mechanism and environmental impact.
Types of Can Ends
There are many types of can ends available in the market, each with its own advantages and disadvantages. Some of the most popular types are:
- Aluminum Easy Open End: This is a type of can end that has a ring pull tab that allows the consumer to open the can easily without a can opener. Aluminum easy open ends are widely used for beverage cans, such as soft drinks, beer, juice, etc. They are also used for some food products, such as tuna, pet food, etc. Aluminum easy open ends are lightweight, recyclable and corrosion-resistant. They can also be colored or printed to enhance the visual appeal of the product.
- Tinplate/TFS Easy Open End: This is a type of can end that is made of tinplate or tin-free steel (TFS), which is a thin steel sheet coated with tin or chromium. Tinplate/TFS easy open ends are similar to aluminum easy open ends in terms of opening mechanism, but they are heavier and more prone to rusting. They are mainly used for food products that require high barrier properties and long shelf life, such as canned fruits, vegetables, meat, etc.
- Peel Off End: This is a type of can end that has a plastic or aluminum film attached to the metal lid. The consumer can peel off the film to access the product inside the can. Peel off ends are usually used for dry or powdered products, such as coffee, milk powder, spices, etc. They provide a good seal and protection against moisture and oxygen. They can also be resealed after opening.
- Penny Lever End: This is a type of can end that has a small lever attached to the metal lid. The consumer can lift the lever with a coin or a similar object to open the can. Penny lever ends are mostly used for oil products, such as olive oil, cooking oil, etc. They provide a tight seal and prevent leakage. They can also be resealed after opening.
- Sanitary End: This is a type of can end that has a smooth and flat surface without any opening mechanism. The consumer needs a can opener to open the can. Sanitary ends are mainly used for food products that require high hygiene standards and sterilization, such as baby food, soup, etc. They provide a strong seal and prevent contamination.
Specifications of Can Ends
Can ends have different specifications depending on their type, size and shape. Some of the common specifications are:
- Diameter: This is the measurement of the width of the can end across its center. It is usually expressed in millimeters (mm) or inches (in). For example, a 202 can end has a diameter of 52 mm or 2.05 in.
- Height: This is the measurement of the thickness of the can end from its top to its bottom. It is usually expressed in millimeters (mm) or inches (in). For example, a B64 can end has a height of 6.4 mm or 0.25 in.
- Curl: This is the measurement of the curved edge of the can end that attaches to the can body. It is usually expressed in millimeters (mm) or inches (in). For example, a CDL can end has a curl of 2 mm or 0.08 in.
- Countersink: This is the measurement of the depth of the recessed area in the center of the can end where the opening mechanism is located. It is usually expressed in millimeters (mm) or inches (in). For example, a LOE can end has a countersink of 5 mm or 0.2 in.
- Opening Force: This is the measurement of the amount of force required to open the can end by pulling the tab or peeling off the film. It is usually expressed in newtons (N) or pounds-force (lbf). For example, an aluminum easy open end has an opening force of 10 N or 2.25 lbf.
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