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The term “can” refers to a container with a roll seamed lid, also called an end. Cans may be steel or aluminum, plastic, board or composite material. There may be 2 pieces with the body and one end formed of a single piece or 3 pieces with both ends seamed. They may have a straight sided, tapered or shaped profile. They are usually round but specialized machines can
They are usually round but specialized machines can seam oval, square or other shapes. Can seaming machines run at speeds from a few cans per minute to several thousand. 1 head machines typically run at speeds up to 90cpm maximum depending on can and lid.
Cans enter the seaming machine single file. They are synchronized with the seaming head via lug chain, starwheel or timing screw.
Once under the seaming head the lid is mechanically “seamed” to the can body in a 4 step process. Once sealed, cans can only be opened by cutting the seam, end or body. This makes cans highly tamper resistant.
The can seaming process is:
1 – The can end is placed on the can body. Some can seamers do this before the can comes into the seaming station. Others, especially 1 head seamers, Shuttle the end horizontally out of a magazine and onto the can body when it is in the seaming station.
2 – It is generally easier to raise the can into the seaming rolls than lower the rolls onto the can. After the can and lid have been indexed under the seaming head it is pushed up against the pressure block. This pushes the body and lid tightly together.
Some seamers rotate the can against the seaming rolls. An alternative is to have the rolls in a large, spinning head which allows the can to remain stationary.
3 – The first seaming roll is pressed against the end. This causes the edge of the end to roll over the body flange forming a “hook”. At this point, the end and body are loosely joined.
4 – The second seaming roll irons the seam flat. This forces a tight seal between body and end. After the second seaming, the can is lowered and indexed out of the seamer.
Can seaming is a proven and inexpensive technology. It provides a rugged and tamper-proof container for virtually any product.
American Can, Model 006, automatic, single head, seamer for 401 can. Equipped with star wheel to lugged chain container in feed, four roll, double seam head and no-container / no-lid. Speed dependant on materials, application and machine configuration.
OAD: 48"L x 53"W x 73"H
Canco Model 006VAC, automatic, single head, vacuum can seamer. Rated from 10 to 45 cans per minute – depending on materials and application. Can size range: 202 to 404 in Diameter x 2-7/8" to 5-5/8" in Height, and special from 1-7/16" to 7" in Height with proper change parts. Equipped with (4) roll, double seam, single seaming head, star wheel in feed, hand crank height adjustable, no-can / no-lid and 3 Hp motor drive. Mounted on 32" x 34" cast iron platform style base frame with 32" high in feed and discharge conveyors. Change parts required to accommodate size ranges.
Paddle packer available for additional cost.
OAD: 55"L x 53"W x 74"H
Canco Model 08, automatic, atmospheric seamer rated from 10 to 40 containers per minute – depending on materials and application. Capable of handling containers from 307 to 603 in Diameter; 214 to 708 in height with proper change parts. Equipped with disc to star wheel infeed, 8" high lid magazine, automatic lid feed, 32" discharge height, can marker and no can no cover detector. Currently set for 404 diameter container.
OAD: 81" L x 67" W x 86" H
Canco Model 08, single head, vacuum can seamer rated from 10 to 40 cans per minute – depending on materials, application and machine configuration. Size range: 307 to 603 in Diameter; 214 to 900 in Height. Equipped with star wheel infeed, four roll double seam single seaming head, no-can / no-lid, vacuum regulator and e-stop. Mounted on platform style base frame. Change parts required to accommodate size range. Currently set for 603 diameter can.
OAD: 68" L x 57" W x 77" H
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