The seaming machine is a special unit that allows you to tightly close the jars with various blanks. Even the simplest versions of such machines provide a sufficient level of reliability when rolling up, absolutely eliminating the penetration of air into cans, and with it dangerous bacteria.
Instruction manual
1
Seaming machines are divided into three main types. For example, you can buy a desktop roll-up machine with two rollers - a fairly massive box with clamping devices. To roll up the jar with its help, you need to cover it with a lid with a rubber ring and place it in this same box, placing it close to the stop clips, and then fix it in the socket by turning the screw. Then put the cartridge of the machine on the jar and very quickly, but gently press the handles several times in a row, so that the edge of the lid bends close to the neck of the container. In the end, it is necessary to roll the cover all the way in circular smooth movements of the handles.
2
Another type of seaming machines is a semi-automatic key. Such products are affordable and easy to use. The seaming process with their help is as follows: you must firmly press the lid to the neck of the can and turn the key in one direction (6-10 times) until you hear a characteristic click. The latter signals that the jar is tightly closed.
3
But the easiest to use is a seaming key of an automatic type - you need to put it on the cover, and then, turning in a circle, press its levers several times. This process will take you no more than 30 seconds - the lid is pressed to the neck of the can as a result of the action of special springs that are inside the key. Such a device is equipped with a special mechanism that protects the jar from chips, and the lids from various scratches, dents, etc.
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In addition to conventional seaming machines, today you can buy the so-called seaming-rolling units - combined models that can open cans and return the lids to their original form. The main difference between such devices and conventional seaming machines is the presence of special keys in the kit for removing covers and inserts for restoring them.
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You can choose absolutely any seaming machine, but at the same time remember that it must be of high quality and durable, have easily rotatable handles, which, in turn, must lie comfortably in your hand.
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In order to check how efficiently the can twist machine works, first of all carefully examine the lid - the presence of all kinds of tubercles or dents on the rim or on top is unacceptable. Then turn the clogged jar upside down. If you notice that air bubbles rise up from the lid or liquid flows out of the can, then the machine is working poorly and it is best to replace it with a new one.
