Friction Cap Tighteners

Written by Sierra Rein
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Ask your local packaging worker and he will tell you that a lot of pain and discomfort has been avoided thanks to automatic friction cap tighteners. By utilizing a mechanized method for screwing or pressing down snap-on caps, the human element need not be present. Indeed, a lot of medical conditions like carpal tunnel syndrome, due to repetitive twisting and hammering motions, have been done away because of these amazing machines.

Most friction cap tighteners are meant for rigid plastic and metal or semi-rigid plastic. The sealing action comes mainly from the friction between the neck (or spout) of the container with the inside lip of the cap. The cap is slightly smaller in diameter than the neck, but is flexible enough in design and material to pop over or screw around the neck to create a tight fit.

The companies that benefit from friction cap tighteners in particular are those found in the beverage, chemical, pharmaceutical and petroleum industries. This is because the friction cap is highly effective for sealing liquids and powders for storage, transportation and consumer consumption. However, several gasses, solids, and dangerous chemicals require extra special care in the closing and insulating process and should not be packaged with friction caps.

Automatic vs. Manual Friction Cap Tighteners

Automatic tighteners are faster, can include cap placement devices along the line, and sometimes require no operator to function. However, they are quite large machines and can only work under large factory conditions. Manual, pneumatic-powered cap tighteners are small in size and can be hung easily above a workstation and operated by hand over a small batch of containers.

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