SIGMASTAR

The SigmaStar machine works by means of dies that weld 3 short gloves at the same time. You can start from tubular or V folded film, or from 2 rolls of flat film. Film can be LDPE, HDPE, cast PP, EBA, EVA or EMA copolymer, according to the quality of the product you want to obtain. Minimum film thickness 10 microns, maximum 80 microns.

The machine pulls the film, welds the gloves, carries away the waste and places the gloves on a table, in a pre-counted quantity. All operations are fully automatic.
By changing the sealing head you can make all sort of gloves, and many other things, such as disposable shoe covers, much used by doctors and veterinarians (click here to see some of the items the Sigmastar can make).

Film is pulled under the sealing head that makes 3 gloves per stroke. Gloves and waste are forwarded by the machine’s conveyor belt, on which they adhere slightly along the seal.
Waste is pulled away by the waste removal unit, while gloves are picked up by the automatic collecting device, that places them on the take-off conveyor belt.

On reaching the pre-set quantity the welding machine stops briefly while the take-off conveyor belt carries the 3 stacks of gloves out of the machine’s range. The machine resumes its operation, while workers can take the stacks of gloves from the take-off belt and pack them.
Average output is 50 gloves per minute for gloves that have a maximum length of cm 65 from tip to wrist.

VETERINARY GLOVES

Veterinary gloves must be cm 84 long. They are therefore designed across the die, as per sketch. This placement allows to obtain gloves that are ready to use, but only one glove is made by each stroke.
Strokes are timed fast so that there is a little waste and a reasonable speed.  Handling such big gloves is however a bit awkward  and average production does not exceed 1200 gloves per hour.