How Does a 12 Feeders Full Computerized Seamless Underwear Knitting Machine Raise Output

When a seamless underwear factory reaches the limit of an 8-feed machine the next step is usually a move to 12 feeds. The 12 feeders full computerized seamless underwear knitting machine adds four more knitting points per revolution which makes the time to produce each garment shorter. For B2B buyers considering equipment, it is not a case of more feeds being better, but whether the additional capacity fits the order profile, and whether the supply of yarn can keep up.

The GD-SNJ12 is developed on the basis of the previous GD-SNJ08, with better fastness of sinker and more flexible maintenance system. The machine knits plain, rib and tuck stitches. The gain in capacity is due to the increased number of loops per cycle. Cylinder diameter is from 13 to 17 inches and the needle count is from 1056 to 1536 depending on the configuration. A 12-feed layout means more yarn packages are feeding the cylinder at the same time, so the machine makes more fabric in the same running time ... if the yarn feed stays steady.

Each of the twelve feeds demands simultaneous demands upon the yarn supply. The GD-SNJ12 solves this with 27 electric yarn break sensors to detect broken or missing yarn at the feed points. The machine has a 16 level needle selector in WAC or BENZ configuration. It accepts imported Jacquard needles, Sinker needles and GROZ or Samsung needle types. If a feed runs out of yarn or a package has a thin spot, the sensor stops the machine before the defect propagates. This is the sort of monitoring that makes the 12-feed speed practical, and not risky, for factories running fine-gauge fabrics.

The machine has a maximum speed of 80–85 rpm, consumes 1.3 kW and has a weight of 530 kg with a footprint of 2400×2400×2800mm. For buyers of a 12 feeders full computerized seamless underwear knitting machine, practical checks include whether the cylinder diameter and needle count are appropriate to the fabric weights in the order book, whether the local service network can support maintenance, and whether the yarn supply can provide steady tension across all 12 packages. The 12-feed format is better suited to factories with consistent high-volume orders; a factory doing lots of small-batch style changes might find an 8-feed machine easier to handle.