2023

Structural features and advantages and disadvantages of the bag sewing machine

With the boom in the world of logistics and transport, the demand for polybags, bale bags, etc., outer packaging bag products is gradually increasing and in order to meet the demand for their use, industrial sewing machines for polybags have emerged.

As the material to be sewn by the bag sewing machine can be thick or thin, the important parameters include, in addition to the sewing speed, the sewing thickness, the lifting height of the presser foot, the turning capacity, etc. The bag sewing machines are generally large machines, which require excellent fatigue resistance and sewing stability due to the limitations imposed on the machine by the sewing thickness. In addition to this, most of the container bag sewing machines are differential feed or synchronous feed machines, the characteristics of which greatly improve the sewing life of the sewing machine.

There are pendulum and rotary bobbin sewing machines, which have their own advantages and disadvantages. The advantages and disadvantages of the pendulum sewing machine: the metal housing of the pendulum sewing machine is highly durable, noisy, subject to thread jamming, high thread replacement frequency and relatively low running speed (the old pendulum sewing machine was subject to the above problems and due to continuous innovation the pendulum machine has successfully solved the noise and running speed problems).

The advantages and disadvantages of the rotary shuttle sewing machine are: the use of resin material, low wear resistance, low noise level, reduced thread jamming due to the material and construction and faster running speed.

The thickness of the material to be sewn varies from one construction to another, so choose the right model according to the material before sewing.

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