How to choose high quality differential lockstitch sewing machine?

As a sub-category of lockstitch machine, differential lockstitch sewing machine plays a key role in making high-quality clothes and improving the quality of clothes.in order to regulate the production and sales of differential sewing machines, the industrial standard "industrial computer-controlled differential feeding high-speed lockstitch sewing machine" was issued on March 25, 2021, and will be implemented on July 1, 2021.

At present, there are more enterprises producing differential lockstitch machines in China.in order to understand and master the production, marketing, and quality level of the differential lockstitch sewing machine, and guide the healthy development of the industry, in view of the current uneven quality of the differential lockstitch sewing machine, the national sewing equipment industry information center asked the "national sewing machine quality inspection and testing center" about the quality inspection of the differential lockstitch sewing machine products in the current market.

How to choose high quality differential lockstitch sewing machine? 

01. Factory Speed Setting

The speed of the sewing machine represents the productivity of clothing." In the industry standard," the speed of machine use is 4000r/min". Considering the running-in period of the new machine, the speed set at the factory is generally 90% and not less than 3,600 r/min.Due to more parts installed in the narrow space of the differential sewing machine, the precision of the parts is required higher. If the precision of the parts can not meet the requirements, it is easy to occur "lock-up machine" or "matching movement".Some manufacturers have factory-set speed limits of 3,200 r/min, which are designed to ensure that the machine works properly but at a clear cost to efficiency.

Reminder

Is your machine factory speed set properly?