The core concept of lean production method is

The core of lean production is "zero waste".

(1) "Zero" waste of man-hours in switching production (Products·Multi-variety mixed-flow production)

Reduce the waste of time in switching types of processing processes and switching production lines in the assembly line to "zero" or close to it is "zero".

(2) "Zero" inventory (Inventory·Inventory reduction)

Connect processing and assembly to streamline, eliminate intermediate inventory, and change market-predicted production to order-based synchronous production , reducing product inventory to zero.

(3) "Zero" waste (Cost·Comprehensive cost control)

Eliminate the waste of redundant manufacturing, transportation, and waiting to achieve zero waste.

(4) "Zero" defects (Quality·High Quality)

Defects are not detected at the inspection point, but should be eliminated at the source to pursue zero defects.

(5) "Zero" faults (Maintenance·Improve operation rate)

Eliminate the downtime of mechanical equipment and achieve zero faults.

(6) "Zero" stagnation (Delivery·quick response, short delivery time)

Maximize the compression of lead time (Lead time). To this end, it is necessary to eliminate intermediate stagnation and achieve "zero" stagnation.

(7) "Zero" disaster (Safety·Safety first)