1： Waste of defects and repairs


The so-called waste of defective or repaired products refers to the waste of time, manpower, and material resources that need to be disposed of due to the occurrence of defective products in the factory, as well as the related losses caused thereby.


This type of waste specifically includes: material loss, defective products becoming waste; Loss of equipment, personnel, and working hours; Losses from additional repairs, QC, and additional inspections; Sometimes it is necessary to reduce prices to handle production, or the reputation of the factory may decrease due to delayed shipments.


2： Waste of processing


The waste of processing, also known as the waste of excessive processing, mainly includes two meanings: the first is redundant sewing and excessively precise processing, such as resource waste caused by excessive actual sewing stitches; The second is the need for extra homework time and auxiliary equipment, as well as increasing the waste of energy such as production electricity, and also increasing the number of management hours.


3： Waste of action


The phenomenon of action waste exists in the production lines of many production enterprises, and common action waste mainly includes the following 12 types: two hands idle, one hand idle, sudden stop of homework action, excessive homework action, left and right hand exchange, walking too much, turning angle too large, changing "state" during movement, unclear skills, back extension action, bending action, repetitive and unnecessary actions, etc, The waste of these actions results in unnecessary consumption of time and energy.


4： Waste of handling


Moving is an action that does not generate additional value, and any work that does not generate value is considered waste. The specific manifestation of waste in transportation is the waste of actions such as placement, stacking, movement, and alignment, which leads to the waste of space, time, and the occupation of human tools required for the movement of items.


At present, many production enterprise managers in China believe that transportation is necessary and not a waste. Therefore, many people turn a blind eye to waste in transportation, let alone eliminate it. Some production enterprises also use conveyor belts or machine handling to reduce manual handling. This approach is to spend a lot of money to reduce the physical consumption of workers, but in fact, it does not rule out the waste of handling itself.


5： Waste of inventory


According to past management concepts, people believed that although inventory was a bad thing, it was necessary. Actually, inventory is unnecessary, and even the source of all evil.


For example, some production enterprises may experience production line malfunctions, resulting in shutdowns or stoppages. However, due to the presence of inventory, the issue of shutdowns or stoppages caused by the malfunction is masked and the troubleshooting is delayed. If inventory is reduced, the above-mentioned problems can be completely exposed to the horizontal plane, which can gradually solve these inventory waste.


6： Create too much premature waste


Manufacturing too much or too early, which consumes production costs in advance, not only has no benefits, but also hides the waste caused by waiting and loses the opportunity for continuous improvement. Some production enterprises, due to their strong production capacity, increase their work in progress to avoid wasting production capacity, resulting in shorter product cycles, larger space, and increased waste in handling and stacking.


In addition, excessive or premature manufacturing can lead to a large inventory, an increase in interest burden, and inevitably increase the risk of depreciation.


7： Waste of waiting


The waste of waiting caused by interruptions in the supply of raw materials, imbalanced operations, and improper production planning is called idle waiting. If the preparation work for switching between different styles on the production line is not sufficient, it will inevitably lead to waste of waiting; The daily workload changes significantly, sometimes very busy, and sometimes resulting in idle personnel and equipment; Upstream processes have problems, resulting in downstream processes having nothing to do. In addition, the existence of unequal labor and rest in production lines is also an important reason for waiting waste.


8： Management waste


Management waste refers to the additional waste generated by managers taking corresponding measures to remedy problems after they occur. Management waste is a problem caused by inadequate management in advance. Scientific management should have considerable foresight, reasonable planning, and strengthen management, control, and feedback during the process of progress. This can greatly reduce the occurrence of management waste.