Question and answer on assembly line knowledge to answer your questions

1: the assembly line must be from left to right or from right to left? 

Generally speaking, because most people are right-handed, the assembly line flows from left to right. 

However, due to the area restrictions of some factories, at least one of the two or more assembly lines may flow in the opposite direction. 

2: is U-shaped assembly line the most appropriate? 

Not necessarily, the production line must be arranged according to the characteristics and craftsmanship of the product. 

3: the faster the assembly line, the higher his production capacity? 

The level of production capacity should depend on the working time of the bottleneck process and the fastest working time of each station. If you force to increase the speed of the production line, it will cause a lot of problems. 

4: is the assembly line designed to transport products? 

Not exactly. 

The purpose is to realize the "continuous value flow" of the product. 

5: why is it that the output is relatively low when you just start work or take over the shift for a period of time? 

It's a stage of preparation, and it's a time when there are a lot of problems. 

So the management of the handover is very critical. 

6: does the speed setting of streamline have to be constant? 

What about every day? 

It should be constant in the same product category, and the speed will change when different products are produced on the same line. 

At the same time, because of the problems of new employees, the line speed will be lower. 

7: can only one product be put in each box? 

Not necessarily, it should be based on the pursuit of stable production flow. 

8: is the processing speed of pre-assembly as fast as possible? 

Is it better to have as much buffer stock as possible? 

No, it should be produced on demand. 

However, the processing speed of pre-assembly can be slightly faster than that of assembly. 

9: the assembly line is easy to find the backlog, Kanban can show the progress, the line length urges the staff to do it quickly, right? 

The first two are right, but the third is not necessarily, it is not appropriate to urge employees when the production tempo is normal, which will cause some unnecessary problems (such as urging employees to change their homework, ignoring the inspection). 

10: the line manager said someone asked for leave and couldn't arrange the line, right? 

If you can't borrow someone, will you let the staff do their homework separately? 

First of all, strictly speaking, without the cooperation and cooperation of one person in the assembly line, we will not be able to complete all the follow-up work. 

Because there are few people in a link, there will be a decline in output, but not much. 

By the way, where is the emergency response when this happens? 

If the manager doesn't consider these common problems, can he still open a factory? 

11: who is more reasonable for employees to produce standing or sitting? 

Depending on product / condition / facility. 

12: should the container on the streamline be special-purpose or general-purpose, and what is its scale? 

Most of them should be designed for general purpose and cannot be treated exclusively for general purpose. 

13: how reasonable is the height and width of the streamline and the height and width of the machine? 

According to the principle of ergonomics, the height of the sitting worktable is 65cm 75cm, the seat is 38cm 45cm, the standing table is 85cm 95cm, the seat is 58cm 62, and there are 20 feet with 30 boards.