The document discusses planning an SMT workshop layout. It describes a case of planning for two production lines and considers factors like equipment dimensions, workshop size, and future expansion. The layout positions the lines along the workshop length, leaving space between for access. It then discusses placement of auxiliary equipment and areas for materials, trash, quality monitoring, and more. The overall goal is to arrange the workshop neatly and meet requirements for temperature control, anti-static measures, material storage, and ventilation across multiple production lines.

1. HOW to plan SMT workshop ?
Many factories found that some areas are not planned beforehand after
starting production , so it need to be realigned, resulting in a waste
of human and financial resources and valuable production time.Focus on
SMT industry,keep abreast of the latest developments SMT,view
www.smthelp.com So, it’s is very important to do well in advance SMT
factory layout, especially for new SMT factory, because they have no
experience of SMT factory layout, they are not very clear some necessary
elements , it will cause some unnecessary losses,if the layout of the
problems found after starting production .
Therefore, when doing layout SMT plant, what matters do we need to pay
attention and do prepare? Here's the actual case we met in work ,I will
share my view.
Case
Planning of SMT production line configuration
`One customer planning to install two of the same SMT production lines
recently, the specific equipment configuration (see Figure 1) and the
device dimensions are as follows: We can know from the Figure 1 that
the maximum width of the production line equipment is 1.71 m, the total
length of all devices is 13.6 meters,and will add a production line in
the near future(the equipment configuration is the same).
Workshop Situation
Workshop length is 36 meters, width of 12 meters, an area of 432 square
meters, located on the first floor of the factory. And the floor is
ordinary ground, and did not establish anti-static system, can not meet
the requirements of anti-static SMT workshop, but there are two
conductive ground terminals, it can establish a workshop SMT anti-static
system in near future. In addition, no air conditioning and humidifiers
in workshop, SMT workshop can not meet the requirements for temperature

2. and humidity control. But the workshop has ventilation systems to meet
the requirements of return oven and other equipment.There is sufficient
power to meet the electricity needs of all workshop equipment.And has
two entrances, both as to meet the equipment, raw materials,
semi-finished and channel requirements.The lighting in good condition
to meet all stations of illumination requirements within SMT workshop.
The whole plant layout specific case shown in Figure 2.
customer's request
1, The current move into new product lines and related auxiliary tool
positioning region.
2, The whole plant to meet future production requirements and set up three
production lines, without re-adjustment of the planning area;
3, The starting position of each line as consistent as possible, so that
the whole shop neat and orderly arranged three production lines.
Problem analysis
For the customer's request, we first analyze how to locate production
line; and before positioning the production line, we consider the
following points:
1, SMT equipment should avoid column and they maintain a certain distance
which is at least by a car after feeding equipment installed materials;
2, SMT equipment required zebra frame is divided, spacing zebra and
equipment so as to extend outwardly equipment installed after the
material more than 50 cm;
3, Two production lines for the optimal spacing between the frame more
than 1.2 meters apart;
4, The end of the line for general planning a repair inspection area,
quality control personnel available online sampling tail region.
Based on the above considerations, the length of each line should be at
least 13.6 meters (without regard to the maintenance area and the tail,
the case of sampling area and thread board area), the width should be
2.7 meters (Mounter to both sides of feeding),as shown in Figure 3.

3. Therefore, the production line at the plant is positioned generally
considered as shown in Figure 4.
Some details of the SMT plant layout requirements
After determining the approximate location of the production line, SMT
production line need to consider some of the details when requested, and
then to determine the exact location and position of other auxiliary
equipment SMT production lines.
First, we analyzed the accessibility needs of SMT production line and
position of the regional requirements:
1, Fire extinguisher placement area;
According to the requirements of fire safety requirements,extinguisher
to be placed around the next column and SMT workshop.
2, The car rack placement area;
Material car is used in the production of the SMT production line and
model when switching material replacement.In order to facilitate the
production and improve the efficiency of replacement materials, it is
best to place the rack in the vicinity of the car mounter.
3, Preparation stations drop zone;
Allocations station is mainly used for material preparation process of
preparation and production models before switching, therefore,
preparation station should be placed in the vicinity of the placement
machine,it would be better to stay near the rack car,so that easy to be
placed directly after the ready material rack car.
4, The printing stations placed a small table area;

4. Printing stations placed a small table in the press for the production
aids, such as clean paper, paste, alcohol, etc., to be placed in the
vicinity of the printing press in order to pick up, and raise productivity.
5. Paste the drop zone;
Paste drop zone comprises a storage refrigerator paste, solder paste
mixer, paste warmed cabinet, etc., can be placed next to the plant in
accordance with the requirements of the post or placed in a fixed area
around the plant, but easily accessible to the operator to take put.
6. Visual inspection after the furnace area and maintenance area;
After the semi-finished products in order to facilitate visual inspection
of reflow and rework, usually placing a small table oven, stove designed
for visual inspection and after repair.
7, Screen placement area;
Stencil drop zone comprises a mesh plate was placed cabinets, and other
stencil cleaning machine, stencil inspection tool for stencil storage,
cleaning and stencil tension inspection, etc., while in the region to
facilitate the production of a screen to take place as far as possible .
8, Trash placement area;
Production waste comes mainly from two parts, one printing operation
using the wipes and the like, the second is to replace the waste tray
and waste material produced with the like. The two parts of waste
generated to be placed separately, specialized recycling, especially the
press used garbage. Therefore, the garbage area may be placed next to
the printer or a placement machine, or set the garbage drop zone next
to the column, placed separately.
9, Billboards rest area;
SMT kanban including billboards billboards and quality management, etc.,
can be placed in focus into the shop's entrance, while the establishment
of the kanban production line production status of each thread in order
to see to the producers and managers to keep abreast of current SMT
production workshop status and quality status.
10, Product placement area;
Produced products, including finished products in two parts, both part
of the region to a separate division out strict distinction, in order
to avoid any confusion.
11, SMT spare parts placement area;
SMT spare parts including Nozzle, motors, belts, cylinders, etc., to be
placed in a special area, to facilitate the production of access.

5. 12, Temperature and humidity location area;
To better understand the SMT workshop temperature and humidity conditions,
depending on the size of the workshop area, appropriately set several
temperature and humidity measurement area, generally placed in the column
next to the production line or on the wall.
13, SMT workshop office area;
Let engineering and technical staff and management at SMT shop floor work,
this will solve the problem encountered in the production technology and
management on to ensure the smooth operation of SMT production lines.
14, Anti-static measures at the regional;
Enter SMT workshop personnel must have good anti-static measures areas.
You can designate a workshop at the door of the region, including the
replacement of static clothing, shoes, hats and so on each employee's
locker. Also, set up a special area to test the static ring in SMT workshop
entrance, so that each employee to work before doing static ring test
and record test results. Based on the above analysis, the results of which
SMT plant layout is shown in Figure 5.
In addition, SMT workshop also meet other requirements: 1, Anti-static
processing;
Shop floor must be anti-static treatment, a common anti-static conductive
flooring and paint, and other common ground, customers can choose
according to the actual situation. Additionally, in the workshop must
establish anti-static systems to meet the entire SMT plant anti-static
requirements.
2, Installation of air conditioning and humidifiers; to achieve SMT
workshop temperature and humidity control requirements.
3, Material management requirements;
In the warehouse, with particular attention to the way the material is

6. stored, reel packaging methods, the use of hook-type place, wettability
components used were placed Cabinets, shelves to adopt anti-static manner.
4, Chip equipment such as air and road circuit;
The best lead down directly from the production line at the side of the
roof, the device is arranged below the pneumatic circuit and wrapped with
a wire groove.
5 Requires a ventilation system;
We need to install three production lines to meet the requirements of
high-power blower, and set aside a third production line ventilation
port.
Achievement
1, Depending on the size and SMT production line equipment the size of
the entire plant, completed the reasonable position of the production
lines;
2, Regional and other aids for the SMT production lines need to use to
make the corresponding location targeting;
3, according to the characteristics SMT plant, some of the essential
factors to consider in planning, especially anti-static;
4, According to the factory current status and future development
requirements of the overall consideration, unified planning.
To sum up
For SMT plant layout, but also requires a combination of size and product
requirements and other factories consider many factors.