How SMT workshop planning? It turned out to be so useful.
How SMT workshop planning!
And only after the plant began production found that some areas have not planned beforehand, need to be adjusted, resulting in a waste of human and financial resources and valuable production time.
Therefore, it is important to check in advance SMT factory layout, especially for new SMT factory business, because there is no experience in SMT plant layout, the need to pay attention to the elements is not very clear, if we find a problem in the layout after production point, will cause some unnecessary losses.
So, when doing layout SMT plant, what to pay attention to what matters in advance to do to prepare? Here actual cases where we work to and we explore this problem.
planning SMT line configure
the client recent planning new on two identical SMT production line, specific device configuration (see FIG. 1) and the size of the apparatus is as follows: According to Figure 1 can be seen, the maximum width of the production line equipment is 1.71 m, the length of all devices sum is 13.6 meters, will add future planning a production line (line bulk on equipment configuration).
Workshop length 36 m, width of 12 m, an area of 432 m2, on the ground floor of the factory. Currently common ground for the shop floor, and no established anti-static system, can not meet the requirements of SMT antistatic workshop, but two conductive ground terminals, can establish subsequent workshops antistatic SMT system. Further, there is no air conditioning workshop and humidifiers, can not meet the requirements of SMT workshop temperature and humidity control. There workshop ventilation system, back to meet the requirements of the reflow furnace equipment. Workshop sufficient power to meet the electricity needs of all equipment in the workshop. There are two entrances whole plant, as are required to meet the equipment, raw materials and semi-finished channel. Special materials warehouse in another workshop, the need for planning. Good lighting conditions in the workshop, to meet the brightness of the SMT shop lighting requirements all stations. Whole plant layout situation shown in Figure 2.
1, the current new move into production lines and related aids, regional positioning;
2, the whole plant to meet future erection and production requirements three production lines, without planning zone realignment;
3, each production line starting position as consistent as possible, so that the whole plant orderly arranged in three lines.
analysisthe customer’s request, we first analyzed how the production line positioning; and before locating the production line, we consider the following points:
1, SMT equipment should avoid column and they maintain a certain distance, the distance is equipment installed at least after a good feed material by a vehicle;
2, SMT crossing equipment required for frame division pitch, and the crossing equipment to extend outwardly after the device installed above the material 50 cm;
3, optimal spacing of the two lines spaced more than 1.2 meters between the outer frame;
4, check the wire tail is generally a repair plan area, quality control personnel can perform sampling line 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 where the sampling area and the thread area kanban), the width should be 2.7 meters (SMT feeding both surfaces), specifically as shown in Figure 3.
Therefore, the production line is positioned in substantially considering plant shown in FIG. 4.
Some details of the requirements of SMT plant layout
after determining the approximate location of the production line, when the need to consider some details of SMT production line requirements, and then to determine the exact location and the location of other auxiliary equipment SMT line.
First, we analyzed the SMT line position and aids required for each area requirements: 1, fire extinguisher drop zone;
fire extinguishers to be placed around the side of the post and SMT plant, placed according to the requirements of fire regulations.
2, the car rack placement region; car rack replacement for SMT production line models and switching material, in order to facilitate production and to improve the efficiency of replacement materials, preferably the vehicle is placed near the rack placement machine.
3, stock units rest area;
stock table mainly used in the production process and dryer materials stock preparation before switching, therefore, to be placed near the preparation station placement machine, and the best car rack together, Preparation facilitates directly on the car frame after a good feed material.
4, the shelf rest area printing station;
printing station for positioning the shelf aids in the production of printing presses, such as wipes, paste, alcohol, etc., to be placed in the vicinity of the printing press to facilitate removal use, improve Productivity.
region comprising placing solder paste storage refrigerator, solder paste mixer, paste warmed cabinets, can be placed next to the plant as required or uprights placed around a fixed area of the plant, However, to facilitate the operator to take place.
6, visual inspection after the furnace area, maintenance area;
in order to facilitate visual inspection after reflow and rework semifinished product, a shelf generally placed in the furnace, designed for the visual inspection of the furnace and rework.
7, screen placement area;
drop zone comprises a mesh screen plate was placed cabinet, stencil cleaningmachine, inspection tools, screen, stencil for storing, cleaning and inspection screen tension, etc., while in the region as much as possible to facilitate the production screen to take place.
8, garbage drop zone;
Production waste mainly from two parts, wipes and the like used in one printing operation, the second is to replace the waste tray and waste material produced with the like. Garbage two parts is generated to be placed separately, specialized recycling, in particular waste presses used. Thus, waste area may be placed next to the press machine or patch, or set beside the column region refuse placed separately placed.
9, kanban placement region;
kanban including the SMT billboards and other signage quality management, may be centrally located on the entrance into the shop, and also set up the production line Kanban state in which each head of the line, in order to view the producers and managers, promptly understand the current state of production status and quality SMT workshop and so on.
10, product placement area;
include products produced finished products in two parts, to separate the two partial regions divided out, strictly distinguished, in order to avoid confusion.
11, SMT placement of spare areas;
Nozzle including the SMT spare parts, a motor, a belt, cylinder or the like, to be placed in a special area, to facilitate the production of access.
12, location area temperature and humidity;
temperature and humidity conditions in order to better understand the SMT plant, depending on the size of the workshop area, several appropriately set the temperature and humidity measurement area, generally placed on the production line next to the column or wall.
13, SMT workshop office area;
let engineers and technicians and management personnel in office SMT shop floor, which can solve the problem on technology and management encountered in the production, to ensure the smooth operation of the SMT production lines.
14, anti-static protection area;
entry into SMT workshop area must have good anti-static measures. You may delineate the area in front of the plant, including the replacement of static clothing, shoes, hats and so on each employee’s locker. Also, the establishment of regional designed to test the static ring in SMT workshop at the entrance, so that each employee to do static loop testing and record test results before going to work. Based on the above analysis, the results of this 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 ordinary places, customers can choose according to the actual situation. In addition, anti-static system must be set up in the workshop, to meet the requirements of the entire anti-static SMT workshop.
2, air-conditioning and a humidifier; SMT workshop to meet the requirements of temperature and humidity control.
3, the material management requirements;
in the warehouse, with particular attention to the way the material is stored, reel packaging methods, the use of hook-type place, wetting elements employed Cabinets for placement shelves to be treated with anti-static manner.
4, patch equipment gas and electrical circuitry;
preferably introduced directly from the production line at the down side of the roof, is arranged below the gas passage in the device and circuit wrapped with wire groove.
5, the ventilation system requirements;
needs to be installed to meet the requirements of the three power lines of the blower, and the third exhaust port reserved line.
1, according to the size of production line and the size of the entire plant SMT, completed the reasonable position of the production line; and
2, for aids, regions, etc. SMT production lines need to make the corresponding position location; 3, according to the SMT the characteristics of the plant, some of the necessary factors to consider in planning, in particular, anti-static; 4, in accordance with the requirements of the current situation and future development of the factory has been take into consideration, unified planning.
For SMT plant layout, but also requires a combination of size and product requirements and other plants to consider a number of factors, but to stimulate here.
The increasing requirement to store components for long periods of time creates challenges when accurately accounting for appropriate storage parameters. Whether you're protecting your ability to reproduce an identical product in the next year, safeguarding your inventory, or guaranteeing your price point, here are some considerations to make when storing your components long term.
Shelf life for components is determined by both the Bag Seal Date and the Humidity Indicator Card (HIC). 12 Months - 2 Years (max).
Using a Dry Packs and/or Dry Atmosphere Cabinet to control moisture is essential for long-term storage of components. Low humidity can be maintained with dry air or Nitrogen and the ability to regain optimal moisture levels within 1 hour.
< 5% Relative Humidity (RH)
Nitrogen @ 25 ° Celsius +/-5
Temperature is a critical factor when considering all aspects of preservation of components, especially oxidation & intermetallic formation.
12 Degress Celsius
The optimum parameters are subject to the details of each component as labeled on related packaging. Use the detailed information according to each component. As a general rule, however, in order to control for oxidation, corrosion, and intermetallic formation it is recommended to store components for no more than 2 years, at 12 ° Celsius, <5%RH.
Watch Full Video for the Digital Catalog of AI/SMT Machines
See a Machine You Need?
Thank you for watching our AI/SMT Video Catalog where we featured Pick & Place Machines, Axial Insertion Machines, Radial Insertion Machines, Printers, Wave Soldering Machines, Odd-Form Machines, SMT Stencil Cleaners, and much more. Did you see a SMT, THT, or other machine, spare part, or service you need? Request a quote and we will guide you through the rest.
Some of Our Customer's Favorite Peripheral Equipment
Automatic Glue Dispensing & SMT Splicing Tool
We're sharing some of our most popular peripheral equipment & spare parts. We supply many premier factories with our high-quality, low-cost peripheral equipment & spare parts. Here are just two samples of some customer favorites:
1. Automatic Glue Dispensing Machine
Equipment for dispensing SMT adhesive and glues. With its accurate robot, controller, and pumping system, our automatic glue dispensing machine can effectively dispense glue, saving large volumes of glue and increasing productivity & ROI.
Fully Automatic and Easy to Operate!
Drawing point, line, surface, arc, circle, irregular curve continuous complement, and triaxial linkage.
Size Setting for gluing area, speed of gluing, dispensing time, stopping glue time. Stable glue exudation without glue leaking and dripping.
Draws dispensing path and imports from computer, or editable on the touch panel.
Easy operation, high precision.
Big working platform for putting several pieces of product together at a time.
High dispensing efficiency.
Adjustable working platform that adjusts according to the size of products.
Suitable for various kinds of fluid dispensing: UV glue, AB glue, EPOXY(black glue), white glue, EMI conductive glue, silicon, epoxy resin, instant glue, silver glue, red glue, paste, thermal grease, welding control paste, transparent paint, screw fixative…
Mobile phones computer case CD-ROM driver printer ink folder PCB board LCD LED DVD digital camera switches connectors relays radiators semiconductors clocks toys medical apparatus
UV glue AB glue EPOXY(black glue) COB black glue white glue EMI conductive glue silicon epoxy resin instant glue silver glue red glue paste thermal grease, welding control paste transparent paint screw fixative & MORE!
Have you invested in one of our AI/SMT machines? Then you know that quality is our TOP priority. Our spare parts are of that same superior quality. We know first hand how important choosing the right spare parts are to the success of your factory, as it means higher productivity, efficiency, ultimately bringing you more business. We are dedicated to providing the lowest prices and the highest quality.
Check out our shop, and if you have any questions we are here to fill your needs with the highest quality advice, machines, and parts.
We provide Different Nozzle Brands:
Juki Nozzle, Fuji, Panasonic, YAMAHA, Samsung, odd form nozzle and MORE! Order at SMTHelp.com or contact us for more information!
ON SALE: Rotary Table assy for Universal Axial Insertion machine
We are your one-stop shop for your accessories. Don’t miss our sales. We are currently offering Rotary Table assy for Universal Axial Insertion Machines for a discount. Visit SMThelp.com for more spare parts or click below to purchase this item!
For a brief time, we will be giving away a FREE Gerber File.
For the first time, Southern Machinery is giving away a FREE Gerber File! If you need help with your design process, we are gladly here to help. Let us make your manufacturing set-up easy and efficient.
We at Southern Machinery know and understand what is needed for a successful PCB Assembly. If you need pharmacy guidance with design, CAD, equipment configuration, training, just ask! Southern Machinery is not just a place to buy machines, but also a place to get your technical questions answered. So ask us! We want to help you find your PCBA solutions.
There are three main pollution sources to consider when dealing with Stencil Cleaning Equipment for your PCBA. They include gaseous emissions, wastewater, and solid emissions. Depending on the regulations of the location you conduct manufacturing, the quantity of the emissions, and any fines or penalties associated with these emissions, we recommend learning about environmental pitfalls and avoiding them all together.
We want to bring cleaner solutions to the PCBA process. In the spirit of education we want to share the environmental pitfalls you can avoid by choosing a Pneumatic Stencil Cleaner:
Air Pollution: Ozone Depleting Substances Climate Change Contributing Substances Odors
Heavy metal cations (notably lead, tin and copper)
All leachable toxic materials up to 100 years in authorized discharge conditions
Waste Water Pollution:
Heavy metal cations (notably lead, tin and copper)
Anions (notably phosphates, nitrites and sulfates)
Complexing/chelating agents (notably EDTA salts and
PH (acid or base condition)
Other (temperature, solid matter, suspended matter, Toxicity to aqueous life before and after biodegradation surface tension modifiers, etc.)
Pneumatic Stencil Cleaner: Filter Changing
CLEAN! Zero pollution SMT stencil cleaning machine EASY! 2 grade filter for SMT stencil cleaning machine cleaning fluid circulation use FAST! 3 minutes cleaning process for quick improvement of printing quality