Joy Technology Co.,Limited

SMT Equipment | SMT production line equipment 

SMT equipment is the collective name of the specialized electronic machinery equipment of the SMT manufacturer in the PCB industry. At present, the SMT equipment is mainly used in the manufacturing industries such as electrician, electronic, instrumentation and so on. There are many types of SMT equipment, and the main SMT equipment are: trigger, solder paste printer, Mounter, reflow, plug-in machine, wave soldering, AOI, to send board machine, connecting Taiwan and so on. Each of these devices has its own specific function and role, the following analysis of the main features of these devices as well as the role:


1) SMT production line can be divided into two types:
According to the degree of automation can be divided into: automatic production lines and semi-automatic production lines. Automatic production line refers to the entire production line equipment is fully automatic equipment, through the automatic board machine, buffer connection line and unloader all the production equipment with a production line; semi-automatic production line refers to the main production equipment is not connected or not fully Connected, the press is a semi-automatic SMT line that requires manual printing or manual handling of printed boards.


2) According to the size of the production line can be divided into:
Large-scale SMT production line: such as Intel, Bosch, Gree and other electronic industry giants, are equipped with a large SMT production line.
Medium SMT production line: If the professional PCB manufacturers, small quantities can be flexible production, controllable production cycle
Small SMT production line: some small and medium electronic products manufacturers, equipped with a simple semi-automatic SMT production line, cost-effective.



SMT production line according to the main components of the role of technology can be divided into:
Assembled by the surface components, circuit boards, assembly design, assembly process;
The main production facilities include printing presses, dispensing machines, placement machines, reflow furnaces and wave soldering machines.
Auxiliary equipment testing equipment, repair equipment, cleaning equipment, drying equipment and materials storage equipment.

3) The whole SMT chip equipment line mainly by: on the trigger + printing press + SPI + high-speed placement machine + Mounter + reflow + AOI + under the board machine
4) The whole plug-in line equipment mainly by: plug-in machine + wave soldering


Have a basic understanding of the SMT production line, the following summary of the station involved in the typical production line:

(1) Printing process and equipment: The role of the printing press is to print the solder paste or patch glue onto the PCB pad to prepare for the soldering of the components. Equipment used for the printing press (stencil printing machine), located in the forefront of the SMT production line. Solder paste printing machine, also known as SMT printing machine, SMT screen printing machine, is the first production line SMT equipment, is responsible for the solder paste, glue printed on the PCB circuit board for the post-chip process ready. Paste printing presses are sub-manual, semi-automatic, automatic solder paste printing presses, according to the different needs of users choose the most suitable for their printing equipment.

(2) Dispensing: It is the glue dripping PCB fixed position, its main role is to fix the components to the PCB. The equipment used is a dispenser, located at the forefront of the SMT line or behind the test equipment.


(3) Patch process and equipment: Its role is to accurately mount the surface assembly components to a fixed position on the PCB. Equipment used for placement machine, located in the SMT production line in the back of the printing machine, SMT machine SMT production line is the highest technical production equipment, responsible for the components accurate, non-destructive mounting to the specified position on the PCB circuit board, Chip performance of the technology there are many, the most important are the placement speed, placement accuracy, PCB size, placement range and so on. In the whole SMT production line, users tend to focus on the placement machine, the performance is the main criteria to determine the production line. With the continuous development of SMT placement technology, currently used for a variety of purposes and the environment of the placement machine, such as multi-function placement machine, small placement machine, high-speed placement machine, LED placement machine, etc., Many non-custom mounting equipment.

(4) Curing: Its role is to melt the adhesive patch, so that the surface assembly of components and PCB firmly bonded together. The equipment used is a curing oven, located behind the placement machine in the SMT line.

(5) reflow soldering: its role is to melt the solder paste, so that the surface assembly of components and PCB firmly bonded together. The equipment used is reflow oven, located in the SMT production line in the back of the placement machine, reflow oven is the SMT production line after the procedure, is responsible for the PCB PCB and components have been mounted after the solder melted bond with the motherboard. Reflow oven also has many varieties, such as hot air reflow, hot wire reflow, hot gas reflow, laser reflow.


(6) Cleaning: Its function is to remove the welding residues, such as flux, which are harmful to the human body on the assembled PCB. Equipment used for washing machines, the location may not be fixed, you can either online or offline.


(7) test: its role is to assemble the PCB for welding quality and assembly quality testing. Equipment used are magnifying glass, microscope, In-Circuit Tester (ICT), Flying Probe Tester, Automated Optical Inspection (AOI), X-Ray Inspection System, Functional Tester and so on. Its location according to the testing needs, you can configure the production line where appropriate.


(8) Rework: Its role is to detect the appearance of PCB rework. Tools used for electric iron, rework station and so on. Configured anywhere in the production line.


In addition to these basic SMT equipment, there are many ancillary equipment, SMT industry called SMT peripherals: SMT peripherals, there are many, such as specifically testing PCB circuit board connectivity AOI, transmission equipment connected between the station, as well as automatic detection device components And so on, these SMT peripheral equipment and SMT machines, solder paste printing presses, reflow oven with the formation of fully automated SMT production lines, so that production more efficient and automated.

SMT equipment includes a lot of process units, there are many brands, according to the function and role of a lot of choices, if you need to know the specific parameters of SMT equipment or price, please contact us directly！