SMT Machine

What is an SMT machine?

SMT machines refer to equipment used for surface mount technology (SMT). ‌ These devices are mainly used to mount pinless or short-lead surface mount components (SMC/SMD, called chip components in Chinese) on the surface of printed circuit boards (PCB) or other substrates, and perform soldering and assembly by reflow soldering or dip soldering. ‌

How many types of SMT machines are there?

SMT machines mainly include the following categories:

SMT Board loading machine: 

The main function of the board loading machine is to automatically send the PCB board to the SMT placement machine, which is the starting point of the SMT production line. ‌ It automatically sends the PCB to the SMT placement machine by receiving the board request signal from the lower computer, effectively saving labor costs and improving production line efficiency and production quality. ‌

The working principle of the board loading machine is to transfer the PCB boards stored in the turnover box to the production line one by one through automatic lifting, automatic counting, automatic feeding and unloading frames and fault alarm functions. It uses the transmission track to send the PCB board to the solder paste printer for the next step of processing. ‌

SMT Docking Station:

It is an automated equipment used in SMT production lines, mainly used to transfer PCB boards and realize automated connection of production lines. ‌ It transports PCB boards to different production equipment through conveyor belts, and is commonly seen in the transmission process before reflow soldering and placement machines. The speed of the SMT dock can be adjusted according to production needs, usually between 0.5-9 m/min‌.

SMT Solder paste printer‌: 

SMT solder paste printer is an automated printing equipment, mainly used to print solder paste evenly on the pads of circuit boards. ‌Solder paste is a viscous mixture of metal alloys used to provide spot welding connections for electronic components.

S‌MT Solder paste thickness tester:

SMT SPI (Solder Paste Inspection) is an automated optical inspection technology for detecting solder paste quality and accuracy. ‌The SPI system uses high-resolution cameras, light sources, and image processing software to capture and analyze images of solder paste spots to evaluate the quality and position of solder paste. Its main functions include detecting solder paste thickness, shape, position offset, and defects. ‌

SMT mounter machine‌: 

A device used to accurately mount electronic components onto printed circuit boards, also known as a "mounter" or "surface mount system". ‌ It accurately places surface mount components on the pads of the PCB by moving the mounting head. Its main function is to improve the mounting speed and accuracy of electronic components, thereby improving the efficiency and quality of the entire electronic manufacturing process‌‌ ‌.

SMT Reflow oven machine‌: 

A process that melts solder paste and connects electronic components to PCBs by controlling the temperature curve. ‌ This process is usually divided into four main stages: preheating, heat activation, reflow, and cooling‌.

The basic principle of SMT reflow soldering is to achieve mechanical and electrical connection between the solder ends or pins of surface mounted components and the pads of the printed circuit board by remelting the paste solder pre-distributed to the pads of the printed circuit board. Specifically, reflow soldering is to achieve the purpose of soldering SMD (surface mount device) by causing the gel-like flux to physically react under a certain high-temperature airflow through the action of hot air flow on the solder joints‌ ‌.

SMT AOI Inspection equipment‌:

(such as AOI optical inspection equipment): ‌SMT AOI (Automated Optical Inspection) is an inspection technology based on optical principles, which is used to detect various defects on PCB (printed circuit board). ‌ AOI technology uses high-resolution cameras or optical sensors to capture images of PCBs, and then uses complex image processing algorithms to identify and mark defects, thereby improving production efficiency and product quality. ‌

The working principle of AOI technology mainly includes three steps: image acquisition, image processing, and defect recognition. First, the AOI equipment uses high-resolution cameras or optical sensors to capture images of PCBs to obtain clear PCB images. Then, these images are transmitted to the image processing system for analysis and processing, including enhancement, filtering, binarization and other operations to highlight the defect characteristics. Finally, based on these processed images, the AOI system uses advanced algorithms and pattern recognition technology to identify and classify defects. ‌

SMT Board unloader: 

used to receive and store circuit boards after reflow soldering to ensure the continuity and automation of the production line. ‌

SMT Board cutting machine : 

SMT board splitter is a device specially used for cutting circuit boards. It is mainly used to cut large-area circuit boards into small pieces to achieve the division of circuit boards. It can accurately cut circuit boards according to the pre-set cutting path and parameters to ensure the accuracy and consistency of board splitting.

SMT Rework and cleaning: 

Use rework equipment and cleaning equipment to rework and repair PCBs that fail during inspection and remove welding residues.

The above equipment together constitutes a complete SMT production line, including board loading, printing, inspection, mounting, welding, cleaning, maintenance, board splitting and other links to ensure efficient production and quality control of electronic products.

Why choose us to buy SMT machines?

• Large inventory: The company has hundreds of SMT machines in stock all year round, and both the equipment status and the timeliness of delivery are best guaranteed.

• After-sales guarantee: There is an expert technical team that can provide one-stop technical services such as relocation, repair, maintenance, leveling, CPK precision testing, board repair, motor repair, camera repair, feeder repair, and patch head repair of SMT machines.

• Complete categories: Not only are there new and second-hand machine stocks of world-renowned brands, but also domestic machines of various brands, such as ASM, DEK, FUJI, PANASONIC, YAMAHA, SAMSUNG, JUKI, SONY, HITACHI, UNIVERSAL, KNS, etc., which have helped customers reduce operating costs and increase profit margins to a large extent.

• Intimate service: Our technical team operates 24 hours a day and night shifts. For all technical problems encountered by the SMT factory, engineers are always available to answer remotely. For complex technical problems, we can also send senior engineers to provide one-stop product and technical services on site.