In this article, we objectively list 5 reasons for choosing PCB assembly machines. Of course, there are other reasons that will affect the choice of machines. For example, your country. I believe that in Japan, most companies will still choose Japan. Branded placement machines.
Reason 1: Order Quantity for PCB Assembly
The number of orders to be produced or the company's order number is one of the important reasons that affect the selection of placement machines. In some EMS factories in China, some orders can be produced for a week or a month without changing the line, so they must have purchased fast ones. SMT machine.
High-speed machines, such as the NXT of Japan's FUJI, can arrange many machines together. The more they are arranged, the more electronic components can be placed in one hour. In the past, most mobile phone factories also purchased NXT machines, such as the OPPO mobile phones I know.
Reason 2: The type of material on the PCB board
Many electronic products have few material types, but many industrial controller motherboards have many types of materials, not only capacitors and resistors, but also many BGAs, MCUs, etc. At this time, it is necessary to consider fast placement machines; on the contrary, fast machine, if you choose it to place BGAs, you will waste the advantages of the machine.
Alice knows that the SMT machines in the market can be divided into high-speed machines and multi-function machines. High-speed machines are aimed at small materials and have a fast placement speed; multi-function machines are mainly used to mount large electronic components such as electrolytic capacitors and MCUs.
In the Chinese market, most medium-sized factories are equipped with high-speed machines + multi-function machines. Small factories can only purchase multi-function machines. For example, one JUKI2060 in our factory can place almost all orders.
Reason 3: The accuracy requirements of the components on the PCB board
To give a very simple example, the package of LED components is generally 3528, 3014. Such components do not have too high requirements for precision, so basically you can purchase Chinese LED placement machines. I have also seen most of these LED machines. There are 20-40 SMT suction nozzles (the Japanese JUK in our factory has 4-8 suction nozzles), and the placement speed is also very fast.
However, to mount electronic components on mobile phone motherboards such as 0201.01005, higher-precision placement machines must be used. China is very backward in this regard, so Japanese and German placement machines are generally used.
In April 2023, Alice also encountered a customer who had a requirement for the offset of the mounted resistors and capacitors. He specified that only Siemens machines in Germany can be mounted to achieve that accuracy.
Reason 4: The placement space of PCB assembly machines
If your factory's SMT workshop area is small, it is recommended to purchase module placement machines. They are often small in size (some less than 0.5 meters), but they are often much more expensive; many small factories in China are still using brick tower placement machines Machine (such as FUJI's CP6), its length is 10-20 meters.
Reason 5: The machines used in the factory before
Because if your factory purchased a certain brand of placement machines before, if you want to increase the number of machines, it is recommended to purchase the same brand, because at this time, the operating system and operation interface of the machine are the same. It is beneficial for your colleagues to use the machine quickly;
Another reason is that the machine of the same brand is normally used, and the feeder of the machine is universal, which can help you save purchase costs, and some save 100,000-400,000 RMB;
In terms of machine repair and maintenance, many accessories and consumables are common, which can also save costs. For example, our Japanese JUKI machines of JHD have common suction nozzles and most of the filter cotton.
