This blog post is for bosses who want to purchase mounters, so as to make a correct judgment on the company's procurement and the choice of engineers. I don't think other small and medium-sized companies need to choose a brand-new mounter, but they can also choose a brand-new machine if they have sufficient funds. When choosing a second-hand mounter, we should first make clear the PCB board size, the maximum and minimum original board, the size and spacing of IC, and then make clear the daily output and monthly output, so as to determine the composition of SMT production line, whether to adopt a single medium-speed multifunctional machine or a high-speed machine+multifunctional machine of 1+ 1. How many production lines are needed to meet the demand? The choice is also very simple. If your product model is single, and the quantity is large, the most typical one is battery protection board, then you can choose high-speed machine. Which one to choose depends on whether the smallest one on your product is 0402 or 0603. On this basis, choose the model according to the range that the machine can stick. The common models are Panasonic, Fuji and Sanyo. If your products are few in quantity and many in models, and the monthly output of/kloc-0 exceeds 1 00000, such as DVD decoder board and car DVD, then you can choose the production line of 1+ 1, such as Panasonic CM88S-M high-speed machine+Samsung CP 45V-neo multifunction machine, and so on. After determining the above requirements, select the supplier to see the physical machine. For second-hand machines, buyers are most worried about whether the machine can paste this product, the quality of the paste is good, then the maintenance cost of the machine, and finally the price. 1. Look at the year of the same model machine, such as Samsung's CP40, which is an old machine. There are also different years on the market, and most of them are produced in 1999 and 2000. However, our company once sold Samsung CP40LV+ in 2003, and the mounting speed was definitely nearly 800-6544 faster than that of machines around 2000. 2. Look at the state of the machine: whether it is in production, whether the production is smooth, whether there is frequent alarm, whether the machine has abnormal sound, and the degree of wear and tear of machine parts. 3. Configuration, price and after-sales. Speaking of this for the time being, I wish you all a good machine with good quality and low price.