If you are looking for a cost-effective SMT machine, you might consider buying a used SMT machine. However, second-hand SMT assembly machine are not an easy thing to buy. If you don’t know how to choose, you are likely to buy a piece of junk with low performance, poor quality, or even unusable. So, how can you choose a suitable second-hand placement machine? This article will introduce you to some considerations when purchasing second-hand placement machines, and teach you how to identify and avoid some common pitfalls.
What is a SMT assembly machine?
The placement machine is the core equipment in the SMT production line. Its function is to accurately mount electronic components on the printed circuit board (PCB) according to the predetermined position, forming the main part of the electronic product. The performance and quality of the placement machine directly affect the quality and production efficiency of the product.
However, the price of the placement machine is not cheap. For some small and medium-sized enterprises or individuals, purchasing a new placement machine may be a considerable investment. Therefore, many people will consider buying a second-hand placement machine to save costs and resources.
Second-hand SMT assembly machine are not something you can buy casually. If you don’t pay attention to some details and skills, it is easy to buy inferior or unsuitable equipment, causing economic losses or production difficulties. So, how to choose a second-hand placement machine? This article will introduce you to some considerations when purchasing second-hand placement machines and teach you how to avoid some common pitfalls.
Understand the origin and reason of second-hand SMT assembly machine
Before purchasing a second-hand SMT assembly machine you need to understand the origin and reason of this equipment, that is, why this equipment is sold. Generally speaking, the sources and reasons of second-hand placement machines are as follows:
Equipment aging: This is one of the most common reasons. Due to long-term use or improper maintenance, equipment performance declines or malfunctions occur, making it unable to meet production requirements.
Upgrading: This is also one of the common reasons. Due to market competition or changes in customer needs, old equipment needs to be replaced with more advanced or more suitable equipment and the old equipment is sold.
Change of industry for sale: This is one of the more special reasons. Due to operating difficulties or changing industry direction, all equipment needs to be sold.
Other reasons: In addition to the above three reasons, there are some other reasons, such as lease expiration, inventory liquidation, bankruptcy liquidation, etc.
Understanding the origin and reason of a second-hand SMT machine can help you judge the usage and value of the equipment, and can serve as a basis for negotiations with the seller. Generally speaking, if the equipment is sold due to age or failure, its performance and lifespan may be lower, and it may require more time and money to repair and maintain. If the device is sold as an upgrade, its performance and lifespan may be higher, and it may only require some simple debugging and adaptation. If the equipment was sold because it was being resold, its performance and longevity may be moderate, and it may need some moderate inspection and modification.
Of course, this does not mean that all aging or faulty equipment is not worth buying, nor does it mean that all equipment that has been upgraded or sold in another industry is worth buying. The specifics should be carefully considered based on your own needs and budget.
Determine the make and model you want to buy
When shopping for a second-hand SMT assembly machine, you also need to determine the brand and model you want to buy. Different brands and models have different performance, prices and value retention rates. You need to choose based on your own production scale, product type, quality requirements and other factors.
Generally speaking, imported brand placement machines are more stable, more accurate, and more durable than domestic brands, but they are also more expensive, more difficult to repair, and more difficult to adapt. Domestic brand placement machines are cheaper, easier to repair, and easier to adapt than imported brand placement machines, but they are also more prone to failure, less accurate, and less durable. Of course, this does not mean that all imported brands are better than domestic brands, nor does it mean that all domestic brands are worse than imported brands. It depends on your actual situation.
In addition to the brand, you should also pay attention to the choice of model. Different models have different functions and parameters, such as placement speed, placement accuracy, placement range, placement component type, etc. You need to choose according to your own product characteristics and production needs. For example, if your product requires high-speed and high-precision placement, then you can choose a high-speed and high-precision model of placement machine; if your product requires a wide variety of placement, then you can choose a multi-function, multi-parameter model of placement machine. machine; if your product requires placement of a special shape or size, then you can choose a dedicated customized model of placement machine.
After determining the brands and models you want to buy, you can also conduct some market research and comparisons through the Internet or other channels to understand the market prices, reviews, reputation and other information of these brands and models, so that you can make reasonable budgets and judgments.
Check the appearance and internal structure of the second-hand placement machine
When purchasing a second-hand SMT machine, you also need to personally inspect the appearance and internal structure of the second-hand SMT machine to see if there are any obvious damage, wear, rust, etc. Pay special attention to the three major components of the placement machine: motor, camera lens and feeder.
Motor: The motor is the power source for the operation of the placement machine. It determines the speed and stability of the placement machine. You need to check whether the motor is loose, broken, burned, etc., and whether there is any abnormal sound or vibration.
Camera lens: The camera lens is a key component for the centering and positioning of the placement machine. It determines the speed and stability of the placement machine. You need to check whether the motor is loose, broken, burned, etc., and whether there is any abnormal sound or vibration.
Feeder: The feeder is an important part of the placement machine for feeding and taking materials. It determines the efficiency and continuity of the placement machine. You need to check whether the feeder is stuck, broken, missing, etc., and whether it operates and feeds smoothly.
In addition to these three major components, you also need to check whether other components and circuits are damaged or aged, and whether there are complete accessories and accessories.
Startup: You need to check whether the second-hand placement machine can start, stop, reset, center, mount, etc. normally, and whether there are abnormal sounds, vibrations, malfunctions, etc.
Screen: You need to check whether the screen of the second-hand placement machine has scratches, stains, blurring and other problems, and whether there is a clear picture and operation.
Battery: You need to check whether the battery of the second-hand placement machine has problems such as aging, swelling, leakage, etc., and whether it can be charged and discharged normally.
Interface: You need to check the various interfaces of the second-hand placement machine, such as USB, network card, M.2, SATA, etc., to see if there are looseness, breakage, rust, etc., and whether they can connect and transmit data normally.
Software: You need to check whether the software of the second-hand placement machine has problems such as viruses, malicious programs, damaged files, etc., and whether it can run and be updated normally.
Hardware: You need to check the hardware of the second-hand placement machine, such as CPU, graphics card, memory, hard disk, etc., to see if there are any problems such as damage, overheating, performance degradation, etc., and whether it can work and monitor normally.
