subject: Important Factors To Consider When Purchasing A Used Plastic Injection Moulding Machine [print this page] It is overwhelming to find the most performing used plastic injection moulding machine in the market today. This machine is expensive and you cannot risk buying the first one you come across. You have to put your needs and finances first. Buy exactly what you need. Do not buy equipment whose capacity is more or less then you need. Both ways, you will be wasting resources.
Before shopping for the machinery, you will be required to determine what your needs are and how you expect to address them using the new equipment. It will be very disappointing to incur heavy investment that will not provide the required service. Careful research that might involve professionals is necessary to ensure the right asset is acquired.
In order to determine the right equipment, there are various factors to consider. The most preferred factor that is mostly used by manufacturers is shot weight. Grams or ounces are used to measure slot weight. In order to state the shot weight of any given machinery, manufacturers can either use the measured shot weight or injection volume.
Another factor that is considered when choosing the machinery is the size. The size of the asset bought should match the size of the items moulded. If large equipment is used to produce small articles, it might get spoiled. Using the machine in this way makes for wasteful usage of energy per kilo of the materials being processed.
In order to avoid quick degradation of the equipment, the temperature in the barrel should be lowered. Care should be taken to ensure it will provide service over an extended period of time. Since it is expensive, it should be used efficiently in such a way that the cost is recovered.
You should also consider the clamping force of all apparatus. Sufficient force should be used to keep the mould closed even when high pressure is being exerted on the mould. This pressure is determined by the injections. In case the pressure is not sufficient, the flash arises at the joints of the mould. You should therefore be very careful to ensure that the force of the pressure is within the required limits.
There are various types of these machines in the market today. This is a factor that needs to be considered when making a choice of the equipment. Classification by type is done according to the driving system used in the apparatus. Before 1983 when the electric machines were introduced to the market, hydraulic presses were the only ones in use. While the electric presses had many advantages over the older ones, they are more expensive. Some of the benefits that you will enjoy with their use are speed, improved accuracy and production of less noise.
A third type of used plastic injection moulding machine has emerged that combines the strong features of each of the two types mentioned earlier. These machines, however, operate just as the standard hydraulic machines consuming the same amount of power. Science has incorporated the use of robots in their use. This makes work a lot easier than before.
