Bar feeders are a special kind of machine with a sole purpose to feed metal bars into CNC machines. This basically frees workshop personnel from this task and makes it possible to have unobstructed and unattended CNC operation on holidays, weekends and even night shifts.
Bar feeders can be connected to a CNC for automated control, or can be set to feed at a specific rate, depending on the application. They can hold many bars on their magazines and feed them to the CNC one by one. Modern bar feeders have the capability to detect if anything is wrong in the process and essentially stop automatically.
What to think about before purchasing
As with everything that can be found inside a workshop, bar feeders come in a lot of shapes, sizes, and different technical characteristics. Since this machine is something that is bought on the premise to work well in collaboration with another machine (CNC), buyers should be particularly cautious on what model they should choose. Here are some of the most important points for consideration:
Magazine Size Needs
The size of the magazine that holds the bars is a critical factor to consider when buying a bar feeder. Determine what type of bars you want to process (gauge class) and calculate how many of them can be held on the magazine. Then consider the feeding rate to figure out how many hours of unattended operation you can get from the feeder. Usually, a minimum of 8 hours (night shift) should be preferred.
Lengths of Part and Spindle
Is the part that you want to mill long or short in relation to the maximum bar length that the feeder can hold? How many finished workpieces is a bar going to last for? What is the length of the bar that will be held at the spindle? These are the kind of questions that a buyer needs to answer before figuring out the production efficiency of a bar feeder with precision. Sometimes, a buyer will have to spend quite some time calculating all possible configurations for a bar feeder, but if a workshop produces specific workpieces at known length, the time and effort to take those into account are worth it.
Operational Safety
Unattended operation is the goal of every modern workshop out there, but this can never come without the machine being able to detect problems in time. If not, you may end up with tons of defect products, costing you a lot of time and resources. Check whether a bar feeder uses sensors, load meters, infrared beams and even webcams that can send video feed on a remote computer/device.
Floor Space Needs
Bar feeders are installed right next to the CNC, so considering if a workshop has enough floor space for such a machine is imperative. Also, remember that it's not only about fitting a machine in a corner, but also providing for enough space for regular maintenance and access in the compartments. Finally, if a crane will be used for the feeding of the magazine, enough maneuvering space should be considered.
Bar feeders can be connected to a CNC for automated control, or can be set to feed at a specific rate, depending on the application. They can hold many bars on their magazines and feed them to the CNC one by one. Modern bar feeders have the capability to detect if anything is wrong in the process and essentially stop automatically.
What to think about before purchasing
As with everything that can be found inside a workshop, bar feeders come in a lot of shapes, sizes, and different technical characteristics. Since this machine is something that is bought on the premise to work well in collaboration with another machine (CNC), buyers should be particularly cautious on what model they should choose. Here are some of the most important points for consideration:
Magazine Size Needs
The size of the magazine that holds the bars is a critical factor to consider when buying a bar feeder. Determine what type of bars you want to process (gauge class) and calculate how many of them can be held on the magazine. Then consider the feeding rate to figure out how many hours of unattended operation you can get from the feeder. Usually, a minimum of 8 hours (night shift) should be preferred.
Lengths of Part and Spindle
Is the part that you want to mill long or short in relation to the maximum bar length that the feeder can hold? How many finished workpieces is a bar going to last for? What is the length of the bar that will be held at the spindle? These are the kind of questions that a buyer needs to answer before figuring out the production efficiency of a bar feeder with precision. Sometimes, a buyer will have to spend quite some time calculating all possible configurations for a bar feeder, but if a workshop produces specific workpieces at known length, the time and effort to take those into account are worth it.
Operational Safety
Unattended operation is the goal of every modern workshop out there, but this can never come without the machine being able to detect problems in time. If not, you may end up with tons of defect products, costing you a lot of time and resources. Check whether a bar feeder uses sensors, load meters, infrared beams and even webcams that can send video feed on a remote computer/device.
Floor Space Needs
Bar feeders are installed right next to the CNC, so considering if a workshop has enough floor space for such a machine is imperative. Also, remember that it's not only about fitting a machine in a corner, but also providing for enough space for regular maintenance and access in the compartments. Finally, if a crane will be used for the feeding of the magazine, enough maneuvering space should be considered.
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CNC Indexing & Feeding Technologies offers great prices on bar loaders and other cnc machine tool accessories. Contact them today for more information.
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