Milling machines have been in use for a long time and have evolved exceptionally. Milling machines are used to crush rock or heavy stones.
Before purchasing used milling machines there are few factors to be taken into account along with speed, voltage, power, and torque.
Table of Contents
CHOOSE A MODEL
Depending on the workpiece size and your requirements used milling machine model should be chosen. Based on the model, there will be price variation.
CNC CONTROLLER
Despite having many brands of CNC in the markets, you have to choose the best CNC brand based on:
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Your operation needs.
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Manufacturer’s recommendation.
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Increased market shares.
VOLTAGE LEVEL
You need to check the voltage levels of the used milling machine when purchasing. Each country will have its national voltage supply. Depending on your needs, you have to select the voltage level.
AUTOMATIC TOOL CHANGER
To enhance the production and tool changing capacity, ATC is used. ATC helps in changing the tool quickly thereby reducing the time. There are few types of ATC available such as umbrella type and arm type. To hold more tools, chain-type ATC’s are used. In a used milling machine you need to select ATC based on:
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Recommendation from manufacturers.
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The number of tools needed.
COOLING SYSTEM
The cooling system is needed to cool down the shaft as the axle of the CNC milling machine will create more heat as it will run at maximum speed. Therefore, when purchasing a used milling machine it is necessary to discuss this with the technician.
SIZE
As the size of used milling machines might be large, you need to ensure that there will be space for its storage after purchase.
MOTOR POWER
For processing your products, motor power is essential. Depending on the machine tools, the power requirement also differs. Machines are given the required motor power depending on the needs or manufacturer’s advice.
AFTER-SALES SERVICE
You need to select a firm that will be able to give you after-sales service if there is equipment failure.
TYPES
There are different types of used milling machines that are available. Few types that are found are:
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Vertical milling machine and horizontal milling machine. These two differ in their axle rotation.
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Plain milling machine and universal milling machine. These two differ by their operations.
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Manually controlled milling machines and digitally controlled milling machines.
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Mechanically controlled milling machine.
SPECIFICATIONS
There are few specifications to be understood when purchasing a used milling machine. They are:
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Number of axes
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Distance traveled that is indicated from the axis
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The spindle speed of the axle head.
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Spindle motor power like electric motor power, turbine power, or reciprocating power.
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The number of tools that can be used in the machine.
MEANS OF TRANSPORT
For keeping your machine safe, efficient transportation is needed. Shipping is considered as an ideal transport as the time taken will be less.
CONCLUSION
Before purchasing any milling machines be it used or new, these factors have to be taken into account for long-lasting use of the equipment.