HOW TO CHOOSE THE PERFECT CNC MACHINE FOR YOUR PRODUCTION
center is a great investment for your success, but the question remains: which
machine center is perfect for your production?
centers are known for their high precision, high reliability, high efficiency,
and the ability to machining complex workpieces.
the selection is not thought of thoroughly, you will not be able to exert its
due benefits, and with the high cost of the machining centers now a days, you
really want to guaranty your ROI (return of investment).
to select a CNC machine, you should start with you product and based on you can
- The model.
- The CNC
- The machine
- The main
the selection of the model and the selection of the CNC system, and then select
the machine precision and main specifications.
article, we will illustrate these four aspects and help you understand what to
look for when choosing your CNC machine.
As we said
before, start with your product. Study your product and the process of its
production. Then, with the premise of meeting the processing requirements, choose
the simplest equipment required for the job, which guarantees both the lower risk
Also, try to
choose an economical CNC machine center.
In the processing of mold parts, CNC milling machines and machining centers of
the same specifications can meet the basic processing requirements, but the
price difference between the two machine tools is huge, almost double the
price. Therefore, in the mold processing, only the process of changing the tool
very frequently selects the machining center.
selecting a CNC machining center, know that the same machine can be
equipped with different CNC systems. Depending on these systems, the
performance can vary and directly affect the pricing of the machine.
Now a days,
the types and specifications of CNC systems are extremely huge. Every company
has a range of products in a variety of specifications.
choosing your CNC system, you should look for:
performance versus price
- The ease of use
- The system’s
cannot pursue high-level, new systems based on reputation only. It should be
based on the main performance of the machine, the system performance and
There are 20
to 30 precision inspection items for CNC machining centers, but the most
characteristic to look for are:
repeat positioning accuracy
- Roundness of
the test piece produced by simultaneous machining of above two-axis.
positioning accuracy and repeat positioning accuracy reflect the precision of
each moving part of the axis. The single-axis positioning accuracy refers to
the error range when positioning at any point within the stroke of the shaft,
which reflects the machining accuracy of the machine tool. The repeat
positioning accuracy reflects the positioning stability of the axis at any
positioning point in the stroke, which is an indicator to measure if the shaft
can work stably and reliably.
machines with higher positioning accuracy, you must also pay attention to
whether the feed servo system adopts semi-closed loop or full closed loop mode,
and to the accuracy and stability of the detecting components.
machine tool adopts a semi-closed-loop servo drive mode, the accuracy stability
is affected by external factors.
specification selection of CNC machines
select the main feature specifications of the CNC machining center according to
the determined range of typical workpiece machining dimensions. The main
specifications of the CNC machining center are the stroke range of several CNC
axes and the spindle motor power. The three basic linear coordinate (X, Y, Z)
strokes of the machine tool reflect the machining space allowed by the machine.
The two coordinates X and Z in the lathe reflect the size of the allowable
rotor. As a rule, the contour size of the machined part should be within the
machining space of the machine tool. You must take in consideration the space
required to install the clamp and select a work surface that is slightly larger
than a typical workpiece takes into. Also, the size of the work surface
basically determines the size of the processing space.
motor power of the CNC machining center can also have different configurations
on the same type of machine which reflects on the cutting rigidity and spindle
motor power reflects the cutting efficiency of the machine tool and reflects
the cutting rigidity and the overall rigidity of the machine tool from the
there is a large amount of low-speed machining on a typical workpiece, the
low-speed output torque of the machine must be checked.
with a big investment like purchasing a CNC machine, you should take all
factors into account and take an experts opinion before making any step.
consultation or more information, please don’t hesitate to contact us.