Advance Cnc Machining
China One-Stop Company

Visit us at

Sifangyuan Industrial Park, Xinshapu
Huaide Community, Humen town
Dongguan City, Guangdong Province.


PTJ Shop is Cnc Machining Expert has 12 years experience on custom non-standard parts. As a cnc machining factory We Material research & Design and manufacture products,Material types included machining aluminium,stainless steel,brass,copper,titanium,magnesium and plastic machining etc.,. our factory located in Dongguan, occupies an area Over 5,000 square meters. Cnc Machining Online Quote Serviced aircraft&aerospace, automotive, LED lighting,bike,medical,electronic,mechanical,Oil&Energy and Military industries. Most of Our Customer business who base on Canada, Israel, Japan, Europe and USA, the business grow up year by year. We are sincerely looking forward to your cooperation, warmly welcome you join us to share the market, and expand our business together!

Search This Blog

Contact Form





What are the methods for preventing interference in CNC machining centers?

 The CNC machining center has taken anti-interference measures such as shielding space electromagnetic radiation, absorbing impulse current, and filtering out power

supply clutter, which can prevent the influence of external interference sources on the CNC itself to a certain extent. 

In order to ensure the stable operation of CNC, it is necessary to take the following measures to install and connect in CNC.

  • 1. The CNC should be far away from equipment that produces interference (such as frequency converters, AC contactors, electrostatic generators, high-voltage generators, and power line segmentation devices, etc.)
  • 2. To supply power to the CNC through the isolation transformer, the machine tool where the CNC is installed must be grounded, and the CNC and the drive must be connected to an independent grounding wire from the grounding point.
  • 3. Interference suppression: Parallel RC loop at both ends of the AC coil, and install the RC loop as close as possible to the inductive load; parallel freewheeling diodes at both ends of the DC coil in reverse; connect a surge absorber in parallel at the winding end of the AC motor .

The lead-out cable of CNC machining center adopts twisted and shielded cable or shielded cable. The shielding layer of the cable is grounded at the CNC side, and the signal wire should be as short as possible.

In order to reduce the mutual interference between the signal cables of the CNC machining center and the strong current cables, the wiring should follow the following principles:

Cable types: AC power cord, AC coil, AC contactor.

Wiring requirements: Bundle the cables of group A with group B and group C separately, keep the distance between them at least 10CM, or electromagnetically shield group A cables.

Powered by Blogger.