Common Troubleshooting of CNC Plasma Plate Cutting Machine
Home » H Beam Fabrication Machine » Product News » Common Troubleshooting of CNC Plasma Plate Cutting Machine

Common Troubleshooting of CNC Plasma Plate Cutting Machine

Views:0     Author:Site Editor     Publish Time: 2021-10-13      Origin:Site

Common Troubleshooting of CNC Plasma Plate Cutting Machine

CNC Strip Plate Cutting machine is the basic and requisite equipment in nearly all facilities of manufacturing industry involving processing of sheet metal. With technique advancement of Plate Cutting/ Control System/ Driving System, as well as growing demand on cutting precision and consistency, the machine gets more extensive application.

 

  1. General Picture of the Machine:

    1)       There are several types of CNC Strip Plate Cutting machine in broad category;

    2)       In the time sequence of put onto market, the three major kinds of machines are listed as:

    a)       CNC Flame Plate cutting machine (Including for Special Shape Plate Cutting, Triple Plate Cutting or Edge Beveling, Strip Plate Cutting with Oxygen and Acetylene/ Propane);

    b)      CNC Plasma Plate Cutting machine – For profiled plate cutting with plasma power supply;

    c)       CNC Laser Plate Cutting machine – For profile plate cutting with laser generator.

    3)       Of these, the CNC Plasma Plate Cutting machine is the “medium” product in terms of machine price, cutting capacity, and fineness of cutting kerf. It has got wide and popular use for over decades of years. 

2. Plasma Power Supply:

1)       The role of plasma power supply in CNC Plasma Sheet Metal Cutting machine, is like hands and arms for a people: It is the execution unit of the machine, and determines quality of plasma contour plate cutting in the largest extent;

2)       Depending cutting capacity in terms of thickness and output current, there are several models of plasma power supply to choose from, meeting various demands of all customers;

3)       Meanwhile, plasma power supply is a delicate mechanism which needs strict and full round maintenance and service together with the CNC Plasma Plate Cutting machine itself;

4)       On the other hand, grasping knowledge on common troubleshooting on the plasma power supply is also of vital importance for making satisfactory operation of the CNC Plasma Sheet Metal Cutting machine. 

3. Common Troubleshooting of Plasma Power Supply:

Here we share tips on common troubleshooting of plasma power supply based on years of experience. Before that, we stress that it is based on our accumulation on understanding of CNC Strip Plate Cutting machine, and just for your reference. You can use it as a guide for routine checking.  

List of tips on common troubleshooting of plasma power supply:

1) Lamp Failure:

a)       Phenomenon: With the switched on of power, its indicating lamp and digital meter does not illuminate;

b)      Possible Cause and Corresponding Solution:

i.           The three-phase power is lack of phase --- Check the power supply;

ii.           The switch of power supply is spoiled --- Replace the switch;

iii.           The 3A fuse for power control is broken --- Replace the fuse.

2) No Arc Striking with Power Feed-in:

a)       Phenomenon: No arc striking with power switch turned on and its indicating lamp illuminates.

b)      Possible Cause and Corresponding Solution: Lack of phase/ Undervoltage or Overvoltage of the three-phase power --- Check the power supply;

3) No Arc Striking, or Arc Broken in the process of Cutting:

a)       Phenomenon: No arc striking, or arc is broken during CNC Plasma Plate Cutting machine working. At the same time, Overheating Indicating lamp illuminates;

b)      Possible Cause and Corresponding Solution:

i.           High ambient temperature --- Let the CNC Plasma Sheet Metal Cutting machine in break state for certain period of time until it cools off;

ii.           Cooling fan rotates slowly or does not work at all, making poor cooling effect during cutting; --- Check and repair the cooling fan if necessary;

iii.           Temperature relay fails --- Replace the relay

4) No start-up of the machine:

a)       Phenomenon: The CNC Plasma Plate Cutting machine could not be started. Besides, the Gas Pressure Indicating lamp does not illuminate;

b)      Possible Cause and Corresponding Solution:

i.           No gas pressure --- Check and make sure proper connection of gas pipeline and tubes;

ii.           Pressure of the gas supply is too low --- Make adjustment;

iii.           Damaged pressure gauge --- Replace the gauge;

5) Poor Cutting quality:

a)       Phenomenon: The CNC Plasma Sheet Metal Cutting machine does not deliver eligible special shape plate cutting;

b)      Possible Cause and Corresponding Solution:

i.           Gas pressure is too high or too low --- Adjust gas pressure;

ii.           The Air filter regulator cup is blocked --- Rinse with water regularly;

iii.           Thickness of workpiece exceeds cutting capacity of the plasma power supply--- Match thickness of workpiece with specification of plasma power supply;

iv.           Torch electrode and nozzle fail --- Replace;

v.           Plasma arc is not perpendicular to the workpiece --- Adjust torch angle;

vi.           Cutting speed is too fast or too slow --- Adjust cutting speed based on cutting technique


Home

WUXI AMASS MACHINERY CO., LTD
WUXI JACK TECHNOLOGY CO., LTD
0510-83297829
English Language: 15852755799; 
Chinese Language: 13621515089
No. 2, Ouyang Road, Luoshe Town, Wuxi City, Jiangsu Province, China

CONTACT US
© Wuxi AMASS Machinery Co., Ltd  2021 All Rights Reserved.
备案证书号:苏ICP备13045244号-1