Q:The price of SteelTailor THC is more than 1000 dollors,and other supplier’s only 3-400 dollors,Why so much different?

A:SteelTailor  Arc voltage sensing THC is specially designed for SteelTailor CNC cutting machines.

After so many years of rigorous testing and constantly updated matches by SteelTailor,The quality is very high.The function is multiple .On this basis we have developed arc voltage and capacity THC .It is an THC both for Flame and Plasma automatic sensing.The THC of SteelTailor is is competitive price and more better than THC valued 3-400dollors.

Q)  The CNC controller is showing STOP warning in the controller AUTO mode.

A) Please check if the EMG switch is kept pressed. If EMG switch is pressed this could happen.
If the EMG switch is pressed when power ON and released when power OFF, After that if power ON the machine this error will come. To resolve the issue Power off the machine then press the EMG switch and then power ON the machine and go to AUTO then release the EMG switch to solve the issue.

Q:Starting operations of SteelTailor machine with Plasma cutting
A:(1)  Set up the six wire connections between the plasma and the CNC machine as per the manual.





Connection J27 & J28 are inside the plasma machine. You need to open the plasma power source to give this connection.
Caution: The J27 and J28 is very high voltage pin 50 ~ 300 VDC while working so give good insulation for the connector. 
(2)  Place the correct parts to the Plasma torch make sure the parts you put as per the plasma machine user manual. Check if these part are with you or check the manual for alternative parts 

(3)   Set the plasma to any one of the mode, the second option recommended consumable life.

(4)

(5)  Turn on the plasma machine set plasma Amps (output current) to 105 amps set the cutting speed according to the chart in the CNC machine or program. Refer the CNC manual for speed setting.

(6)  How to change plasma cutting machine cutting speed?
(a)  First set the maximum cutting speed in SETUP [F4]----SPEED[F1]----MACHINING SPEED set the value is mm/min in metric mode or inch/min in inch mode
(b) The value set in the MACHINING SPEED is the maximum speed at which the machine will move while cutting
(c)  In AUTO mode the cutting speed can be adjusted while cutting operation by pressing 

User can increase speed to a maximum value set in SETUP[F4]----SPEED[F1]----MACHINING SPEED 
(d)  In AUTO mode before the cutting operation or while the cutting is paused a desired cutting speed can be entered by pressing F key on the controller. You can enter the desired cutting speed (Value should be set between 05 ~ MACHINING SPEED) after entering the value Press ENTER key.
(7)  After setting the speed Make sure the CNC is in plasma mode  and Pierce time
SETUP [F4] --- CTRL [F5] --- PLASMA/FLAME (1/0) set 1 for plasma.
SETUP [F4] --- PLASMA [F4] ---PIERCE TIME 0~12 (This time depend on the thickness of the material)
(8)  Also set the THC according to the THC manual.
(9)  After setting all this select a drawing from the LIB press ENTER and then APPLY to set the dimensions.
(10)   Go to AUTO mode press Green button now the CNC should start cutting process.
(11)  Cutting process:-The THC first comes down and touches the plate and moves up to a height set by you in the THC. At that point the plasma flame will get ignited and start to make a hole (Pierce) in the plate the torch wait till the pierce time is over (set in the CNC controller). The pierce time is over the CNC start moving and cut the desired shape on the plate.

Q:-  While cutting the plasma power source stop working because of low air pressure how to restart cutting from the point in stop cutting?

A:- Make sure that your ARC FEED BACK is set in your CNC controller. If this parameter is set one if the plasma stop working the CNC will also automatically stop movement.

In this cause you can just press PREHEAT key on the controller key pad to restart cutting and movement together.
If your plasma power source is old model and you are not using ARC feedback, then Press RED key to stop the machine movement. As the machine movement come to a paused a four options will appear.  Press BACKWARD [F6] and the machine will start moving back along the shape it was cutting. As it move back and reach the point where it stopped cutting press RED key to stop the movement. Next press PREHEAT key on the controller keypad to restart cutting operations normally.

Que:- Why SteelTailor cutting machine THC is not moving  up or down when cutting? . But cutting tick plates the THC is working.

ANS:- Please check the THC(ST-THCEX 03)  SENSITIVITY knob this knob value should be set to minimum. If this value is set then the THC responds will come down

Q:Why  motion of Z axis cannot be stopped when returning to original point?    

A:There is a failure with the position switch on the Z axis，Check if the position switch is working or not. If the switch is not on-state when Z axis is lift up, change the switch timely.

Q:Why SteelTailor oxy-fuel cutting torch cannot be turned off?

A:There is a failure with the relay inside the electrical box.

Q:Unsuccessful ignition

A:1. The power supply of the CNC and plasma power source is abnormal.
2. The distance between the torch and job is too long. Standard distance is 1mm~1.3mm.
3. The grounding cable of the plasma power source is not connected to the job.
4. Lack of Air pressure.
5. There is a failure with the relay inside the electrical box.
6. Consumable worn out.

Q:Unsuccessful ignition

A:1. The power supply of the CNC and plasma power source is abnormal.
2. The distance between the torch and job is too long. Standard distance is 1mm~1.3mm.
3. The grounding cable of the plasma power source is not connected to the job.
4. Lack of Air pressure.
5. There is a failure with the relay inside the electrical box.
6. Consumable worn out.