Plasma arc cutting is the most cost effective method of cutting metal sheet stock into two dimensional shapes.

Plasma cutting is the process of cutting conductive metals using electrically conductive gas to transfer energy from an electrical power source through a plasma cutting torch to the material being cut. Typical uses of the Plasma system are in cutting of steel or stainless steel letters for signs, architectural components from steel, aluminum or stainless steel, and other metal fabrication requirements.

Photo:   

http://picasaweb.google.com/iehk2008/PlasmaCncRouter#

Feature:

Custom engineered aluminum extrusion design for high strength and rigidity.
High-Speed contouring
User-friendly LCD Handle Controller
Downdraft table
Precision dual X-axis drives
8 Megabytes of Memory with unlimited file size transfer capabilities
File Type: M & G codes, HPGL
Automatic torch height control
USB connection
CAD/CAM Software included
 

Cutting Table

CNC Plasma Cutting Machine is fabricated with heavy-wall structural 3 steel tubing. Steel tubing is welded together to form the 250x130cm cutting table.
The machines are supplied with slat support brackets and 3/16 thick steel strips for every 2 distance. The table can be loaded up to 2 thick 10 x 5 size mild steel plate.
Don't be satisfied with the compromising other machine maker make with extruded aluminum profile which is not build to be reliable. This should be considered when buying a machine that intended to be used for more than a hobby.

Drive System

CNC Plasma Cutting Table uses 3 units powerful stepper motor.
Rack & pinion drive system on X & Y axis and ball screw drive system Z axis. The X and Y axis rack & pinion drive system design to eliminate gear backlash with an anti backlash mechanism.

CNC Controller

Our CNC Controller consists of a large display of the cutting tool paths & easy to use window based interface, is intuitive and used friendly. All commands buttons are displays on one page and allows you to work extremely fast and easy. Visual G-code
and M-code function display and you can start the cutting process at any line of G-code command.
A built in G-code editor is there to allow you to make change to the file as desired.
Feed rate override cutting speeds can be adjusted while the file is running. This allows us to fine tune the cutting speed to achieve the better cutting quality.
Real time preview windows show the file being processed and cutting position includes zoom capability.

Height Control System

Intelligent Digital Height Control monitors the voltages of the plasma are to maintain the distance between the torch tip and the material being cut. At every start cutting point, the torch will be lower until it torches the material and then lift the torch to a specified pierce distance. The pierce height is very important to increase the consumable life especially cutting thick material. During the cutting process, intelligent digital height control will maintain the perfect distance at all times accounting for material shape. You also able to adjust the setting at anytime during a cut.

Parameters:

Working table size: 1300mm*2500mm(standard size); Other size can made to order.
Z-Axis Clearance: 15mm
Resolution: .001mm
Repeatability: +/- .01mm
Cutting Speed: 8000mm/min
Rapid Traverse: 10000mm/min
Drive System X and Y axis: Rack and Pinion
Drive System Z axis: Ball Screw
Standard Work Surface: Downdraft table
Motor: Stepper
 

Plasma Parameters:

China made 60A plasma power:

Input Power:  3 phase380V ± 20% / 50Hz
No-load voltage: 260V
Current adjust range: 63A
Rated duty cycle: 40%
Input capacity: 17KVA
Insulating class: F
Cutting thickness: 20MM
Weight: 104KG

China made 100A plasma power:

Rated input voltage (V):3 phase-380
Frequency (HZ):50/60
Rated input capacity (KVA):27.7
Rated output current (A):100
Duty cycle (%):60
Max. no-load voltage (V):270
Working current (A):120
Max. cutting thickness (MM):30
Weight (KG):130
 

USA Hypertherm 45A

http://www.hypertherm.com/en/Products_and_Services/Mechanized_Plasma/Air_Plasma/powermax45.jsp

USA Hypertherm 60A

http://www.hypertherm.com/en/Products_and_Services/Mechanized_Plasma/Air_Plasma/powermax1000.jsp

 

Arc Voltage Height Controller technical features:

Stepper motor instead of conventional DC motor

Height controller for flame/plasma cutting torch uses the proprietary stepper motor control technology of Micro step to replace the conventional DC motor height control technology, which makes it faster and smoother in addition to significantly extended service life.

Directly displaying the height of cutting nozzle in capacitance height control mode

The advanced height linear calibration technology makes absolute height display and control possible when the distance between the cutting nozzle and work piece is within 3 ~ 30mm in the capacitance mode under for automatic height control in step of millimeter and display accuracy of ± 0.1mm.

Integration of mechanical lifting device and height controller

Detector, controller and drive are highly integrated with adjustable stroke up to 10cm.

All Digital Technology

Circuit uses SMD technology without any adjustable devices; all digital control technology ensures high product reliability.

Simple and convenient linearization calibration

The feature of "one-keystroke height calibration" guarantees that in any circumstances, the user only needs to press one key to calibrate the absolute height measurement and achieve linear height measurement.

Applicability in tough environment

The shell uses tamper-proof, waterproof and moisture-proof aluminum box sealed design, particularly applicable to the severe environment of high temperature or high electromagnetic interference from flame cutting or plasma cutting operation.

Various interfaces easy to use

The interface is simple and easy to control. It is suitable for any flame cutting and plasma cutting CNC system or using alone.

RS232 communication interface

Asynchronous communication function enables connection with CNC system and facilitates parameter setting, automatic/manual control, taper angle transition control and data exchange.


Technical Parameters:

Power Requirements: DC 24V ± 2 V 3 A
Applicable motor: 17/23 hs series of stepper motors
Manual adjustment range: 0-100 mm
Automatic height control range: 3 -30 mmu
Adjusting speed of automatic height control: 3000 mm/min (30 ° slope)
Control precision: ±0.5 mm
Dimensions of box body: (155 × 87 × 71) mm
Operating temperature: -10 ℃ to 50 ℃