Introduction of SF-HC25K:
SF-HC25G plasma cutting torch height controller is an automatic torch height control module specially designed for portable plasma cutting machines.
The SF-HC25G plasma cutting torch height controller is easy to operate, easy to debug, affordable and fully digitally controlled to achieve reliable performance. It is an ideal accessory product for manufacturers of welding and cutting equipment. The main unit and panel split structure make it very suitable for portable cutting machines.

Important Statement of SF-HC25K:
1. You must verify whether the selected power supply meets the specifications you require before installation.
2. Do not install or insert or unplug the plug when the power is on.
3. The installation location should be as far away as possible from the heat source.
4. The enclosure of the controller must be well grounded to prevent electric shock or affect the operation of the controller.
5. The steel to be cut must be well grounded and well connected to the controller housing to ensure the accuracy of the height control.
6. Please handle with care. Do not bump or vibrate violently to avoid damage to the product.
7. Do not disassemble the cutting torch height controller or change its internal structure to avoid accidents or malfunctions.

Technical Characteristics of SF-HC25K:

1. This product uses 32-bit arm as the core, two sets of 3-digit digital tube display, digital control. The linear adjustment device is not included inside, which greatly improves stability.

2. The speed parameters can be modified and can be modified arbitrarily according to the power supply and lifting mechanism.

3. The circuit adopts the chip technology, there is no adjustable device inside, and the full digital control technology ensures the high reliability of the product.

4. Simple operation, two sets of digital tubes display the set arc pressure, and the actual arc voltage respectively, which is simple and intuitive. There are 3 knobs for setting parameter operations.

5. Easy to control interface, suitable for all plasma cutting CNC systems, can also be used alone.

6. Adopt the proximity positioning mode of the proximity switch.

7. PWM output, 255 speed adjustable, precise control of motor speed, multi-speed current setting, short circuit protection.

8. The anti-collision function of the cutting tool. When the cutting nozzle touches the steel plate, the controller will quickly lift the cutting tool a certain distance to effectively protect the cutting nozzle.

9. All input and output are optoisolated. Plasma voltage feedback adopts a linear optoisolator and independent isolated power supply. It is very compatible with imported plasma power supplies of various brands with its own voltage divider.

10. Integrated arc start success judgment function, arc starts success feedback function.

Main Specifications:

Power requirements: DC24V±10%3 A/50Hz

Applicable motor: 24V DC brush motor

Drive mode: PWM

Output current:

Initial positioning mode: proximity switch or mechanical switch (normally open normally closed through jumper cap setting)

Maximum control accuracy: ±1V

Box size: host 145X90X42mm panel 120X55X40mm

Working environment temperature: -10 ~ 60 ° C

Detection system: isolated arc voltage divider (B2 version)

Four wires are required from the voltage divider of the SF-HC25G height adjuster and the plasma power connection. The two wires are at the port where the plasma starts to arc, and the plasma cutter will have it. The arc voltage signal is two lines divided into positive and negative poles. If the plasma power supply does not have a dedicated port, the plasma power supply housing needs to be opened and connected from the secondary rectification inside the plasma power supply, which is the original arc voltage of the plasma power supply.

You only need to connect the ground wire because the interference from the plasma power supply is too large. The ground wire needs to use a copper rod with a diameter of 50mm or two angle steels with a length of 2 meters. Go underground. Connect to the housing of the plasma power supply.

1. This flame/plasma cutting machine Z-axis torch lifter is driven by DC gear motor to lift the torch up & down

2. The most important part of the device, which is to keep the machine's cutting accuracy and to support plasma arc positioning function, is equipped with NPN proximity switches

3. This lifter's mechanical movement part is made of Taiwan TBI ball screw, standard linear shaft(SFC) & linear slider on the ends; torch clamper/holder is made of bearing steel, and fastened by linear sliders, which is to ensure the lifter movement's stability & verticality

4. Convenient to install, work simple, improving the work efficiency

Air control plug definition of JYKB-100-DC24V:

1 foot --D +; (motor positive)

2 feet --D -; (motor negative)

3 feet --Zero; (positioning normally open output)

4 feet --COM; (positioning normally open output)

Note: Built-in limit (reverse diode)

Parameter of JYKB-100-DC24V:

1. T-304 stainless steel screw

2. Includes jig (torch range 12mm-38mm)

3. Lift inside a plasma arc positioning

4. Aluminum body, the upper and lower aluminum sheet thickness of 8mm, forming a processing center

5. Four-core plug

6. Colour: black spray housing

7. Working stroke: 100mm

8. Working voltage: DC24V

9. Bearing weight: 3 kg

10. Dimensions: length 320 * W 80 * H 60

11. Mounting Hole Size Length: center distance between two holes 40mm