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12

Operating Procedure & Techniques 
for PLASMA Cutting

● 

Amperage

Standard rule of thumb is the thicker the material the more amperage required.
On thick material, set the machine to full output and vary your travel speed. On thinner material, you need to turn down the  
amperage and change to a lower-amperage tip to maintain a narrow kerf.  The kerf is the width of the cut material that is removed 
during cutting. 

● 

Speed

Amperage and speed are critical to producing a good quality cut. The faster you move (especially on aluminium), the cleaner your 
cut will be.   To determine if you're going too fast or too slow, visually follow the arc that is coming from the bottom of the cut.  
The arc should exit the material at a slight angle away from the direction of travel.  If it's going straight down, that means you're  
going too slow, and you'll have an unnecessary buildup of dross or slag. If you go too fast, it will start spraying back onto the 
surface of the material without cutting all the way through. Because the arc trails at an angle, at the end of a cut, slow your cutting 
speed and angle the torch in to cut through the last bit of metal. 
 

● 

Direction

It is easier to pull the torch towards you than push it. The plasma stream swirls as it exits the tip, biting one side and finishing off 

on the other leaving a bevelled edge and a straight edge. The bevel cut effect is more noticeable on thicker material and needs to 

taken into consideration before starting your cut as you want the straight side of the cut to be on the finished piece you keep.

 

 

● 

Torch tip height & position

The distance and postion of the plasma torch cutting tip has an affect on the quality of the cut and the extent of the bevel of the cut.

The easiest way to reduce bevel is by cutting at the proper speed and height for the material and amperage that is being cut. 

Correct torch height and 
square to the material.
Minimum bevel & equal bevel
Longest consumable life

Torch angled to the material.
Unequal bevel, one side may 
be excessively beveled.

Torch height too high.
Excessive bevel, plasma 
stream may not cut all the 
way through the material

Torch height too low.
Reverse bevel. Tip may  
contact the work and short 
out or damage the tip.

 

● 

Tip size and condition

The tip orifices focus the plasma stream to the work piece. It is important to use the correct size tip for the amperage being used, 

for example a tip with a 1.0mm orifice is good for 0-40 amps whereas a 1.3mm orifice is better for 40-80 amps. The low-amp tip has 

a smaller orifice which maintains a narrow plasma stream at lower settings for use on thin-gauge material. Using a 25 amp tip at an 

60 amp setting will blow out and distort the tip orifice and require replacement. Conversely, using an 80-amp tip on the lower 

 

settings will not allow you to focus the plasma stream as well and creates a wide kerf. The condition of the  tip orifice is critical to 

the quality of the cut result, a worn or damaged tip orifice will produce a distorted plasma stream resulting in a poor cut quality. 

 

 

 

● 

Electrode condition

 

A fixed gap is established between the electrode and the inside of the cutting tip.  Electrons arc across the gap, ionizing and super 

heating the air creating the plasma stream. The electrode contains an insert in the end made of a highly conductive material called 
hafnium. This insert erodes with use and develops a pit in the end of the electrode, when the pit becomes too much poor quality 
cuts will result and necessitate replacement of the electrode. 
 
 

 

New Tip 

Worn Tip

 

New Electrode 

Worn electrode

Razor

Cut

RAZOR CUT8O

Содержание Razor Cut80

Страница 1: ...zorCut8O YEAR MACHINE WARRANTY 3 3 RazorCut XA CUT80RZ Operating Manual Please read and understand this instruction manual carefully before the installation and operation of this equipment Xcel Arc 20...

Страница 2: ...RAZORCUT Plasma Cutters are manufactured and compliant with CAN CSA E60974 1 ANSI IEC 60974 1 AS NZ60974 1 guaranteeing you electrical safety and performance Air quality Good air quality is essential...

Страница 3: ...Descriptions 9 Set Up and Operating Procedure 10 11 Plasma Cutting Procedure Techniques 12 14 SC80 Plasma Torch Parts Breakdown 15 Machine Warranty 16 17 Notes 18 19 RazorCut RAZOR CUT8O REGISTER YOUR...

Страница 4: ...nerated whilst welding or cutting keep your head out of the fumes Keep the working area well ventilated use fume extraction or ventilation to remove fumes and gases In confined or heavy fume environme...

Страница 5: ...ssure If damaged a cylinder can explode Because gas cylinders are normally part of the welding process be sure to treat them carefully CYLINDERS can explode if damaged Protect gas cylinders from exces...

Страница 6: ...er table This equipment is of automatic voltage compensation which enables the maintaining of the voltage range within the given range In case that the voltage of input power supply amperage exceeds t...

Страница 7: ...aterial such as hafnium and cerium This insert erodes with use also the nozzle orifice will erode with use Quality of the air used is paramount to longer life of electrodes and nozzles in short clean...

Страница 8: ...aintenance work The RAZOR CUT80 provides great portability with stacks of cutting power to get the job done with outstanding speed and a great finish Built to our specification and manufactured in com...

Страница 9: ...Digital Amperage metre 2T indicator It illuminates when the machine is under 2T status 6 Air Pressure Gauge 7 Amperage Control Dial 8 Output connector DC connect to the work piece 9 Torch connection D...

Страница 10: ...4T When 2T operation is selected press trigger Arc starts release trigger Arc stops When 4T operation is selected press and release trigger Arc starts press and release trigger Arc stops 6 Set amperag...

Страница 11: ...Plasma has high arc voltage if the job or bench is wet and you place your hand or arm on it you can become part of the circuit and receive a shock be sure you are wearing leather gloves Full length p...

Страница 12: ...t of the bevel of the cut The easiest way to reduce bevel is by cutting at the proper speed and height for the material and amperage that is being cut Correct torch height and square to the material M...

Страница 13: ...zle orifice dramatically affecting cut quality in terms of edge squareness dross formation and edge smoothness Minimising the moisture in the air supply is absolutely critical to quality plasma cuts a...

Страница 14: ...l When the pierce is complete proceed with cutting Safety Trigger Operation The Suregrip SC80 torch supplied with the RazorCut 45 machine has a new design of safety trigger Just pull back on the trigg...

Страница 15: ...ription SC8020 13 Cutting Tip 1 3mm 11a SC8022 09 Cutting Tip 0 9mm Cross Groove 12 SC8026 10 Contact Cutting Tip 1 0 mm 40 50A SC8026 11 Contact Cutting Tip 1 1 mm 50 60A SC8026 12 Contact Cutting Ti...

Страница 16: ...goods of any alleged defect shortage in quantity damage or failure to comply with the description or quote You shall also afford Esseti NZ Ltd the opportunity to inspect the goods within a reasonable...

Страница 17: ...Earth Clamps MMA TIG Welding Torch Consumables such as Tungsten Electrodes Collet Collet Body Alumina Nozzle Torch Head Torch Head water Cooled Torch Head Flexible Back Caps Gas Lens Torch Handle Cup...

Страница 18: ...18 NOTES...

Страница 19: ...19 NOTES RazorCut RAZOR CUT8O...

Страница 20: ...20 RazorCut Esseti New Zealand Limited PO Box 4189 Palmerston North 4442 Phone 06 355 1103 Fax 06 354 2437 Email sales esseti co nz www esseti co nz Xcel Arc Esseti NZ LTD 2020 New Zealand Limited...

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