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The air carbon arc process is flexible, efficient, and cost effective on practically any metal; carbon steel, stainless steel and other ferrous alloys; gray, malleable and ductile cast iron; aluminum; nickel; copper alloys and other nonferrous metals. Single-phase machines with low open-circuit voltage may not work for air carbon arc gouging (CAC-A). However, any three-phase welding power source of sufficient capacity may be used for air carbon arc gouging. The arc voltage used in air carbon arc gouging and cutting ranges from a low of 35 to a high of 56 volts; thus the open-circuit voltage should be at least 60 volts. The actual arc voltage is governed by arc length and the type of gouging. For most applications CAC-A is used with DCEP (reverse polarity). The electrode should extend at most 7 inches from the gouging torch with the air jet between the electrode and workpiece.
| Electrode Diameter | DC Electrode With DCEP | |||||||||
| mm | Minimum AMPS | Maximum AMPS | ||||||||
| 3.2 | 130 | 210 | ||||||||
| 4 | 150 | 250 | ||||||||
| 5 | 200 | 300 | ||||||||
| 6 | 300 | 350 | ||||||||
| 6.5 | 320 | 370 | ||||||||
| 7 | 350 | 400 | ||||||||
| 8 | 400 | 450 | ||||||||
| 9 | 450 | 500 | ||||||||
| 10 | 500 | 550 | ||||||||
| 11 | 600 | 650 | ||||||||
| Recommended Minimum Air Requirements | ||||||||||
| Type of Torch | Recommended Compressor Rating | |||||||||
| (1)Air Pressure | Air Consumption | Intermittent Use | Continuous Use | |||||||
| psi | kpa | cfm | L/min | hp | kw | hp | kw | |||
| Light Duty (2) | 40 | 280 | 8 | 227 | 0.5 | 0.4 | 1.5 | 1.1 | ||
| General Duty (2) | 80 | 550 | 25 | 708 | 5 | 3.7 | 7.5 | 5.6 | ||
| Multipurpose(3) | 80 | 550 | 33 | 934 | 7.5 | 5.6 | 10 | 7.5 | ||
| Automatic(4) | 60 | 414 | 46 | 1303 | 15 | 11.2 | ||||
| Duration Per Day | Sound Level DBA (in hours) Slow Response | |||||||||
| 8 | 90 | |||||||||
| 6 | 92 | |||||||||
| 4 | 95 | |||||||||
| 3 | 97 | |||||||||
| 2 | 100 | |||||||||
| 1 , 1/2 | 102 | |||||||||
| 1 | 105 | |||||||||
| 1/4 or less | 115 | |||||||||
| Model |
Size Dia x Length mm | Current Range Amp. | ||||||||
| B503.2 | 3.2x305 (355) | 130-210 | ||||||||
| B504 | 4x305 (355) | 150-250 | ||||||||
| B505 | 5x305 (355) | 200-300 | ||||||||
| B506 | 6x305(355) | 300-350 | ||||||||
| B506.5 | 6.5x305x(355) | 320-370 | ||||||||
| B507 | 7x355 | 350-400 | ||||||||
| B508 | 8x305x(355)(455)(510) | 400-450 | ||||||||
| B509 | 9x305x(355)(455)(510) | 450-500 | ||||||||
| B510 | 10x305x(355)(455)(510) | 500-550 | ||||||||
| B511 | 11x305x(355)(455)(510) | 600-650 | ||||||||
| B512 | 12x305x(355)(455)(510) | 750-850 | ||||||||
| B513 | 13x305x(355)(455)(510) | 800-1000 | ||||||||
| B516 | 16x305x(355)(455)(510) | 1000-1200 | ||||||||
| B519 | 19x305x(355)(455)(510) | 1200-1400 | ||||||||
| B525 | 25x305x(355)(455)(510) | 1400-1600 | ||||||||
| Characteristics : |
Size Dia x Length mm | |||||||||
| Electrical Resistance | <18.5u Ω m | without copper coating B509 | 9x355 | |||||||
| Breaking Strength | >24 Mpa | without copper coating Dia: | 8.75-9.25 | |||||||
| Bulk Density | 1.6g/cm³ | without copper coating Length: | 354-356 | |||||||
| Fixed Carbon | 98.50% | |||||||||
| Water Content | <0.3% | |||||||||
| Thickness of copper coating | 0.25±0.05mm | |||||||||
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