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SR-45i Plasma Cutting System

Kaliburn Sr-45i Plasma Cutting System
  • Overview
  • Specifications
  • Cut Chart

The SR-45i plasma cutter was the first plasma system introduced by the KALIBURN; and with its proven durability and performance has paved the way for other plasma cutting systems. 

The SR-45i is a 45 amp air plasma cutting system that operates at 100% duty cycle, which means no time is lost between plasma cuts. The power supply and plasma torch can run continuously without shutting down or overheating. There is an extreme cost savings on replacement parts and plasma consumables. KALIBURN's patented electrode last up to 4 hours, which is twice as long as any other! The plasma power supply is designed for easy installation, maintenance, and troubleshooting. 

When cutting sheet metal and HVAC insulation to shape; the SR-45i plasma cutter is the machine of choice. It gives a smoother cut and squarer edge, because it has a true constant current output (at full load there's a maximum of only 1.5% current ripple). It operates in four power supply modes, to cut anything from 1/2" mild steel to HVAC insulation.

The KALIBURN SR-45i plasma cutter provides the reliability, precision, and performance one can expect from KALIBURN. This plasma cutting system is both economical to operate and inexpensive to purchase; and has the longest warranty in the industry.

If the SR-45i plasma cutter is not the right choice for your plasma cutting needs, then review all of KALIBURN's conventional and high current density plasma cutters to find the right choice to tackle your plasma cut jobs for many years.
SR-45i System
  • Switching regulated power supply
  • Torch
  • Torch leads (35ft. or 50ft.)
  • Spare parts kit
  • Air regulator
  • 10ft. ground cable
 Power Supply
  • Duty Cycle: 100%
  • Output: 45 amps @ 175 volts D.C.
  • Weight: 200 lbs.
  • Height: 35"
  • Width: 19"
  • Depth 20"
SR-45i Primary Voltages
  • 208V, 1 phase, 60Hz
  • 220V, 1 phase, 60Hz
  • 200/220V, 1 phase, 50Hz
  • 208-480V, 3 phase, 60Hz
  • 220-380V, 3 phase, 50/60Hz (CE)
  • 415, 3 phase, 50Hz (CE)
  • 575, 3 phase, 60HZ
 Power Supply Operates in 4 modes
  1. Mechanized
  2. Auto restart
  3. Expanded metal
  4. HVAC insulation cutting
SR-45i Torch
  • 45 amps air plasma
  • Gas flow: 250 SCFH @ 70psi
  • length 12 1/2"
  • Diameter 1 3/8"
  • Cutting capacity: Gauge to 1/2" mild steel
SR-45i Cutting Chart
Material Type
Material Thicknes
Arc Current
Torch Heigh
Travel Speed
Grate Cutting Travel Speed
(in/GA)
(mm)
(amps)
(in)
(mm)
(ipm)
(mm/min)
(ipm)
(mm/min)
Galvanized
.019 / 28
.5
35
1/16
1.5
450
11,430
235
5,970
Galvanized
.022 / 26
.6
35
1/16
1.5
400
10,160
210
5,335
Galvanized
.028 / 24
.7
35
1/16
1.5
325
8,255
170
4,320
Galvanized
.034 / 22
.9
40
1/16
1.5
300
7,620
155
3,935
Galvanized
.040 / 20
1.0
45
1/16
1.5
285
7,240
150
3,810
Galvanized
.052 / 18
1.3
45
1/16
1.5
220
5,590
115
2,920
Galvanized
.063 / 16
1.6
45
1/16
1.5
200
5,080
105
2,665
 
Mild Steel
1/16
1.6
45
1/16
1.5
275
6,985
135
3,430
Mild Steel
1/8
3.2
45
1/16
1.5
130
3,300
65
1,650
Mild Steel
1/4
6.4
45
.075
2.0
45
1,145
Mild Steel
3/8
9.5
45
.075
2.0
25
635
Mild Steel
1/2
12.7
45
.075
2.0
15
380
 
Stainless
.015 / 28
.4
35
1/16
1.5
425
10,795
220
5,590
Stainless
.018 / 26
.5
35
1/16
1.5
400
10,160
210
5,335
Stainless
.024 / 24
.6
35
1/16
1.5
375
9,525
195
4,955
Stainless
.030 / 22
.8
35
1/16
1.5
350
8,890
180
4,570
Stainless
.036 / 20
.9
35
1/16
1.5
325
8,255
170
4,320
Stainless
.048 / 18
1.2
45
1/16
1.5
300
7,620
155
3,935
Stainless
1/16
1.6
45
1/16
1.5
250
6,350
125
3,175
Stainless
1/8
3.2
45
1/16
1.5
110
2,795
55
1,395
Stainless
1/4
6.4
45
.075
2.0
35
890
Stainless
3/8
9.5
45
.075
2.0
20
510
Stainless
1/2
12.7
45
.075
2.0
10
255
 
Aluminum
1/32
.8
35
.075
2.0
350
8,890
180
4,570
Aluminum
1/16
1.6
35
.075
2.0
250
6,350
130
3,300
Aluminum
3/32
2.4
45
.075
2.0
150
3,810
75
1,905
Aluminum
1/8
3.2
45
.125
3.2
100
2,540
50
1,270
Aluminum
1/4
6.4
45
.125
3.2
30
760

1 inch = 25.4 mm; 1 psi = .0689 bar = 6.895 KPa With the Gas switch in the Set position, adjust the regulator on the rear panel to 65 psi.