Kjellberg iQ 4500

Q: How much does the Kjellberg iQ 4500 cost?

The price estimate for the Kjellberg iQ 4500 is uncertain: we have no price for it that we can cite and no estimate we can stand behind, so we give no figure. Configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/kjellberg-iq-4500#price; the request is passed to Kjellberg or an authorised dealer.

Specs verified 2026-10-06 · kjellberg.de Updated 2026-10-06

Kjellberg iQ 4500 plasma cutting power source

Image: kjellberg.de, Kjellberg

Key Specifications

cutting current

20 - 450 A (at 100% d.c., ambient temperature 40 °C)

marking current

5 - 60 A (at 100% d.c., ambient temperature 40 °C)

cutting range mild steel recommended

0.5 - 70 mm (0.02 - 2.8 in)

cutting range mild steel maximum

120 mm (4.7 in)

piercing mild steel

70 mm (2.8 in)

cutting range stainless steel maximum iq gas o2

60 mm (2.4 in)

How much does the Kjellberg iQ 4500 cost?

Price estimate

Uncertain

We do not have a price for the Kjellberg iQ 4500 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Overview

The Kjellberg iQ 4500 is the most powerful plasma power source of the iQ-Series, with a cutting current of 20 - 450 A. It is built for thick material: mild steel up to 120 mm (4.7 in) and, with the iQ-Gas version, stainless steel up to 130 mm (5.1 in).

Mild steel piercing is the figure that stands out. It is listed at 70 mm (2.8 in), and the recommended mild steel range is 0.5 - 70 mm (0.02 - 2.8 in), so on this unit everything inside the recommended band can also be pierced. On the smaller iQ models the piercing figure sits below the top of the recommended range.

The non-ferrous columns need more care, because the two gas versions are far apart. With iQ-Gas the stainless steel maximum is 130 mm and the aluminium maximum is 120 mm, with piercing at 50 mm (2.0 in) and 60 mm (2.4 in). With iQ-Gas O2 both metals stop at a 60 mm maximum. Thick stainless or aluminium work therefore presupposes the iQ-Gas version, whose cutting gases include Ar, H2 and F5.

For its output the cabinet is compact: 1150 x 695 x 1510 mm, the same as the other iQ models, at 355 kg (783 lb). The slow fuse is 180 A and the maximum connected load is 109 kVA, on mains bands of 380 - 400 V, 415 - 440 V or 440 - 480 V at 50/60 Hz. The brochure lists integration via EtherCAT or RS-485.

Full Specifications

Parameter	Value
Cutting Current	20 - 450 A (at 100% d.c., ambient temperature 40 °C)
Marking Current	5 - 60 A (at 100% d.c., ambient temperature 40 °C)
Cutting Range Mild Steel Recommended	0.5 - 70 mm (0.02 - 2.8 in)
Cutting Range Mild Steel Maximum	120 mm (4.7 in)
Piercing Mild Steel	70 mm (2.8 in)
Cutting Range Stainless Steel Maximum Iq Gas O2	60 mm (2.4 in)
Piercing Stainless Steel Iq Gas O2	30 mm (1.2 in)
Cutting Range Stainless Steel Maximum Iq Gas	130 mm (5.1 in)
Piercing Stainless Steel Iq Gas	50 mm (2.0 in)
Cutting Range Aluminium Maximum Iq Gas O2	60 mm (2.4 in)
Piercing Aluminium Iq Gas O2	40 mm (1.6 in)
Cutting Range Aluminium Maximum Iq Gas	120 mm (4.7 in)
Piercing Aluminium Iq Gas	60 mm (2.4 in)
Cutting Gases Iq Gas O2	O2, N2, Air
Cutting Gases Iq Gas	O2, N2, Air, Ar, H2, F5
Marking Gases	Ar, N2, Air
Mains Voltage	380 - 400 V, 50/60 Hz; 415 - 440 V, 50/60 Hz; 440 - 480 V, 50/60 Hz
Fuse Slow	180 A
Max Connected Load	109 kVA
Protection Class	IP 21S
Machine Dimensions	1150 x 695 x 1510 mm (45.3 x 27.4 x 59.4 in)
Machine Weight	355 kg (783 lb)

Specifications sourced from kjellberg.de — verified 2026-10-06

Strengths & Limitations

Strengths

Mild steel piercing at 70 mm (2.8 in), matching the top of the 0.5 - 70 mm recommended range
Mild steel maximum of 120 mm (4.7 in) and, with iQ-Gas, stainless steel up to 130 mm (5.1 in)
Cutting current of 20 - 450 A at 100% d.c., rated at an ambient temperature of 40 °C
Weighs 355 kg (783 lb) in the 1150 x 695 x 1510 mm cabinet shared by the series
Mains voltages from 380 - 400 V to 440 - 480 V at 50/60 Hz
Can be combined with the Q-Torch Auto Change System

Limitations

With iQ-Gas O2, stainless steel and aluminium stop at a 60 mm maximum
Stainless steel piercing is 50 mm even with iQ-Gas, far below the 130 mm maximum
Needs a 180 A slow fuse and a maximum connected load of 109 kVA
Q-Bevel is listed for 6 to 50 mm only

Best For

Thick mild steel plate, pierced up to 70 mm Stainless steel up to 130 mm and aluminium up to 120 mm with the iQ-Gas version Steel construction and plant engineering cutting cells Automated lines integrated via EtherCAT or RS-485

Frequently Asked Questions

01 What is the maximum thickness the iQ 4500 cuts?

Kjellberg states mild steel up to 120 mm and stainless steel up to 130 mm. The table lists the stainless figure for the iQ-Gas version, with aluminium at a 120 mm maximum; with iQ-Gas O2 both metals are listed at 60 mm.

02 How thick can the iQ 4500 pierce?

Mild steel piercing is listed at 70 mm (2.8 in). With iQ-Gas, stainless steel piercing is 50 mm and aluminium piercing is 60 mm. With iQ-Gas O2 the figures are 30 mm for stainless steel and 40 mm for aluminium.

03 How does the iQ 4500 compare with the iQ 3000?

The iQ 3000 lists 20 - 300 A, a mild steel maximum of 80 mm and piercing at 50 mm. The iQ 4500 lists 20 - 450 A, 120 mm and 70 mm. Both share the cabinet size; the iQ 4500 needs a 180 A slow fuse, the iQ 3000 a 125 A one.

04 What electrical connection does the iQ 4500 need?

A 180 A slow fuse and a maximum connected load of 109 kVA. The mains voltages row lists 380 - 400 V, 415 - 440 V and 440 - 480 V at 50/60 Hz. Protection class is IP 21S.