Kjellberg Smart Focus 400

Q: How much does the Kjellberg Smart Focus 400 cost?

The price estimate for the Kjellberg Smart Focus 400 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-smart-focus-400#price; the request is passed to Kjellberg or an authorised dealer.

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

Kjellberg Smart Focus 400 plasma cutting power source

Image: kjellberg.de, Kjellberg

Key Specifications

cutting current

35 - 400 A

marking current

10 - 50 A

cutting range maximum

100 mm (3.9 in)

cutting range recommended

1 - 70 mm (stainless steel 70 mm, mild steel 60 mm)

piercing

50 mm (2.0 in)

duty cycle

100 % (ambient temperature 40 °C)

How much does the Kjellberg Smart Focus 400 cost?

Price estimate

Uncertain

We do not have a price for the Kjellberg Smart Focus 400 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

At the top of the Smart Focus series, the Kjellberg Smart Focus 400 supplies 35 - 400 A and is listed with a maximum cutting thickness of 100 mm (3.9 in). It is the only model of the series whose machine torch is the PerCut 4000; the three smaller units list the PerCut 2000 in that row.

The recommended range needs a careful reading. The row gives 1 - 70 mm and then splits it by material: stainless steel 70 mm, mild steel 60 mm. In mild steel, then, the recommended ceiling is the same 60 mm that the Smart Focus 300 offers, and the gain over that model lies in stainless steel, in piercing and in the reach to 100 mm.

Piercing is listed at 50 mm (2.0 in). The Smart Focus 300 is listed at 40 mm, and for nested parts it is often the figure that decides which source a shop needs.

The supply side is substantial. The slow fuse is 180 A and the connected load is max. 116 kVA on 3x 400 V, 50 Hz. The cabinet keeps the series footprint of 1030 x 680 x 1450 mm and weighs 563 kg (1,241 lb). Duty cycle is 100 %, and the PerCut 4000 is one of the two torches Kjellberg's series brochure names for bevel cutting up to 50°.

Full Specifications

Parameter	Value
Cutting Current	35 - 400 A
Marking Current	10 - 50 A
Cutting Range Maximum	100 mm (3.9 in)
Cutting Range Recommended	1 - 70 mm (stainless steel 70 mm, mild steel 60 mm)
Piercing	50 mm (2.0 in)
Duty Cycle	100 % (ambient temperature 40 °C)
Plasma Machine Torch	PerCut 4000
Quick Change Head	PerCut 4000
Torch Clamping Diameter	50.8 mm (2.0 in)
Plasma Gases	O2, Ar / H2, N2, air
Marking Gases	Ar, N2, Air
Swirl Gases	O2, N2, F5, Air
Mains Voltage	3x 400 V, 50 Hz
Fuse Slow	180 A
Connected Load	max. 116 kVA
Machine Dimensions	1030 x 680 x 1450 mm (40.6 x 26.8 x 57.1 in)
Machine Weight	563 kg (1,241 lb)

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

Strengths & Limitations

Strengths

Cutting current of 35 - 400 A and a maximum cutting thickness of 100 mm (3.9 in)
Piercing listed at 50 mm (2.0 in)
PerCut 4000 as machine torch and as quick change head
Recommended range reaches 70 mm in stainless steel
100 % duty cycle at an ambient temperature of 40 °C

Limitations

In mild steel the recommended range ends at 60 mm, far below the 100 mm maximum
Needs a 180 A slow fuse and a connected load of max. 116 kVA
Plate between the 50 mm piercing figure and the 100 mm maximum needs an edge start
Weighs 563 kg, the heaviest power source of the Smart Focus series

Best For

Stainless steel plate up to the 70 mm recommended figure Nested parts in plate that must be pierced up to 50 mm Occasional edge-started cuts up to 100 mm Bevel cutting with the PerCut 4000 torch

Frequently Asked Questions

01 What is the maximum cutting thickness of the Smart Focus 400?

The maximum is 100 mm (3.9 in). The recommended range is listed as 1 - 70 mm, with stainless steel at 70 mm and mild steel at 60 mm. Piercing is listed at 50 mm.

02 Which torch does the Smart Focus 400 use?

Both torch rows list the PerCut 4000: as plasma machine torch and as quick change head. The series brochure gives a clamping diameter of 50.8 mm for the torches of the series and states that PerCut torches are also for bevel cutting up to 50°.

03 How much power does the Smart Focus 400 draw?

The series brochure lists a connected load of max. 116 kVA and a 180 A slow fuse on a mains voltage of 3x 400 V, 50 Hz. The cutting current of 35 - 400 A is rated at a 100 % duty cycle at an ambient temperature of 40 °C.

04 When is the Smart Focus 400 the better choice than the Smart Focus 300?

When piercing or stainless steel thickness decides. The Smart Focus 300 lists piercing at 40 mm and a maximum of 80 mm; the Smart Focus 400 lists 50 mm and 100 mm. For mild steel the recommended figure is 60 mm on both, so mild steel alone does not justify the larger unit.