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HALANSM® Shield Z4020 Swirl Gas Cap .11.835.201.1571 for Kjellberg Plasma Cutting Torch Consumables Replacement
HALANSM® HLN-Z4020 aftermarket swirl gas cap Z4020 for Kjellberg HiFocus and PerCut. Copper 2.0 mm bore, 50-80A, stable vortex cutting.
HLN-Z4020 / .11.835.201.1571
HALANSM®
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Technical Specifications
Product Description
Catalogue
Product Type
Shield / Swirl Gas Cap
Original Reference
Z4020 / .11.835.201.1571
Gas
O2, Air, N2, ArH2
Material
Copper alloy
Vent / Cooling
Central 2.0 mm bore for vortex flow
OD / Height / Thread
Confirm exact specs with us.
HALANSM®
SILVER CUTTING
Z4022 / .11.835.201.1551
HALANSM® Kjellberg Z4020 Swirl Gas Cap
Aftermarket plasma swirl gas cap for Kjellberg HiFocus 80i, 100, 130i, 160i; PerCut 160, 170
HALANSM® HLN-Z4020 is an aftermarket plasma swirl gas cap with copper alloy and a 2.0 mm bore, built for Kjellberg HiFocus and PerCut torches to deliver stable vortex gas flow and clean cuts.
Product Overview
The HLN-Z4020 installs as the outer shield in the plasma torch wear stack. It directs swirling gas around the arc column, stabilizes plasma energy, and protects internal parts from heat and spatter. The 2.0 mm bore supports the 50-80A current range.
Key Advantages
Stable Vortex Flow
· 2.0 mm center bore maintains consistent gas swirl for accurate, dross-free cutting.
Copper Alloy Body
· Machined copper construction dissipates heat and resists thermal wear.
Verified OEM Cross Reference
· Replaces Kjellberg Z4020 / .11.835.201.1571 for listed HiFocus and PerCut configurations.
Batch Inspection
· Each lot is checked for bore dimension, sealing surface, and consistent tolerance.
Specifications
Part Type
Shield / Swirl Gas Cap
OEM Reference
Z4020 / .11.835.201.1571
Material
Copper Alloy
Gas
O2, Air, N2, ArH2
OD / Height / Thread
Confirm exact specs with us
Vent / Cooling
Central 2.0 mm bore for vortex flow
Compatible Equipment and Application
Compatible with Kjellberg HiFocus 80i, 100, 130i, 160i; PerCut 160, 170 plasma systems. Suitable for mild steel, stainless steel, and aluminum with O2, air, N2, or ArH2. Provide your torch model and original part number for fitment check.
Bore Selection for Z Series
Model
Bore
Current Range
HLN-Z4015
1.5 mm
25-50A
HLN-Z4020
2.0 mm
50-80A
HLN-Z4022
2.2 mm
80-100A
HLN-Z4025
2.5 mm
100-160A
HLN-Z4030
3.0 mm
160-200A
HLN-Z4140
4.0 mm
280-440A
Select HLN-Z4020 by bore and current only. Neighbouring bores (e.g. Z4022 at 2.2 mm vs Z4025 at 2.5 mm) are not interchangeable — wrong bore disrupts vortex and accelerates wear.
Installation and Handling
· Power down the plasma source and release gas pressure.
· Remove the worn swirl cap, nozzle, electrode, and gas guide.
· Clean the torch seat and threads; inspect O-rings and seals.
· Install electrode, gas guide, and nozzle, then seat the new swirl cap.
· Hand-tighten only; avoid over-tightening copper or brass threads.
· Run a low-amperage test cut to verify arc stability and gas flow.
Frequently Asked Questions
What Kjellberg torches fit HLN-Z4020?
HLN-Z4020 fits the Kjellberg configurations listed above (HiFocus and PerCut families). Share your torch model and OEM part number for final fitment check.
Is HLN-Z4020 an original Kjellberg part?
No. It is an aftermarket replacement compatible with Kjellberg Z4020 series parts. It is not original Kjellberg equipment and is not factory authorized.
What bore and material does Z4020 use?
The cap uses a 2.0 mm center bore and copper alloy body for stable vortex flow. OD and height should be confirmed per torch model.
Can I use HLN-Z4020 with O2 and air plasma?
Yes. It supports O2, air, N2, and ArH2. Always match the electrode and nozzle to the selected gas; O2 and air nozzle bores are not interchangeable.
Why does cut quality drop after installation?
Common causes are wrong bore, dirty torch seat, mismatched nozzle, or over-tightened cap. Reclean the seat, confirm bore size, and perform a low-amperage test cut.
How should I store swirl gas caps?
Store in a dry, clean environment away from moisture and dust. Keep sealing surfaces undamaged and avoid stacking parts that can dent the bore.
Related Products
From the official HALANSM® Kjellberg consumables catalog:
Changzhou Halan Machinery Technology Co., Ltd. focuses on high-quality plasma cutting and welding consumables. We have wide range of Plasma consumable accessories those are made by high grade of material and made by latest method with technology.
