HALANSM® Kjellberg V4345 Swirl Gas Cap .11.833.101.157
Aftermarket 4.5 mm Swirl Gas Cap for FineFocus 800 / 900 PB-S80 Plasma Torches
HALANSM® HLN-V4345 is an aftermarket plasma swirl gas cap with a 4.5 mm bore and copper alloy body, built for Kjellberg FineFocus 800, FineFocus 900 and PB-S80 torches to deliver stable vortex gas flow and clean cuts.
Product Overview
The HLN-V4345 installs as the outer swirl gas cap in the FineFocus 800 / 900 plasma torch wear stack, sitting over the nozzle and gas guide. Its 4.5 mm bore and internal swirl geometry spin the plasma gas into a tight, stable vortex around the arc column. This narrows the arc, reduces dross, and protects the electrode and nozzle from heat and spatter. The copper alloy body dissipates heat fast, while the stepped profile and knurled outer edge seat the cap squarely against the torch body for leak-free gas sealing.
Key Advantages
Stable 4.5 mm Vortex
The 4.5 mm bore is sized for 200-360A FineFocus work. It locks in a consistent swirl, giving a narrow kerf and repeatable edge quality.
Copper Alloy Body
Machined copper with radial lathe marks and a stepped cup. Strong thermal conductivity means less deformation under sustained arc heat.
PB-S80 Seat Profile
Stepped base and knurled outer ring index cleanly into the PB-S80 torch. Hand-tighten only; the seat does the sealing.
Aftermarket Batch Check
Each lot is inspected for bore dimension and seat tolerance. Store in a dry, clean place, free of oil and dust.
O2, Air, N2, ArH2 (select per your cutting application)
OD / Height / Thread
Confirm exact specs with us
Vent / Cooling
Stepped bore with internal swirl geometry; outer knurl for grip
Compatible Equipment / Application
Compatible with Kjellberg FineFocus 800 and FineFocus 900 plasma systems using the PB-S80 torch. The V4345 (4.5 mm) serves O2/air cutting in the 200-360A range. Also listed for HiFocus 280i/360i (CrNi/steel, per astratec), but always match the swirl cap bore to your torch family and nozzle before fitting. Provide your torch model and original part number for fitment check.
Bore Selection Guide
Model
Bore
Application
V4335
3.5 mm
FineFocus / PB-S80, lower current dry cutting
V4340
4.0 mm
FineFocus / PB-S80, lower current dry cutting
V4345
4.5 mm
FineFocus 800/900 PB-S80, 200-360A (this part)
V4350
5.0 mm
FineFocus / PB-S80 / PerCut, higher current
V4360
6.0 mm
FineFocus / PB-S80, highest current dry cutting
Swirl cap bore must follow the nozzle: V4345 (4.5 mm) pairs with T2120Y-T2130Y nozzles (200-360A). Fitting a 5.0 or 6.0 mm cap on a 250A nozzle softens the vortex, widens the kerf and shortens electrode life. Keep the cap, nozzle and gas guide from the same torch family.
Installation and Handling
· Power off the plasma source and release gas pressure from the lines.
· Remove the worn shield, then the nozzle and gas guide (swirl ring).
· Clean the torch seat, threads and gas passages; inspect O-rings and seals.
· Seat the electrode, gas guide and nozzle, then thread HLN-V4345 on by hand.
· Tighten until the stepped base contacts the seat — do not force or over-tighten the copper body.
· Run a low-current test cut to confirm arc stability and gas swirl.
Frequently Asked Questions
What machines and torch does HALANSM® HLN-V4345 fit?
It fits Kjellberg FineFocus 800 and FineFocus 900 systems with the PB-S80 torch, replacing V4345 / .11.833.101.157. Send your torch model and OEM number for final fitment check.
What bore and current range does the V4345 swirl cap use?
V4345 has a 4.5 mm bore for the 200-360A range, pairing with T2120Y through T2130Y nozzles. A wider 5.0 or 6.0 mm cap belongs to a different current step.
Is HLN-V4345 an original Kjellberg part?
No. It is an aftermarket replacement compatible with Kjellberg V4345 / .11.833.101.157. It is not original Kjellberg equipment and carries no factory authorization.
Can I use the same swirl cap for O2 and air cutting?
Yes for the cap itself — V4345 supports O2, air, N2 and ArH2 processes. But the electrode and nozzle must match the gas type; O2 and air nozzle bores are not interchangeable.
Why does cut quality drop after replacing the swirl cap?
Most often the bore is wrong for the nozzle, the seat is dirty, or the cap is cross-threaded. Re-clean the seat, confirm 4.5 mm V4345, hand-tighten squarely and test at low current.
How should I store spare swirl gas caps?
Keep them in original packaging, dry and dust-free. Avoid oil, moisture and stacked metal parts that could dent the bore or seat face.
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.
