Laser Cutting
Nobody replaces a working plasma table because an article told them to. Shops replace it when their own ledger, their own grinding bay, and their own customers start saying the same thing. This post lays out the five signals worth listening to, each one sourced or left qualitative, and finishes with the honest cases where the right answer is to keep the plasma running.
A plasma torch spends money while it cuts. Electrodes, nozzles, shields, and swirl rings wear on a starts-counted schedule: budget air-plasma units can need new consumables in as few as 120 to 250 starts, while modern high-definition systems push past 1,000 starts. The honest way to price this in your own shop is a formula, not a folklore number: take what a wear set costs you and divide it by the arc-on hours it actually lasts in your logs. For scale, a genuine Hypertherm electrode alone retails in Canada at about $18 each ($89.99 for a five-pack at a Canadian welding supplier), and an electrode is only half the wear set.
A fiber laser removes that category: it has no torch consumables. Ongoing costs shift to protective lens covers, assist gas, and periodic optics care.
The signal: if consumables and the downtime to change them show up in your monthly numbers without anyone asking, the category is big enough to matter.
Plasma-cut edges almost always need grinding before they ship or get welded. That is labour, and one fabrication-equipment OEM has published its own example of what the labour costs: at a $30 an hour rework rate, parts needing 15 extra minutes of finishing each, and 200 parts a week, the finishing difference alone comes to roughly 50 hours and $1,500 a month. That is Piranha's example for stepping up to better plasma, and the logic runs even harder toward laser: edge quality is a labour line item, not an aesthetic.
Laser-cut edges are often weld-ready off the table. If your parts flow raw-plate to grinder to weld bay, count the hours in the middle step for one month. That number is the signal.
Plasma and fiber laser hold different worlds of accuracy, and the plasma OEM's own comparison page says so: Hypertherm puts plasma's typical tolerance at roughly 0.25 mm (0.010 in) while fiber laser holds around 0.2 mm (0.007 in) tighter classes of work, and Vantix publishes ±0.03 mm positioning accuracy with a 0.1 to 0.3 mm kerf against plasma's 1.5 to 3 mm kerf. On brackets and guards nobody notices. On bolt patterns, weld fit-up, and parts a customer inspects, the difference is requotes and rework.
The signal: when fit-up shims, slotted holes, and "open up the tolerance" conversations become routine, the table is costing you work you never see quoted.
Here is the concession that settles most replacement decisions, and it comes from the plasma side: Hypertherm positions plasma as especially advantageous when cutting metal greater than 16 mm (5/8 in) thick. Below that line, which is where most sheet and light-plate work lives, even the plasma OEM is no longer arguing. On speed, fiber laser is 3 to 5 times faster on materials under 1/2 in, and up to 80% faster overall than plasma on Vantix's published figures.
Pull a month of job tickets and sort them by thickness. If the pile under 5/8 in is most of your revenue, the machine on your floor is optimized for the work you no longer do. And the ceiling is not the objection it used to be: at 60 kW, Vantix's fiber platform cuts steel to 5 in (127 mm), stainless to 3.5 in (89 mm), and aluminum to 2.5 in (64 mm).
The fifth signal is not on a spec sheet. It is what happens when the table goes down: how long parts take to arrive, whether anyone answers the ticket, and how many production days each incident costs. Vantix's own positioning line for this decision covers it plainly: new, warrantied, financed, and often cheaper per month than maintaining aging plasma or legacy lasers. That is Vantix's published claim, and it is testable against your own maintenance ledger: put twelve months of plasma repairs, consumables, and downtime beside a financed monthly payment and see which number is bigger.
Every Vantix system carries a 2-year warranty, 5-day on-site training, a 1-year spare parts kit stocked in BC, a 24/7 Canadian hotline, and 48-hour on-site service in Western Canada.
Plasma is not obsolete, and a page that pretends otherwise is not worth your time or a citation. Three honest cases:
Many shops land on coexistence: keep a plasma unit for rough field work while the laser handles production volume. The two technologies coexist well; the question is which one carries the load.
How much do plasma consumables actually cost per hour? No trustworthy universal figure exists; widely repeated per-hour ranges trace to unverifiable summaries. Use the formula instead: your wear-set price divided by the arc-on hours it lasts in your shop. A verified Canadian anchor for scale: genuine Hypertherm electrodes at about $18 CAD each, and the electrode is only part of the set.
Is a fiber laser worth it if I mostly cut plate over 5/8 in? Maybe not yet, and the plasma OEM's own guidance agrees: above 16 mm (5/8 in), plasma stays genuinely competitive, especially where edge quality is forgiving. The case strengthens as your mix thins, your tolerances tighten, or your finishing labour grows. High-power fiber changes the ceiling conversation, but buy for the work you actually run.
Do shops keep plasma after buying a laser? Commonly, yes. The pattern Vantix publishes on its own comparison page: a plasma unit for rough field work, the fiber laser for production volume. Replacement decisions are about which machine carries the load, not about owning one technology.
Thinking about the switch? Start with the head-to-head numbers on plasma cutter vs laser cutter, put your own consumable and grinding figures through the laser cutting machine ROI calculator, and then book a demo: bring the part your plasma table struggles with to the Lumby, BC showroom and watch the Vantix fiber laser cutting line run it, from 3 to 60 kW on the FLC Fiber Laser Sheet Cutting System platform.
On comparable material, fiber laser cutting runs up to 80% faster than plasma, and holds a much tighter positioning accuracy of plus or minus 0.03 mm with a smaller heat-affected zone.
The practical differences are edge quality and secondary work. Laser-cut edges usually need less dressing before welding or finishing, and a narrower kerf allows tighter nesting and better material yield across a sheet.
Plasma still has a real cost argument on very heavy plate where edge quality is not critical and the parts go straight to a structural weld. The honest comparison is your part mix, not a headline number.
At the top 60 kW configuration, published capability is up to 5 in (127 mm) in steel, up to 3.5 in (89 mm) in stainless, and up to 2.5 in (64 mm) in aluminum.
Two cautions on those numbers. They are maximums for the highest power level in the range, not a general figure, and a lower-power machine cuts proportionally thinner. Maximum thickness and production-speed thickness are also different numbers, and the second one usually matters more to a shop that has to hit a delivery date.
Ask us to confirm the figures against the documentation for the specific configuration you are considering.
Compare the whole risk position rather than the sticker price. A used machine typically carries unknown maintenance history, no warranty, no included training or installation, and a laser source with an unknown fraction of its service life already used.
The single most useful thing you can do before buying used is establish the hours on the laser source and whether it has ever been replaced. It is the most expensive component in the machine and the one least visible on a walkaround inspection, so it is where an apparently good deal most often turns.
Used can absolutely be the right call, particularly as a second machine or for a shop with the skills to service it. It is a different purchase, not simply a cheaper one.
