Plasma Tables, Weld Hours and Blast Rooms: the Sourced Numbers
Cutting first, with the concession up front. Hypertherm publishes that a complete XPR300 plasma system on a quality cutting machine, cutting 25 mm at more than 1,900 mm/min, costs somewhere between $175,000 and $225,000, that a comparable laser system can easily cost three to four times more, and that plasma is especially advantageous above 16 mm. At 25 mm it claims a 170-amp X-Definition process cuts twice as fast as a 4 kW fiber laser on oxygen. All of that is the plasma OEM's own framing, and below roughly 16 mm, where most spool, skid and gusset work lives, even that framing concedes the contest: fiber laser holds 0.2 mm tolerances against plasma's roughly 0.25 mm, with no electrode and nozzle line item.
Welding is measured in this industry in diameter-inches, so here it is in diameter-inches: the published North American baseline is 60 to 80 factored diameter inches per shift per welder, 85 to 100 in very productive shops. One mechanical contractor's published anchor for a single large-bore joint: a 16 in schedule 10 weld took two and a half hours manually. Every FDI a shop adds per shift without adding a scarce ticketed welder is the number an equipment ROI has to speak to.
Handheld laser welding's published economics sit strictly on the non-code side of the shop: brackets, guards, enclosures, skid sheet metal, tack and fit-up work. IPG publishes 4× faster than TIG for its handheld systems; Vantix publishes the same multiple against MIG/TIG for its own line, with operators trained in days. Registered pressure joints stay with Grade B welders inside a CAP holder's program, and this page will not pretend otherwise.
Cleaning: under AMPP-governed coating contracts, blasting to SSPC-SP 10 remains the specified method, and a laser page should say so. Laser cleaning's case is the work around the blast room: weld-seam oxide removal before NDE, weld-zone prep before coating, and refurbishment of drilling and completions equipment, with no abrasive embedment and no media stream. Vantix publishes surface prep up to SP-10 on its cleaning line.