Brands and models

Should Your First OMTech CO2 Laser Be a K40+, a Polar, or a Larger Machine?

Published · By the Laser Lineup editors

Summary

The deciding factor is the size of your pieces. The K40+ is the low-cost way into CO2 if your work fits in 200 × 300 mm. The Polar series gives you a desktop machine with roughly a 510 × 300 mm bed and autofocus. Bigger sheets or higher volume put you in the Maker, Pronto, and Pro lines. The K40+ also has a notable limit: it doesn't pair easily with a rotary.

OMTech's five CO2 lines

OMTech's store has moved to omtech.com, and its menu sorts the CO2 machines like this (prices as listed on September 23, 2026):

LineHow OMTech describes itExample (store price)
K SeriesCompact CO2 laser for beginnersK40+ (Essential Package $599.99)
PolarAll-in-one desktop CO2 laserPolar Lite 55W ($2,199.99); Polar 2 (70W glass tube $3,699.99 / 50W RF $4,999.99)
MakerVersatile CO2 laser for growing workshopsMaker AF2028-80 90W (the model code says 80, the listing says 90W), 20" × 28" ($3,199.99)
ProntoHigh-speed CO2 laser for growing productionPronto 40 90W, 24" × 35" ($4,999.99)
ProIndustrial CO2 laser for advanced productionPro 2440 80W with built-in water chiller ($6,499.99)

These were sale prices and they change often. The Polar Lite 55W was listed as shipping in early November.

The K40+ and its limits

The K40+ has an 8" × 12" (200 × 300 mm) bed and weighs 23 kg. Its product description lists a 40W tube rated for up to about 2,000 hours, recommended engraving speeds of 100–255 mm/s, and an included water pump. The product title says 45W, though, so the listing contradicts itself.

The same description says the machine is not readily compatible with rotary devices. A rotary bundle is still offered on that page. Whatever the package, the K40+'s smoke has to be ducted out of the room, and eye protection for 10.6 µm and a fire extinguisher are on you, as with every CO2 machine here.

What "all-in-one" means on the Polar

The Polar Lite 55W has a 20" × 12" work area, autofocus, a pass-through for long material, 500 mm/s speed, and built-in exhaust fans. It works with LightBurn.

OMTech's setup guide for the earlier Polar 50W shows how far "all-in-one" goes. Air assist, the coolant pump, an exhaust fan, a camera, and a rear pass-through are built in. The kit also includes an external 60W inline fan and 5 meters of duct, which carry the smoke out through a window or vent.

Sources

  1. OMTech — CO2 laser machines
  2. OMTech — K Series (including K40+)
  3. OMTech — Polar Lite 55W
  4. OMTech Support — Setting Up Your OMTech Polar Desktop Engraving Machine
  5. OMTech Support — K40+

Specs and prices are as published on these pages on the date above and can change; check the manufacturer or retailer before you buy.

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