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A CNC plasma table turns a drawing into finished steel parts in minutes. This guide covers how the machines work, what size you need, what a complete setup really costs, what your shop needs before delivery, and how to tell which features matter. It's written for first-time buyers, from garage hobbyists to fab shops tired of outsourcing.
A CNC plasma table is a computer-controlled gantry that moves a plasma torch over a sheet of metal to cut parts from a digital drawing. Five pieces work together:
A rigid frame holds the material, and stepper motors drive the gantry along X and Y. The frame's stiffness and the drive system decide how accurately the torch follows the path.
A separate power source sends electricity and compressed air through the torch, creating an arc hot enough to melt through steel, stainless and aluminum. Its amperage sets how thick you can cut cleanly.
Sheet metal is never perfectly flat. Torch height control (THC) reads arc voltage and raises or lowers the torch as it cuts, which keeps cut quality consistent and protects consumables.
You draw parts in CAD, then CAM software turns them into toolpaths (G-code). Autodesk Fusion is a popular choice and offers a free personal-use license; SheetCAM is a simpler, plasma-focused option.
Control software runs the G-code, moves the gantry and fires the torch. Every CrossFire runs FireControl, which is free and built for plasma cutting.
Draw a part, generate a toolpath, load it in FireControl, clamp your sheet, and press start. A simple bracket goes from idea to finished part in under half an hour.
The right size depends on the stock you buy, the largest part you make, and the floor space you can give the machine.
Steel is commonly sold in 4' x 8' sheets and cut-down pieces. If you buy full sheets, a 4' x 8' table avoids extra cutting before every job. If you buy offcuts or small sheets, a smaller table cuts the same parts for less.
List the largest parts you'll make in the next two years, such as signs, gussets, brackets or chassis plates, and pick a table that fits them with room to spare.
Leave space to load sheets from the side, walk around the machine, and park your plasma cutter and compressor nearby. The machine's footprint is larger than its cut area.
Smaller tables like the CrossFire and CrossFire XL fit a garage workbench. The CrossFire PRO cuts 4' x 3', the CrossFire PRO MAX is a true 4' x 4', and the CrossFire XR is a 4' x 8' production table with ball screws.
The table is only part of the price. Pick a table and a plasma cutter, adjust the shop items you still need, and see your upfront cost, monthly running cost and how fast the machine pays for itself.
Upfront cost
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Running cost per month
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Per cutting hour
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Table, shipping and plasma cutter prices are current Langmuir Systems prices (shipping to the contiguous U.S.). Compressor, air treatment, electrical, software and consumable figures are typical estimates, not quotes. Sales tax not included.
Most buyers already have half of this. Check each item so your machine is cutting the day it's assembled.
CrossFire tables run on a standard 120V outlet. Your plasma cutter is the bigger load: a 240V circuit lets it reach full output and cut thicker material. Have an electrician check your panel before you buy a cutter.
Plasma needs clean, dry air at a steady flow. The Razorcut 45 needs 6.7 CFM at 75 psi, the Powermax45 SYNC 4 scfm at 90 psi, and the Powermax65 and 85 SYNC 7.5 scfm at 85 psi. Size your compressor above the cutter's demand.
Water and oil in the air line shorten consumable life and ruin cut quality. Add a filter or dryer between the compressor and the cutter, and drain your tank regularly.
Plasma cutting creates smoke and metal fumes. Cut with the garage door open, add an exhaust fan, and wear eye protection rated for plasma. Never cut galvanized or coated steel without proper fume extraction.
A water tray under the slats catches sparks, cools parts and traps much of the dust. Keep it filled, and add a rust inhibitor so the slats last longer.
Keep the machine on a level concrete floor away from flammable materials, solvents and sawdust. Keep a fire extinguisher within reach.
Spec sheets list dozens of features. These six have the biggest effect on the parts you'll make and the time you'll spend making them.
THC is the single biggest factor in consistent cut quality on real-world, slightly warped sheet. Check whether it's standard or an add-on for the table you're considering.
A stiff frame and gantry keep circles round and edges straight at speed. Light frames flex, which shows up as wobble and rough edges.
Belts are light and fast. Lead screws and ball screws hold position under load and resist stretch. The XR uses ball screws for production accuracy across a 4' x 8' bed.
Some machines charge for control software or licenses. FireControl is free on every CrossFire, and FireShare gives you a library of ready-to-cut designs.
You'll have questions. Look for a company that answers them, publishes assembly guides and troubleshooting, and has an active user community you can learn from.
Consumables wear with every pierce. Buy a table and cutter whose consumables you can reorder quickly, and keep a spare set on hand.
All three cut parts from a drawing. The right one depends on your material, thickness, budget, and the edge finish you need.
The lowest cost way to cut steel, stainless and aluminum from thin gauge up to an inch thick. Best for brackets, signs, fabrication parts, and anything that will be welded or finished.
Finer detail, tighter tolerances, and cleaner edges on thinner metal, with a much higher price. A fit for production shops that sell finished parts.
Built for wood, plastics, and soft metals. A waterjet can machine aluminum, but it isn't an economical way to cut steel plate.
With a ready-made file, you can cut a first part soon after assembly. Here's what that first week usually looks like.
Follow the step-by-step assembly guide and videos for your table. Plan on a day for a benchtop CrossFire; the larger tables take longer.
Install FireControl, load a sample file from FireShare and cut it. Starting with a proven design separates machine setup from design problems.
Run a test card to set cut speed, amperage and pierce height for the thicknesses you use most. Write down what works.
Draw a simple part in CAD, generate a toolpath and cut it. When you get stuck, the Langmuir forum and support team have seen it before.
Answer these before you order and you'll buy the right machine the first time.
List your materials and the thickest piece you cut every week. That sets your plasma cutter and table.
That decides between a 2' x 2', a 2' x 3', a 4' x 3', a 4' x 4', and a 4' x 8' table.
Confirm floor space, a 240V circuit for the cutter if you need one, and a compressor that meets the cutter's air demand.
Add the cutter, shipping, compressor, air treatment and electrical work, not just the table.
Check for assembly guides, free software, support and an active community before you buy.
Spreading the cost can let you buy the table that fits your work now instead of upgrading later.
A CNC plasma table is a computer-controlled machine that moves a plasma torch over sheet metal to cut parts from a digital drawing. It combines a table and gantry, a plasma cutter, torch height control, and software that turns your design into cutting paths.
A complete Langmuir setup starts at about $3,284 for a CrossFire with a Razorcut 45 plasma cutter, before shipping, tax, and shop items like an air compressor. Larger tables and higher-amperage cutters cost more. Use the cost calculator on this page to price your exact setup.
For most small shops, yes, if you cut parts regularly. A table replaces outsourced cutting, shortens lead times and lets you make parts on demand. Enter your monthly outsourcing spend in the calculator above to estimate payback.
Yes. Smaller tables like the CrossFire and CrossFire XL are designed for home garages and run on 120V power. You'll also need a plasma cutter, compressed air, ventilation, and a clear, non-flammable area around the machine.
A plasma cutter with a machine torch, an air compressor that meets the cutter's air demand, an air filter or dryer, CAD/CAM software, safety gear, and possibly a 240V circuit for the cutter.
With a ready-made file from FireShare, you can cut a first part soon after assembly. Designing your own parts takes longer, mostly learning basic CAD. Free software, assembly guides, FireShare designs, and an active forum shorten the learning curve.
Consumable life depends on amperage, material thickness, air quality and how many pierces you make. Dry air, correct pierce height, and torch height control make the biggest difference. Keep a spare set of electrodes and nozzles on hand.
Compare every CrossFire side by side, match a plasma cutter to your work, or ask our team what fits your shop.