Quoting Laser Cutting Jobs Accurately

Laser cutting looks straightforward on paper: flat material, 2D geometry, fast cycle times. But shops that quote by rough perimeter length or flat hourly rates regularly leave money on the table — or lose jobs to competitors who priced tighter. The difference comes down to capturing the real cost drivers: pierce time, assist gas consumption, nesting efficiency, and material utilization.

Start With Pierce Count, Not Just Cut Length

Every hole, internal feature, and separate contour requires a pierce. On thick material, a single pierce can take 2–5 seconds. On a nest with 200 parts, that adds up to minutes of non-cutting machine time. Most quoting spreadsheets ignore this entirely.

Count pierces per part, multiply by your machine’s pierce time at that thickness, and add it to the cycle time. If you run multiple laser sources (fiber vs CO₂), keep separate pierce-time tables — they differ significantly.

Model Assist Gas Consumption by Material and Thickness

Nitrogen, oxygen, and compressed air each carry different costs and flow rates. Nitrogen for stainless steel at 6 mm might consume 20–30 L/min at 15–20 bar; oxygen for mild steel uses less volume but higher pressure. Gas cost per hour of cutting can exceed electricity on some jobs.

Build a lookup table: material type × thickness × gas type → flow rate and cost per hour. Multiply by estimated cut time (including pierce dwell) to get gas cost per nest. Don’t forget assist gas for piercing — it often runs at higher pressure than cutting.

Account for Nesting Yield and Skeleton Waste

Rectangular sheet utilization rarely hits 90% on complex parts. Irregular shapes, minimum web widths, and clamp zones eat material. If you quote based on gross sheet size, you absorb the waste. If you quote based on net part area, you risk underpricing when nesting efficiency drops.

Run a test nest in your CAM software for new geometries. Capture actual yield percentage. Use that yield factor to adjust material cost: material cost = (total part area / nest yield) × sheet cost per unit area. Track yield by part family over time to refine estimates.

Include Machine-Specific Overhead Per Hour

Fiber lasers depreciate differently than CO₂. Maintenance contracts, nozzle and lens replacement, chiller electricity, and filter changes vary by machine age and power. Calculate a true machine hour rate that includes:

• Depreciation or lease payment
• Scheduled maintenance (preventive + consumables)
• Unscheduled repair budget (historical average)
• Utilities (laser source, chiller, dust collection, assist gas generation)
• Operator allocation (if not fully automated)

Update this rate quarterly. A 6 kW fiber laser’s hour rate differs from a 12 kW by more than just power draw — higher power often means faster cuts but costlier consumables.

Factor Post-Cut Handling Per Part

Micro-joint removal, deburring, part sorting, and inspection scale with part count, not cut length. A nest of 500 small brackets takes far more handling time than 10 large panels with the same total cut distance.

Establish a per-part handling adder based on geometry: simple rectangles vs complex profiles, burr-sensitive edges, stacking requirements. Add this as a line item so customers see it — and you recover it.

Build a Repeatable Quote Template

Combine the above into a structured calculator: material cost (with yield factor) + cut time (pierce-adjusted) × machine hour rate + gas cost + handling adder + setup/programming amortization. Save templates by material family (mild steel, stainless, aluminum, specialty).

When a new RFQ arrives, import the DXF/DWG, run a quick nest for yield, count pierces, select the template, and generate a quote in minutes. Solvi automates this workflow — pulling geometry, calculating pierce counts, applying your machine rates, and producing a consistent quote without spreadsheet juggling.

Track Actuals to Close the Loop

After each job, compare quoted vs actual: material used, cut time, gas consumed, handling hours. Feed variances back into your templates. Shops that close this loop typically shrink quote-to-actual variance from ±25% to under ±8% within two quarters.

Accurate laser quoting isn’t about a single magic formula — it’s about capturing every cost driver systematically and refining from real data. Start with pierce counts and gas tables this week; add nesting yield tracking next. Your margins will reflect the difference.