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Key Factors in Laser Cutting Cost
In metal processing, laser cutting has become one of the most commonly used material-cutting methods due to its high precision, high speed, and strong flexibility.
However, many customers often feel confused when making inquiries: Why can the quotations from different manufacturers differ by a factor of two for the same thickness and similar shape? Why does my simple-looking part have a high quotation?
This article will break down the cost of laser cutting into 8 core factors, so you will have a clear idea when preparing the next quotation.
Eight Core Factors
1.Material type and grade
The absorption rate, thermal conductivity, and reflectivity of different materials to laser light vary widely, which directly affects cutting speed and cost.
| Material Type | Cutting Difficulty | Relative Cost | Notes |
|---|---|---|---|
| Mild Steel | Easy | Low | Fast cutting, oxygen or air |
| Stainless Steel (304/316) | Medium | Medium | Needs nitrogen or high-pressure air, slower |
| Aluminum Alloy | Medium-High | Medium-High | High reflectivity, anti-reflection protection needed |
| Copper / Brass | Difficult | High | Extremely reflective, requires special setup |
💡 Different grades also affect the cost. For instance, 316L stainless steel has a cutting speed about 20% slower than 304, and thus costs more.
2.Material Thickness
Thickness is the most obvious factor affecting the cutting cost. For every 1mm increase in thickness, the cutting speed decreases exponentially.
– 1mm carbon steel: Can be cut at high speed (e.g., 10 meters per minute), with extremely low cost
– 10mm carbon steel: The speed drops below 1 meter per minute, and the cost is 5-8 times that of the former.
Thick plates require even more powerful lasers. For instance, cutting a 10mm stainless steel requires at least 3-4kW, while a 1mm plate can be cut with 1kW. The purchase cost of high-power equipment is high, and the hourly rate is correspondingly higher.
3.The Complexity of the Part
4.Type of Auxiliary Gas
During laser cutting, an auxiliary gas is needed to blow away the molten slag. The type of gas has a significant impact on the cost.
| Gas Type | Cut Edge Quality | Cost Level | Applicable Materials |
|---|---|---|---|
| Air | Fair, slight oxidation | Low | Mild steel, stainless steel (non-precision) |
| Oxygen | Bright, no oxidation | Medium | Mild steel |
| Nitrogen | Very bright, no oxidation | High | Stainless steel, aluminum alloy |
When cutting 10mm-thick stainless steel, the single-piece cost with nitrogen gas may be 3 to 4 times that with air. If further grinding or painting is required later, it is not necessary to use the nitrogen-cut surface.
5.Equipment Power
6.Programming and Typesetting Time
For simple shapes (rectangles, circles), programming can be completed instantly with negligible costs. However, for complex graphics, a large number of irregular parts, or orders requiring automatic layout optimization, the programming process takes longer.
– Programming time includes: importing drawings, optimizing paths, setting parameters, and layout design.
– Experienced programmers have relatively high hourly wages, and this cost will be allocated to the orders.
– Orders with small quantities and multiple varieties are particularly affected because programming needs to be redone each time.
7.Batch Size
The impact of batch production on unit costs is significant. For the same part:
| Batch Size | Cost per Part | Reason |
|---|---|---|
| 10 pcs | High | Loading/unloading, programming, first article inspection time all borne by 1 piece |
| 100 pcs | Medium | Setup time spread across 100 pieces |
| 1000 pcs | Low | Continuous cutting, highest efficiency |
| 10000 pcs | Very low | Batch nesting possible, material utilization >90% |
💡 If you have multiple different parts, ordering them together can also reduce the overall cost. One operation can cut multiple parts.
8.Subsequent Processing Requirements
The parts after laser cutting may still require additional processing, and all these will increase the cost:
– Deburring: There might be a few burrs at the edges of the thin plate, which need to be polished.
– Straightening: Heat-affected zones may cause slight deformation of the thin plate.
– Tempering: Eliminate the stress in the heat-affected area (for very few high-quality parts).
– Secondary processing: The cut parts may require bending, welding, surface treatment, etc.
We offer a one-stop processing service, which eliminates the need for intermediate logistics and redundant quality inspections. As a result, the overall cost is even lower.
Our Service Advantages
As your reliable long-term partner, we have established the following core advantages:
✅ 0.01mm precision guarantee
✅ Quotation within the shortest 24 hours
✅ Business team provides continuous follow-up
✅ Samples can be obtained within 72 hours
✅ Free project optimization service
✅ Batch inspection service
