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FiberMid Range
Amada LCG AJ 4020
4kW Fiber cutting Machine
Power
4 kW
Work Area
4000×2000mm
Max Steel
19mm
Accuracy
±0.03mm
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How It Compares
Compared against 748 machines in this category
Power Output▼ 61%
4kW
0Avg: 10.20 kW
Work Area▲ 9%
8m²
0Avg: 7.35 m²
Max Steel Cutting▼ 31%
19mm
0Avg: 27.55 mm
Positioning Accuracy▲ 4%
±0.03mm
0Avg: 0.03 mm
Quick Facts: Amada LCG AJ 4020
Laser Power & Type4kW Fiber
Work Area4000 × 2000 mm
Estimated Price Range$110000-140000
Primary Applicationcutting
Large format fiber laser for versatile applications
Large panelsStructural steelCustom fabrication
📝 Editor's Review
Proprietary internal fiber laser engine perfectly synced with a high-speed helical rack motion system
Amada's LCG 4020 AJ utilizes their internally developed fiber laser engine, providing unmatched stability and up to 70% less energy consumption than CO2 counterparts. The AMNC 3i touchscreen control simplifies operations, and its seamless air-cutting mode (using compressed air) dramatically reduces production costs for thin-to-medium materials.
Best For: Premium job shops wanting the lowest cost-per-part through extreme energy efficiency and air-cutting capabilities
Value
8/10
Reliability
10/10
Service
9/10
Market Position
Power vs. work area compared to 51 machines in this category
This machine
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Full Specifications
Laser System
| Brand | Amada |
| Model | LCG AJ 4020 |
| Laser Type | Fiber |
| Power Output | 4 kW |
| Wavelength | 1070 nm |
| Beam Quality (M²) | 1.8 |
Work Envelope
| Work Area (L × W) | 4000 × 2000 mm |
| Positioning Accuracy | ±0.03 mm |
| Repeatability | ±0.02 mm |
Machine Specifications
| Dimensions (L × W × H) | 8200 × 3100 × 2400 mm |
| Weight | 6200 kg |
| Control System | Amada AMNC |
| Cooling Type | Water |
| Power Consumption | 44 kW |
Commercial Information
| Price Range | $110,000 - $140,000 |
Material Coverage
Maximum cutting thickness across materials
Steel19 mm
Stainless15 mm
Aluminum12 mm
Cutting Capabilities
Maximum material thickness and cutting speeds for the Amada LCG AJ 4020
| Material | Max Thickness | Speed @5mm | Speed @10mm |
|---|---|---|---|
| Mild Steel | 19mm | 13m/min | 3.5m/min |
| Stainless Steel | 15mm | 8m/min | 3m/min |
| Aluminum | 12mm | 10m/min | 3m/min |
19
Mild Steel
mm max
15
Stainless Steel
mm max
12
Aluminum
mm max
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Procurement Decision Notes
Use this block to qualify price, fit, operating requirements, and shortlist alternatives before requesting quotes.
Price & Budget Fit
Listed range$110000-140000
Power tierMid range
OriginNot published
Confirm freight, installation, training, chiller, fume extraction, assist gas setup, and spare lens/nozzle starter kits before comparing final supplier quotes.
Best-Fit Buyer Profile
Premium job shops wanting the lowest cost-per-part through extreme energy efficiency and air-cutting capabilities
Application: cuttingLaser: FiberAutomation: semi-autoControl: Amada AMNC
Maintenance & Consumables
Plan preventive service roughly every 5,000 operating hours.
- - Protective windows, nozzles, lenses, filters, and slats should be quoted as annual consumables.
- - Assist gas options listed: ["N2","O2","Air"]. Confirm nitrogen, oxygen, or air supply cost for your material mix.
Facility Readiness
- Power: 44kW machine load plus auxiliaries
- Cooling: Water cooling
- Extraction: dust/fume extraction required
- Noise: 78 dB operating level
US Buyer Compliance
- Electrical: confirm 480V or 208V three-phase compatibility, transformer needs, and NEMA enclosure rating.
- Safety: verify Class 4 laser controls, OSHA lockout/tagout procedures, ANSI Z136.1 program ownership, and interlocked enclosure options.
- Certification: request UL/ETL-listed electrical panels or field evaluation path before purchase approval.
- Support: confirm US spare parts stock, technician coverage, remote diagnostics, and warranty labor terms.
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More from Amada
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Viewing
LCG AJ 4020
4kW
4000×2000mm
Steel: 19mm max
Frequently Asked Questions
Common questions about the Amada LCG AJ 4020
The Amada LCG AJ 4020 features a 4kW fiber laser, suitable for metal cutting and sheet processing.
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Next Decision Steps
Keep model-specific price queries on the model page, then use the workflow links to validate power, speed, time, gas use, and cost.
Model price authorityAmada LCG AJ 4020 Price & Specs
Model-specific price range, specifications, alternatives, and inquiry path.
→Power Calculator
Start with material, thickness, quality target, and required cutting speed.
→Cutting Speed ChartValidate the speed assumption against material, thickness, and power data.
→Cutting Time CalculatorConvert speed into beam-on time, pierce time, rapid moves, and capacity.
→Gas Flow CalculatorEstimate gas consumption and cylinder or bulk supply demand.
→Cost EstimatorCombine cycle time, gas, electricity, consumables, material, and labor.