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Cutting Machines

Fiber laser, plasma, waterjet, and oxy-fuel cutting — process selection, power sizing, assist gas guides, and cut quality optimisation for job shops and fabricators.

Choosing a Cutting Process

The four main thermal and abrasive cutting processes each occupy a different speed/quality/cost space. Fiber laser dominates thin-to-medium steel and stainless up to ~25 mm, with cut quality approaching wire EDM. Plasma handles heavy carbon steel to 80 mm at lower capital cost. Waterjet cuts virtually any material — glass, titanium, composites — without heat-affected zone. Oxy-fuel remains the lowest-cost option for structural carbon steel over 25 mm.

Choosing wrong costs money in two directions: over-specifying (a 15 kW laser where 6 kW would suffice) wastes capital and energy; under-specifying means your machine becomes the bottleneck and you cut slower than a plasma table would have.

Cutting Machine Guides

Process Comparison: Quick Reference

ProcessTypical Speed (6mm MS)Kerf WidthHAZMax ThicknessCapital Cost
Fiber Laser (6 kW)6,500 mm/min0.2–0.4 mmMinimal~25 mm (MS)$$$
Plasma (HD)2,500 mm/min1.5–3.5 mmModerate80 mm (MS)$$
Waterjet200–800 mm/min0.8–1.2 mmNone200+ mm$$$
Oxy-Fuel300–600 mm/min1.5–5 mmHigh300 mm (MS)$

MS = mild steel. Speeds vary with machine configuration and material grade. Capital cost: $ <$50k, $$ $50k–$200k, $$$ >$200k.

Featured Cutting Machines

Representative machines across cutting technologies. Specifications are indicative; verify with manufacturers before purchasing.

Bystronic

ByStar Fiber 3015

Fiber Laser — 6 kW

  • Sheet format: 3,000 × 1,500 mm
  • Power: 6 kW (10 kW option)
  • Max steel: 25 mm MS, 15 mm SS
  • Rapid: 140 m/min
Trumpf

TruLaser 5030

Fiber Laser — 6–15 kW

  • Sheet format: 3,000 × 1,500 mm
  • Power: 6, 10, or 15 kW
  • BrightLine Fiber optics
  • Automated nozzle change
Mazak

Optiplex 3015 Fiber II

Fiber Laser — 4–9 kW

  • Sheet format: 3,048 × 1,524 mm
  • Power: 4, 6, or 9 kW
  • Max steel: 22 mm (6 kW)
  • MAZATROL SmoothCut control
Hypertherm

Powermax 105

Plasma Cutter (Hand/Machine)

  • Output: 105 A, 400/480 V
  • Rated cut: 32 mm (1.25 in) steel
  • Severance cut: 50 mm (2 in)
  • Torch: machine-mount compatible
OMAX

55100

Abrasive Waterjet

  • Cutting area: 1,524 × 2,591 mm
  • Pump: 30–100 HP (EnduroMAX)
  • Max material: virtually unlimited
  • No HAZ; cuts composites, glass
Lincoln Electric

Torchmate 4400

CNC Plasma Table

  • Cutting area: 1,219 × 1,219 mm
  • Compatible: Hypertherm Powermax series
  • Steel capacity: up to 25 mm
  • Entry-level production plasma

Related Topics

Sheet Metal & Press Brakes Inspection & Metrology