Max-45AL Low-Frequency Air Plasma Cutter

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Max-45AL Low-Frequency Air Plasma Cutter

Non-HF Plasma Cutting Machine

The Max-45AL is a non-high-frequency (low-frequency arc starting) air plasma cutting machine. It is not limited to manual cutting: it is equally suited to CNC cutting tables and robotic cutting cells, and it provides both digital communication and analogue interfaces to satisfy the communication requirements of most automation equipment. Industrial-grade duty cycle of 40% at 1-phase 110 V / 220 V, 50-60 Hz. The non-high-frequency arc ignition technology, combined with a low-frequency torch, provides excellent resistance to power interference and produces a more concentrated arc start. It keeps every cut consistent over long shifts and avoids unnecessary sheet loss. Exceptional durability comes from the dual IGBT module design. Unlike conventional single-tube IGBTs, IGBT module packaging raises the stability and service life of the plasma power source to a new level. The unit communicates with the CNC system in real time and controls cut quality precisely through its process database: it raises current during piercing to boost piercing capability, and it intelligently manages corner current to improve corner quality and prevent overburning. The Max-45AL adapts to workshop, site and garage work alike. Its pierce-cut mode supports both handheld and machine cutting, and it accepts 220 V single-phase as well as 220 V / 380 V three-phase supply, with no derating of the duty cycle across voltages. Applications Used for cutting carbon steel, alloy steel and non-ferrous metals. Widely applied in industrial power-plant installation, boilers and pressure vessels, shipbuilding, metallurgy, petrochemicals, aerospace, construction machinery and steel-structure fabrication, and in any industry involving metal cutting and gouging.

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Key Features

Low-frequency (non-HF) arc starting with very low electromagnetic interference; connects directly to CNC tables and robot cells
Fine plasma arc column: narrow kerf, small bevel angle and a thin heat-affected zone, visibly less distortion on thin sheet
High-precision torch concentricity and swirl gas path for consistent cut faces
Supports arc-voltage height control and torch lift bodies for automated cutting
Real-time communication with the CNC system; pierce current boost and intelligent corner-current control
Dual IGBT module packaging for higher stability and longer service life
Complete gas-pressure detection plus over-temperature and phase-loss protection
40% duty cycle on 110 V / 220 V single-phase, no derating on 220 V / 380 V three-phase
45 A fine arc for thin sheet with almost no distortion

Typical Applications

Thin-sheet fabrication and precision part cutting
Kitchenware, household metal products and decorative components
Electrical enclosures, cabinets and electronics housings
Signage, advertising letters and artistic metalwork
Robotic and CNC cells where HF interference must be avoided

Selection & Setup Notes

45 A is the thin-sheet class of fine plasma: within the precision plasma range it is the model best suited to plate below 6 mm and to visible-surface parts, producing a kerf that approaches laser quality. If thin sheet is only a small part of your work and you cut mostly medium plate, consider the Max-105AL. The boundaries between the three processes are explained in plasma vs laser vs flame cutting.

Standards & Further Reading

External reference: ISO 9013 — Thermal cutting classification — ISO 9013 defines the quality classes for thermal cut surfaces (perpendicularity, bevel, dross).

Frequently Asked Questions

Does precision plasma need better air?

Yes. Fine nozzles clog with oil and water and the arc wanders. Use a refrigerated dryer plus three-stage filtration and verify to ISO 8573.

Do I still need clamping fixtures for thin sheet?

Usually not specifically for flatness — heat input is low and distortion light. But secure the part so it cannot drop or lift into the torch at pierce.