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A3Mi50i Pro Max

The HRLASER A3Mi50i Pro Max is built to solve three problems that limit handheld laser welding on medium-to-thick plate: insufficient penetration, narrow or inconsistent weld seams, and heavy spatter when welding hot-dip galvanized sheet. Its patented web structure with planar universal galvo dual-axis oscillation and an integrated telecentric optical path deliver up to 6.0 mm penetration in the upgraded D mode — 30% deeper welds at up to 22% higher welding speed. A 380 g ultra-light torch with in-torch focus adjustment, a seven-position rotating protective lens with temperature alarm, and a 1,500+ preset process library make setup faster and keep the optics protected. Shielding gas consumption drops from 15 L/min to 8 L/min, while stacked-tooth heat dissipation, low-noise fans, and dual-drive stepper wire feeding with 100% automatic wire cutting keep production stable on stainless steel, carbon steel, galvanized steel, aluminum, brass and copper.

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Exclusive Patented Web Structure

Planar Universal Galvo with Dual-Axis Oscillation

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X-Y Axis Bidirectional Oscillation

Supports circular, diamond and figure-eight oscillation patterns

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Reinforcement Rib Welding

Meets the load-bearing and safety requirements of structural parts

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New Energy Battery Welding

Reduces the heat-affected zone and prevents cell burn-through

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Deeper Penetration, Wider Welds

Handle Advanced Welding Applications with Ease

Eliminates insufficient penetration and lack of fusion on thick plates. In the upgraded D mode, penetration increases substantially, up to 6.0 mm. Built for deep penetration, wide weld seams and wide fillet welds, especially applications requiring build-up and high-speed welding.
30% deeper penetration  |  22% higher maximum welding speed  |  Lower energy consumption (higher electro-optical conversion efficiency).

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Ultra-Lightweight 380g Welding Torch

Less Effort, Greater Drop Resistance, Easier to Use

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6–15× Improved Drop Resistance

Proprietary web structure with a re-engineered lever arm

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Proprietary Handle-Button Focus Adjustment

Adjust focus inside the torch without changing copper nozzles

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More Convenient On-Torch Interaction

Multiple integrated high-frequency buttons on the torch, no need to walk back to the machine

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Proprietary Integrated Telecentric Optical Path

Breaking Industry Barriers to Overcome Hot-Dip Galvanized Steel Welding

For hot-dip galvanized sheet with a 50–150 μm zinc coating, this design solves the industry problems of weld spatter explosion, heavy spatter and lens burn-through. A reconstructed optical path and dual protective-lens shielding deliver the highest level of lens protection.

• Eliminates the focusing lens at the torch head
• Seven-position rotating protective lens + fixed protective lens: dual protection structure
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Proprietary Seven-Position Rotating Protective Lens

One Lens, Up to Seven Uses

Temperature Monitoring & Alarm — shifting from passive replacement to proactive alerts, so the lens is changed before damage occurs.
Triple-Layer Physical Spatter Shielding — a small-diameter nozzle blocks spatter at the source, with two internal spatter-blocking rings.

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Proprietary Gas-Saving Brightening Technology

Gas Consumption Reduced from 15 L/min to 8 L/min

An industry-leading energy-saving configuration cuts shielding gas consumption by nearly half. Combined with an ultra-long-life protective lens and a low-loss machine design, it substantially reduces electricity and consumable costs for a clear cost advantage.

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1,500+ Welding Process Presets

Easily Select the Optimal Mode

Material thickness selection refined from 1 mm to 0.1 mm for more precise process matching. The built-in library has grown from 538 parameter sets to more than 1,500 process presets, significantly improving welding accuracy and ensuring every weld meets the optimal standard.
* The exact process library depends on the model; refer to the actual product.

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Enhanced Cooling, Reduced Noise

Validated in the Industry's Only Laser Welding Noise Test Laboratory

Refined through thousands of design iterations. A stacked-tooth heat dissipation structure with thinner, lighter teeth channels heat directly from the source to the aluminium fins; 6–8 high-performance 92 × 38 mm low-noise fans and a high-performance copper tube array provide efficient heat conduction and dissipation.

-20°C – 45°C Operating Temperature
75 dB Noise Level
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Dual-Drive Stepper Wire Feeding

100% Automatic Wire Cutting

Supports dual-wire feeding by default and remains compatible with single-wire feeding. An all-new dual-drive stepper motor delivers stronger wire feeding with 100% automatic wire cutting. The fully enclosed design protects the internal wire-feeding mechanism for greater safety and reliability, while the spool and feed assembly share a common centreline to reduce friction and keep feeding smooth.
Proprietary 4-in-1 feed wheel covers 0.8 / 1.0 / 1.2 / 1.6 mm wire, eliminating wheel changes and downtime; the 4-in-1 variable-diameter nozzle switches between four wire sizes by rotation with a fixed feed angle.
* The 4-in-1 feed wheel is an optional accessory.

Product Specifications

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Model : A3Mi50i Pro Max
Weight : 43 kg
Volume : 0.1 m³
Dimensions (W×D×H) : 690*311*502mm
Torch Weight : 380 g
Operating Modes : Continuous Wave (CW), Spot Welding, Pulsed, Cutting
Dual-Axis Oscillation : Supported
Wire Feeding : Single Wire
Gas Consumption : 8 L/min
Protective Lens : Seven-Position Rotating Protective Lens
In-Torch Focus Adjustment : Supported via Torch-Handle Buttons
Operation Method : 7-inch Capacitive Touch Screen + APP
Input Voltage : AC 220V
Cooling Method : Air-Cooled Phase Change

Penetration (mm)

Stainless Steel
5.5
Carbon Steel / Iron
5.5
Galvanized Steel
5.5
Aluminum
4.0
Brass
3.5
Copper
2.5
* Test data from HRLASER laboratory. Actual welding thickness is subject to material quality, welding speed, welding mode and ambient temperature.

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