The MRJ-FL-3D20A is a dynamic-focus fiber laser marker (20W) capable of marking on curved or irregular surfaces—including spheres, steps, and contours. The focal length is adjustable via a focusing axis, enabling both surface marking and deeper engraving. It includes MM3D software from Eastern Logic Inc for precise marking workflows, supports multiple file formats (e.g. PLT, DXF, DWG, BMP, JPG, PNG), and is powered by a single-phase 110/220 V supply with air cooling. Ideal for jewellery, small components, and other items requiring high detail 3D marking. ([turn0search2]

MRJ-FL-3D 20W Mini 3D Portable Fiber Laser Marking Machine

Need a laser marker that handles tricky surfaces without fuss? The 20W Mini 3D Portable from MRJ lets you mark curved, stepped, or spherical shapes with dynamic focus, so every curve gets crisp detail. With portable size, flexible input files, and software made for 3D precision, it’s great for decorative engraving, jewelry, small parts, or anything where shapes aren’t flat.

Features

Dynamic Focus (3D Marking)

The machine allows the laser focal length to be changed along a focusing axis, enabling it to mark on curved, spherical, stepped, or irregular surfaces, not just flat ones.

20W Fiber Laser Output, 1064 nm Wavelength

Provides good power for deep engraving and strong contrast on metals like gold/silver or treated surfaces. 1064 nm is standard for fiber laser applications on metals.

High Marking Speed & Fine Detail

Capable of line widths down to ~30 µm (micrometres) and marking speed up to ~6000 mm/s. Useful for fine detail work and reducing production time.

Supports Variety of File Types & Codes

Accepts input formats like PLT, DXF, DWG, BMP, JPG, PNG etc; supports 1D and 2D barcodes, STL for 3D models; suitable for decorative or traceability marking.

Portable & User-friendly Software

The “mini portable” design makes it easier to move / set up; includes MM3D control software from Eastern Logic Inc for dynamic focus control, enabling high precision, especially on non-flat surface objects.

Overview

Specification	Detail (MRJ-FL-3D20A)
Model	MRJ-FL-3D20A (20W Dynamic Focus Fiber Laser Marker)
Laser Output Power	20 W
Wavelength	1064 nm
Frequency (Repetition Rate)	20 kHz – 80 kHz
Marking Field / Work Area	≤ 300 × 300 mm
Minimum Line Width	30 µm
Marking Speed	≤ 6000 mm/s
File Formats Supported	PLT, DXF, DWG, BMP, JPG, PNG, etc
1D Barcodes Supported	CODE39, CODE128, ITF, EAN, UPC, etc.
2D Codes Supported	DataMatrix (ECC200), PDF417, etc
3D Model Format Supported	STL
Input Voltage	Single-phase 110/220 V, 50-60 Hz
Power Consumption	≤ 600 W
Cooling Method	Air cooling
Control Interface	USB 2.0