Dual Source Laser Engravers

A dual source laser engraver is a single machine that houses two laser types — typically a fiber laser and a diode laser — so it can process both metal and non-metal materials without a machine swap. You switch between the two beams from the software or touchscreen, not by opening the case, so a project that moves from a stainless steel tag to a wood keychain stays on one machine. This is different from single-source engravers, which are built around one wavelength and one material category.

The fiber laser (usually 1064nm) is built for metal — stainless steel, aluminum, brass, silver, and titanium — producing high-contrast marks and, on higher-wattage models, clean metal cutting up to about 2mm. The diode laser (usually 450nm blue) handles wood, leather, acrylic, glass, and rubber, and can cut basswood up to roughly 20mm on the stronger configurations. Each laser is matched to a different material category, not a different power level, so picking wattage and picking a laser type are two separate decisions.

If your work only ever touches one material family — only metal, or only wood and acrylic — a single-source machine will usually cost less for the same wattage. A dual source laser engraver earns its price when your orders mix categories: jewelry engraving alongside leather packaging, or metal name tags next to acrylic awards. The real savings is shop space and setup time, not per-project cost, since you run one machine instead of maintaining two separate laser systems side by side.

For light engraving and marking on both metal and non-metals, 20W fiber paired with 20W diode is enough for most hobbyist and small-business work. If you're cutting metal (not just marking it) or cutting thicker wood and acrylic regularly, step up to 30–60W fiber (including MOPA options for color marking) paired with 30–40W diode. Higher wattage buys you cutting depth and speed, not just darker marks, so match it to whether you plan to cut or only engrave.

Most dual source machines can cut thin metal, but the depth depends on fiber wattage: 20W fiber lasers typically cut around 1mm of brass, stainless steel, or aluminum, while 50–60W MOPA fiber lasers on machines like the Gweike G3 push closer to 1.5–2mm. Metal cutting is limited to thin sheet, not structural stock, so for anything thicker, plan to mark or engrave with the fiber laser and cut the non-metal parts of the project with the diode side instead.