Premium 101.6mm (4") CO2 Laser Focus Lens & 25mm Mirror Set
Refresh your CO2 laser machine's optical system with this Premium 101.6mm (4-inch) Focus Lens and Mirror Bundle. This package combines one 20mm diameter ZnSe focusing lens with three 25mm gold-coated silicon mirrors, providing replacement optics for compatible CO2 laser engraving and cutting machines.
The 4-inch focal length provides greater depth of focus and additional working clearance compared with shorter lenses, making it useful for thicker materials and applications involving variations in material height. The gold-coated mirrors redirect the CO2 laser beam through the machine's optical path toward the focusing lens.
What's Included
- 1 Premium CO2 Focus Lens: 101.6mm (4-inch) focal length, 20mm diameter.
- 3 Premium CO2 Laser Mirrors: 25mm diameter, gold-coated silicon mirrors.
This bundle supplies the focusing lens and three reflective mirrors commonly used in a three-mirror CO2 laser beam delivery system. Check your machine's optical specifications before ordering.
Key Features
- Complete Optical Replacement Set: Includes one focusing lens and three reflective mirrors for compatible CO2 laser machines.
- 4-Inch Focal Length: Provides greater depth of focus for thicker materials and applications requiring additional working clearance.
- Zinc Selenide Focus Lens: Infrared optical material used to transmit and focus CO2 laser radiation.
- Gold-Coated Silicon Mirrors: Reflect the CO2 laser beam through the machine's optical path.
- Convenient Bundle: Purchase the focusing lens and three mirrors together rather than ordering the components individually.
- Replacement Optics: Suitable for maintenance and replacement of worn, contaminated, or damaged optical components in compatible systems.
Technical Specifications
| Lens Focal Length | 101.6mm (4 inches) |
| Lens Diameter | 20mm |
| Lens Material | ZnSe (Zinc Selenide) |
| Lens Shape | Plano-Convex |
| Mirror Diameter | 25mm |
| Mirror Substrate | Silicon |
| Mirror Coating | Gold |
| Operating Wavelength | 10.6µm CO2 |
| Quantity | 1 Lens + 3 Mirrors |
Compatibility
This bundle is intended for compatible CO2 laser engraving and cutting machines that use a 20mm diameter focusing lens and 25mm reflective mirrors.
Before ordering, verify the diameter and focal length of your existing lens, the diameter of your mirrors, and the available adjustment range of your focal tube. A 4-inch lens may require a different focal tube or nozzle configuration to maintain proper focus and air assist positioning.
These components may also be suitable for other brands of CO2 laser machines with matching optical specifications. Compatibility should be confirmed before installation.
Handling & Maintenance
Handle the lens and mirrors by their edges using appropriate protective gloves. Avoid touching the optical surfaces, and inspect regularly for residue, scratches, or damage. Clean only with procedures and products approved for the specific optical materials and coatings.
Always power down the laser machine before servicing optical components. Follow the manufacturer's procedures for mirror alignment and focusing before returning the machine to operation. Do not use damaged or cracked optics.
Rabbit Laser USA can help you identify compatible replacement lenses and mirrors for your CO2 laser machine.
Phone: 513-217-5707
Email: support@RabbitLaserUSA.com

