Ericsson EFC11-4 Fiber Cleaver

The Ericsson EFC11-4 Fiber Cleaver is a precision ultrasonic cleaving instrument engineered to produce mirror-quality fiber ends for fusion splicing applications. A diamond blade mounted to a resonant acoustic-stepped horn vibrates at ultrasonic frequencies, controlled by an integrated electronic circuit. This approach allows the blade to advance slowly toward tensioned fiber on low-friction bearings, eliminating compressive stress and blade intrusion.

The result is consistently planar fiber ends with end-angle accuracy better than 1° - critical for low-loss splices across single-mode and multi-mode fiber types.

Technical Specifications

• Cleaving Technology: Ultrasonic vibration with precision diamond blade and resonant acoustic-stepped horn


• Fiber Compatibility: Single-mode and multi-mode optical fiber


• Fiber Diameter Range: 80–200 µm


• Maximum Buffer Diameter: 900 µm


• Cleave Length: 6–18 mm


• End Angle Accuracy: <1° typical; 20,000 cleaves


• Battery: One 9 V alkaline (MN 1604 recommended)


• Battery Life: ~10,000 cleaves


• Dimensions: 150 × 150 × 68 mm


• Weight: 1.2 kg

Key Features

• Electronically tuned ultrasonic action eliminates compressive stresses and blade intrusion


• Adjustable diamond blade extends service life by rotating to fresh cutting edges


• Low-torsion clamps secure fiber without damage


• Constant axial tension applied via lever mechanism prior to cleaving


• Straightforward operation in laboratory and field environments


• Maintenance via alcohol cleaning only; avoid acetone and corrosive fluxes

Typical Applications Telecommunications infrastructure, data center fiber termination, fiber optic research, and field splicing requiring precision end preparation and minimal signal loss.

Compatibility & Integration Works with standard single-mode and multi-mode fiber. Powered by common 9 V alkaline batteries for portable deployment.