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NYFORS AutoCleaver LDA

The AutoCleaver LDA™ is an automatic system for precision cleaving of circular large diameter fibers (LDF). It is a special version of NYFORS' well known large diameter cleaver and is designed for both perpendicular and angled cleaving of fibers ranging from 230 up to more than 800 µm in diameter.

The cleave angle is set using a micrometer screw positioner allowing the operator to quickly adjust the cleaver for different cleave angles. The patent pending cleaving process produces consistent high quality cleaving results with <0.5 degree precision. When using the system for non-perpendicular cleaving, variable cleave angles from 0 to < 9 degrees (for 250 µm cladded fibers) and up to more than 15 degrees (for fiber diameters above 450-500 µm) can be created with the same degree of repeatability and accuracy.

The v-groove clamp block and the fiber height adjuster are selected to match the diameter of the fiber cladding. The v-groove clamp block and the height adjuster work together as a fiber handling kit to ensure optimum cleaving performance for a particular fiber range. These parts have to be be selected from the Selection Guide Matrix when you purchase the cleaver. The parts are easily exchanged by the operator to set the cleaver up for a different fiber size.

The built-in microprocessor controls all parameters and settings, such as clamping, tension and the exact position and speed of the diamond blade. This control of sensitive parameters guarantees a high cleaving repeatability and accuracy.

The cleaver is designed to generate a minimum amount of fiber waste, typically less than 20 mm. An automatic waste disposal system removes any hazardous fiber scraps. The cleaver can be connected to a PC that gives access to all programmable parameters and settings.

The AutoCleaver LDA™ comes in a small bench top design.


Short facts

  • Variable angle cleaving, 0 to >15 degrees
  • Semi automatic
  • Easy handling
  • Operator independent
  • Designed for production and laboratory environments
  • Automatic fiber waste collection
  • Long-lasting diamond life
  • PC controllable


Cladding diameter 230-800+ μm
Coating diameter 250-1000 μm
Cleave angle 0 to >15 degrees
Fiber waste length Typical < 20mm, automatic disposal
Power supply External 12 V DC, 15 W
Compressed air supply External compressor, 6-8 bar, 4 mm instant push-in fitting
PC Interface RS-232
Dimensions 175 mm (W) x 138 mm (D) x 104 mm (H)
Weight 2.5 kg