Accessories for optical fibre manufacturing for all methods

AGI manufactures quartz-based accessories that are useful in fibre optic cable manufacturing. These accessories are made with 100% quartz and their dimensions and tolerances meet the precise requirements of fibre optic cable manufacturing processes.

Extension rod

Extensions rods are normally welded to the tip of the seed rod. AGI extension rods are precisely straight with a defined circumference to achieve precise uniaxial rotation.

  • Max OD: 100 mm
  • Max length: 4200 mm
  • Diameter Tolerance: ± 0.05 mm
  • Rotation Tolerance: ± 0.10 mm

A seed rod is hung by a coupler. Couplers provide a stable connection between the extension rod and the seed rod.

Set-in tolerance with extension rod: ± 0.05 mm

Seed rod

Seed rods are where the soot is deposited from burning raw material gas. Seed rods are manufactured to ensure a precise and easy fit into the coupler.

Max OD: 120 mm
Max length: 3000 mm
Diameter tolerance: ± 0.05 mm
Rotation tolerance: ± 0.10 mm

Muffle tube

For vitrifying a soot preform, an apparatus is required where a sooted seed rod is inserted into a muffle tube and placed in a furnace to enable the vitrification process that produces soot preform. The muffle tubes, main body, and flange are accurately perpendicular to facilitate the perfect fibre draw.

Max OD: 350 mm
Max length: 3500 mm
Rotation Tolerance: ± 1.0 mm