Optical Fiber Drawing Tower

Optic Fiber Drawing Tower

This tower is applied to draw fibers from optic preforms.the preform diaemeter is 120-180mm, tower height 30m+, production speed 3000m/min.  Our factory has manufactured more than 20 drawing towers. they have been operating till now and received continuous positive feedbacks. 

1 Technical specifications................................................................... 1

1.1 Fiber specification................................................................... 1

1.2 Preformspecification............................................................... 2

2 Equipment composition.................................................................. 2

2.1 Drawing tower frame............................................................... 2

2.2 Preform feeding system........................................................... 3

2.3 Fiber draw Graphite induction furnace................................... 4

2.4 Temperature keeping furnace.................................................. 7

2.5 Bare fiber diameter measurement, bare fiber tension mea -surement, bare fiber PMD measurement&control........................ 8

2.6 Fiber coating diameter gauge and defect detection................. 8

2.7 Fiber cooling system.............................................................. 11

2.7.1 Cooling pipe................................................................ 11

2.8 Coating system...................................................................... 12

2.9 UV Curing system................................................................. 14

2.10 Capstans............................................................................... 14

2.11 PMD fiber spinning device.................................................. 17

2.12 DDW twin spooler............................................................... 18

2.13 Clean air system.................................................................. 19

2.14 Heating exchange and cooling............................................ 20

2.15 Mass flow controller, gas control........................................ 20

2.15.1 Vacuum Purge System............................................... 20

2.15.2 Gas and Water control cabinet for Induction Furnace......... 20

2.15.3 Mass Flow Controllers for Gas control..................... 21

2.15.4 Logix controller SIEMENS / Equivalent in the Gas and Water cabinet........................................................................ 21

2.15.5 Tubes and Pipes in between the furnace kettle and the gas cabinet and the power cabinet........................................ 21

2.15.6 Dynamic Iris/Sealing system and control.................. 21

2.16 100 grade air purification unit............................................. 22

2.17 Helium recovery system...................................................... 22

2.18 Auxiliary.............................................................................. 24

2.19 Control system..................................................................... 24

2.20 Centralized feeding system................................................. 25

2.21 Equipment information........................................................ 25

2.22 Equipment installation and water, electricity, gas system interface of air supply and exhaust......................... 25

2.23 Utilities and environmental................................................. 25

2.23.1 UTILITIES................................................................ 25

2.23.2 ENVIRONMENTAL REQUIREMENTS................. 25