The AFSJ30 + SJ20 Two-Out Optical Fiber Co-Extrusion Line is specially designed for manufacturing PMMA optical fibers with a fluoropolymer outer layer. Featuring a dual-extruder configuration, the production line integrates a 30mm PMMA extruder and a 20mm fluoropolymer extruder to achieve precision co-extrusion and produce two optical fibers simultaneously.
The line is designed to produce optical fibers with diameters of 0.75mm, 1.0mm and 2.0mm, with a target capability of accommodating 3.0mm fiber specifications. It offers a production line speed of 60–100 m/min, with 90 m/min as the target qualified operating speed, and an extrusion output of approximately 10–12 kg/h.
With a precision co-extrusion die made of Hastelloy C-276, the system is designed to achieve a uniform fluoropolymer coating layer with a single-side thickness of no more than 0.1mm.
The specialized co-extrusion configuration produces two optical fibers simultaneously, improving production efficiency and maximizing equipment utilization.
The co-extrusion die is manufactured from Hastelloy C-276 alloy, offering excellent corrosion resistance and suitability for specialized fluoropolymer processing.
The die is designed to provide:
The production line is designed for operating speeds of 60–100 m/min, with 90 m/min as the target qualified speed. The servo-controlled haul-off system helps maintain stable production speed and fiber dimensions.
The 4-meter cooling tank is constructed from 304 stainless steel and features sectional heating zones:
Equipped with two haul-off units featuring 1.1KW Inovance servo motors and Φ350mm traction wheels. The adjustable speed range is 8–100 m/min, supporting synchronized fiber drawing.
The production line features two winding units, each equipped with a 1.5KW motor. Key functions include:
The electrical control system includes:
Equipped with an RMD75-80 integrated dehumidifying and drying system, featuring a 120L insulated hopper and an airflow capacity of 80 m³/h, helping maintain stable raw material processing conditions.
| Parameter | Specification |
|---|---|
| Fiber Type | PMMA Optical Fiber with Fluoropolymer Cladding |
| Production Structure | Two-Out Co-Extrusion |
| PMMA Extruder | SJ30 |
| Fluoropolymer Extruder | SJ20 |
| Fiber Diameter | 0.75 / 1.0 / 2.0 mm |
| Additional Target Diameter | 3.0 mm |
| Fluoropolymer Layer Thickness | ≤0.1 mm per side |
| Production Line Speed | 60–100 m/min |
| Target Qualified Speed | 90 m/min |
| Extrusion Output | 10–12 kg/h |
| Overall Line Length | ≤38 m |
| Equipment | Main Specifications |
|---|---|
| SJ30 Extruder | 5.5KW Meisike servo motor, Φ30mm screw, 28:1 L/D ratio, Guomao gearbox |
| SJ20 Extruder | 2.2KW Meisike servo motor, Φ20mm screw, 25:1 L/D ratio, adjustable and movable |
| Co-Extrusion Die | Hastelloy C-276, two-out design |
| Cooling Tank | 4m, 304 stainless steel, sectional heating |
| Guide Rollers | PEEK material |
| Haul-Off Units | 2 × 1.1KW Inovance servo motors, Φ350mm traction wheels |
| Winding Units | 2 dual-station units, 1.5KW motors, automatic cutting and spool changeover |
| Control System | Siemens PLC, 12-inch color touchscreen |
| Drying System | RMD75-80, 120L insulated hopper, 80 m³/h airflow |
The complete production line is designed with an overall length of no more than 38 meters to accommodate customers with limited factory space.
A customized equipment layout drawing can be provided, including machine dimensions, water inlet and outlet positions, electrical cabinet wiring arrangements and cable specifications.
YAOAN specializes in customized plastic extrusion machinery and precision co-extrusion systems. We provide optical fiber extrusion solutions according to different material combinations, fiber diameters, coating thicknesses and production speed requirements.
Contact our team to discuss your PMMA optical fiber production requirements and obtain a customized two-out optical fiber extrusion line solution.
