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Optic-fiber secondary coating line
GLS-12/238 Optic-fiber secondary coating line

Optic-fiber secondary coating line

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12/238 Optic-fiber secondary coating line


The optic-fiber secondary coating line is mainly used for extruding 2 to 12 core fiber outer diameter Ф1.5 to Ф3.0 mm fiber loose tube bundle tube and cable filling rope extrusion. Extrusion materials should be suitable for PBT, PP, PC and PE. The extrusion shape is round, uniform and smooth.

Equipment feature

2.1. The design speed of the production line is 800 M/Min, and the production speed is ≥500~600 m/min (Ф1.80 mm, thickness 0.30 mm, PBT beam tube)

2.2. Machine residual length control range: 0 ~ 3 ‰.

2.3. In order to improve the stability and reliability of the product, the cold water circulation system of the machine adopts automatic constant temperature control and is equipped with a refrigeration device.

2.4. The fiber filling system has a constant temperature control device to make the filling amount accurate, stable and reliable.

2.5. The key electronic control components in production are all made of high quality products with reliable quality and convenient maintenance.

2.6. The extruder adopts 60 type, and the screw ratio is 25:1.

Technical configuration:

Pay off bobbins


Payoff tension

0.4~1.5 N±0.05 N

Payoff bobbin size

25 km and 50 km two kinds of fiber optic discs

Casing diameter

Φ1.5 mm~Φ3.0 mm

Continuous production length

Max 50 KM

Hot water tank water temperature

~80 °C

Refrigerator outlet water temperature

15 ° C ~ 25 ° C (adjustable)

Wire diameter deviation


Length control range

0~3 ‰

Length control accuracy

± 0.2 ‰

Length metering charge difference

≤0.2 %

Additional loss at room temperature

after plastic forming ≤0.02dB/km (average value is 0.01 dB/km)

Machine power


Production direction

Contractual agreement

Production line color

User specified

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