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NYFORS ReCoater 2 SC

The ReCoater 2 SC™ is used to restore the protective coating on acrylate coated optical fibers in high strength applications. This modified version of the manual ReCoater 2™ is equipped with special clamps for recoating applications where only short lengths of fiber are available. A narrower positioning and shorter distance between the fiber clamps than in the standard version enables clamping and recoating of fibers as short as 124 mm without reducing the recoat length itself.

Moulds are available in different sizes to cover a range of coating diameters and can easily be exchanged by the operator with no realignment required. Custom moulds are available upon request. With standard moulds the recoated part of the fiber is round with a diameter that perfectly and uniformly matches that of the original coating. The operator can also choose to perform recoatings with a cross section slightly smaller than the original coating (undersize) or recoatings with a larger diameter that overlaps the original coating at each end (overcoating).

Injection of recoating material is performed manually. While this does require a manual user operation, it also ensures flexibility because the user can immediately switch from one type of recoating compound to another (e.g. from a high index recoating material to a low index material) without any need to flush out a recoater reservoir and injection pumping system. This, in combination with the rapidly exchangeable moulds for different fiber sizes, ensures the flexibility and adaptability of the short fiber length ReCoater 2 SC™.

Fast curing is achieved through an highly efficient UV LED array arranged along the length of the mould. Curing times depend on the fiber and fiber coating diameter as well as on the properties of the customer selected recoating resin, but are typically as short as 3 seconds which allows for very fast recoating operations. It is also possible to cure low index recoating compounds used in fiber laser manufacturing.

The ReCoater 2 SC™ comes in an ergonomic bench top design for comfortable operation. The main operator interface is an easy to navigate and user friendly GUI on the touch screen control panel. System software supports storable and user defined programs for easy process change. Remote monitoring and supervision can be carried out through an Ethernet interface.

Short facts

  • Consistent, high quality recoating
  • Special fiber clamps for recoating with short fiber lengths
  • Easy mould exchange and replacement
  • Handles most fiber dimensions, with custom moulds available
  • Uniform diameter, overcoating and undersize recoating capability
  • Short curing times
  • High and low-index recoating
  • No need for compressed air or vacuum

Features

Technical Data

Curing time  Programmable, 3 s typical
Light source  UV LED
Wavelength  380-385 nm
Mould material  Silicone
Mould mounting  Exchangeable
Mould length  34 mm and 55 mm
Required fiber length  124 mm
Recoating diameter  165, 250, 300, 400, 550, 730 & 900 µm

Interface & Dimensions

PC connection  Ethernet and USB flash drive connection
Power supply  External 12 V DC, 60 W
Compressed air  Not needed
Dimensions  270 mm (W) x 170 mm (D) x 98 mm (H)
Weight  3.9 kg

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