Post-Draw & UV Coating Solutions for Optical Fiber
March 19th, 2026
Boost your optical fiber production with our end-to-end post-draw and UV coating solutions. From coloring and proof testing to ribboning, take-up, and deuterium treatment. Nextrom provides everything you need. Designed for efficiency, precision, and high-quality output for both telecom and specialty fibers. Discover how to take your production to the next level.
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Alain Giraud
alain.giraud@rosendahlnextrom.com
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Post-Draw & UV Coating Solutions for Optical Fiber
Boost optical fiber production with Nextrom’s end-to-end post-draw and UV coating solutions, including coloring, proof testing, ribboning, take-up systems, and deuterium treatment for telecom and specialty fibers.
DFT 2500 dual fiber take-up
DFT 2500 dual fiber take-up​
Designed for continuous operation in the fiber draw process, the DFT 2500 utilizes Nextrom’s 1000 km reel technology to support long production runs with fewer changeovers. Automatic changeover at full line speed ensures a seamless process while minimizing scrap and maximizing usable fiber length.
Aluminum reels provide a durable and accurate alternative to conventional plastic reels without adding extra weight.
A specially designed reel cart further improves efficiency by simplifying the loading, unloading, and transport of fiber reels.
Continuous Take-Up
Automatic changeover at full line speed ensures continuous fiber draw process.
Reduced Scrap
Optimized winding minimizes material loss and maximizes usable fiber length.
Nextrom’s 1000 km reel technology
Supports up to 1000 km fiber lengths per reel, reducing changeovers and enabling long production runs.
OFC 35 proof testing and rewinding system
OFC 35 proof testing and rewinding system
The OFC 35 is a high-precision proof testing system specifically designed for telecom fibers. It ensures reliable and consistent quality by accurately applying and measuring optical fibers.
Delivering stable and repeatable results. Its robust design and user-friendly operation make it a dependable solution for daily production environments.
The OFC 35 is ideal for manufacturers seeking precise, efficient, and standards-compliant proof testing in optical fiber production.
Up to 3,000 m/min
High-speed proof testing with stable winding quality across all speeds.
High-Precision Testing
Accurate tension control and length measurement ensure reliable and repeatable results.
Stable Winding Process
Automatic turning correction and controlled stopping ensure stable winding and safe machine operation.
world´s fastest nextrom’s optical fiber prooftester
OFC 37 Optical Fiber Proof Tester
Nextrom takes optical fiber proof testing to the next level with the OFC 37 High-Speed Proof Tester. The world’s fastest optical fiber proof testing system, reaching process speeds of 3500 m/min. Its robust structural design is future-proofed for higher speeds up to 4000 m/min, supporting the next generation of high-capacity fiber production.
Beyond speed, the OFC 37 is engineered for practical, high-capacity post-draw proof testing. The line utilizes Nextrom’s 1000 km reel technology, enabling direct proof testing from draw spools into 50 km delivery spools for maximum efficiency. Its cleanroom space-saving side-by-side layout enables efficient factory integration, while the design allows front & back maintenance access, ensuring easy operation and service.
world´s fastest
OFC 37 proof tester process speed 3500 m/min. Structural design is future-proofed for higher speeds up to 4000 m/min
side-by-side layout
cleanroom space-saving side-by-side layout. Front & back maintenance access, ensuring easy operation and service.
Nextrom’s 1000 km reel technology
enabling direct proof testing from draw spools into 50 km delivery spools for maximum efficiency
OFC 30 telecom fiber proof testing line with automated reel handling system
OFC 30 Telecom Fiber Proof Testing Line
The OFC 30 is an automated proof testing line designed for high-capacity optical fiber production. Equipped with Nextrom’s Automatic Reel Handling System (RHS) and utilizing Nextrom’s 1000 km reel technology, it enables continuous, low-labor operation by eliminating manual reel changes and significantly reducing operator intervention.
In conventional proof testing, operators may perform up to 24 reel changes per shift, spending hours on manual handling. With RHS, these reel changes are reduced to zero, improving productivity and freeing up valuable operator time.
By automating reel handling and minimizing human interaction, the OFC 30 reduces the risk of errors, scrap, and unplanned downtime—ensuring stable, efficient, and repeatable production.
Increased Productivity​
Eliminates up to 24 reel changes per shift, reducing downtime and improving throughput.
Automated Reel Handling
RHS automates reel changes and significantly reduces manual intervention during operation.
Nextrom’s 1000 km reel technology
enabling direct proof testing from draw spools into 50 km delivery spools for maximum efficiency​
OFC 55 coloring and proof testing line with automated reel handling system
OFC 55 coloring and proof testing line with automated reel handling system
The OFC 55 is an automated tandem line combining fiber coloring and proof testing for maximum efficiency. Integrated with Nextrom’s Automatic Reel Handling System (RHS) and utilizing 1000 km reel technology, it enables continuous production with minimal manual intervention.
By merging both processes into one line, the OFC 55 reduces floor space, lowers operational costs, and increases throughput. Large batch processing further minimizes interruptions and improves overall productivity.
With Nextrom’s wet-on-wet Multi-Color Marking (MCM), the system enables high-speed multi-color fiber identification directly within the coating process—providing greater flexibility and minimal attenuation increase.
LED curing technology further reduces energy consumption while maintaining consistent curing performance.
2 Processes. 1 Line.
Combines fiber coloring and proof testing into a single, highly efficient process.
Automated Reel Handling
RHS automates reel changes and significantly reduces manual intervention during operation.
MCM Multi-Color Marking
Wet-on-wet Multi-Color Marking enables high-speed multi-color identification with minimal attenuation impact.
OFC 52i advanced coloring system
OFC 52i advanced coloring system
The OFC 52i is a high-speed coloring solution for efficient and flexible optical fiber production. With process speeds of up to 3,000 m/min, it delivers high productivity while maintaining excellent optical performance and minimal attenuation increase.
Advanced UV curing and precise process control ensure consistent quality and reliable operation. Optional features such as UV upcoating and ring marking provide flexibility for a wide range of product requirements.
With Nextrom’s wet-on-wet Multi-Color Marking (MCM), the OFC 52i enables high-speed multi-color fiber identification directly within the coating process. This eliminates separate marking steps, allows more than 80 identification combinations, supports higher line speeds, and achieves minimal attenuation increase comparable to standard coloring. The result is increased productivity, simplified processing, and greater flexibility in fiber and cable design.
LED curing technology further reduces energy consumption while maintaining consistent curing performance.
Up to 3,000 m/min
High-speed fiber coloring with excellent optical performance and minimal attenuation increase.
LED Curing Option
Energy-efficient curing reduces power consumption while ensuring stable process performance.
MCM Multi-Color Marking
Wet-on-wet Multi-Color Marking enables high-speed multi-color identification with minimal attenuation impact.
OFC 21 high speed ribbon line
OFC 21 high speed ribbon line
The OFC 21 is a high-speed solution for manufacturing optical fiber ribbons, supporting configurations from 2 to 24 fibers (up to 36 for split ribbons) at speeds of up to 1,000 m/min.
Advanced coating technology ensures precise fiber alignment, excellent ribbon geometry, and consistent optical performance. With flexible, modular design and recipe-based operation, the system enables reliable and efficient production.
Optional features such as combined coloring and ribboning, dual take-up, and automatic acrylate filling support continuous, high-capacity operation with minimal interruptions.
High speed production
Up to 1,000 m/min - High-speed ribbon production with consistent quality.
Precise Fiber Alignment
Individually controlled tension ensures accurate ribbon geometry and optical performance.
Continuous Production
Dual take-up and automatic acrylate filling reduce interruptions and enable stable, high-capacity production.
OFC 02 Deuterium Treatment System
OFC 02 Deuterium Treatment System
The OFC 02 Deuterium Treatment System is designed to ensure long-term optical performance of Low Water Peak Fibers (ITU-T G.652C). By treating fibers with deuterium gas, the system stabilizes attenuation characteristics and protects fiber quality over time.
Its modular design allows flexible configuration and easy adaptation to different production capacities, making it suitable for a wide range of manufacturing requirements.
An optional hydrogen ageing test can be integrated into the system to evaluate fiber sensitivity and further ensure compliance with industry standards.
The OFC 02 provides a reliable and scalable solution for manufacturers aiming to maintain consistent fiber performance and quality.
Stable Fiber Performance
Prevents attenuation increase by stabilizing low water peak fibers over their lifetime.
Modular Multi-Chamber Design
Scalable system architecture supports different capacities and production needs.
Integrated Hydrogen Testing
Optional hydrogen ageing test ensures fiber quality and verifies treatment effectiveness.
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