Tren de Luz UV SK1500

The SK1500 Light Train (Strahlerkette SK1500) is an ultraviolet lamp train for curing trenchless rehabilitation liners in medium and large diameter sewers, manufactured by Streicher Kanalsysteme GmbH, a German family-owned company based in Kressbronn on Lake Constance. With more than 30 years in the sewer rehabilitation sector, Streicher develops, produces and sells robots and systems for the inspection and rehabilitation of drainage networks, with ISO 9001 certification.

In the UV-cured CIPP (Cured-In-Place Pipe) process, a liner impregnated with light-sensitive resin is installed inside the damaged pipe and inflated with compressed air. The SK1500 travels through the liner at a controlled speed and cures the resin using 8 UV lamps arranged in 2 cores of 4 lamps each. Three infrared sensors measure the liner surface temperature at different points, and an additional sensor measures the air temperature inside the liner, enabling real-time monitoring of the curing process.

The train fits circular pipes from DN600 to DN1500 (24" to 60") and egg-shaped profiles from 600/900 to 800/1,200 mm (23.6"/35.4" to 31.5"/47.2"). Its lamps and wheels extend electrically to match the pipe diameter, so a single unit covers the full range without mechanical changes. The cores are self-supporting and interchangeable; for short liners, a single core can be used. Two cameras with self-leveling mounts and active cooling allow the process to be monitored, Teflon wheels protect the liner surface, and lamp cages shield the lamps from mechanical damage.

The SK1500 is part of Streicher's UV curing system, which includes the blower to maintain internal liner pressure, the UV cable drum with control to regulate pulling speed, and stainless steel packers to seal the liner ends. The system can be integrated into rehabilitation vehicles configured by the manufacturer.