UV LED curing technology for
glass fibre (GFRP) liners

LEDRig UV LED family of curing devices are designed for use with glass fibre reinforced polymer (GFRP) liners in the rehabilitation of sewer networks. Sewertronics’ patented cooling technology allows high efficiency of the LED modules, improving overall working and curing times compared with traditional UV lamps system. LEDRIG systems significantly reduce the electrical power necessary and the cost of ancillary equipment. Use Sewertronics’ online reporting application to create your own curing reports from a tablet device.

The range of working diameters starts at DN150 and goes up to DN600.



UV LED curing from DN150 to DN600

The LEDRig Lite system is a glass fibre curing solution for diameters ranging from DN150 to DN600. The high efficiency of UV LED technology means that electricity consumption can be reduced, while the equipment can be more portable and easier to use. Its modular design allows to implement different number of UV LED modules to adapt the unit to the diameter of the pipe.

LEDRig Lite has a 200 m long umbilical cable mounded on a reel fitted with wheels so that it can be transported to the work site. A compact control unit integrated in the cable reel supplies power to the eight UV LED modules that make up a compact array. LEDRig Lite is suitable for application in diameters ranging from DN150 to DN600.

LEDRig Lite

UV LED Advantages

Smart and efficient UV LED light radiation modules
Hi-efficiency LED modules take the best from every W of energy, minimizing unproductive heat and limiting the size of your power supply unit, while simplifying your ancillary equipment on site.

No wasted time on sequenced modules start-up. Classic UV lamp solutions are forced to set sequential start-up due to the large amount of power drawn (peak) at lamp initiation. All LEDRIG Lite modules are turned ON at the very same time, saving precious time on every job.

Switch LED off & head back home
UV LED modules do not reach dangerous working temperatures. As soon as you are done with your curing job, you are ready to take the unit off the manhole and go back home. Another time saving factor to become more effective in the field. Cure more liner on a simpler and lighter way.

Modular design

The LEDRig Lite UV LED modules are designed to be interconnected independently: the unit can control from 4 single modules up to 8 modules, including a front and rear camera modules.

Curing speeds

The LEDRig Lite curing system is designed to be versatile and the same time offer optimal curing speeds for its size and weight. These speeds will depend on the liner diameter and thickness. All these values are provided as a guide and may vary significantly depending on the type of liner and other conditions on the job site.

Passive cooling

LEDRig Lite features a patented design for the passive cooling of the LED curing modules. It avoids the use of compressed air inside the umbilical cable by using a set of especially designed lobes to dissipate the heat produced by the LED. The number, dimensions and shape of these lobes have been studied to ensure optimal transfer of energy to air in the conduction. This is normally done by compressor which also provides with the necessary pressure to elevate the liner to its correct position before curing.

On-Line reporting

LEDRig Lite units store the main data from every curing job. This information can be uploaded on our online reporting feature: to create your own reports, you would online need a tablet or PC and an internet connection. It is designed so the operator will be able to create a report showing the name of the contractor, client, project name, address, time & hour, curing time, LED head, start-finish manholes and contractor-client logo, and would be also possible to decide what parameters you want to show in the report (air pressure, LED temperature, curing speed, distance).


This on-line tool allows to display a preview of the report and then decide whether you want to use that configuration as final or change displayed parameters on it. The final output report is a pdf file that can then be sent to your client or just save for your own company records.


LED Rig Speed Tables 8x210 w

Aproximative and indicative curing speed values. Variation +/- 20% depending on glass-fibre type and manufacturer. Values for marketing purposes only.

LEDRig System Specifications


Dimensions (LxWxH) 136 x 589x 862 cm
Total Weight 140 kg (incl. 200 cable)
Material Chassis based on stainless steel, aluminium, ABS
Support Structure with 4 wheels

PLC Siemens

Main Monitor 10” installed within the C.U

WI-FI connectivity 2,4 GHz
Mode AP
Internet Access Socket RJ45 WAN, Mobile tethering via USB

Auto-stop function Yes
Emergency Stop Yes, Emergency Stop Button installed within the Control Unit
Power Additional RCD switch

Voltage 110 – 230V 50/60 Hz
Mains requirement E-type or Std. Schuko wall socket
Conection 5 m power cord with V-lock system
Power 2000W
Mains requirement Std. Schuko wall socket

Motorized Cable Reel Yes
Umbilical Cable 200m (Standard)

LEDRig Light Source Specifications


UV light source UV LED
UV-C peak wavelength 400 nm
Lamps Life (60.000 cycles@15 m) 1000 h

Dimensions (LxWxH) 3645x90x90
Total Weight 27 KG (without centering skids)
Material Aluminium & Copper

DN DN150-DN600
Sensors Internal Core Temp Sensor, Pressure Sensor, Air Temp Sensor

LEDRig End Caps (Set of 2)


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