Quality Check
Plant Engineering & Paint Booths


Finally, the Perfect Lighting

Wenker’s ERGO-LUX is setting new standards in surface inspection. Inspecting the paint job is one of the most important tasks on body production lines. And one of the most demanding. Identifying and eliminating the tiniest of errors requires exceptional concentration. If reflections interfere with visual inspections, quality controllers soon begin to lose their focus. The ERGO-LUX tunnel from Wenker is an efficient solution for performing quality control under ideal ergonomic conditions without having to make sacrifices.

Saving Resources, Working Economically

Thanks to the use of state-of-the-art LED lighting, the ERGO-LUX tunnel generates significantly less heat in the workstation and thus requires less air supply than a conventional system. This saves you up to 60 percent of your electricity costs during operation. At the same time, the lighting fixtures emit significantly less heat, making temperatures more pleasant for employees. The lighting system can be installed quickly and easily and requires minimal maintenance.

Light Tunnel for Flawless Surfaces

In conventional systems, light sources reflect off the surfaces to be evaluated, with the resulting direct light product producing a glare that can blind the responsible quality controller. This is why the ERGO-LUX tunnel utilizes a double light deflection effect. The lengthwise reflectors in the tunnel generate indirect light, producing contours of light and dark bands that allow employees to detect even the smallest irregularities quickly and clearly. Also, at 2500 mm in width, the reflector units illuminate entire sections of the body, such as the hood or side panels.

Ergo Lux overhead lighting modules set new standards for manual surface inspection. This logical next step in the company’s established portfolio of Ergo-Lux light tunnels is a stand-alone solution for lighting tasks.

Developed for inspecting glossy surfaces, Ergo-Lux overhead lighting modules have a total area of up to 9 m² in just a single unit. Generating no glare, the reflectors produce bands of light on the object’s surface, providing far greater contrast than conventional LED bulbs. Just one daylight LED strip is enough to illuminate up to 20 reflectors.

By deflecting the light, illumination levels of up to 10,000 lux can be achieved if required, without causing any glare. This technology is also used in the automotive industry, allowing workers to inspect leather more effectively for mosquito bites or other irregularities, for example. Despite the high concentration of light sources, there are no detectable shadows in the lighting area.

This type of application is also used in automotive body manufacturing. Selected areas are illuminated more intensely so that workers can detect areas of necking more precisely when inspecting behind the press, for example. Workstation ergonomics have been significantly improved and slippage reduced. Ergo Lux lighting modules are available in four standard sizes. Flexible attachment points give clients the option of using system supports and standardized load-bearing structures as required.


  • Efficient, targeted inspection lighting

  • Very low energy consumption thanks to fewer light sources

  • Component bathed in continuous, high-contrast illumination

  • Optional floor lighting can be implemented with no additional light sources

  • Low maintenance thanks to LED technology