Flexan™ Enclosure

Clean Air Matrix

RoboVent engineers are experts in every category of air filtration and ventilation. The four categories below represent the major options for treating your contaminated air. RoboVent has designed solutions for each of these categories and has manufactured air filtration systems of unrivaled quality.

For more information about these categories, see Indoor Air Quality 101.


Large blowers and air filtration equipment draw contaminated air from the plant (typically at the ceiling level), filter it and return it to the plant. This is a proven solution in plants welding large parts with overhead cranes. It reduces the haze in the air, resulting in a cleaner working environment, with no negative pressure or heat loss.


Air in the immediate area of the welding activity is captured in a hood system, then filtered and returned to the plant. This is the best solution whenever possible. It allows for a more flexible system and removes the smoke directly from the operator's breathing zone. There are many types of source capture, including overhead hoods, crossflow hoods, fume arms and fume guns, some of which work better than others.


Large exhaust fans draw contaminated air from the plant and exhaust it directly into the environment, typically through the roof or walls. This is a traditional method and often results in negative air pressure. Also, it is very difficult to climate-control your plant and the system may not work well in the winter.

Air in the immediate area of the welding activity is captured in a hood, sent through ductwork, and exhausted directly into the environment. This is a lower capital cost alternative to filtration, but tends to result in high operating costs and large, unsightly ducting systems that work less efficiently with modifications. It also results in negative pressure problems.

A flexible, modular and simple solution providing both guarding and hooding for welding stations

The RoboVent Flexan™ Enclosure is a modular system that incorporates both guarding panels and an overhead hood and is revolutionary in design. The result is a complete enclosure that can be expanded in any direction, horizontally or vertically. The system consists of a bolt-together panel system that is designed to go together very quickly, and provide the flexibility of adjustable height, with a transparent polycarbonate top. The height of each guarding panel can be easily changed from 112"(284.48cm) to 162"(411.48cm) high, with the bridging structure that supports the top connecting to the fascia at the top of each panel.


Benefits of the Flexan Enclosure

Simple Installation: By using standard components, the Flexan Enclosure installs quickly, and can be simply modified to fit almost any welding station or production line. In many cases complete systems can be taken apart, modified, then reassembled in a couple of hours.

Modular Design: Modifications are easy due to the modular panel design. A guarding and hood system may be simply expanded and all the components may be re-used.

Transparent Top Lets Light In: A transparent, polycarbonate top allows light into the enclosure. This helps to avoid additional operator lighting in the enclosure and reduces safety risks.

Durable Design: The components of the Flexan Enclosure System are powdercoated to reduce the risk of surface scratches. This keeps the system looking new for the life of the product.

Lower Cost Shipping: The entire Flexan Enclosure system can be shipped LTL on 4′(1.22m) x 8′(2.44m) pallets, making transportation much easier.

Large Sizes Possible: The RoboVent Flexan Enclosure may be built in almost any size. Enclosures up to 30′(9.14m) wide by 120′(36.58m) long have been installed, all using standard components.


RoboVent WeldCat Series Collector

Flexan Enclosures are designed to integrate with the RoboVent WeldCat Series dust collector. The RoboVent Flexan Enclosure system and can be integrated into most robotic weld cell layouts.