TWEKO successfully delivered a turnkey project involving the design, manufacturing, and commissioning of a spray and drying booth from the AKFS series for RIOMAX GRUPO (Spain). The solution provides surface preparation, paint application, and drying processes within a controlled environment. The booth, with a working area of 8600 × 4500 × 3340 mm, is equipped with a dry filtration system and ventilation capacity of up to 27,000 m³/h. A key feature of the project is the customized layout with a side-mounted air handling unit, which allowed seamless integration into an existing facility with limited space while minimizing duct length. Additionally, the booth was manufactured in colors adapted to the client’s corporate identity and equipped with roll-up doors and an external control panel.
About the Client
RIOMAX GRUPO is a Spanish company based in Catalonia (Girona province), operating in the automotive sector and providing services including vehicle sales, rental, maintenance, and repair. One of its key activities is bodywork repair and painting, which require stable process conditions and consistent coating quality control.
Project Challenge
Due to the expansion of production capacity, the client required the implementation of a paint booth solution capable of ensuring controlled air parameters, process stability, and compliance with technological requirements.
Proposed Solution: Engineering Adaptation to Facility Constraints
To meet the project requirements, an AKFS series spray booth, model AKFS-S-9 with dry filtration, was selected. Considering the limitations of the existing production space, a custom layout was implemented: the booth was installed directly against the wall with a side-mounted air handling unit. This approach optimized space utilization and reduced ductwork length.
The booth was manufactured in colors aligned with the client’s corporate identity: a grey body with orange accents instead of the standard TWEKO light blue finish.
The project also includes roll-up doors and an external control panel, ensuring convenient operator access and integration into the existing production infrastructure.
![rio-v2-4[1]](https://t-weko.com/wp-content/uploads/sites/18/2025/10/rio-v2-41.jpg)
![rio-v2-3[1]](https://t-weko.com/wp-content/uploads/sites/18/2025/10/rio-v2-31.jpg)
Technical Specifications and Equipment
- Working area dimensions: 8600 × 4500 × 3340 mm — suitable for processing passenger vehicles and medium-sized commercial vehicles.
- Ventilation performance: airflow capacity up to 27,000 m³/h ensures stable air exchange and maintains positive pressure of 10–30 Pa, reducing the risk of dust contamination in the painting zone.
- Thermal system: a diesel burner combined with an indirect heat exchanger provides drying temperatures up to 60°C with adjustable режимs.
- Filtration: a multi-stage dry filtration system (pre-filters, ceiling filters, labyrinth filters, and fiberglass filters) ensures air purification throughout all process stages.
- Lighting: LED lighting (6500 lm) provides sufficient illumination of the working area.
Operational Characteristics
The total installed power of the equipment is approximately 20 kW. The noise level inside the working area does not exceed 65 dB. All painting and drying processes are controlled via an external control panel with temperature, time, and pressure regulation.
Project Results
The implementation of the AKFS-S-9 spray booth enabled RIOMAX GRUPO to establish a stable painting and drying process under controlled conditions. The multi-stage filtration system and maintained positive pressure reduce the risk of dust entering the painting zone.
The air recirculation mode during drying reduces energy consumption while maintaining a stable temperature regime. The customized layout ensured integration into the existing facility without structural modifications.
The equipment operation complies with ventilation, temperature control, and safety requirements in accordance with the technical documentation. The implemented solution provides a complete painting and drying cycle and can be adapted to other production environments.
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