TWEKO has successfully commissioned a modern paint and drying complex based on two AKFS Standard series paint and drying booths for one of Ukraine’s leading manufacturers of technological solutions. Each booth delivers a complete cycle: high-quality application of coating materials and controlled drying of complex metal structures. Thanks to a dry filtration system with multi-stage air purification and sustained positive pressure in the working area, the complex ensures consistently high coating quality, even on products with complex geometries.
About the Client
A research and production enterprise operating in the field of instrumentation and systems integration. The company provides a full cycle of complex equipment development — from R&D and engineering to serial production. The enterprise is a key partner of government institutions in the areas of technological security and import substitution. The production processes include machining and coating of metal products with stringent requirements for coating quality and uniformity.
Project Objective
The objective of the project was to ensure painting of large-sized products in a controlled air environment, with the capability to perform a separate drying cycle at regulated temperatures, implement multi-stage air filtration, maintain positive pressure in the booth within the range of 30–60 Pa, ensure uniform vertical airflow, integrate automated process control, and enable handling of heavy products with a load of up to 600 kg per wheel.
Proposed Solution
TWEKO implemented a paint and drying complex based on two identical AKFS series booths, model AKFS-S-7. Each booth has a working area of 7,000 × 4,000 × 2,700 mm, allowing processing of large-sized metal structures.
The ventilation system capacity reaches up to 22,000 m³/h. The total installed power of one booth is up to 135 kW. The noise level is approximately 65 dB in the working area.
The booths provide a complete cycle of painting and drying. Due to their identical configuration, parallel operation is enabled, which increases throughput and minimizes downtime.
The thermo-ventilation system of each booth is equipped with electric heating elements and operates in recirculation mode during the drying phase, ensuring stable temperature conditions while reducing energy consumption.
In painting mode, a vertical airflow pattern is implemented, with air supply through ceiling filters and extraction through floor filters. This configuration ensures efficient removal of paint overspray and uniform coating application.
The ventilation system includes supply and exhaust units with variable frequency drives (VFDs), allowing stable air balance and the required positive pressure to be maintained in the working area.
Air filtration is implemented using a multi-stage system: pre-filtration, ceiling fine filters, and floor filters for capturing paint overspray.
Process control is carried out using a programmable logic controller (PLC), with adjustable parameters including temperature, drying time, and ventilation operation.
Implementation Results
As a result of the project, the enterprise achieved a stable and controlled painting and drying process for large-sized products. The coating application process became uniform and repeatable.
The use of air recirculation optimized energy consumption, while maintaining positive pressure in the working area reduced the ingress of dust and contaminants into the booth.
The implemented complex fully meets the stringent technological requirements for high-quality coating of critical products and has been seamlessly integrated into the company’s production workflow.
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