In November 2021, TWEKO completed a project for LLC “Krok Wood” (Svalyava) to implement a spray booth — model KF 000.00.00-ENERGIYA of the FPH series — equipped with water curtain filtration. The system created a controlled environment for applying paint and coating materials in a woodworking facility while meeting safety, temperature stability and maintenance requirements.
About the Client
LLC “Krok Wood” is a Ukrainian manufacturing company established in 2010, specializing in woodworking and furniture production. Located in the Zakarpattia region, the company serves both domestic and international markets.
Its production cycle covers wood processing through to finished products. To maintain consistent coating quality and comply with occupational health and safety standards, the company required a properly controlled painting area.
Project Objectives
- Commission the FPH-2.5 water-wash spray booth in full accordance with operating documentation.
- Establish stable supply and exhaust ventilation with multi-stage air filtration.
- Ensure precise temperature control within the working zone.
- Develop and implement a routine maintenance schedule and operator procedures.
Solution
The project covered the complete engineering cycle: design, fabrication, delivery, installation and commissioning of the KF 000.00.00-ENERGIYA spray booth (FPH-2.5 series), manufactured by LLC “Techservice VEKO i partner GmbH”.
All structural elements, unit layout and control logic were tailored to the production requirements of LLC “Krok Wood” and the specific needs of a woodworking painting department.
The booth operates on a vertical downdraft supply-exhaust principle with multi-stage supply air filtration and exhaust air cleaning via a water curtain followed by a final-stage filter.
Scope of supply and works included:
- Installation of the booth frame and enclosure in a dedicated production room;
- Integration of supply and exhaust ventilation system and hot-water air heating module;
- Connection of the heat-carrier circulation loop and control/shut-off valves;
- Configuration of automation system, temperature control and warm-up sequence;
- Full commissioning, performance testing and handover.
Commissioning was completed in full compliance with fire, industrial and electrical safety regulations applicable to Class B-IIa premises and handling of flammable coating materials.
Key System Components
- Ceiling plenum with final filters — ensures uniform distribution of conditioned supply air and creates a stable vertical downdraft across the working area.
- Supply air handling unit — delivers filtered and heated air to the plenum; driven by a 5.5 kW motor.
- Exhaust fan unit — removes contaminated air from the booth and discharges it outside; driven by a 4 kW motor.
- Water-to-air heat exchanger — heats incoming air using hot water; complete with circulation pump and control/shut-off valves.
- Water curtain — captures the majority of paint overspray, reducing aerosol concentration in the exhaust stream.
- Automatic control system — monitors working zone temperature, manages heat exchanger warm-up and provides system status indication.
Technical Specifications — KF 000.00.00-ENERGIYA (FPH-2.5)
| Parameter | Value |
|---|---|
| Dimensions | |
| Internal working zone | 4 045 × 3 920 × 2 500 mm |
| External overall dimensions | 5 000 × 3 920 × 2 900 mm |
| Equipment weight | 3 240 kg |
| Ventilation | |
| Supply fan | 5.5 kW / 1000 rpm |
| Exhaust fan | 4 kW / 1000 rpm |
| Filtration principle | Water curtain + fine particulate filters |
| Heating | |
| Water-to-air heat exchanger | Hot water heat carrier; airflow 10,000 m³/h; 3 tube rows; bimetallic finned tubes |
| Maximum booth temperature | Up to 60 °C |
| Electrical | |
| Main power supply | 380 V / 50 Hz |
| Lighting power supply | 220 V / 50 Hz |
| Total connected load | 11 kW |
| Environmental Conditions | |
| Climatic classification | UHL 4 (GOST 15150-69) |
| Ambient temperature range | −25 … +30 °C |
| Relative humidity @ 20 °C | 45–75 % |
| Noise level (inside booth) | 65 dB |
| Application method | Manual pneumatic spraying |
Operating Principle
The booth operates on a vertical downdraft principle. Ambient air passes through a pre-filter, then through the water-to-air heat exchanger where it is heated to the required set point.
The conditioned air is distributed through the ceiling plenum and final filters, forming a uniform downward airflow across the working zone.
During spraying, overspray particles are entrained by the downdraft and directed toward the rear exhaust section. Exhaust air passes through the water curtain where the majority of paint particles are captured, followed by final filtration before discharge outside the building.
This configuration ensures stable air exchange, consistent temperature control and reduced aerosol concentration within the working area.
Maintenance & Safety
Filter replacement intervals are based on operating hours. Electrical connections are inspected every 100 operating hours, and seals are checked for integrity. All work is performed using appropriate personal protective equipment.
The booth complies with fire safety regulations for Class B-IIa premises. High-temperature monitoring and ventilation fault indication are provided.
Results
- Controlled environment for consistent coating application achieved.
- Stable and repeatable temperature conditions in the spray zone.
- Multi-stage air filtration implemented.
- Improved safety and workflow organization.
- Clear maintenance schedule and operator procedures established.
Summary
The project for LLC “Krok Wood” demonstrated the effectiveness of the FPH-2.5 water-wash spray booth in woodworking production. The solution successfully integrated a controlled painting process into the company’s manufacturing flow.