Spray Booth Equipment
Jingzhongjing offers customized track-type large-scale train spray painting booths for extra-long and extra-large items such as train carriages, locomotives, urban rail, and subways. These booths are suitable for whole-vehicle painting, topcoat drying, primer curing, and refurbishment painting, combining six core advantages: large-scale operation, airtight insulation, ventilation and purification, temperature control and safety, energy efficiency and durability, and customization.
Modular assembly structure
It adopts interlocking EPS flame-retardant and heat-insulating color steel plate (50/70mm thick), with seamless interlocking splicing and aluminum alloy frame edging. The overall sealing performance is far superior to ordinary welded body, and heat is not easily lost and paint mist does not overflow. Extra-long body can be customized according to the length and height of the train formation, with matching track entry structure. The locomotive can drive directly into the body along the track without hoisting and transportation. It is suitable for whole carriage operation .
Flame-retardant and durable housing
The wall panels are made of zinc-plated anti-corrosion color steel plates, the roof is galvanized for rust prevention, and the platform is a galvanized steel frame with heavy-duty grating to support the weight of the train. It is not easily deformed or rusted under long-term heavy load, dust, and high-temperature conditions. The overall design service life of the machine can reach more than 20 years.
Pressure relief safety structure
The side walls are equipped with mechanical pressure relief locks, which automatically open the doors to release pressure when the air pressure inside the room is too high, preventing the room from bulging and deforming, and are suitable for high-volume exhaust conditions; the main door is equipped with a large observation glass window, allowing for a direct view of the painting and baking process from the outside .
High-power industrial-grade centrifugal fans (Siemens technology fans)
The top-to-bottom air supply and exhaust layout features uniform air supply from the top static pressure chamber and centralized exhaust from the bottom trench. The large-capacity chamber ensures stable laminar airflow without dust accumulation due to eddies. The fans have a large air volume, are resistant to high temperatures, and operate with low noise, making them suitable for long-term continuous painting operations. (Jingzhongjing Group)
Multi-stage paint mist filtration solutions are available
Dry type: Three-stage filtration system consisting of pre-filter + medium-efficiency filter + top cotton filter;
Water vortex/water curtain wet paint mist treatment: paint mist capture efficiency ≥98%, greatly reducing the frequency of filter cotton replacement, suitable for high viscosity train topcoat and thick primer spraying, exhaust gas pretreatment meets standards, and is compatible with environmental protection acceptance.
Water-based paint exclusive air supply configuration
Optional top-adjustable high-speed air nozzle accelerates flash drying of water-based paints, solving the problems of slow surface drying and sagging when spraying large areas of water-based paints on trains. Compatible with both oil-based and water-based coating systems. (Jingzhongjing Group)
Multiple heat sources are available to suit different factory conditions:
Fuel-fired heating (imported Riello burner + 304 stainless steel heat exchanger)
The stainless steel heat exchanger has high heat exchange efficiency, rapid heating upon startup, and a room temperature difference of ≤±3℃. The train roof, side walls, and bottom are heated evenly, eliminating localized overheating and paint film wrinkling. The Swiss electric damper enables automatic switching between spray painting and baking modes, with fresh air for spray painting and internal circulation for baking, resulting in energy-saving operation.
Far-infrared quantum radiation heating (primarily recommended for large, energy-efficient models)
Heating radiates from the inside out, heating the vehicle body substrate first and then curing the surface paint film, resulting in better adhesion; independent temperature control allows for separate heating of specific areas within the vehicle compartment, eliminating the need for heating the entire compartment and significantly reducing energy consumption; no open flame eliminates the risk of fuel leaks and fires, maximizing safety. (Jingzhongjing Group)
Steam/hot water heat exchanger models
It is compatible with centralized heating networks in factory areas, ensuring stable heat exchange, no open flame operation, and low maintenance costs. It is suitable for use in locomotive depots and continuous production lines in large vehicle factories . (Jingzhongjing Group)
Dual temperature control safety protection
The system features a dual interlock of electronic and mechanical temperature control, along with an over-temperature audible and visual alarm and automatic heat source cutoff to prevent damage to the train's interior, wiring, and metal substrates from high temperatures. It can maintain a constant temperature air supply (≥18℃) in winter and can also be used for painting in low-temperature environments, making it unrestricted by season.
High-brightness explosion-proof LED lighting
The top and side walls feature double-layer explosion-proof LED light clusters, providing an overall illuminance of 800–900 Lux. There are no blind spots in the corners and undercarriage, allowing for more precise color matching and defect detection. All lights are explosion-proof, eliminating the risk of ignition from paint mist and oil fumes, and complying with industrial explosion-proof standards .
Integrated intelligent control cabinet
It integrates functions such as spraying, baking, flash drying, lighting, emergency stop, and fault alarm, with one-button mode switching; it features linkage logic for fans, heaters, and dampers, and protection against misoperation, making it easy for beginners to operate; it supports optional PLC remote control and status monitoring, adapting to intelligent factory management.
After being pre-filtered for paint mist, the paint spraying exhaust gas can be directly connected to the downstream VOC catalytic combustion and activated carbon adsorption equipment. The complete set of coating exhaust gas treatment equipment can be provided by Jingzhongjing, which can provide integrated equipment for paint spraying and baking booths and exhaust gas treatment, completing environmental impact assessments in one stop without the need for secondary modifications.
The internal circulation baking mode significantly reduces exhaust emissions. Compared with direct-emission baking booths, the load on exhaust gas treatment equipment is reduced by more than 40%, resulting in lower operating electricity and consumable costs.
Customized operating conditions
Customizable track foundation, vehicle limit, retractable soft curtain entrance (shortening the building length and reducing floor space), maintenance pedestrian side door, chassis-specific ventilation opening, adaptable to different vehicle models and sizes such as locomotives, high-speed rail carriages, subways, freight cars, and trams.
Standardized parts + convenient maintenance
The fans, burners, filter materials, and heating elements are all universal standardized parts, which are easy to purchase on the market and have short downtime for maintenance. There are many service outlets across the country, and we provide on-site installation, commissioning, annual inspection and maintenance for railway projects.
Fully qualified
The equipment has ISO9001 quality certification, CE export certification, and environmental product certification, meeting the bidding qualification requirements of state-owned locomotive depots and rail transit companies.
Improved coating quality: Dust-free environment + constant temperature baking significantly improves the smoothness, gloss and weather resistance of the train's paint film, reducing rework and repairs;
Production costs have decreased: zoned infrared heating and internal circulation for paint baking are energy-saving, resulting in significant savings in consumables and electricity costs;
High site utilization: The overall modular structure has a short construction period, and the direct track layout eliminates the need for transfer stations;
Safety production meets standards: Multiple protections including pressure relief, over-temperature protection, and explosion-proof protection, conforming to railway plant area safety production management standards.
We have representatives in over 100 countries around the world, They provide dedicated after-sales support to ensure complete customer satisfaction and long-term operational confidence.
