Tailor-made Aircompact system enhances air quality and safety in railway manufacturing operations
CRRC Qingdao Sifang, a core subsidiary of the world’s largest rolling stock manufacturer CRRC Group, has chosen Coral’s Aircompact filtration technology to improve air quality and dust control within its railway equipment manufacturing facility in Qingdao, China.
This strategic partnership underscores Coral’s ability to deliver high-efficiency, space-saving dust extraction solutions for global industrial leaders.
A demanding production environment
CRRC Qingdao Sifang is renowned for producing high-speed trains, metros, locomotives, and passenger coaches for domestic and international markets. The production process involves numerous operations such as grinding, cutting, and welding, all of which generate airborne pollutants including fine dust and welding fumes.
Key challenges faced by the client included:
- Effective dust collection in compact production zones with limited floor space
- Ensuring clean air for sensitive assembly areas and electronics
- Complying with occupational health and safety standards
- Implementing a low-maintenance, plug-and-play system to reduce downtime
Coral’s Aircompact: compact power, maximum efficiency
To meet these challenges, Coral delivered a modular Aircompact filtration unit, specifically engineered for industrial applications requiring high performance in a compact footprint. The system featured:
- Aircompact model with integrated fan and silencer
- Airflow capacity: up to 74,400 m³/h
- Filtration surface: 1440 m² with polyester cartridge filters
- Filtration efficiency: ≥99.9% on fine particulate matter
- Pulse-jet automatic cleaning system with pressure-controlled cycles
- Built-in sound insulation to keep noise below 72 dB(A)
- Configuration for fast installation and minimal disruption
- Compliance with most demanding safety standards
Coral technicians worked closely with CRRC engineers to customize the ducting layout and ensure optimal positioning within the plant’s structural constraints.
Pulsotronic ATEX unit: an extra step against fire risk
For the treatment of fire-hazardous or potentially explosive dusts, Coral has combined the Aircompact system with a Pulsotronic Atex 1250, a special modular unit for ST2-classified pollutants, custom-developed for CRRC Group.
- Airflow capacity: 1,250 m³/h
- Automatic cleaning system
- Filter clogging monitoring
- Easy mainenance thanks to horizontally positioned cartridges
- Low energy consumption
- Atex compliant
Project results
The Aircompact plus Pulsotronic integrated system delivered immediate improvements:
- Dust and fume levels significantly reduced in the target production zones
- Noise reduction enhanced operator comfort
- No impact on production schedules thanks to rapid deployment
- Maintenance reduced due to self-cleaning cartridge system
- Fire risk reduced
CRRC’s environmental and health & safety teams confirmed full compliance with internal and international standards following the installation.
Coral: trusted by global industry leaders
With decades of experience in dust extraction and air filtration, Coral continues to support industry leaders across railway, metalworking, energy, and transportation sectors. Our filtration solutions are designed to balance performance, space efficiency, and environmental sustainability.
Ready to upgrade your industrial air quality?
If you’re looking for a compact, high-efficiency filtration system like Aircompact, tailored to your specific production needs,
Contact Coral today to speak with one of our filtration specialists.
