Dehumidifier

INDUSTRIAL DEHUMIDIFIER SYSTEMS FOR BLASTING & PAINTING APPLICATIONS 

During abrasive blasting operations, freshly prepared steel surfaces are highly susceptible to flash rusting when exposed to environments with high relative humidity (RH). If the relative humidity exceeds acceptable limits, moisture present in the air condenses on the blasted steel surface, initiating rapid oxidation prior to the application of the protective coating system. 

Once flash rusting occurs, the prepared surface no longer complies with the required surface preparation standards (such as ISO 8501 / SSPC / NACE requirements), which results in rejection of the surface preparation and necessitates re-blasting and additional surface treatment. This leads to increased operational costs, project delays, and reduced coating performance. 

Relative humidity is a critical environmental parameter influencing corrosion kinetics. Higher RH levels significantly accelerate the corrosion process, while maintaining lower RH levels increases the safe holding period (SHP) between blasting and coating application. Therefore, effective humidity and dew-point control within blasting and painting enclosures is essential to ensure coating integrity and compliance with international coating specifications. 

To mitigate these challenges, industrial dehumidification systems are widely implemented in enclosed blasting and painting environments to maintain controlled atmospheric conditions by reducing ambient moisture content and stabilizing the dew point differential between steel surface temperature and air temperature. 

Euroblast offers a comprehensive range of industrial-grade dehumidifier systems specifically engineered for abrasive blasting and protective coating applications. 

Key Features and Technical Advantages 

• Wide Processing Capacity Range
  Available with airflow capacities ranging from 1,000 m³/hr to 32,000 m³/hr, suitable for small blasting enclosures as well as large-scale blasting halls and containment structures. 
• Advanced Dehumidification Technologies
  Units are available in both Desiccant Wheel Technology and Refrigerant-Based Dehumidification Systems, allowing optimal selection based on site climatic conditions, ambient humidity levels, and operational requirements. 
• Precise Humidity Control
  Equipped with adjustable dehumidification capacity and controllable outlet air temperature, ensuring accurate environmental conditioning for blasting and coating operations. 
• Optimized Air Intake System
  Designed with large inlet grills and high-efficiency filtration systems to ensure maximum airflow intake while preventing ingress of dust and contaminants. 
• Heavy-Duty Industrial Construction
  Manufactured with robust structural steel frames, lifting eyebolts, and reinforced components, enabling reliable performance in harsh industrial environments. 
• Containerized Design Options
  Systems can be integrated into containerized modules, providing enhanced protection against weather exposure and simplifying transportation and deployment at site locations. 
• Flexible Indoor and Outdoor Installation
  Designed for both indoor blasting facilities and outdoor containment blasting operations, offering maximum operational flexibility. 
• Service-Friendly Maintenance Design
  All critical components such as filters, desiccant wheels, blowers, and control systems are easily accessible for routine maintenance, inspection, and component replacement, minimizing operational downtime. 

Application Areas 

Euroblast Dehumidifier Systems are widely used in: 

• Shipyards and marine structures 

• Oil & gas fabrication yards 

• Steel fabrication facilities 

• Tank blasting and coating projects 

• Bridge maintenance and rehabilitation 

• Industrial blasting and painting chambers 

These systems ensure controlled environmental conditions, helping contractors maintain compliance with international coating standards while improving productivity and coating durability. 

TECHNICAL DATA SHEET OF 22000 CMH DEHUMIDIFIER