Product Overview
GZZ Series Shipyard Painting Dehumidifier is a mobile integrated dehumidification system specially developed by Gaozhen for shipbuilding, steel structure and heavy-duty painting applications.
The system combines refrigeration dehumidification technology and rotary desiccant dehumidification technology to provide complete humidity control, cooling, heating and ventilation functions in one compact unit.
With a robust structure, flexible connection design and easy lifting and transportation, the unit is designed for outdoor all-weather operation under harsh industrial environments.
During shipyard sandblasting and painting processes, excessive humidity can cause rapid flash rust on steel surfaces, affecting coating adhesion and corrosion protection performance.
The GZZ Series maintains stable outlet air conditions under challenging inlet conditions from -5°C to 40°C and 50%RH to 95%RH, achieving outlet air temperature of 20°C~28°C and relative humidity ≤45%.
With airflow capacity ranging from 6,000 to 35,000 m³/h, it is an ideal solution for continuous fresh air supply, mobile operation and plug-and-play humidity control in painting applications.
Product Parameters
| GZZ Painting Dehumidifier (All-in-One Unit) | |||||||
| Component | Parameter | Unit | GZZ-6000 | GZZ-9000 | GZZ-12000 | GZZ-15000 | GZZ-18000 |
| Overall Unit Perf. |
Process Air Vol. | m³/h | 6000 | 9000 | 12000 | 15000 | 18000 |
| Cooling Cap. | kW | 120 | 180 | 240 | 300 | 360 | |
| Heating Cap. | kW | 54 | 81 | 108 | 135 | 162 | |
| Ctrl Range (T/RH) | – | T = 18～25℃ ±3℃, RH ≤ 45% | |||||
| Operating Temp. | – | T = -10～45℃ ±3℃, RH ≤ 95% | |||||
| ESP (Static Pres.) | Pa | ≥ 1200 | |||||
| Power Supply | – | 50Hz, 380V, 3PH 4-Wire / 3PH 3-Wire | |||||
| Rated Max Power | kW | 102 | 162 | 215 | 264 | 323 | |
| Unit Noise Level | dB(A) | 75 | 78 | 80 | 81 | 82 | |
| Process Air System |
Air Filter Type | – | Metal Mesh Panel Filter | ||||
| Fan Type | – | Single-Inlet Direct-Drive Centrifugal Fan | |||||
| Fan Quantity | Set | 1 | 1 | 1 | 1 | 1 | |
| Fan Power | kW | 7.5 | 11 | 15 | 18.5 | 22 | |
| React. Air System |
Air Filter Type | – | Metal Mesh Panel Filter | ||||
| Fan Type | – | Single-Inlet Direct-Drive Centrifugal Fan | |||||
| Fan Quantity | Set | 1 | 1 | 1 | 1 | 1 | |
| Fan Power | kW | 1.1 | 1.5 | 1.5 | 2.2 | 3 | |
| React Heat Power | kW | 45 | 67.5 | 90 | 108 | 130 | |
| Rotor System |
Rotor Type | – | HPS (High-Efficiency Silica Gel) | ||||
| Rotor Motor Power | kW | 0.04 | 0.06 | 0.09 | 0.1 | 0.1 | |
| Refrig. System |
Compressor Type | – | Semi-Hermetic Screw Compressor | ||||
| Compressor Qty | Set | 1 | 1 | 1 | 1 | 1 | |
| Compressor Power | kW | 30 | 45 | 11 | 75 | 90 | |
| Condenser Type | – | Copper Tube with Aluminum Fin Type | |||||
| Condenser Fan | – | Axial Flow Type | |||||
| Condenser Fan Qty | Set | 2 | 2 | 3 | 3 | 3 | |
| Condenser Power | kW | 7.5 | 11 | 11 | 15 | 22 | |
| Evaporator Type | – | Copper Tube with Aluminum Fin Type | |||||
| Refrigerant Type | – | R22 (Upgradable) | |||||
| Throttling Method | – | Thermal Expansion Valve (TXV) | |||||
| Heating System |
Heater Type | – | Electric Heating (Stainless Steel Tube Finned) | ||||
| Elec Heat Power | kW | 54 | 81 | 108 | 135 | 162 | |
| Dim. & Weight |
Dim. – Length | mm | 4400 | 4800 | 4800 | 5400 | 5600 |
| Dim. – Width | mm | 2000 | 2240 | 2240 | 2240 | 2240 | |
| Dim. – Height | mm | 2400 | 2600 | 2600 | 2800 | 2800 | |
| Net Weight | kg | 4500 | 5200 | 5600 | 6000 | 6600 | |
| Air Outlet Spec. | mm | 4-Ф200 | 4-Ф250 | 4-Ф300 | 4-Ф250 | 6-Ф300 | |
Product Features
Dual Dehumidification Technology for All-Season Operation
The Shipyard Painting Dehumidifier system integrates refrigeration dehumidification and desiccant rotor technology, combining high energy efficiency with deep moisture removal capability.
It provides stable humidity control throughout different seasons and changing environmental conditions.
Industrial Rotary Desiccant Technology
The Shipyard Painting Dehumidifier Equipped with high-performance silica gel desiccant rotor, the system delivers reliable moisture adsorption performance and long service life.
High Efficiency Refrigeration System
The Shipyard Painting Dehumidifier refrigeration system uses high-performance compressors to provide stable cooling and dehumidification performance with excellent energy efficiency.
Smart Control and All-Weather Protection
The Shipyard Painting Dehumidifier intelligent control system supports automatic and manual operation modes, enabling precise adjustment and convenient operation.
The built-in reheating system improves outlet air temperature during cold weather conditions, ensuring better coating performance.
Heavy Duty Mobile Design
The welded industrial frame provides excellent protection against rain, vibration and impact.
Heavy-duty lifting points allow easy transportation and relocation between different working areas.
High External Static Pressure Airflow Design
The high-pressure fan design allows stable airflow delivery even with long flexible ducts or complex air distribution systems.
Multiple air outlets can be independently adjusted to support simultaneous operation in different work areas.
Core Advantages
- All-season humidity control for painting environments
- Effective prevention of flash rust after sandblasting
- Improves coating adhesion and painting quality
- High airflow capacity for large working areas
- Suitable for 24/7 continuous industrial operation
- Mobile design for flexible job-site applications
- Lower operating cost with optimized energy control
Applications
- Shipyard sandblasting rooms
- Marine painting workshops
- Steel structure surface preparation
- Offshore platform maintenance
- Heavy-duty anti-corrosion coating projects
- Large industrial painting facilities
Technical Advantages
The Shipyard Painting Dehumidifier provides stable humidity control for surface preparation and coating processes.
By maintaining suitable temperature and humidity conditions, the system helps reduce flash rust, improve coating quality, extend corrosion protection life and increase production efficiency.
Why Choose Our Shipyard Dehumidifier
- Designed specifically for marine and heavy industrial applications
- Combination of refrigeration and desiccant dehumidification technology
- Reliable performance under extreme weather conditions
- Portable and easy-to-deploy structure
- Customized airflow and humidity control solutions
- Professional industrial humidity control experience
ASHRAE Handbook – HVAC Systems and Humidity Control Resources
https://www.ashrae.org/technical-resources/ashrae-handbook
ISO 12944 – Paints and Varnishes – Corrosion Protection of Steel Structures by Protective Paint Systems
https://www.iso.org/standard/92717.html
AMPP Standards – Association for Materials Protection and Performance
https://www.ampp.org/standards/ampp-standards