GZW-500LB Mini Desiccant Dehumidifier Overview
The GZW-500LB Mini Desiccant Dehumidifier is a compact rotary desiccant dehumidifier for industrial spaces and moisture-sensitive processes. It provides a rated dehumidification capacity of 2.35 kg/h at 20°C and 60% RH, with 500 m³/h process airflow and 165 m³/h regeneration airflow. The unit is designed for stable humidity control in applications where dependable low-humidity operation is required across a wide ambient temperature range.
With a corrosion-resistant SUS304 cabinet, PTC ceramic regeneration heater and intelligent control system, the GZW-500LB is suitable for continuous operation in industrial environments. For equipment selection, see our Industrial Dehumidifier Selection Tool or browse the Mini Desiccant Dehumidifier range.
Technical Specifications
| GZW-500LB Technical Specifications | |
| Parameter | GZW-500LB |
| Dehumidifying Capacity at 20°C, 60% RH |
2.35 kg/h |
| Process Air Flow | 500 m³/h at 145 Pa |
| Reactivation Air Flow | 165 m³/h at 90 Pa |
| Operating Temperature | -20°C to 56°C |
| Body Material | SUS304 |
| Controller Type | PCB + 86-type LCD |
| Primary / Regeneration Filter | G4 / G4 |
| Heater Type | PTC ceramic |
| Maximum Power | 3.58 kW |
| Maximum Current | 15.1 A |
| Power Supply | 220–240 V / 1 PH / 50 or 60 Hz |
| Weight | 53 kg |
Key Features
- Military-grade SCR temperature controller with a high-precision PT100 sensor for stable regeneration temperature control.
- High-efficiency PTC ceramic regeneration heater with up to 92% thermal efficiency and reliable operation up to 120°C.
- Intelligent control system with built-in protection functions for safe, reliable operation.
- Optimized air sealing and thermal insulation reduce heat loss and improve energy efficiency.
- Compact, corrosion-resistant industrial cabinet made from SUS304.
- Premium electrical components from OMRON, Schneider Electric and other established brands.
- Coobase or Joint desiccant rotor for consistent adsorption performance and long service life.
- Automatic and manual control modes for ambient temperatures from -20°C to 56°C.
Typical Applications
The GZW-500LB is suited to compact industrial humidity-control installations, including electronics and pharmaceutical production, battery and dry-room support, warehouses, laboratories, archives, cold storage and other areas where stable moisture removal is important.
Working Principle
Moist process air passes through the rotating desiccant rotor, where moisture is adsorbed. A separate regeneration airstream is heated by the PTC heater to remove the adsorbed moisture, allowing the rotor to continuously repeat the adsorption and regeneration cycle.
Component Brands
The standard configuration uses Continental for the rotor belt, Coobase or Joint for the desiccant rotor, Schneider Electric for the main electrical protection and switching components, OMRON for the delay timer, and Fans-tech for the process and regeneration fans. Technical specifications and dimensions are subject to change without prior notice.
For more information about humidity control standards,please refer to ASHRAE.