Separate drying and humidifying systems
The controller calls on the required system as room humidity changes and stops the active humidity-control function at the selected setting. This reduces the need to swap between separate seasonal machines.
PRODUCT / TECHNICAL DATA Industrial Humidification & Dehumidification EquipmentSpecifications / Configurations / Procurement
PRODUCT GALLERYST
Product view
Industrial Humidification & Dehumidification Equipment
Constant Humidity Purification Unit
Product specifications
| Model | ST-3J | ST-7J | ST-10J | ST-15J | ST-20J |
|---|---|---|---|---|---|
| Brand | ST | ||||
| Dehumidification capacity | 90 L/day | 168 L/day | 240 L/day | 360 L/day | 480 L/day |
| Humidification capacity | 2 kg/h | 3 kg/h | 5 kg/h | 13 kg/h | 15 kg/h |
| Maximum power | 2 kW | 2.8 kW | 4 kW | 11 kW | 13 kW |
| Power supply | 220 V / 50 Hz | 220 V / 50 Hz | 380 V / 50 Hz | 380 V / 50 Hz | 380 V / 50 Hz |
| Dehumidification power | 1 kW | 1.5 kW | 3.2 kW | 5 kW | 6.5 kW |
| Humidification power | 1.65 kW | 2.4 kW | 4 kW | 10.5 kW | 12 kW |
| Applicable area | 20–30 m² | 50–80 m² | 80–200 m² | 120–300 m² | 300–400 m² |
| Airflow | 1000 m³/h | 2000 m³/h | 2500 m³/h | 3600 m³/h | 4000 m³/h |
| Refrigerant | R410A / R22 | ||||
| Humidification method | Electrode humidification | ||||
| Water supply | Piped connection with automatic water replenishment | ||||
| Net weight | 90 kg | 100 kg | 158 kg | 185 kg | 210 kg |
| Dimensions (L × W × H) | 539 × 452 × 1609 mm | 782 × 593 × 1965 mm | 980 × 590 × 2050 mm | 1180 × 590 × 2050 mm | |
Specifications can be customized to your requirements.
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Specify the quantity and configuration in your inquiry.
Constant Humidity Purification Unit combines dehumidification, humidification and air purification in one cabinet for rooms that can become either too damp or too dry. The controller removes moisture when humidity rises above the selected setting and calls for humidification when it falls below it, helping limit the moisture swings that affect paper, packaging and other humidity-sensitive materials.
The refrigeration system condenses excess water from the air, while the electrode humidifier uses an external piped water supply to generate humidifying steam. Automatic replenishment supports continued humidification, and the five configurations let the drying load, humidification demand and installation space be matched within the same product range.
FEATURES
Coordinated humidity control with operating protection
Electrode steam humidification
Electrical current through the humidifier water generates heat and steam. The piped supply replenishes the humidification system automatically during operation.
Air-purification function
Photo-oxidation and negative-ion air treatment are combined with the humidity-control functions in the same unit, bringing the room’s moisture and air-treatment tasks into one cabinet.
PLC control and remote monitoring
The PLC controller provides operating control, with RS-485 remote monitoring for connection to a compatible supervisory system and timing functions for scheduled switching.
Automatic defrost and fault indication
Automatic defrost supports the refrigeration section. Fault display and self-diagnosis help identify operating interruptions, with overload, low-water, water-leak and low-pressure protection.
Accessible cabinet construction
An aluminum-alloy profile structure, front control display and service panels bring operation and maintenance access to the front of the enclosure.
APPLICATIONS
Rooms with seasonal or process-driven humidity changes
Archives and document rooms
Manage both damp and dry conditions around paper records, helping limit moisture-driven dimensional change during storage.
Warehouses and material stores
Regulate humidity around packaging and moisture-sensitive stock when weather, ventilation or room use changes the indoor moisture load.
Controlled production rooms
Support processes that need stable ambient humidity, with purification incorporated into the room’s overall air-treatment arrangement.
Wine cellars and bottle storage
Manage damp or overly dry storage air around bottles, labels and packaging as seasonal conditions change.
MODEL SELECTION
Balance the two loads and the available space
Compact cabinets with 220 V supply
The first two configurations share the same cabinet dimensions. The second increases drying capacity and airflow without enlarging the footprint, making it relevant when the same installation space must serve a greater moisture load.
Intermediate capacity with 380 V supply
The middle configuration moves to a larger cabinet and higher humidification output. It suits projects where both moisture removal and moisture addition exceed the needs of the compact units.
Higher humidification demand
The two largest configurations provide a substantial step up in humidification output as well as greater drying capacity. The largest also requires a wider cabinet position, so compare peak moisture demand with the available floor space.
Water, power and room conditions
Match both seasonal moisture loads and the selected room humidity to the equipment. Provide a water connection suited to electrode operation, a condensate drain and the electrical supply shown for the chosen model.
FAQ
Installing the combined unit
Does humidification need an external water connection?
Yes. The electrode humidifier uses a piped supply with automatic replenishment. Plan the supply and service access together with the condensate drain.
How should the five configurations be compared?
Compare drying capacity and humidification capacity separately, then check airflow, electrical supply and cabinet dimensions. Floor area alone does not account for ventilation, door openings or changing moisture loads.
PROCUREMENT / INQUIRY
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