Project Showcase: Delivering Olmas OS-720 Dehumidifiers to Protect Hoa Sen Sheet Metal Factory (Nghe An) During the 2026 Humid Season

The Fierce Battle to Protect "Steel & Sheet Metal" in the Heart of the March 2026 Humid Season

In March 2026, the North Central region of Vietnam, particularly Nghe An, is suffering from the most severe humid spells of the year. Air humidity consistently hovers above 90%, turning mechanical workshops and warehouses into stifling "saunas." For the metallurgy and sheet metal industry, high humidity is not just a discomfort; it is an "invisible killer" capable of devastating assets overnight.

To protect thousands of tons of finished steel coils from a rust catastrophe, the Hoa Sen Sheet Metal Factory (Nghe An) made a rapid strategic decision: Trusting and successfully commissioning the Olmas OS-720 Industrial Dehumidifier system, directly supplied and installed by DeAir right in the middle of the humidity storm.

1. 3 Reasons Why Steel/Sheet Metal Warehouses Must Use Dehumidifiers

Many mechanical factories still rely on subjective methods, throwing doors wide open to catch the breeze or using industrial fans to blow directly onto goods to "dry them faster." This is a fatal mistake leading to unpredictable consequences:

• Condensation (Sweating Steel): Steel coils have massive mass and physically retain cold temperatures for a long time. When warm, moisture-laden air blows into the workshop, the water vapor hits the cold steel surface and immediately condenses into droplets (the "sweating" phenomenon). Opening doors or turning on fans at this point only brings more water into the factory.
• The "White Rust" and "Red Rust" Catastrophe: Standing water instantly reacts with the zinc or color coating on the sheet metal surface, creating white rust or red rust spots. Within just a few days, a Grade A quality steel coil can plummet to Grade C, or worse, have to be sold as scrap.
• Production Line Paralysis: Sheet metal workshops house numerous CNC machines, large-capacity inverters, and industrial electrical control panels. High humidity permeates these systems, causing circuit boards to short out and arc, leading to total production downtime.

2. The Immediate Solution to Halt Rust: The Power of Olmas OS-720

Faced with the urgent need to save thousands of tons of sheet metal from the March humidity, DeAir immediately consulted and deployed the Olmas OS-720. This machine is born to tame vast factory spaces.

• Massive 720 Liters/Day Capacity: Ultra-fast moisture processing capability. The moment the workshop doors close, the machine immediately circulates the air, extracting suspended water vapor and thoroughly preventing condensation on the coils.
• Maintaining Standard Humidity: The smart sensor system of the Olmas OS-720 continuously measures and maintains the air humidity at a safe level (below 45-50%), the ideal threshold to eliminate metal oxidation.
• Durable 24/7 Operation: With a casing made of thick electrostatic-painted steel and a high-load compressor, the machine operates relentlessly amidst the dusty and harsh environment of a sheet metal rolling mill.

3. Future Orientation: Dual Savings with DeAir.RE Heat-Pump

The Olmas OS-720 excellently fulfilled its immediate "firefighting" mission, protecting Hoa Sen's assets. However, from the perspective of an in-depth microclimate solutions contractor, DeAir's engineers understand that for mechanical factories spanning tens of thousands of square meters requiring year-round dehumidification, electricity costs represent a colossal burden.

Therefore, for Hoa Sen's upcoming warehouse expansion plans and other large-scale metallurgy enterprises, DeAir proposes a strategic upgrade solution: The DeAir.RE Heat-Pump Dehumidifier Series.

• Save 50 - 70% on Electricity Bills: The breakthrough Heat-pump technology on the DeAir.RE series allows for the recovery of condensation heat to dry the air. You still get a massive dehumidification capacity (from 600 to 1200 liters/day), but power consumption is halved compared to older technologies.
• Ready for Factory 4.0: DeAir.RE machines are designed to easily integrate with BMS/SCADA control systems. Factory Directors can sit in the central control room to monitor coil warehouse humidity, analyze energy charts, and control equipment via their computer screens.

Conclusion: Being trusted by an industry giant like Hoa Sen proves the product quality and rapid execution capabilities of DeAir. Don't let the humid season turn your assets into scrap metal!