Container dehumidifier
What is a container dehumidifier?
A container dehumidifier is a specially designed device that absorbs moisture inside shipping containers. This product is essential to protect goods from condensation and consequential damage that can occur during transport or storage.
Why is moisture in the container a problem?
Significant temperature fluctuations can occur when goods are transported in containers. As the temperature drops, the hot air, which may contain more moisture, cools and the moisture condenses. This phenomenon is known as “container rain” or “cargo sweat”. Moisture can cause mould growth, damage to packaging, deterioration of labels and other problems that can significantly affect the quality and integrity of the goods being transported.
How does the container dehumidifier work?
Container dehumidifiers work on the principle of moisture absorption. They are made of materials with high absorption capacity, such as calcium chloride, starch, silica gel or desiccant clay. These materials effectively reduce the relative humidity inside the container and thus prevent condensation.
Types of container dehumidifiers
- Desiccant paws: this is a pack containing desiccant that can be easily placed in a container. They have a high absorption capacity and are available in different sizes and forms.
- CORPAC COR-DRY GEL: This type of dehumidifier combines calcium chloride and starch, allowing it to have extremely high absorption capacity in areas of high humidity. It is ideal for long transport by truck, train or ship.
- Thomar OHG: Specialized desiccant dryers that are designed to operate efficiently even with significant temperature fluctuations during transport and storage.
Advantages of using container dehumidifiers
- Prevents moisture damage: protects goods from unwanted moisture and condensation.
- Prevents mould growth: moisture encourages the growth of mould, which can spoil goods.
- Prevents white rust: Especially on unwrapped zinc or galvanized steel parts.
- Easy handling: the desiccant packs and gel dehumidifiers are easy to use and quick to install.
How to choose the right container dehumidifier
When choosing a container dehumidifier, it is important to consider several factors:
- Length of transport: longer transport requires dehumidifiers with higher absorption capacity.
- Item type: some materials are more sensitive to moisture than others.
- Climatic conditions: transportation through different climatic zones may require special dehumidifiers.
Other container news...
High Cube container specifications
A high cube container — also referred to as an HC container, HQ container, or high-cube — is an intermodal shipping container that stands one foot taller than the standard ISO container. While a standard general-purpose container measures 8 feet 6 inches (2.59 m) in external height, a high cube container extends to 9 feet 6 inches (2.89 m). This extra 12 inches of vertical clearance translates into approximately 10–15% more cubic capacity without altering the container’s footprint — the same length and width are maintained, meaning the container occupies the same floor space on a vessel, chassis, or storage yard.
Shipping container parts
A shipping container looks like a simple steel box from the outside, but it is an assembly of dozens of precisely engineered shipping container parts — each governed by international standards, each designed to survive decades of ocean transit, crane lifts, and stacking loads that would crush an ordinary structure. Whether you are buying a used container, planning a container home, troubleshooting a repair, or simply building your logistics vocabulary, understanding every individual component is the difference between making an informed decision and an expensive mistake.
40 Foot Container Dimensions
If you have ever booked ocean freight, planned a warehouse layout, or designed a modular building project, you have asked the same question: what are the exact 40 foot container dimensions — and what do they mean for what you can actually load? The numbers are standardized worldwide, but the practical implications of those numbers are surprisingly nuanced. A 40-foot container is not simply 40 feet of usable space, and its weight limits are not what most people assume. This guide covers every measurement, every weight rating, and every loading consideration you need to make informed decisions about the world’s most common shipping container.
Quick Answer: A standard ISO 40-foot shipping container measures 12.19 m (40 ft) long × 2.44 m (8 ft) wide × 2.59 m (8 ft 6 in) high externally and provides approximately 67.7 m³ (2,390 ft³) of usable internal volume. The maximum gross weight is 30,480 kg (67,200 lbs), with a typical payload capacity of approximately 26,700–26,800 kg (58,900–59,000 lbs).
Cargo worthy container
If you have ever shopped for a used shipping container, you have almost certainly encountered the term cargo worthy — often abbreviated as CW or CWO (Cargo Worthy Only). It is one of the most important classifications in the container industry, yet it is also one of the most misunderstood. A cargo worthy container is not a container that looks new. It is not necessarily a container that has a valid CSC plate. And it is definitely not the same as a wind and watertight container. This guide explains what cargo worthy really means — from its technical definition and historical origins to the precise structural criteria, inspection process, cost implications, and common misconceptions that trip up even experienced buyers.