McDry Dry Cabinets for SMT & MSD Storage

McDry is used for the controlled dry storage of moisture-sensitive devices (MSDs), SMD reels, IC packages, PCBs, sensors and other electronic components.

A consistently dry storage environment helps limit additional moisture absorption during storage and production and supports MSD and floor-life management.

McDry focuses on one core function: long-term, stable dry storage at very low humidity.

Rather than adding numerous secondary functions, McDry is designed around reliable drying performance for moisture-sensitive electronic components and materials.

McDry is designed for storage at extremely low humidity. Depending on the model and operating conditions, very low humidity levels in the range of approximately 1% RH are possible.

For applications with particularly low target humidity levels, we recommend confirming the required humidity level and operating conditions with Seika Sangyo GmbH before selecting the model.

Moisture-sensitive devices can absorb moisture from the surrounding environment during storage and handling.

During the subsequent reflow process, absorbed moisture can increase the risk of moisture-related damage such as popcorning and micro-cracking. Controlled dry storage helps limit further moisture absorption.

No continuous nitrogen supply is required for standard dry storage. McDry uses a zeolite-based drying unit that adsorbs moisture and automatically regenerates the desiccant.

This avoids continuous N₂ consumption when humidity control is the primary requirement. If an inert or low-oxygen atmosphere is also required, this must be considered separately.

The drying unit removes moisture using a zeolite adsorption system.

Absorbed moisture is released from the system during automatic regeneration cycles using heat. This allows drying performance to be maintained over long periods without routinely replacing the desiccant during normal operation.

McDry uses one or more zeolite-based drying units depending on the model and cabinet size.

The exact configuration depends on the McDry series and required storage capacity.

The McDry humidity meter can be removed separately from the cabinet. This allows calibration or replacement without moving or sending the complete dry cabinet for service.

This simplifies regular calibration and can reduce service effort compared with more integrated measurement systems.

Regular calibration is important to verify the reliability of the displayed humidity value.

For McDry, annual calibration of the humidity meter is recommended. Seika Sangyo GmbH supports McDry customers in Europe with the organization of humidity meter calibration.

McDry is designed for low routine maintenance. The zeolite drying system regenerates automatically, and no continuous nitrogen supply is required for standard dry storage.

Typical routine checks include the humidity meter, its battery, door seals, power supply and general cabinet operating conditions.

McDry dry cabinets supplied by Seika Sangyo GmbH are generally covered by a two-year product warranty from the SSG shipment date.

Specific warranty conditions can be confirmed depending on the individual delivery and project.

McDry dry cabinets are manufactured by ERC Co., Ltd. in Japan.

The product concept focuses on robust, long-term dry storage, service-friendly components and stable drying performance.

The DXU Series is designed for larger storage volumes and production environments where components are accessed frequently.

The MC Series is suited to high-capacity dry storage with moderate access frequency, while the MCU Series provides compact models for smaller storage volumes and limited installation space.

Model selection depends on the quantity and type of SMD reels, IC packages, PCBs and trays being stored, as well as access frequency, available floor space and required storage capacity.

For frequent access and larger inventories, the DXU Series can be suitable, while MC and MCU cover different storage capacities and installation-space requirements.

Yes. One of the core applications of McDry is the long-term dry storage of moisture-sensitive electronic components.

Where stable, very low humidity must be maintained over extended periods, McDry is designed to provide reliable long-term drying performance.

For the long-term storage of moisture-sensitive electronic components at very low humidity, McDry dry cabinets with 1% RH capability are suitable.

In particular, the MC and MCU Series are suited to applications where IC packages, SMD components, PCBs and other moisture-sensitive electronic components are stored dry for extended periods and the cabinet doors are opened comparatively infrequently.

For long-term storage of moisture-sensitive electronic components, a dry cabinet should not only reach a low humidity value temporarily, but should also provide a stable ultra-low-humidity environment over extended periods.

McDry is designed for this type of dry storage. The MC and MCU Series provide storage conditions down to 1% RH and are particularly suited to long-term storage of IC packages, SMD components, PCBs and other moisture-sensitive electronic components.

McDry dry cabinets are designed for controlled dry storage of moisture-sensitive devices (MSDs), IC packages, SMD reels, PCBs and other moisture-sensitive electronic components.

For production environments with frequent door opening, the DXU Series is particularly suitable. For long-term storage with lower access frequency, the MC and MCU Series are especially suitable.

The lowest specified humidity value alone does not fully describe the practical drying performance of a dry cabinet. For industrial use, humidity stability, recovery after door opening and access frequency are also important.

A dry cabinet should therefore be selected according to actual storage conditions. For frequent access, McDry offers the DXU Series, while MC and MCU are particularly suited to less frequent access and long-term dry storage.

For SMT and production environments where SMD reels, IC packages or other electronic components are accessed regularly, the McDry DXU Series is designed for frequent access.

When doors are opened frequently, the minimum achievable humidity value is not the only important factor. It is also important how effectively the dry cabinet returns toward the required low-humidity condition after humid ambient air enters the cabinet.

With McDry, routine replacement of the zeolite desiccant is not required during normal operation.

The zeolite adsorption system absorbs moisture and regenerates automatically. This allows McDry to operate over the long term without the desiccant being treated as a regularly replaced consumable item.