The Mekko AD303 humidity cabinet is a large, floor-standing dry cabinet with a 750-litre capacity. It keeps moisture-sensitive devices (MSDs) at 1 to 3% RH, with no nitrogen or compressed air needed. As a result, it is a smart choice for high-volume electronics production.

Why choose the Mekko AD303?

Moisture inside components can cause delamination and micro-cracks during reflow. For this reason, MSDs must be stored in very dry conditions. The AD303 uses the MTX-Flow active desiccant system to keep humidity low in a closed loop. This means there are no consumables to buy or replace.

The cabinet has a three-door front, so staff can reach stock quickly. In addition, a real-time digital read-out and a humidity meter accurate to ±1% RH let you check conditions at a glance. Therefore, quality teams have clear, ongoing proof of correct storage.

Key features

• 750-litre storage capacity
• Holds 1 to 3% RH
• MTX-Flow active desiccant drying
• No nitrogen or compressed air required
• Three-door front access
• Up to 30 removable sliding shelves
• Real-time read-out with ±1% RH meter
• Supports J-STD-033C storage requirements

Where to use the Mekko AD303

This cabinet suits sites that store large amounts of sensitive stock. For example, it is a good fit for:

• High-volume SMT production lines
• Aerospace electronics
• Medical device manufacturing
• Automotive electronics

Need access from both sides? The AD-305 model offers the same capacity with five doors, three on one side and two on the other. This setup suits pass-through workflows between areas.

Tips for best results

First, place the cabinet on a level floor away from doors and heat sources. Next, keep the doors closed as much as possible to hold the set humidity. Then group stock on shelves by job or floor life. Finally, check the read-out each shift and log the results for your quality records.

Need help with component storage?

OnBoard Solutions supplies dry storage cabinets to electronics manufacturers across Australia. You can browse our full dry storage cabinet range or view our PCB assembly equipment. To learn more about MSD handling standards, visit the IPC website. Alternatively, contact our team to order the Mekko AD303 today. We will help you find the right cabinet for your site.