The Challenge

A major Canadian salad packaging facility operating a 15 HP Sullair compressor and a Nano twin-tower regenerative air dryer was still experiencing water and line freezing in its production freezer, where the temperature reaches –28 °F.

Even though the main compressor room had adequate drying and filtration, moisture was re-introduced as the air traveled through long piping runs and cooled rapidly before reaching the freezer.
This led to:
💧 Ice forming in air lines and valves
⚙️ Frozen actuators and control lines
⏱️ Unplanned downtime and costly clean-up interruptions

The customer needed a final point-of-use drying solution capable of maintaining reliable, moisture-free air in extreme sub-zero conditions.

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The Super-Dry Solution

Super-Dry recommended installing a Model D3 Desiccant Air Dryer directly at the point where the air enters the freezer area.

✅ Positioned at the end of the air line, the D3 removes residual moisture that the central system cannot capture after temperature drops.
✅ Compact and low-maintenance, the D3 easily fits near the freezer entrance without additional power or drains.
✅ Using desiccant drying, it ensures a consistently low dew point, keeping compressed air perfectly dry before entering the freezing environment.

With this setup, the customer achieved continuous operation without air-line freezing.

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Results

⚙️ No More Frozen Air Lines
The D3 dryer eliminated all moisture problems inside the freezer, even at –28 °F.

🥬 Improved Packaging Reliability
Production lines now run uninterrupted, ensuring consistent salad packaging quality and uptime.

💰 Reduced Maintenance and Downtime
Technicians no longer need to thaw or replace frozen air lines, reducing labor and production delays.

📈 Stable Air Quality and Dew Point
The system maintains a constant flow of clean, dry air throughout daily production cycles.

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Outcome Summary

By installing a Super-Dry D3 dryer at the point of use, this food-processing facility permanently resolved moisture and freezing issues that had persisted despite using a regenerative dryer.
The combination of main drying plus local Super-Dry protection created a robust and reliable solution for extreme low-temperature environments.

Product Highlight

Compressor Used: 15 HP Sullair
Existing System: Nano twin-tower regenerative dryer
Added System: Super-Dry Model D3 Desiccant Air Dryer
Application: Point-of-use air drying for freezer lines (–28 °F)
Result: No freezing, stable production, and dry compressed air at all times

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🏭 Client Description

A Canadian food-processing company specializing in fresh salad and vegetable packaging for retail and food-service customers.
Their operations require precise temperature control and high-purity air to maintain food safety, hygiene, and production efficiency.