4 DRACARYS Climatic Chambers for Minebea

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Il Disgelo developed for Minebea Access Solutions a platform consisting of four DOT DRACARYS climatic chambers for thermal-climatic testing of components and systems.

The configuration includes three 408 L chambers, with temperature change rates up to 5 K/min, and one 225 L chamber. All units operate over a −40 °C / +180 °C range with relative humidity control.

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Developed Solution

The chambers feature a monoblock design with AISI 304 stainless-steel interiors, high-efficiency insulation and independent cycle control.

The three 408 L units use R454C refrigerant and inverter-controlled compressors.

The solution includes:

• 3 × 408 L DRACARYS chambers;
• 1 × 225 L DRACARYS chamber;
• −40/+180 °C temperature range;
• humidity up to 98% RH;
• temperature change rates up to 5 K/min on the 408 L units;
• independent test-cycle management;
• CSV data logging and export;
• CliMaLogic® control;
• Ethernet, VNC Viewer and Modbus TCP/IP.

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Main Technical Data

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DRACARYS 408 L

• quantity: 3;
• internal dimensions: 700 × 800 × 750 mm;
• temperature: −40/+180 °C;
• heating rate: up to 5 K/min;
• cooling rate: up to 5 K/min;
• humidity: 20–98% RH;
• temperature uniformity: ≤1 °C;
• refrigerant: R454C;
• operating power: approx. 14 kW per chamber.

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DRACARYS 225 L

• quantity: 1;
• internal dimensions: 500 × 600 × 750 mm;
• temperature: −40/+180 °C;
• heating rate: approx. 3 °C/min;
• cooling rate: approx. 2.5 °C/min;
• humidity: 20–98% RH;
• temperature uniformity: ≤1 °C;
• operating power: approx. 7 kW.

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Result

The project enabled Minebea Access Solutions to operate four independent climatic test stations, increasing laboratory testing capacity and allowing simultaneous validation of components with different dimensions and requirements.