Cold air source ideal for rapid cooling in small localized areas such as machine tool heads, cutting tools, electronic components, and welding applications. Suitable for precision cooling tasks in industrial environments. Features: - Portable cold air source designed for mechanical drying and cooling processes - Operates using compressed air to generate low-temperature airflow - Clean design with easy installation; includes flexible, adjustable tube for targeted cooling - Built-in control valve allows adjustment of airflow volume and output temperature - Constructed with plastic and metal materials for durability - Designed for continuous and stable operation in demanding industrial conditions Specifications: - Color: Silver + Blue - Material: Plastic + Metal - Condition: 100% New - Cold Air Unit Length: Approx. 13 cm (5.1 inches) - Flexible Tube Length: Approx. 21.2 cm (8.3 inches) Package Includes: 1 x Cold Air Unit 1 x Flexible Tube Working Principle: Compressed air enters the vortex tube at high speed, creating a rotating gas flow. Within the tube, the outer layer of air heats up while the inner layer cools down. The cooled air reverses flow along the center axis, producing a cold airstream with a temperature reduction of 25°C to 45°C below inlet temperature, while hot air is expelled separately. This process creates an effective cooling source without refrigerants. Note: Content limited to items listed. Other accessories not included. Color variations may occur due to lighting and display differences. Measurement tolerance: ±1–3 cm.