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Help CenterPositive and Negative Pressure High-pressure Fan: a Single Fan Has Both the Functions of Positive Pressure Blowing and Negative Pressure Suction (vacuum) Simultaneously, Also Known as a High-pressure Blower for Both Blowing and Suction.
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Positive and negative pressure high-pressure blowers (vortex/side channel type): A single blower has both positive pressure blowing and negative pressure suction (vacuum) dual functions, also known as a high-pressure blower for both blowing and suction.
The core is high-speed rotation of the impeller + centrifugal force + eddy current pressurization:
• Negative pressure (suction): A low pressure is formed at the center of the impeller, and the air inlet continuously sucks air, generating a vacuum of -40 to -700 mbar.
• Positive pressure (blowing): The gas is repeatedly accelerated in the annular cavity, and the air outlet outputs a high-pressure airflow of +40 to +800 mbar.
• Key points: Oil-free, non-contact, single-stage/double-stage impellers, can operate continuously for a long time
Core parameters
Power: 0.2–25 kW
• Flow rate: 25–2500 m³/h
• Positive pressure: ≤800 mbar (80 kPa)
• Negative pressure: ≤-700 mbar (-70 kPa)
• Structure: Aluminum alloy housing, direct drive, low noise
Main features
• ✅ Dual-purpose machine: Saves equipment, space, and reduces costs.
• ✅ Oil-free and clean: 100% oil-free, suitable for the food, pharmaceutical, and electronics industries.
• ✅ Low maintenance: No gears/pistons, only need to clean the filter.
• ✅ Flexible installation: Can be installed horizontally/vertically, suitable for complex working conditions.
Typical applications
• Vacuum feeding/conveying: Negative pressure sucks powder and granules, and positive pressure blows and conveys.
• Packaging and printing: Negative pressure sucks paper/film, and positive pressure cleans/seals.
• Environmental dust removal: Negative pressure collects dust, and positive pressure back-blows the filter bag.
• Water treatment: Positive pressure aeration, negative pressure sucks mud.
• Industrial automation: Adsorption and fixation, blowing and drying, waste recycling.
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