gas cooled roots vacuum pump for chemical Industries

The air-cooled Roots vacuum pump is engineered to deliver high-efficiency vacuum pumping and long-term stable operation, even under high differential pressure. Its oil-free, air-cooled design makes it ideal for demanding industrial applications, offering excellent adaptability, reliability, and ease of maintenance.

Technical Data

• Power range: 5.5 kW to 355 kW
• Pumping rate: 1600 m³/h to 13500 m³/h
• Vacuum level: Medium-high vacuum, adjustable via series connection and process requirements

Features of Air-Cooled Roots Vacuum Pumps

1. High-efficiency mainframe design: Involute, contactless rotor structure with constant clearance reduces wear and friction, enabling stable operation under high differential pressure and compression ratio.
2. Air-cooling technology: Cooling gas flows through both sides of the pump body, maintaining performance and preventing overheating—even under high load.
3. High safety: Robust structure ensures safe, stable operation under severe conditions.
4. Oil-free structure: Suitable for corrosive or high-temperature gases, eliminating contamination from lubricants.
5. Flexible series operation: Can be used singly or in series for higher vacuum requirements, adapting to various process needs.

Working Principle

The pump uses two Roots-type rotors rotating in reverse synchronization inside the pump chamber. Gas is captured in the rotor grooves and discharged along the pump body, with each 180° rotation completing a suction and discharge cycle. Air-cooling ensures heat generated during compression is efficiently managed, supporting stable and continuous operation.

Application Areas

• Chemical industry: Pumping high-temperature or corrosive gases during chemical reactions.
• Electronics manufacturing: Provides precise vacuum for semiconductor production, coating, and plating.
• Pharmaceutical field: Used in vacuum drying and pharmaceutical manufacturing to ensure product quality.
• Food packaging: Supports vacuum packaging and anti-corrosion treatment of food products.
• Metal smelting: Vacuum extraction in metal melting and high-temperature smelting processes.
• Automobile industry: Supplies vacuum for coating processes and spraying equipment.
• Scientific research: Used in high-energy physics experiments and vacuum system research.

Performance Advantages

1. High vacuum and efficiency: Modular design allows combination for a range from rough to medium-high vacuum; pumping rate and vacuum level are adjustable.
2. Safety and stability: Runs safely at high differential pressures without overheating or overload.
3. Low noise and vibration: Precision design reduces operational noise and vibration.
4. Environmentally friendly: Oil-free operation eliminates oil contamination and environmental risks, reducing maintenance costs.
5. Easy maintenance: Simple, oil-free structure minimizes maintenance complexity and supports long-term, stable use.