Rotary Vane Compressors
Rotary Vane Compressors - HR 04 - 07 Compressors
The Hydrovane HR Series of rotary vane compressors unmistakably Hydrovane but one hundred percent new. It's not so much evolution, but Regeneration.
The Hydrovane Regeneration HR Series is reassuringly familiar on the outside with significant changes on the inside.
Key Facts
50/60 Hz
4 - 7.5 kW
7 - 10 bar
0.57 to 1.25 m3/min
20.1 to 44.1 cfm
Air compressor only or with tank (air receiver) or with air dryer or with all 3 including air filter packages available (left hand side below)
Versatile & reliable by design
Quiet as standard
With noise levels as low as 66 dB(A) a Hydrovane can be located at the point of use.
High quality air
Clean, dry and pulse free straight from the outlet means less downstream equipment required.
Slow speed
1450 - 2200 rpm speed operation results in low noise, low stresses and long life.
Direct drive
No gears, no belts. Up to 100, 000+ operating hours due to its simple integral design.
Here’s a clear overview of Rotary Vane Compressors, specifically the HR 04 – 07 series of compressors you asked about — what they are, how they work, typical specs, and where they fit in industrial use.
📌 What Are Rotary Vane Compressors?
A rotary vane compressor is a type of positive-displacement air compressor where a rotor with sliding vanes spins inside a cylindrical housing. As the rotor turns, air is trapped between the vanes and the housing, and the decreasing volume of these chambers compresses the air smoothly and continuously. This design delivers quiet, pulse-free air at moderate pressures and is known for reliability and low maintenance.
🔧 About the HR 04 – 07 Series (Hydrovane)
The HR 04 – 07 series refers to a range of Hydrovane rotary vane compressors (part of CompAir’s lineup) that are commonly used in workshops and light-to-medium industrial settings.
📊 Key Specifications
Power range: 4 kW to 7.5 kW (~5 HP to ~10 HP)
Operating frequency: 50 Hz / 60 Hz suitable for global use
Working pressure: approximately 7 – 10 bar (100 – 145 psi)
Air delivery (FAD): ~0.57 – 1.25 m³/min (20 – 44 cfm)
Noise level: as low as ~66 dB(A) (quiet operation)
Speed: slow rotational speed (1450 – 2200 rpm) for durability
Drive: direct drive (no belts/gears) for long life
These compressors can be supplied in different configurations:
➡️ Basic compressor unit (HRxxE)
➡️ With air receiver tank (HRxxER)
➡️ With dryer & filters integrated
➡️ Fully packaged solutions depending on your needs
🛠️ How They Work
Rotor & Vanes: A rotor with sliding vanes is eccentrically mounted in a cylinder.
Air Intake: As the rotor turns, air enters pockets between vanes.
Compression: The pockets shrink as the rotor turns, compressing the air.
Output: The compressed air exits steadily with minimal pulsation.
Advantages of this technology include:
Quiet operation compared with many other compressor types.
Smooth, continuous airflow with low pressure pulsations.
Low maintenance & long life due to fewer moving parts.
Clean air output suited for general pneumatics, workshops, packaging, lab tools, etc.
⚙️ Typical Applications
These compressors are widely used for:
Pneumatic tools and workshop equipment
Machine tool air supply
Packaging and assembly lines
Painting and finishing
Laboratories and dental compressors
General industrial air supply where medium pressure & continuous flow are needed
📌 In Summary
Rotary Vane Compressors — HR 04 – 07 Series are robust and efficient mid-range compressors ideal for industrial and workshop compressed air needs. They offer:
✔️ 4 – 7.5 kW power
✔️ 7 – 10 bar pressure output
✔️ Smooth airflow and quiet operation
✔️ Direct-drive design with long service life
