Perfect piston compressor - 5.5/500 power input 5.5 kW, output 750 l/min, pressure 10 bar, air receiver 500 l, voltage 400/50 V/Hz
Code: P55500CZRelated products
Product detailed description
Industrial piston compressor ATMOS Perfect 5.5/500 (5.5 kW, 400 V)
Looking for maximum air volume capacity without compromising on lifespan? The ATMOS Perfect 5.5/500 is a robust, slow-running workhorse equipped with the legendary three-cylinder cast-iron unit LB 75[cite: 2]. Thanks to the combination of high 5.5 kW power and an oversized 500l air receiver, this machine is the ideal choice for operations with high intermittent demand, paint shops, or commercial vehicle tire services.
What makes the ATMOS Perfect 5.5/500 stand out:
- ✅ Massive air reservoir: The 500-liter air receiver minimizes switching cycles, saves the motor, and ensures stable pressure even during prolonged use.
- ✅ Record low speed: The unit operates at only 950 rpm[cite: 2]. This design ensures minimal wear, low operating temperature, and a record lifespan for the bearings.
- ✅ Hand-assembled in Chrást: Each unit is assembled by a specific expert who bears personal responsibility for the final quality and proper testing of the machine[cite: 1].
- ✅ Three-cylinder LB 75 heart: The cast-iron workhorse with a "W" configuration offers perfect balance, smooth operation, and high energy efficiency[cite: 2].
- ✅ 60-month warranty: The manufacturer provides an unlimited five-year warranty on the reliability of the Czech-designed Perfect series.
- Cast-iron durability: Three-cylinder block made of high-quality cast iron designed for continuous operation[cite: 2].
- Fully automated operation: Start-stop control with a branded pressure switch[cite: 1].
- Protection and safety: Motor overcurrent protection and a complete set of safety fittings.
- Aftercooler: Standard equipment for effective reduction of air moisture and temperature.
- Quiet operation: Massive cast iron combined with low speeds effectively dampens noise.
- Suitable for heavy-duty operation: The construction is so robust that these machines reliably operate even in biogas plants.
- Optimal Cooling: Large fan circulates air through generously dimensioned cooling fins[cite: 1].
- Drive: V-belt designed for maximum stability and quiet operation[cite: 1].
- Robust Design: The 250 kg air receiver ensures absolute stability during operation.
- Czech Tradition: Quality proven by thousands of installations in the Czech Republic and abroad.
Cast iron crankcase LB 75 (W configuration)
Oversized 500l horizontal air receiver
Complete equipment including aftercooler
Perfect series compressors and their designs

Technical Specification (ATMOS Perfect 5.5/500) |
|
| Piston unit | LB 75 (3 cylinders in W, single-stage) [cite: 2] |
| Performance (discharge) | 750 l/min (0.750 m³/min) [cite: 2] |
| Intake amount | 960 l/min (0.960 m³/min) [cite: 2] |
| Nominal motor power | 5.5 kW (400 V / 50 Hz) [cite: 2] |
| Unit speed | 950 rpm (record low) [cite: 2] |
| Cut-out / Cut-in pressure | 10 / 8 bar [cite: 2] |
| Air tank volume | 500 l (horizontal) |
| Dimensions (l x w x h) | 1990 x 650 x 1300 mm |
| Weight | 250 kg |
| Protection (characteristic D) | 25 A |
Ventilek advises: The 5.5/500 model is an "energy reserve". With the 500-liter tank, the LB 75 unit has plenty of time to rest, and you are guaranteed that you won't run out of air even when spraying large areas. The fact that these machines also run in biogas plants speaks for itself. With a five-year warranty and honest Czech cast iron, you simply have peace of mind for decades of work!
Need advice?
🔗 How to choose the right compressor power?
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Additional parameters
| Category: | Compressors for all applications - hobby and industrial |
|---|---|
| Warranty: | 5 years |
| Compressor type: | Piston compressor |
| Pressure: | 10 bars |
| Suction power: | 960 l/min |
| Displacement: | 750 l/min |
| Pressure vessel volume: | 500 L |
| Design of pressure vessel: | Lying down |
| Connecting: | 1/2" |
| Motor power: | 5.5 kW |
| Mains voltage: | 400/50 V/Hz |
| Speeds: | 950 rpm |
| Number of cylinders: | 3 |
| Number of grades: | 1 – single-stage compressor |
| Lubrication: | Oleic |
| Noise: | 78 dB(A) |
| Accessories: | Wheels, Handle, Ball cock |
| Engine: | Electric |
| Soundproofed: | No |
| Drive: | V-belts |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Mobile |
| Piston unit: | LB 75 |
| Dimensions: | 1 990 x 650 x 1 300 mm |
| Weight: | 250 kg |
| Container outlet: | Ball valve 1/2" |
| Compressor switching pressure: | 8 bar |
| Compressor cut-out pressure: | 10 bars |
| Pressure difference: | 2 bars |
Jak vznikají české kompresory ATMOS: Pohled do výroby!
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A domestic company of world quality
One of the leading companies operating in the field of compressed air not only in the Czech Republic, but also in the world, is the domestic manufacturer ATMOS Chrást s.r.o., which presents itself mainly by the production of screw and piston compressors, screw blocks and motor generators. The roots of the company go back to 1899, when foundries and machine shops were established in the West Bohemian village; during the communist regime, the machine shops belonged to the national company Škoda Plzeň. It was at the end of this era that the company began licensed production of screw blocks and screw compressors, which became very popular over the years due to their reliability. Since then, ATMOS has come up with more than 25 new compressor types - creating a range of mobile, locomotive or stationary compressors that are subject to the most stringent global standards, adding the hallmark of honest design that is so much a part of ATMOS even in today's consumer age.
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A product offer for everyone
ATMOS is constantly working on new compressors and the characteristics are subject to regular technological research. As a result, the company has already come up with innovative ideas on several occasions, such as when it extremely reduced the noise level of stationary compressors without losing their top performance parameters, thanks to which they have been widely exported abroad. However, in addition to large companies, ATMOS also meets the needs of private customers with smaller workshop machines. Another breakthrough was the creation of the small and compact Albert compressors, whose product range is constantly expanding and are suitable for hobby use. More than 60 of these types are currently in production, with outputs ranging from 3 to 22 kW. The company is the youngest to launch motor generators, filling one of the gaps in the domestic market.
An overview of the compressors offered by ATMOS at Air Compressors can be found below.

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