Cast iron piston compressor VWK550-4-0/90P Power consumption 3 kW, suction capacity 550 l/min, pressure 10 bar, air receiver 90 l, voltage 400/50 V/Hz
Code: VWK550-4-0/90PRelated products
Product detailed description
Vertical Piston Compressor Walter VWK550-4.0/90P is a high-performance solution designed for operations requiring a significant volume of compressed air but having limited floor space. With a three-cylinder cast iron unit and a vertical 90-liter air receiver, this machine offers the stability and power of an industrial compressor in a space-saving design.
Three-Cylinder Power on a Vertical Base
The VWK550 model utilizes a unique three-cylinder arrangement, ensuring smoother operation and more efficient cooling than typical two-cylinder models, which is crucial at an intake capacity of 550 l/min.
1️⃣ Top-Tier GK Series Construction
✅ Three-Cylinder Cast Iron Unit (3W) – The robust cylinder construction guarantees excellent thermal resistance and long service life, even during demanding work cycles.
✅ Low Operating Speed (1,202 rpm) – The Low RPM slow-speed technology significantly reduces noise and mechanical wear of internal components.
2️⃣ Innovations in Filtration and Protection
✅ Steel Filters with Metal Mesh – New intake inserts with a protective mesh guarantee top-tier air purity for the unit. The steel cover protects the filter from damage during workshop handling.
✅ Reinforced piston group – More precise manufacturing and modernized seals reduce oil ingress into the air and increase overall compression efficiency.
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Technical parameters Walter VWK550-4.0/90P (400V) |
|
|---|---|
| Suction power | 550 l/min |
| Effective Discharge | 440 l/min |
| Maximum working pressure | 10 bars |
| Air tank volume | 90 l (vertical) |
| Motor power | 3.0 kW |
| Power supply voltage | 400 V / 50 Hz |
| Number of cylinders | 3W (cast iron) |
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Applications and benefits of the VWK550 model
Thanks to its vertical design and high power of 3.0 kW, it finds application in professional environments:
- 🔹 Larger car services and paint shops – Sufficient air for powering demanding tools, tyre changers, and paint guns.
- 🔹 Woodworking and metalworking – Ideal for powering staplers, grinders, and blow-off stations in a small space.
- 🔹 Assembly lines – Stable air supply for pneumatic presses and automation components.
- 🔹 Maintenance in limited space – The vertical design allows installation in corners or next to machinery where a horizontal tank would be an obstruction.

Additional parameters
| Category: | Compressors for all applications - hobby and industrial |
|---|---|
| Warranty: | 3 years |
| Compressor type: | Piston compressor |
| Pressure: | 10 bars |
| Suction power: | 550 l/min |
| Displacement: | 440 l/min |
| Pressure vessel volume: | 90 L |
| Design of pressure vessel: | Standing |
| Connecting: | Quick coupling DN7.2, Ball valve 1/2" |
| Motor power: | 3.0 kW |
| Mains voltage: | 400/50 V/Hz |
| Speeds: | 1,202 rpm |
| Number of cylinders: | 3 |
| Number of grades: | 1 – single-stage compressor |
| Lubrication: | Oleic |
| Noise: | 80dB(A) |
| Dimensions: | 630 x 550 x 130 mm |
| Weight: | 110 kg |
| Accessories: | Pressure regulator, Wheels, Handle, Quick coupler, Ball cock |
| Engine: | Electric |
| Soundproofed: | No |
| Drive: | V-belts |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
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WALTER Kompressortechnik - Innovative Solutions for Compressors
- About the company WALTER: WALTER Kompressortechnik is a renowned manufacturer of air compressors and accessories, known for its quality, reliability and innovative technologies. The company focuses on providing highly efficient solutions for various industries.
- Product portfolio:
- Screw compressors: we offer a wide range of screw compressors that are designed for maximum energy efficiency and long life. Ideal for high demanding industrial applications.
- Reciprocating compressors: these compressors are robust and reliable, suitable for smaller applications and workshops where high flexibility and low running costs are required.
- Mobile compressors: lightweight and easily portable compressors that allow easy use in a variety of locations, ideal for construction and field work.
- Scroll and special compressors: provide quiet operation and are suitable for specific applications requiring minimal vibration and noise.
- Innovation and quality: WALTER emphasizes continuous development and improvement of its products to ensure maximum customer satisfaction. Their compressors are equipped with advanced technologies to optimise performance and save energy.
- Customer support and service: the company offers comprehensive service, including installation, maintenance and diagnostics, ensuring the long-term reliability and efficiency of their equipment.

