Cast iron piston compressor WK900-7-5/270P input power 5.5 kW, suction power 900 l/min, pressure 10 bar, air receiver 270 l, voltage 400/50 V/Hz
Code: WK900-7-5/270PRelated products
Product detailed description
Walter WK900-7.5/270P – Industrial workhorse with top performance
The Walter WK900-7.5/270P is a high-performance piston compressor equipped with a massive 270-litre air receiver. Thanks to its three-cylinder cast-iron unit and a suction capacity of 900 l/min, it provides unwavering stability even in demanding industrial operations. It is the ideal solution where you need a large air supply without compromising the machine's lifespan.
This model stands out primarily for its robustness. The low unit speed (~900 rpm) means not only lower noise levels but, more importantly, slower wear of all mechanical parts. If you are looking for a machine that can handle long working shifts in an auto repair shop or on a production line, the WK900 is the clear choice.
- Three-cylinder cast-iron unit: Maximum durability and efficient heat dissipation for a long service life.
- Large air receiver: 270 litres ensures the motor doesn't switch on unnecessarily often.
- Stable three-phase power: The 5.5 kW motor can handle even peak loads.
- High output: With an effective output of 740 l/min, it can easily power multiple workstations simultaneously.

Technical specifications Walter WK900-7.5/270P |
|
|---|---|
| Motor power | 5.5 kW (7.5 HP) |
| Suction power | 900 l/min |
| Effective Discharge | 740 l/min |
| Maximum pressure | 10 bars |
| Air tank volume | 270 litres |
| Power supply | 400 V |
| Number of cylinders/stages | 3 / 1 |
| Unit speed | ~900 rpm |
| Weight | ~170 kg |
Technological innovations for higher reliability
The modernized WK 900 unit is not just about performance, but about the details that make a difference in service costs:
🔹 Metal intake filters: Unlike plastic replacements, steel covers have higher heat resistance and better dampen intake noise.
🔹 Reinforced sealing: More precise manufacturing of pistons and rings reduces oil consumption and increases the tightness of the entire system.
🔹 Effective filtration: A new metal filter insert extends service intervals and ensures cleaner air right at the intake.
🔹 Robust chassis: Despite weighing 170 kg, the compressor can be easily moved around the workshop thanks to large wheels and a handle.
Where will you best use this model?
- ✔ Large car and tire service centers: Powering impact wrenches, wheel balancers, and tire changers even under maximum load.
- ✔ Medium-sized paint shops: Thanks to the 270l tank and high output, it maintains constant pressure even during extended painting.
- ✔ Mechanical engineering production: Powering a wide range of pneumatic tools and blow-off stations.
- ✔ Sandblasting: Suitable for regular sandblasting of medium-sized parts.
Additional parameters
| Category: | Compressors for all applications - hobby and industrial |
|---|---|
| Warranty: | 3 years |
| EAN: | 5905122000141 |
| Compressor type: | Piston compressor |
| Pressure: | 10 bars |
| Suction power: | 900 l/min |
| Displacement: | 740 l/min |
| Pressure vessel volume: | 270 L |
| Design of pressure vessel: | Lying down |
| Connecting: | Quick coupling DN7.2, Ball valve 1/2" |
| Motor power: | 5.5 kW |
| Mains voltage: | 400/50 V/Hz |
| Speeds: | 902 rpm |
| Number of cylinders: | 3 |
| Number of grades: | 1 – single-stage compressor |
| Lubrication: | Oleic |
| Noise: | 80dB(A) |
| Dimensions: | 1650 x 510 x 1150 mm |
| Weight: | 165 kg |
| Accessories: | Pressure regulator, Wheels, Handle, Quick coupler, Ball cock |
| Engine: | Electric |
| Soundproofed: | No |
| Drive: | V-belts |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Mobile |
| In stock: | External warehouse |
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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.

