Cast iron WK650 aggregate on base frame power consumption 4 kW, suction capacity 650 l/min, pressure 10 bar, without air receiver, voltage 400/50 V/Hz

Code: WK650-PLATE
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WK 630 kompresor waůter pistovy vzduch tlak press air
€827,20 / pcs €683,64 excl. VAT
up to 14 days
Delivery to:
19.05.2026
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The WK650-PLATE reciprocating compressor with a cast iron twin cylinder unit delivers 5.5 HP, 10 bar pressure and an effective displacement of 550 l/min, making it the ideal solution for industrial applications, garages and workshops. The three-phase power supply (400 V) ensures stable performance even under continuous load. The self-contained unit without airbox allows easy integration into an existing system or replacement of an old compressor block. The low speed (~1,050 rpm) contributes to quieter operation, less vibration and longer machine life. Robust and reliable compressor block for professional use!

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Product detailed description

Cast iron compressor unit Walter WK650-PLATE (on a base frame) represents a robust industrial solution for operations requiring stable and high volume of compressed air. Thanks to the two-cylinder cast iron block and slow-running design, this unit is predestined for demanding applications where emphasis is placed on minimal maintenance and maximum operational reliability.

Industrial standard with Low RPM technology

The WK650-PLATE model utilizes the advantages of a large-volume unit, achieving a high output of 550 l/min while maintaining very low speeds, which fundamentally reduces thermal stress on components.

1️⃣ GK Series Construction Durability

Cast Iron 2V Unit – Massive cast iron cylinders ensure top-class thermal inertia and resistance to mechanical wear, even during long operating cycles.
Extremely Low RPM (993 rpm) – Operation below 1000 RPM means a radical extension of the lifespan of bearings, piston rings, and valve plates.

2️⃣ Modernized Filtration and Sealing

Steel Covers and Grille Filters – A new generation of suction filters with a metal insert guarantees clean air for the unit, even in demanding industrial environments, and resists mechanical damage.
Reinforced Valves and Seals – Innovative components ensure high compression efficiency and minimize oil penetration into the compressed air.

Litinový pístový kompresorový agregát Walter WK650 na rámu

Technical Parameters Walter WK650-PLATE (400V)

Suction power 650 l/min
Effective Discharge 550 l/min
Maximum working pressure 10 bars
Unit speed 993 rpm
Motor power 4.0 kW
Power supply voltage 400 V / 50 Hz
Number of cylinders 2V (cast iron)

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Ideal application of the WK650-PLATE model

Given its 4.0 kW power and frame mounting, this unit is suitable for:

  • 🔹 Industrial production – Ideal as a central air source for smaller lines or as a replacement unit for stationary stations.
  • 🔹 Painting shops and carpentry – Stable air supply for spray technology and pneumatic grinders.
  • 🔹 Car and tire services – Trouble-free power for demanding impact wrenches and tire changers for trucks.
  • 🔹 Modernization systems – Perfect for installation on existing air receivers with a volume of 270 to 500 liters.
Záruční servis a náhradní díly pro litinové kompresory Walter
Regulator advises: Watch those RPMs! The WK650 from Walter has dropped below the magical thousand mark (993 rpm). This means the unit won't be overworked, won't be noisy, and most importantly, won't overheat. It's a solid piece of iron that will serve you for years with proper oil changes. If you're installing it on an older tank, don't forget to check the safety valve – with this performance, there's no room for error!

Additional parameters

Category: Compressors for all applications - hobby and industrial
Warranty: 3 years
Compressor type: Piston compressor
Pressure: 10 bars
Suction power: 650 l/min
Displacement: 550 l/min
Pressure vessel volume: It isn't
Motor power: 4.0 kW
Mains voltage: 400/50 V/Hz
Speeds: 993 rpm
Number of cylinders: 2
Number of grades: 1 – single-stage compressor
Lubrication: Oleic
Noise: 80dB(A)
Dimensions: 800 x 450 x 450 mm
Weight: 71 kg
Engine: Electric
Soundproofed: No
Drive: V-belts
Air dryer: No
Retrieved from: Professional
Development: Stationary

Demonstrace výkonu litinového pístového kompresoru GK630-40-270 💼🌪️

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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.

WALTER Kompressortechnik - Špičkové Kompresory pro Průmyslové AplikaceObjevte vysoce kvalitní vzduchové kompresory od WALTER Kompressortechnik. Nabízíme šroubové, pístové, mobilní a speciální kompresory navržené pro maximální účinnost a spolehlivost. Ideální řešení pro průmyslové i menší dílenské aplikace. Využijte moderní technologie pro úsporu energie a dlouhou životnost. Navštivte naši stránku pro více informací o našich produktech a profesionální servisní podpoře.