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    Home / Compressors / Walter reciprocating compressors; GK cast iron robust machines

    Cast iron piston compressors WALTER: Industrial power without compromise

    WALTER cast iron piston compressors represent the pinnacle of professional compressed air sources. Thanks to their massive all-cast-iron construction, precise workmanship, and low-speed operation, they offer extreme durability, minimal wear, and very low operating costs. They are designed for heavy industrial operations, metalworking, and large-capacity car repair shops.

    The latest generation of these compressors brings significant improvements and covers a wide range of applications – you can choose from versions with an operating pressure of 10, 13, and 15 bar.

    Why choose cast iron compressors WALTER?
    • ✅ All-cast-iron unit: High strength and unparalleled heat dissipation, ensuring resistance to overheating.
    • ✅ Low speed: Slow-running operation radically reduces noise and extends machine life.
    • ✅ Top-class filtration: New intake filters with a steel mesh protecting the unit even in dusty environments.
    • ✅ Optimized cooling: Large fan and intercooler for safe operating temperature.
    Masivní litinový pístový kompresor Walter řady GK pro průmysl

    Technical parameters of WALTER GK cast iron compressors
    Order number Pressure (bar) Speed (min⁻¹) Intake (l/min) Discharge (l/min) Power input (kW) Tank (l) The cylinders Voltage (V/Hz) Noise dB(A)
    WK430P-PLATE 10 1 276 430 340 2,2 - 2V 400/50 80
    WK430AP-PLATE 10 1 276 430 340 2,2 - 2V 230/50 80
    WK430-3-0/50P 10 1 276 430 340 2,2 50 2V 400/50 80
    WK430-3-0/50AP 10 1 276 430 340 2,2 50 2V 230/50 80
    VWK430-3-0/90P 10 1 276 430 340 2,2 90 2V 400/50 80
    VWK430-3-0/90AP 10 1 276 430 340 2,2 90 2V 230/50 80
    WK430-3-0/100P 10 1 276 430 340 2,2 100 2V 400/50 80
    WK430-3-0/100AP 10 1 276 430 340 2,2 100 2V 230/50 80
    WK430-3-0/200P 10 1 276 430 340 2,2 200 2V 400/50 80
    WK430-3-0/200AP 10 1 276 430 340 2,2 200 2V 230/50 80
    WK550P-PLATE 10 1 202 550 440 3,0 - 3W 400/50 80
    VWK550-4-0/90P 10 1 202 550 440 3,0 90 3W 400/50 80
    WK550-4-0/100P 10 1 202 550 440 3,0 100 3W 400/50 80
    WK550-4-0/200P 10 1 202 550 440 3,0 200 3W 400/50 80
    WK550-4-0/270P 10 1 202 550 440 3,0 270 3W 400/50 80
    WK650P-PLATE 10 993 650 550 4,0 - 2V 400/50 80
    WK650-5-5/270P 10 993 650 550 4,0 270 2V 400/50 80
    HWK700-5-5/270P 13 817 600 500 4,0 270 2V 400/50 80
    HWK700-5-5/270P-15P 15 776 560 470 4,0 270 2V 400/50 80
    VWK650-5-5/270P 10 993 650 550 4,0 270 2V 400/50 80
    WK900P-PLATE 10 902 900 740 5,5 270 3W 400/50 80
    WK900-7-5/270P 10 902 900 740 5,5 270 3W 400/50 80
    VWK900-7-5/500P 10 902 900 740 5,5 270 3W 400/50 80
    WK900-7-5/500P 10 902 900 740 5,5 500 3W 400/50 80
    WK1500P-PLATE 10 768 1 500 1 100 7,5 - 4V 400/50 80
    WK1500-10/500P 10 768 1 500 1 100 7,5 500 4V 400/50 80
    HWK1200-10/500P 13 725 1 120 960 7,5 500 4V 400/50 80
    HWK1200-10/500P-15P 15 688 1 060 900 7,5 500 4V 400/50 80

    Explanations: A - 230 V version, V - Vertical space-saving machine design, H - High-pressure version for 13 and 15 bar pressures.

    Use of cast iron compressors WALTER

    • 🔹 Industrial plants – Continuous operation in assembly lines and sandblasting operations.
    • 🔹 Car and tire service centers – Reliable source for impact wrenches and tire changers.
    • 🔹 Craft workshops – Carpentry, metalworking, and powering spray equipment.
    • 🔹 Construction – Powering demanding pneumatic tools.
    Detailní přehled náhradních dílů a příslušenství pro kompresory WALTER
    Maskot Ventilek radí s výběrem litinového kompresoru WALTER

    The valve advises: Look at the new intake filters with a steel mesh in the documentation – that's precisely the detail that distinguishes a professional machine from a toy. With the latest generation, Walter has also improved the valves and seals, so these machines reliably hold even in the 15-bar versions for laser cutting or sandblasting. And if you have a small workshop with high demand, don't forget to check out the vertical models ("V" at the beginning of the name) – they will save you a lot of space!

    Bestsellers

    Cast iron piston compressor HWK1200-10/500P-15P input power 7.5 kW, suction power 1120 l/min, pressure 15 bar, air receiver 500 l, voltage 400/50 V/Hz
    up to 14 days
    Code: HWK1200-10/500P-15P
    Was: €3 674,05  (–10 %)
    €3 306,64
    (€2 732,76 excl. VAT)
    Cast iron piston compressor HWK700-5-5/270P-15P 4 kW input power, 560 l/min suction power, 15 bar pressure, 270 l air receiver, 400/50 V/Hz voltage
    up to 14 days
    Code: HWK700-5-5/270P-15P
    Was: €2 434,30  (–10 %)
    €2 190,87
    (€1 810,64 excl. VAT)
    Cast iron piston compressor HWK700-5-5/270P input power 4 kW, suction capacity 600 l/min, pressure 13 bar, receiver 270 l, voltage 400/50 V/Hz
    up to 14 days
    Code: HWK700-5-5/270P
    Was: €2 434,30  (–10 %)
    €2 190,87
    (€1 810,64 excl. VAT)

    Product sorting

    28 items total

    List of products

    walter wk430 3 0 100ap 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 025,39 –10 %
    Cast iron piston compressor WK430-3-0/100AP power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air tank 100 l, voltage 230/50 V/Hz
    Stock (1 pcs)
    €762,69 excl. VAT
    €922,85 / pcs

    The most balanced WALTER model for 230 V: cast iron unit 2.2 kW, delivery 340 l/min and horizontal air receiver 100 l. A single machine for standard workshop tasks without a...

    Code: WK430-3-0/100AP
    walter wk430 3 0 100p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 025,39 –10 %
    Cast iron piston compressor WK430-3-0/100P power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air receiver 100 l, voltage 400/50 V/Hz
    Stock (1 pcs)
    €762,69 excl. VAT
    €922,85 / pcs

    WALTER 2.2 kW entry-level cast iron platform in a balanced combination with a 100 l air receiver: displacement 340 l/min, 400 V, 1276 rpm. For a single workstation in a smaller...

    Code: WK430-3-0/100P
    walter wk430 3 0 50ap 1 hlavni
    Action New Tip + Free gift
    FREEFREE €898,97 –10 %
    Cast iron piston compressor WK430-3-0/50AP power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air receiver 50 l, voltage 230/50 V/Hz
    Stock (1 pcs)
    €668,65 excl. VAT
    €809,07 / pcs

    Cast iron compressor for standard 230 V: 2.2 kW, 340 l/min displacement and a horizontal air receiver 50 l. The smallest WALTER series compressor with a tank that can be simply...

    Code: WK430-3-0/50AP
    walter wk430 3 0 50p 1 hlavni
    Action New Tip + Free gift
    FREEFREE €898,97 –10 %
    Cast iron piston compressor WK430-3-0/50P power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air tank 50 l, voltage 400/50 V/Hz
    Stock (1 pcs)
    €668,65 excl. VAT
    €809,07 / pcs

    The smallest WALTER series compressor with a pressure vessel: 2.2 kW, effective delivery 340 l/min and a horizontal air receiver 50 l for 400 V. Suitable for blowing, inflating...

    Code: WK430-3-0/50P
    walter wk550 4 0 100p 1 hlavni
    Action + Free gift
    FREEFREE €1 434,74 –10 %
    Cast iron piston compressor WK550-4-0/100P power input 3 kW, suction capacity 530 l/min, pressure 10 bar, air receiver 100 l, voltage 400/50 V/Hz
    Stock (1 pcs)
    €1 067,17 excl. VAT
    €1 291,27 / pcs

    Three-cylinder cast iron unit 3.0 kW with a delivery rate of 440 l/min on a compact 100 l air receiver. Full class performance in the smallest horizontal configuration, 400 V.

    Code: WK550-4-0/100P
    walter wk550 4 0 200p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 632,33 –10 %
    Cast iron piston compressor WK550-4-0/200P power input 3 kW, suction capacity 530 l/min, pressure 10 bar, air receiver 200 l, voltage 400/50 V/Hz
    Stock (1 pcs)
    €1 214,13 excl. VAT
    €1 469,10 / pcs

    WALTER Universal Workshop Compressor: three-cylinder 3.0 kW with a displacement of 440 l/min and a 200 l air receiver. Storage and power in the recommended ratio, 400 V.

    Code: WK550-4-0/200P
    walter wk650 5 5 270p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 887,97 –10 %
    Cast iron piston compressor WK650-5-5/270P input power 4 kW, suction capacity 630 l/min, pressure 10 bar, air receiver 270 l, voltage 400/50 V/Hz
    Stock (1 pcs)
    €1 404,28 excl. VAT
    €1 699,18 / pcs

    The WK650-5.5/270P reciprocating compressor with a cast iron twin cylinder unit and 270 litre air receiver delivers 5.5 HP, 10 bar pressure and an effective displacement of 550...

    Code: WK650-5-5/270P
    walter wk900 7 5 270p 1 hlavni
    Action Tip + Free gift
    FREEFREE €2 442,61 –10 %
    Cast iron piston compressor WK900-7-5/270P Input power 5.5 kW, suction capacity 880 l/min, pressure 10 bar, air receiver 270 l, voltage 400/50 V/Hz
    Stock (1 pcs)
    €1 816,82 excl. VAT
    €2 198,35 / pcs

    Horizontal cast-iron compressor with a 3W three-cylinder unit, power input 5.5 kW and delivery rate 740 l/min at 10 bar and 902 rpm. 270 l air receiver on wheels, 400 V, 3-year...

    Code: WK900-7-5/270P
    walter wk900 7 5 500p 1 hlavni
    Action Tip + Free gift
    FREEFREE €2 818,85 –10 %
    Cast iron piston compressor WK900-7-5/500P power input 5.5 kW, suction capacity 880 l/min, pressure 10 bar, air receiver 500 l, voltage 400/50 V/Hz
    Stock (2 pcs)
    €2 096,67 excl. VAT
    €2 536,97 / pcs

    Three-cylinder cast iron unit 5.5 kW with a displacement of 740 l/min at 10 bar on a horizontal air receiver 500 l. Double the air reserve and approximately half the number of...

    Code: WK900-7-5/500P
    walter wk650p plate 1 hlavni
    Action
    FREEFREE €835,26 –10 %
    Cast iron WK650 aggregate on base frame input power 4 kW, suction capacity 630 l/min, pressure 10 bar, without air receiver, voltage 400/50 V/Hz
    up to 14 days
    €621,27 excl. VAT
    €751,74 / pcs

    Cast-iron twin-cylinder 4.0 kW on a base frame, without pressure vessel. Displacement 550 l/min at low-speed 993 rpm – unit for continuous operation and custom assembly.

    Code: WK650-PLATE
    walter hwk1200 10 500p 1 hlavni
    Action + Free gift
    FREEFREE €3 674,05 –10 %
    Cast iron piston compressor HWK1200-10/500P power input 7.5 kW, suction capacity 1120 l/min, pressure 13 bar, air receiver 500 l, voltage 400/50 V/Hz
    up to 14 days
    €2 732,76 excl. VAT
    €3 306,64 / pcs

    Industrial four-cylinder 7.5 kW at 13 bar with a displacement of 960 l/min and a 500 l tank. Low-speed operation at 725 min⁻¹ for long duty cycles.

    Code: HWK1200-10/500P
    walter hwk1200 10 500p 15p 1 hlavni
    Action + Free gift
    FREEFREE €3 674,05 –10 %
    Cast iron piston compressor HWK1200-10/500P-15P input power 7.5 kW, suction power 1120 l/min, pressure 15 bar, air receiver 500 l, voltage 400/50 V/Hz
    up to 14 days
    €2 732,76 excl. VAT
    €3 306,64 / pcs

    Highest pressure and lowest speed in the entire range: 15 bar, displacement 900 l/min, four-cylinder 7.5 kW at 688 min⁻¹ and a 500 l tank. For testing laboratories and...

    Code: HWK1200-10/500P-15P
    walter hwk700 5 5 270p 1 hlavni
    Action + Free gift
    FREEFREE €2 434,30 –10 %
    Cast iron piston compressor HWK700-5-5/270P input power 4 kW, suction capacity 600 l/min, pressure 13 bar, receiver 270 l, voltage 400/50 V/Hz
    up to 14 days
    €1 810,64 excl. VAT
    €2 190,87 / pcs

    High-pressure version of the cast-iron twin-cylinder 4.0 kW: 13 bar, effective displacement 500 l/min, 270 l air receiver and slow-running 817 rpm. For technologies that do not...

    Code: HWK700-5-5/270P
    walter hwk700 5 5 270p 15p 1 hlavni
    Action + Free gift
    FREEFREE €2 434,30 –10 %
    Cast iron piston compressor HWK700-5-5/270P-15P 4 kW input power, 560 l/min suction power, 15 bar pressure, 270 l air receiver, 400/50 V/Hz voltage
    up to 14 days
    €1 810,64 excl. VAT
    €2 190,87 / pcs

    Maximum pressure of the WALTER series – 15 bar on a 4.0 kW cast iron twin-cylinder, delivery 470 l/min and a 270 l air receiver. For pressure tests and technologies requiring a...

    Code: HWK700-5-5/270P-15P
    walter vwk430 3 0 90ap 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 165,85 –10 %
    Cast iron piston compressor VWK430-3-0/90AP Input power 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air receiver 90 l, voltage 230/50 V/Hz
    up to 14 days
    €867,17 excl. VAT
    €1 049,27 / pcs

    The only vertical compressor in the WALTER range for standard 230 V: cast iron twin-cylinder 2.2 kW, displacement 340 l/min at 10 bar and a 90 l vertical receiver. It...

    Code: VWK430-3-0/90AP
    walter vwk430 3 0 90p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 165,85 –10 %
    Cast iron piston compressor VWK430-3-0/90P Power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air receiver 90 l, voltage 400/50 V/Hz
    up to 14 days
    €867,17 excl. VAT
    €1 049,27 / pcs

    Vertical entry-level WALTER design: cast iron twin-cylinder 2.2 kW with a displacement of 340 l/min at 10 bar and a 90 l vertical air receiver. Same unit as the horizontal...

    Code: VWK430-3-0/90P
    walter vwk550 4 0 90p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 484,91 –10 %
    Cast iron piston compressor VWK550-4-0/90P power input 3 kW, suction capacity 530 l/min, pressure 10 bar, air receiver 90 l, voltage 400/50 V/Hz
    up to 14 days
    €1 104,48 excl. VAT
    €1 336,42 / pcs

    WALTER series vertical compressor with a 3W three-cylinder unit: 3.0 kW, displacement 440 l/min at 10 bar and a 90 l vertical air receiver. The most powerful of the vertical...

    Code: VWK550-4-0/90P
    walter vwk650 5 5 270p 1 hlavni
    Action Tip + Free gift
    FREEFREE €2 193,38 –10 %
    Cast iron piston compressor VWK650-5-5/270P input power 4 kW, suction capacity 630 l/min, pressure 10 bar, air receiver 270 l, voltage 400/50 V/Hz
    up to 14 days
    €1 631,45 excl. VAT
    €1 974,05 / pcs

    Vertical version of the mid-range series: cast iron twin-cylinder 4.0 kW, displacement 550 l/min at 10 bar, 993 rpm and a 270 l vertical air receiver. The largest capacity...

    Code: VWK650-5-5/270P
    walter vwk900 7 5 500p 1 hlavni
    Action Tip + Free gift
    FREEFREE €2 480,60 –10 %
    Cast iron piston compressor VWK900-7-5/270P Input power 5.5 kW, suction capacity 880 l/min, pressure 10 bar, air receiver 270 l, voltage 400/50 V/Hz
    up to 14 days
    €1 845,07 excl. VAT
    €2 232,54 / pcs

    The most powerful vertical compressor in the WALTER range: a three-cylinder cast iron unit 5.5 kW with a delivery rate of 740 l/min at 10 bar, 902 rpm and a vertical receiver...

    Code: VWK900-7-5/500P
    walter wk1500 10 500p 1 hlavni
    Action Tip + Free gift
    FREEFREE €3 392,21 –10 %
    Cast iron piston compressor WK1500-10/500P power consumption 7.5 kW, suction power 1400 l/min, pressure 10 bar, air receiver 500 l, voltage 400/50 V/Hz
    up to 14 days
    €2 523,13 excl. VAT
    €3 052,99 / pcs

    The highest displacement in the WALTER range: a four-cylinder cast iron unit 7.5 kW with a displacement of 1 100 l/min at 10 bar and a 500 l air receiver. The speed of 768 rpm...

    Code: WK1500-10/500P
    walter wk430 3 0 200ap 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 315,68 –10 %
    Cast iron piston compressor WK430-3-0/200AP power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air receiver 200 l, voltage 230/50 V/Hz
    up to 14 days
    €978,60 excl. VAT
    €1 184,11 / pcs

    The largest capacity offered by the WALTER 230 V range: a 2.2 kW cast iron unit with a displacement of 340 l/min and a 200 l horizontal air receiver.

    Code: WK430-3-0/200AP
    walter wk430 3 0 200p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 315,68 –10 %
    Cast iron piston compressor WK430-3-0/200P power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, air receiver 200 l, voltage 400/50 V/Hz
    up to 14 days
    €978,60 excl. VAT
    €1 184,11 / pcs

    Entry-level cast iron platform 2.2 kW with the largest tank built by WALTER: 200 l capacity, delivery rate 340 l/min, 400 V. For workshops with intermittent but heavy demands.

    Code: WK430-3-0/200P
    walter wk550 4 0 270p 1 hlavni
    Action Tip + Free gift
    FREEFREE €1 705,91 –10 %
    Cast iron piston compressor WK550-4-0/270P power input 3 kW, suction capacity 530 l/min, pressure 10 bar, air receiver 270 l, voltage 400/50 V/Hz
    up to 14 days
    €1 268,86 excl. VAT
    €1 535,32 / pcs

    The pinnacle of the WALTER three-kilowatt class: a three-cylinder cast-iron unit with a displacement of 440 l/min and a 270 l air receiver. Designed for tyre services and...

    Code: WK550-4-0/270P
    walter wk1500p plate 1 hlavni
    Action
    FREEFREE €1 572,70 –10 %
    Cast iron WK1500 aggregate on base frame power input 7.5 kW, suction capacity 1 400 l/min, pressure 10 bar, without air receiver, voltage 400/50 V/Hz
    up to 14 days
    €1 169,78 excl. VAT
    €1 415,43 / pcs

    The most powerful unit of the WALTER range: four-cylinder 7.5 kW on a base frame without a pressure vessel, displacement 1 100 l/min at 768 rpm. For central distribution with...

    Code: WK1500-PLATE
    walter wk430p plate 1 hlavni
    Action
    FREEFREE €558,09 –10 %
    Cast iron WK430 aggregate on base frame power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, without receiver, voltage 400/50 V/Hz
    up to 14 days
    €415,12 excl. VAT
    €502,29 / pcs

    Standalone cast-iron twin-cylinder 2.2 kW on a base frame, without pressure vessel. Delivery rate 340 l/min at 10 bar, 400 V. For replacing the unit on an existing vessel or for...

    Code: WK430-PLATE
    walter wk430ap plate 1 hlavni
    Action
    FREEFREE €558,09 –10 %
    Cast iron WK430A aggregate on base frame power input 2.2 kW, suction capacity 420 l/min, pressure 10 bar, without air receiver, voltage 230/50 V/Hz
    up to 14 days
    €415,12 excl. VAT
    €502,29 / pcs

    The only WALTER unit for standard 230 V: a cast-iron twin-cylinder 2.2 kW on a base frame without a tank, displacement 340 l/min. For workshops and mobile assemblies without a...

    Code: WK430A-PLATE
    walter wk550p plate 1 hlavni
    Action
    FREEFREE €683,51 –10 %
    Cast iron WK550 aggregate on base frame power input 3 kW, suction capacity 530 l/min, pressure 10 bar, without air receiver, voltage 400/50 V/Hz
    up to 14 days
    €508,40 excl. VAT
    €615,16 / pcs

    Three-cylinder cast iron unit 3.0 kW on a base frame, without pressure vessel. Delivery rate 440 l/min at 10 bar and quieter operation with the 3W arrangement – for custom...

    Code: WK550-PLATE
    walter wk900p plate 1 hlavni
    Action
    FREEFREE €1 014,60 –10 %
    Cast iron WK900 aggregate on base frame power input 5.5 kW, suction capacity 880 l/min, pressure 10 bar, without air receiver, voltage 400/50 V/Hz
    up to 14 days
    €754,66 excl. VAT
    €913,14 / pcs

    Three-cylinder cast iron unit 5.5 kW on a base frame, without pressure vessel. Discharge 740 l/min at 902 rpm – source for central distribution or a second machine in a cascade.

    Code: WK900-PLATE

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    28 items total