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.
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Technical parameters of WALTER GK cast iron compressors |
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| 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.

Bestsellers
Product sorting
List of products
The WK430-3.0/100P reciprocating compressor with a cast iron twin cylinder unit and a 100 litre air tank delivers 3 HP, 10 bar pressure and an effective displacement of 340...
The WK430-3.0/100AP reciprocating compressor with a cast iron twin cylinder unit and 100 litre air receiver delivers 3 HP, 10 bar pressure and an effective displacement of 340...
The WK430-3.0/50AP reciprocating compressor with a cast iron two-cylinder unit and 230 V single-phase power supply offers 3 HP, 10 bar pressure and a 50 litre air tank, making...
The WK430-3.0/50P reciprocating compressor with a cast iron twin cylinder unit offers 3 HP, 10 bar pressure and a 50 litre airbox, making it the ideal solution for garages,...
The WK550-4.0/100P reciprocating compressor with a cast iron three-cylinder unit and a 100 litre air tank delivers 4 HP, 10 bar pressure and an effective displacement of 440...
The WK550-4.0/200P reciprocating compressor with a cast iron three-cylinder unit and a 200 litre air tank delivers 4 HP, 10 bar pressure and an effective displacement of 440...
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...
The WK900-7.5/270P reciprocating compressor with a cast iron three-cylinder unit and 270 litre air receiver delivers 7.5 HP, 10 bar pressure and an effective displacement of 740...
The WK900-7.5/500P reciprocating compressor with a cast iron three-cylinder unit and 500 litre horizontal air chamber delivers 7.5 HP, 10 bar pressure and an effective...
The WK550-4.0/270P reciprocating compressor with a cast iron three-cylinder unit and 270 litre air receiver delivers 4 HP, 10 bar pressure and an effective displacement of 440...
Efficient and high quality cast iron aggregate together with the engine on the base frame. Compressed air aftercooler . The machine includes a WK1500 unit with a 7.5 kW 400V...
Piston compressor HWK1200-10/500 is equipped with a cast iron four-cylinder unit and a 500-liter horizontal air receiver. This model delivers 10 HP, a maximum pressure of 13 bar...
Piston compressor HWK1200-10/500 is equipped with a cast iron four-cylinder unit and a 500-liter horizontal air receiver. This model offers a 10 HP power output, maximum...
Piston compressor HWK700-5-5/270P is equipped with a cast iron two-cylinder unit and a 270-liter horizontal air receiver. This model provides a power output of 5.5 HP, a maximum...
Piston compressor HWK700-5-5/270P is equipped with a cast iron two-cylinder unit and a 270-liter horizontal air receiver. This model provides a power of 5.5 HP, a maximum...
The VWK430-3.0/90AP reciprocating compressor with a cast iron twin cylinder unit and 90 litre vertical air chamber delivers 3 HP, 10 bar pressure and an effective displacement...
The VWK430-3.0/90P reciprocating compressor with a cast iron twin cylinder unit and 90 litre vertical air chamber delivers 3 HP, 10 bar pressure and an effective displacement of...
The VWK550-4.0/90P reciprocating compressor with a cast iron three-cylinder unit and a 90 litre vertical air chamber delivers 4 HP, 10 bar pressure and an effective displacement...
The VWK650-5.5/270P reciprocating compressor with a cast iron twin cylinder unit and 270 litre vertical air chamber delivers 5.5 HP, 10 bar pressure and an effective...
The VWK900-7.5/500P reciprocating compressor with a cast iron three-cylinder unit and a 500 litre vertical air chamber delivers 7.5 HP, 10 bar pressure and an effective...
The WK1500-10/500P reciprocating compressor with a cast iron four-cylinder unit and 500 litre horizontal air chamber delivers 10 HP, 10 bar pressure and an effective...
The WK430-3.0/200AP reciprocating compressor with a cast iron twin cylinder unit and 200 litre air receiver delivers 3 HP, 10 bar pressure and an effective displacement of 340...
The WK430-3.0/200P reciprocating compressor with a cast iron twin cylinder unit and 200 litre air tank delivers 3 HP, 10 bar pressure and an effective displacement of 340 l/min,...
Efficient and high quality cast iron aggregate together with the engine on the base frame. Compressed air aftercooler . The machine includes a WK430 unit with a 400V motor with...
Efficient and high quality cast iron aggregate together with the engine on the base frame. Compressed air aftercooler . The machine includes a WK430 unit with a 230V motor with...
The WK550-PLATE reciprocating compressor with a cast iron three-cylinder unit delivers 4 HP, 10 bar pressure and an effective displacement of 440 l/min, making it the ideal...
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...
The WK900-PLATE reciprocating compressor with a cast iron three-cylinder unit delivers 7.5 HP, 10 bar pressure and an effective displacement of 740 l/min, making it the ideal...
