Cast iron piston compressor VWK430-3-0/90AP input power 2.2 kW, intake 420 l/min, pressure 10 bar, air receiver 90 l, voltage 230/50 V/Hz

Product detailed description

WALTER VWK430-3,0/90AP Vertical Cast-Iron Piston Compressor - 230 V

The VWK430-3,0/90AP is the only machine out of 28 models in the WALTER range that is both vertical and designed for a standard single-phase 230 V / 50 Hz network. The 2V cast-iron twin-cylinder has a power input of 2.2 kW, intake of 420 l/min, an effective delivery of 340 l/min at 10 bar and operates at 1,276 rpm. The 90 l tank is vertical.

It is a solution to two limitations at once: lacking a three-phase connection and having no space to place the machine. There are a total of 5 models in the 230 V range, but the other 4 are horizontal or without a tank – this is the only one that stands upright and saves floor space. Warranty of 3 years after registration at waltercesko.cz.

Configuration of this machine

• Cast-iron unit — 2V · 1,276 rpm · single-stage compression
• Pressure vessel — 90 l · vertical
• Vertical design — Vertical tank — smaller floor footprint
• For standard 230 V socket — Does not require a three-phase connection
• Standard pressure of 10 bar for common pneumatic tools

Why choose this model

Who is it for

It is bought by a craftsman in a rented garage, an extension, or a home workshop, where only a standard single-phase network is available and installing three-phase power would require interfering with the entire building's wiring. Typically a carpenter, fitter, sole-trader auto mechanic, or hobbyist metalworker. The machine is placed against the wall, plugged into a dedicated socket, and stays there – 340 l/min covers blow-off, ratchets, staplers, and inflation.

Typical applications

• Blow guns and tyre inflation in a home or garage workshop
• Staplers and nail guns for furniture assembly and carcass production
• 3/8" pneumatic ratchet and impact wrench for short tasks, where compensating for the peak from the tank is sufficient
• Spray guns for smaller areas – doors, parts, furniture carcasses
• Cleaning machines, extraction ducts, and filters with compressed air
• Pneumatic clamping of a simple jig on a bench

When to choose a different model

What the figures tell you — calculated values

The values are calculated and are meant for comparing the models with each other, not as guaranteed figures.

Design and technology

Related models and alternatives

Frequently asked questions

Do I really plug it into a standard socket?

The connector is single-phase 230 V, but any socket on a shared circuit is insufficient. The 2.2 kW motor has a high starting current, so it requires its own circuit, a circuit breaker with a slow characteristic (usually 16 A, char. C) and a supply line dimensioned according to its length. The exact value can be found in the machine manual, and you should leave the installation to an electrician.

Does the 230V version have lower performance than the three-phase one?

No – the intake of 420 l/min, delivery of 340 l/min, pressure of 10 bar, and speed of 1,276 rpm are identical for both versions. The practical difference lies in the starting behaviour and the fusing requirements, not in the volume of air delivered to the system.

Can I power it from an extension lead?

Under no circumstances from a wound drum reel – the loop acts as an inductor and heats up; with the compressor's starting current, this will end in burnt insulation or a tripped breaker. If an extension is unavoidable, use a fully unwound cable with a sufficient cross-section according to the length and consult an electrician.

How much smaller is it compared to the horizontal 230V version?

The vertical tank reduces the footprint to approximately half compared to the horizontal design of the same class, and the machine can be placed against a wall. However, it increases in height, so please measure the clear height of the workshop and the door opening before ordering. Exact dimensions can be found in the technical specifications of the product.

How many 230 V models are in the WALTER range?

Five, all based on the same 2.2 kW unit: horizontal versions with 50, 100 and 200 l, a separate unit on a base frame, and this vertical version with 90 l. You can recognise them by the letter A in the code – without the A, the machine is three-phase 400 V.

The machine comes with a 3-year warranty after registration with the importer. Warranty terms, the maintenance schedule and a comparison of all 28 models are in the category WALTER cast-iron piston compressors.