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When do you need a spray machine with a generator (GENSET)?

When a spray machine with a built-in generator and air compressor is the practical choice, and what to know before choosing one.

Published 2 min readTrusted Line technical team

When do you need a spray machine with a generator (GENSET)?

Hydraulic spray machines need 380 V three-phase power and an air compressor. On many sites — new builds not yet connected, farms, remote facilities — neither is available, so contractors hire a generator and compressor and haul and connect them on every job.

What is the GENSET?

The PUSMAK GENSET is a hydraulic spray proportioner built around a generator, with an integrated air compressor. According to the PUSMAK catalog:

  • It works in areas without three-phase power
  • Several integrated generator options are available, up to 45 kVA in total
  • It is easy to install on a truck, so it suits even rural areas
  • It is built for polyurea and foam, rated to 200 bar

When do you need one?

  • New sites: when insulation starts before permanent power is connected.
  • Remote sites: farms, desert facilities and infrastructure projects.
  • Mobile crews: when your team moves between many sites and you want a fixed truck-mounted rig.
  • Independence: when you don't want to rely on site power or its quality.

What to know before choosing

SpecificationGENSET
Weight1,425 kg
Dimensions (H × W × L)1.85 × 1.05 × 2.10 m
Maximum flow14.8 kg/min
Maximum hose length90 / 105 m
Preheater power11.2 / 12.4 kW

The paired values reflect different integrated machines — the catalog notes the generator is not limited to one model — so we specify the right machine and generator combination for your application in the quote. Check also that your truck can carry the weight and dimensions.

What if three-phase power is available?

Then a standard KPX is enough: the KPX 40 for polyurea or the KPX 50 for foam. If you only have 220 V and the job is small, see a 220 V spray foam machine.

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