It is roughly the level of normal conversation or a busy office. A conventional piston compressor of similar output typically runs 85–95 dB(A), which is the range where hearing protection becomes necessary. The SP-15S can be used in the same room as other people without raised voices.

It is built for intermittent duty: the auto start/stop switch refills the tank and rests. That covers instrument air, blow-gun cleaning and intermittent tool use well. For a continuous, multi-outlet supply feeding several stations at once, choose a larger model in the Nantong Shengqiang range — we will size it against your total consumption.

The pump introduces no oil into the air path at all, which removes oil mist as a contaminant. Air still carries ambient humidity and dust, so for critical instrument or optical work pair it with the appropriate dryer or particulate filter — the compressor simply does not add oil to the problem.

Quite a lot. The 15 L receiver stores air so the motor runs in short bursts instead of continuously. Because the pump is the noisy part, a buffer tank directly reduces the amount of time you hear it.

No — 1450W on a standard 220V/50Hz single-phase socket. The built-in digital voltage display shows supply quality live, and the dual capacitor protects against overload, which is useful in older buildings with variable mains.

Drain condensate from the tank, keep the intake filter clean and check the silencer occasionally. There is no oil to change, no belt to tension and no lubrication schedule.

Yes. OEM private labelling, custom colours and packaging are supported, with compact export cartons designed to maximise container loading for distributors.