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Comparison Ring RAC640 vs Ring RAC635

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Ring RAC640
Ring RAC635
Ring RAC640Ring RAC635
from $48.84 up to $63.73
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Main
Two motors for different tasks. Electronic pressure gauge with backlight. Powerful LED flashlight. The quality of materials and assembly.
Type
compressor /twin-engine/
compressor
Power source
12 V
12 V
Specs
Pressure gaugedigitaldigital
Max. pressure7 Atm7 Atm
Performance
30 L/min /for inflating mattresses: 200-300 L/min/
30 L/min
Current consumption10 А10 А
Power85 W120 W
Connectioncigarette lightercigarette lighter
Power cord length3 m3.5 m
Hose length0.53 m0.7 m
General
Autostop function
Lamp
Cover/case
Size280x125x270 mm167x88x193 mm
Weight2 kg1.2 kg
Added to E-Catalogoctober 2015october 2015

Power

Rated power consumed by the compressor during operation.

This parameter primarily affects the features of connecting the unit to the on-board network through the cigarette lighter socket. Such a socket has restrictions on load power, and these restrictions are different for different cars; and even in the same car, different connectors — the cigarette lighter itself and a separate socket of the same format — can differ in allowable power. However, most of these connectors can easily cope with units with a power of up to 100 – 120 W; but if you get a more powerful compressor, you should clarify the possibility of using it with a specific cigarette lighter (the easiest way to do this is according to the documentation for the car). If the device is planned to be powered through "crocodiles" or from a 230 V socket (see "Connection"), you can not pay much attention to the power consumption.

Also, more powerful compressors, usually, have a greater capacity and/or maximum pressure, but there is no strict relationship here.

Power cord length

The length of the cord with which the compressor is connected to a power source — a standard car socket DC 12V (so-called cigarette lighter) or directly to the battery terminals. It is believed that the length of the cable should not be less than two metres to avoid inconvenience in operation.

Hose length

The length of the hose through which air is pumped into the tyre. The larger it is, the more convenient the device is to use. But it is rare that the compressor is left far from the wheel, especially if a pressure gauge is placed on the device, which must be periodically checked. For domestic use in cars, a one and a half metre long hose is enough. Powerful and performant models can be equipped with a hose of 7 metres or more, but these are more solutions for commercial use in car services.

Autostop function

Function that automatically stops operation when a sufficient level of tyre pressure is reached. Usually, the pressure at which the auto-stop is triggered can be set at the discretion of the user.

This function greatly simplifies the work with the pump: the risk of overfilling the tyre is reduced to almost zero, while the user does not need to monitor the pumping process, because the pump will stop at the right time. On the other hand, hitchhiking significantly affects the price. It is found only in electric compressors (see "Type").
Ring RAC640 often compared
Ring RAC635 often compared