In fact, I’d have to say that in comparing this Bosch CET4-20 compressor with other models we’ve used, it’s one of the more well-built products. They have thick walls that aren’t likely to give you any problems over time. The hoses used to route air from the tanks to the regulator and outlet fittings are rugged. You can set the limits of when the compressor will start to refill as well as the maximum pressure to which it will charge the tanks. The pressure switch cover was easily removed. It protects you from getting accidental burns should you venture too close. The major heat-prone areas of the motor are covered with ABS plastic. The oiled system ensured a quieter operation than typical Teflon coated or other oil-free systems. The air compressor pump looks to be ruggedly built. I try to drain my tanks daily here in Florida. After pulling the safety release valve to drop the tank pressure down to 20 PSI or below, this drain valve easily allows air and condensation to drain from both of the vertically-positioned tanks at the same time.
That provided them ample protection during use and meant that we were unlikely to accidentally damage them on the job.Īt the very bottom of the regulator assembly, you’ll find the tank drain valve. We were also pleased to find these sensitive controls and couplers partially recessed within the tanks. Having two outlet fittings means you can connect and use two pneumatic tools at once. The pressure regulator was tough to turn at first, but once we broke it free, it worked as expected. The pressure regulator control is between and below this assembly are the twin outlet fittings. They all but eliminate the need to pick it up, save unloading it from your truck or work van.īetween the tanks lie the twin pressure gauges, one for the tank PSI and the other for the outlet PSI. The wheels, however, make it easy to port this tool around. The entire compressor weighs nearly 85 pounds, making it quite heavy to lift. The first thing we did was attach them using the included bolt washers and nuts. The system comes with the wheels detached. It ships filled with oil and the cap includes an integrated dipstick for checking levels every 200 hours of use. You literally have tubular steel surrounding all of the sensitive parts. The air compressor is oil-lubricated to keep the parts from premature wear. The electric 2 horsepower engine sits within a steel roll cage which protects it from the hazards of jobsite use. The tanks are welded steel and are oriented vertically, which makes draining easy. The Bosch CET4-20W 4-gallon compressor comes in the expected Bosch Blue. This is no simple trim compressor! Bosch CET4-20W Build Quality That makes it one of the heavier units (by roughly ten pounds) we’ve tested. Because this is a heavier-duty model, be aware that it weighs in at around 85 pounds.
They also mount the tanks vertically, something unique that allows both tanks to drain simultaneously. Bosch’s take on this design improves it further by offering 4 gallons of air capacity and wheels for easy transport.
#Trades pro air compressor 4 gallon parts portable
It presents itself as an easily portable solution that packs a punch. While not exactly compact, the Bosch CET4-20W twin stack is convenient. Nothing, in our opinion, beats a nice compact twin-stack for all-around usefulness.
The latter provides a large volume of air. We’ve used many different air compressors over the years, from hot dog style to pancake and even 8-gallon wheeled models.
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