Medium Duty GX Pump
GX Pump CS4
5,800 PSI max · Water + fan cooled
12V120V Auto-stop
Water-cooled, 4-stage, 350W, 5800 PSI. Auto-stop, hour meter, rated for 5 hours continuous. 12V with a 110V converter included.
Yong Heng LCD Auto-Stop
The classic Yong Heng design with an LCD gauge and auto-stop. 110V, two-stage, fast, but it needs an external bucket of cooling water.
Overview
This is the old-school Yong Heng layout updated with an LCD display that lets you preset the shut-off pressure and watch the temperature. It's a 110V, two-stage compressor rated at 4500 PSI (300 bar) and 50 L/min, with two built-in water/oil separators. It's fast: the seller rates it at about 30 minutes to fill a 6.8L tank to 300 bar. The catch is cooling. The pump circulates water from a bucket you supply, and the listing says to change that water every 30 minutes and never start it without water ready. Amazon lists the brand as TUXING and it's sold through Tuxing's store, which tells you how closely these offshore brands are related.
"This is the design I remember: fast fills, but you babysit a bucket of water (ice water on hot days), and older units made the air smell like oil. The auto-stop and separators help. If you don't want to manage a water bucket, a self-contained water-cooled unit like the GX CS4-I is a lot less hassle."
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5,800 PSI max · Water + fan cooled
12V120V Auto-stop
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5,800 PSI max · Water + fan cooled
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