Quick Summary
The GX PUMP GX E CS4 I is a portable PCP air compressor for high pressure filling, offering auto stop control, built in power conversion, and long cooling supported use.
What This Product Is Used For
The GX PUMP GX E CS4 I portable PCP air compressor is used for filling compatible high pressure air cylinders and paintball air systems up to the stated maximum pressure. Compared with a simpler 12V only compressor, this model includes a built in 110V to 12V DC converter, allowing use from a household outlet or a car battery. Its four stage compression system, water cooling, fan cooling, and auto stop pressure setting make it a more capable option for users who need controlled high pressure filling. Users choose it over simpler options because it combines strong output, longer continuous work potential, and more convenient power options.
Who This Product Is Best Suited To
This compressor is best suited to users who already understand high pressure filling and want a portable unit for PCP or paintball air applications. It suits users who need adjustable auto stop control, clear pressure monitoring, and the ability to fill small tanks quickly while following safe pressure limits carefully.
Key Benefits at a Glance
• 350W upgraded motor supports powerful high pressure filling
• Maximum filling pressure of 5800Psi or 40Mpa gives strong performance potential
• Four stage compression technology helps deliver stable operation
• Built in 110V to 12V DC converter allows home outlet or car battery use
• Water and fan cooling support up to 5 hours of continuous work
• Double pointer pressure gauge with two level auto stop setting improves safe control
• Built in oil water separator avoids needing an external separator
• 70db working noise level helps keep operation more manageable
Pros and Cons
Pros
• Built in converter makes home and vehicle power use easier
• Auto stop pressure setting adds important confidence during filling
• Water and fan cooling support longer working sessions
• Can fill a 0.5L tank from 3000Psi to 4500Psi in around 4 to 5 minutes
Cons
• Must only be used after checking the safe pressure of the cylinder being filled
• Requires distilled water or antifreeze setup before first use
Real World Performance and Day to Day Use
In real use, the GX PUMP GX E CS4 I is designed for users who need a compact but powerful high pressure compressor. The upgraded 350W motor and four stage compression technology support stable operation, while the maximum filling pressure is listed as 5800Psi or 40Mpa.
The cooling setup is one of its key practical features. The top mounted water tank and grease tank work with fan cooling to support up to 5 hours of continuous work, and the unit can fill up to a maximum 6.8L gas cylinder. The supplied filling figures are useful too, with a 0.5L tank from 3000Psi to 4500Psi taking around 4 to 5 minutes, and a 0.5L tank from 0 to 4500Psi taking around 14 to 16 minutes.
Choose this if you want a high pressure PCP or paintball air compressor with auto stop control, built in power conversion, and strong cooling support.
Skip this if you are not confident working with high pressure cylinders or cannot confirm the safe pressure rating before filling.
Why We Like This Product
The YPC Team likes this because it gives experienced users a more complete compressor setup with power flexibility, pressure control, and cooling support. It helps avoid the mistake of buying a 12V only compressor when home outlet use is needed, and it reduces regret by including auto stop control, a built in converter, and a built in oil water separator.
Comparisons With Similar Systems
Compared with portable PCP air compressor
Better when you want built in home power conversion and auto stop pressure control
Alternative better when you need a lighter compressor for occasional small fills
Compared with 12V PCP compressor
Better when you want to use either a car battery or household outlet
Alternative better when you only need vehicle power and want a simpler setup
Compared with paintball air compressor
Better when you want higher pressure capability, water cooling, and fan cooling
Alternative better when you need a lower pressure compressor for simpler paintball filling needs
Alternatives Worth Considering
12V PCP compressor
Home PCP compressor
Manual PCP pump
Paintball air filling station
Portable high pressure air compressor
Tips for Getting the Best Performance
Read the user manual carefully before turning on the compressor. Always confirm the maximum safe pressure of the gas cylinder before filling and do not over inflate it. Before first use, add about 500ml of neutral distilled water or antifreeze with a PH of about 7, using antifreeze only if freezing is a concern in winter. Do not turn the grease knob until after 6 hours of use, then turn it once for every 6 hours worked. When filling is complete, close the bottle valve first, then open the compressor bleed valve to release line pressure. All pressure must be released from the compressor before starting again.
Full Technical Specification
Brand
GX PUMP
Model
GX E CS4 I
Product Type
Portable PCP air compressor
Motor
350W upgraded motor
Compression Technology
Four stage compression technology
Maximum Filling Pressure
5800Psi
Maximum Filling Pressure
40Mpa
Cooling System
Water cooling and fan cooling
Continuous Work Time
Up to 5 hours
Maximum Cylinder Filling Capacity
6.8L gas cylinder
Noise Level
70db
Pressure Gauge
Double pointer pressure gauge
Auto Stop
Two level setting auto stop pressure
Power Supply
Car battery or household outlet
Built In Converter
110V to 12V DC converter
Oil Water Separator
Built in oil water separator
Water Requirement
About 500ml neutral distilled water or antifreeze before first use
Water PH
About 7
Oil Requirement
0.6 litres not stated
Filling Time
0.5L tank from 3000Psi to 4500Psi in 4 to 5 minutes
Filling Time
0.5L tank from 0 to 4500Psi in 14 to 16 minutes
Filling Time
6.8L bottle from 0 to 4500Psi in 2 hours and 40 minutes
Product Size
11.8 x 6.1 x 12.4 inch
Weight
29lb
Suitable Use
PCP and paintball air compressor filling
Safety Note
Confirm cylinder safe pressure before filling
Box Contents
GX PUMP GX E CS4 I Portable PCP Air Compressor
Buyer’s Guide
Buy this if you want easier high pressure filling with auto stop control and flexible home or car power use.
Do not buy this if a simpler lower pressure option would be safer for your experience level.
Frequently Asked Questions
What is the maximum pressure of the GX PUMP GX E CS4 I?
The GX PUMP GX E CS4 I has a maximum filling pressure of 5800Psi or 40Mpa.
Can this compressor be used from a household outlet?
The compressor has a built in 110V to 12V DC converter, allowing use from a household outlet or car battery.
Does the GX PUMP GX E CS4 I have auto stop?
The compressor includes two level setting auto stop pressure with a double pointer pressure gauge.
How long can this compressor work continuously?
The compressor is described as capable of up to 5 hours of continuous work with its cooling setup.
What cooling system does this compressor use?
The GX PUMP GX E CS4 I uses water cooling and fan cooling.
How fast can it fill a 0.5L tank?
The compressor can fill a 0.5L tank from 3000Psi to 4500Psi in around 4 to 5 minutes.
Does it need water before first use?
The compressor must be filled with about 500ml of neutral distilled water or antifreeze before first use.
Does it need an external oil water separator?
The compressor has a built in oil water separator that does not need to be replaced.
What should be done when filling is complete?
The bottle valve should be closed first, then the compressor bleed valve should be opened to release line pressure.
How heavy is the GX PUMP GX E CS4 I?
The compressor weighs 29lb.
