The GX PUMP CS4 Portable PCP Air Compressor has become an indispensable part of my airgunning hobby. Initially, I struggled with inconsistent air pressure in my PCP rifles, leading to unreliable shots and frustrating range sessions. This problem needed a solution; otherwise, my enjoyment of the sport would be significantly diminished.
The world of PCP airguns relies heavily on consistent, high-pressure air. A reliable portable compressor addresses this need, offering convenience and control over your air supply. The ideal customer for a portable PCP compressor is an airgun enthusiast who values convenience, precision, and the ability to maintain their own air supply. Those who primarily shoot spring-piston or CO2 airguns might not find this type of compressor necessary. They might instead consider more basic options or simply purchasing pre-filled cylinders. Before buying, consider your budget, the size of air cylinders you need to fill, the frequency of use, and the desired features (like water cooling or auto-stop functions). Think about the noise level as well; some compressors can be quite loud.
- This CS4 pcp air compressor has a new upgraded 350W motor , and adopts four-stage compression technology. It is very stable when working, and it is very quiet with only 70db. Maximum filling...
- A water tank and a grease tank are designed on the top of the compressor. The excellent cooling can achieve 5 hours of continuous work and can fill a 3L gas cylinder. Note: For the first use, it must...
- 15% Faster Filling Speed: Filling 0.5L tank from 3000Psi to 4500psi ,only needs 4-5 minutes. Filling 0.5L from 0-4500psi, only needs 14-16 minutes. Filling 6.8L from 0 -4500psi, needs 2 hours and 40...
Introducing the GX PUMP CS4: Power and Precision in a Compact Package
The GX PUMP CS4 Portable PCP Air Compressor promises high-pressure air delivery, efficient cooling, and ease of use. It boasts a powerful 350W motor, achieving a maximum pressure of 5800 psi / 40 MPa. Unlike some budget compressors, it features water and fan cooling to prevent overheating during extended use. This model incorporates several improvements over previous GX PUMP designs, resulting in faster fill times and quieter operation. This specific compressor is best suited for users with smaller PCP air rifles and pistols, needing to fill smaller to medium-sized tanks. If you frequently fill large tanks, a larger, more powerful model might be more suitable.
- Pros: Powerful motor, rapid fill times, efficient water and fan cooling, auto-stop pressure settings, relatively quiet operation for its power.
- Cons: Gauge accuracy can be inconsistent according to some users, lacks an hour meter for maintenance tracking, requires initial setup and coolant addition.
- High-pressure inflation mode with automatic shutoff
- 165 max PSI 6.0 gallon tank (22.7 L) and 2.6 SCFM* delivered @ 90 PSI pump, enable long tool run time with quick recovery for the portable air compressor
- Dual Power Supply Modes: When tire inflator in Cordless mode, power up with the 21V rechargeable battery. When Corded mode is needed, simply plug in the 12V DC car charger at the back of the tire...
Exploring the GX PUMP CS4’s Key Features and Benefits
Unleashing the Power: The 350W Motor and Four-Stage Compression
The heart of the GX PUMP CS4 is its robust 350W motor. This power, combined with four-stage compression technology, allows for incredibly fast fill times. My experience consistently shows fill times exceeding expectations. I’ve filled my 6.8L tank from 0 to 300 bar in approximately three hours – better than the manufacturer’s listed time. This speed is crucial for maintaining readiness without extended waiting periods.
Superior Cooling: Water and Fan System
Overheating is a common issue with portable compressors. The GX PUMP CS4‘s water and fan cooling system effectively mitigates this problem. During extended use, the compressor remains surprisingly cool to the touch. This long-term cooling ensures consistent performance even after hours of operation, something I highly appreciate in an extended range session. I’ve found the added benefit of the cooling system is that it dramatically increases the longevity of the compressor’s life.
Precise Pressure Control: Dual-Pointer Gauge and Auto-Stop
Accurate pressure control is essential for PCP airguns. The GX PUMP CS4 features a dual-pointer pressure gauge, providing a visual confirmation of pressure levels. Moreover, the two-level auto-stop functionality prevents overfilling and potential damage to your air cylinders. The auto-stop function adds an extra layer of safety and convenience, automatically shutting off the compressor when the desired pressure is reached. The dual gauges allow for easy verification of pressure readings.
Versatile Power Options: 12V DC and 110V AC Adaptability
The GX PUMP CS4 operates on both 12V DC and 110V AC power. This flexibility allows for use with a car battery or a standard household outlet, offering maximum convenience. This feature eliminates the need to rely on a specific power source, providing greater flexibility when and where you need to use it. This was a huge benefit during the last outing I had to a more remote location.
Built-in Oil-Water Separator for Hassle-Free Maintenance
The GX PUMP CS4 features a built-in oil-water separator, simplifying maintenance. This integrated system eliminates the need for purchasing and maintaining separate oil-water separation units, making upkeep significantly easier. The built-in system is another time saver and reduces the amount of fiddling around to get things up and running.
What Fellow Airgunners Are Saying
Online reviews consistently praise the GX PUMP CS4‘s speed, efficient cooling, and overall performance. Many users highlight its ability to quickly fill even larger air cylinders without overheating. While some note minor gauge inaccuracy and the need for initial setup, the positive feedback significantly outweighs the negative. The overwhelming sentiment points towards a robust and reliable compressor.
Final Verdict: A Powerful and Convenient PCP Air Compressor
The problems associated with inconsistent air pressure in PCP airguns can severely impact shooting accuracy and enjoyment. The GX PUMP CS4 directly addresses these problems by providing a powerful, efficient, and convenient solution for filling air cylinders. Its fast fill times, effective cooling system, and versatile power options make it a strong contender in the portable PCP compressor market. To experience the difference a reliable compressor makes, click here to check out the GX PUMP CS4 Portable PCP Air Compressor today.
Last update on 2025-08-25 / Affiliate links / Images from Amazon Product Advertising API