YONGHENG 4500Psi PCP Air Compressor Pump - Fast Fill, Digital Control

In this review of the YONGHENG 4500Psi PCP Air Compressor pump, the bottom line is simple: it is aimed at serious airgun, scuba, and pressure-test users who need a fast, high-pressure fill and stable operation. The reviewer found the unit delivers on its main promise - filling a 6.8L tank to 300BAR in roughly 30 minutes - and does so with robust components and a clear digital control system. This makes it a practical shop or home workshop tool for anyone who regularly fills high-pressure cylinders and values reliability over portability.

Key Features

• 300BAR working pressure: Provides the high pressure needed for PCP air rifles and scuba tanks, supporting up to 4500PSI for demanding fills.
• Two-stage compression: The design and two water-oil separators improve stability and reduce wear for consistent performance over long fills.
• Fast filling time: The pump reaches 300BAR for a 6.8L tank in about 30 minutes, saving time for frequent users and reducing downtime.
• Digital control system: Built-in control and automatic shutdown at the set pressure simplify operation and improve safety during fills.
• Robust motor and alloy cylinder: A 1.8KW motor and alloy air cylinder deliver durable power and long-term service life for workshop use.
• Cooling requirement explained: The manual cooling water system supports continuous operation when supplied with adequate water and periodic changes.

Who It's For

This compressor is best for dedicated PCP air rifle owners, paintball and airsoft operators, dive hobbyists with small scuba tanks, and technicians who perform pressure-tightness or leakage tests. It suits users who run fills regularly and can provide the recommended cooling water during operation.

It is less suitable for casual users who need a lightweight, highly portable inflator; the unit requires cooling water and a power supply, so those wanting a tiny, grab-and-go electric pump should look elsewhere.

Pros & Cons

Pros

• High maximum pressure (300BAR / 4500PSI) meets PCP and scuba requirements reliably.
• Two-stage compression and water-oil separation improve stability during long fills.
• Fast flow and reasonable fill times reduce wait for a 6.8L tank to reach 300BAR.
• Digital control with auto-stop enhances safety and convenience.

Cons

• Requires an external water cooling supply and periodic water replacement for safe operation, which limits portability.
• Its power and cooling needs make it more suited to a fixed workshop location than field use.

Specifications

Working pressure	300BAR / 30MPA / 4500PSI
Charge pressure	30MPA
Motor power	1.8KW (110V 60Hz)
Air volume / flow	50L/min (upgraded note: 80L/min referenced)
Filling time	About 30 minutes to fill 6.8L to 300BAR
Oil standard	ISO VG 46 / AW 46

Our Verdict

The YONGHENG 4500Psi PCP Air Compressor is a strong choice for serious hobbyists and workshop technicians who need a dependable, high-pressure pump with digital control and two-stage compression. Its durable build and fast fill times deliver clear value when used in a fixed location with the required cooling water, though those requiring portability should consider other options.

Frequently Asked Questions

Does the unit stop automatically at target pressure?
Yes, the digital control system includes an automatic stop when the set pressure is reached for safer, hands-off fills.

How much cooling water is needed?
The manufacturer recommends preparing at least 10 liters of cooling water and replacing it every 30 minutes for optimal cooling effect during continuous operation.

How long to fill a standard 6.8L tank to 300BAR?
Expect roughly 30 minutes to fill a 6.8L tank to 300BAR based on the pump's two-stage design and flow rate.