High Pressure Air Compressor Pump 4500Psi/30MPa - Fast PCP Fill

In this review of the YONG HENG 4500Psi/30Mpa high pressure air compressor pump, the bottom line is simple: it is a workhorse electric PCP compressor best for experienced users who need fast, repeatable fills to 300BAR. The reviewer found the built-in LCD digital control and auto-stop feature make pressure presetting and monitoring straightforward, while the two-stage compression and dual water-oil separators deliver steady performance during repeated fills. It requires attention to the cooling system-prepare sufficient cooling water before each run-but when used as intended it fills tanks quickly and reliably.

Key Features

• Digital Control System: The LCD display lets users preset target pressure and monitor temperature so fills stop automatically at the desired level.
• High Working Pressure: Rated to 300BAR (30MPa/4500PSI), the pump supports high-pressure PCP air rifle tanks and other demanding applications.
• Quick-fill Performance: With a 2800r/min motor and 50L/min flow, it can fill a 6.8L tank to 300BAR in about 30 minutes for fast turnaround between sessions.
• Two-stage Compression and Filtration: Dual-stage compression plus two water-oil separators improve stability and reduce contaminants in the output air during repeated use.
• Cooling System: Water and fan cooling keep the unit running smoothly when cooling water is replenished every 30 minutes as required.
• Wide Application: Suitable for PCP air rifles, paintball, scuba pre-fills, tire checks, and pressure-tight tests across automotive and outdoor uses.

Who It's For

The YONG HENG pump suits hobbyists and professionals who regularly fill high-pressure tanks and need a reliable electric solution with precise pressure control and quick-fill capability. It is particularly useful for shooters running multiple PCP tanks, dive or rescue teams needing portable high-pressure fills, and technicians performing pressure-proof tests.

It is less suitable for casual users who will only occasionally inflate tires or small items, or for people who cannot provide the required cooling water and who prefer fully maintenance-free compressors. Novice users should read the safety and cooling instructions carefully before use.

Pros & Cons

Pros

• High maximum pressure up to 300BAR enables demanding PCP and test applications.
• Auto-stop LCD control simplifies presetting and protects tanks from overfill.
• Fast fill rate and two-stage design maintain performance across multiple fills.
• Built-in water-oil separators reduce contamination risk in the output air.

Cons

• Requires continuous cooling water replenishment every 30 minutes, which adds setup and monitoring needs.
• Relatively heavy unit weight means it is less convenient for frequent transport compared with smaller inflators.

Specifications

Working Pressure	300BAR / 30MPa / 4500PSI
Power Rating	1800W
Flow Rate	50L/min
Motor Speed	2800 r/min
Cooling	Water and fan cooling (replace water every 30 min)
Compression Stage	Two-stage with two water-oil separators
Net Weight	19.2 KG (110V) / 17 KG (220V)

Our Verdict

The YONG HENG 4500Psi/30MPa compressor is a solid choice for regular PCP users and professionals who need fast, precise fills to high pressure. Its LCD auto-stop and two-stage design provide reliable control and cleaner output air, and the fast fill time offers clear workflow benefits, though users must plan for cooling water and the unit's weight. For those who need consistent high-pressure fills, it offers good value and capability.

Frequently Asked Questions

How long to fill a 6.8L tank to 300BAR?
About 30 minutes under normal operating conditions with proper cooling water and stable power.

Does it require any filtration?
Yes, it has built-in water-oil separators to reduce contaminants, but users should follow maintenance guidance to keep separators effective.

What cooling is needed?
Use the water and fan cooling system and replace cooling water every 30 minutes; never start the pump without enough prepared cooling water.