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High-Pressure Breathing Compressors
The 4500psi Portable Electric Scuba Diving Air Compressor is a high-pressure breathing air compression system designed to compress atmospheric air to 300 bar (4500 psi) for filling scuba tanks, SCBA (self-contained breathing apparatus) cylinders, PCP air rifles, paintball tanks, and other high-pressure vessels.
This unit features a 680L/min flow rate, delivering rapid, efficient cylinder filling for both recreational and professional applications. It is a four-stage reciprocating piston compressor with an integrated filtration system that removes oil, water vapor, and other contaminants, producing clean, breathable air that meets international breathing air quality standards.
The compressor features a box-type enclosed structure that is dust-proof, noise-reducing, and portable, making it suitable for applications requiring a large flow of clean, high-pressure air. It is equipped with an intelligent digital control system that monitors pressure, temperature, and other parameters in real time with overload protection.
Product Parameters
| Model | GDR-680E |
| Flow | 680/18 (L/min/cfm) |
| Pressure | 225~350 bar |
| Power | 15kW/20HP |
| Speed | 1400RPM |
| Compression stage | 4 |
| Oil amount | 5 L |
| Operating Temp | 5~ +45°C |
| Dimension | 1500*860*1550mm |
| Weight | 410kg |
Product features
1. High-Flow Efficiency
680L/min displacement enables rapid cylinder filling, reducing downtime for dive shops, fire departments, and commercial operations.
2. Multi-Stage Filtration
3-stage filtration system (particulate, oil mist, CO catalytic) delivers clean breathing air, compliant with EN international standards.
3. Quiet & Enclosed Design
Built-in noise reduction and dustproof cabinet ensure low-noise operation and reliable performance in outdoor conditions.
4. Intelligent Controls
Digital display monitors pressure and temperature in real time; overload protection and auto‑shutdown at preset pressure for safe operation.
5. Portable & Compact
Heavy‑duty wheels and towing device enable easy transport; compact size fits in a car boot.
6. Robust Construction
High‑power motor, durable components, and advanced water/fan cooling for extended service life.
7. Flexible Configuration
Voltage: 220–440V, 50/60Hz, 3‑phase; Pressure: 225–350 bar; Flow: 680L/min.
8. Wide Application
Compatible with scuba tanks, PCP air rifles, paintball tanks, SCBA cylinders, and high‑pressure industrial uses.
Diving – dive shops, resorts, commercial ops, training centers
Fire & Rescue – SCBA filling, mine rescue, emergency response
Medical – hyperbaric oxygen, hospital air systems
Industrial – petrochemical, power plants, leak testing
Military – field supply, naval diving, shipbuilding
Sports – PCP rifles, paintball, airsoft
Automotive & Marine – racing pneumatics, on‑board boat compressors
FAQ
Q1: How fast is 680L/min?
A: 6.8L tank fills 0→300 bar in ~30 min; 0.5L tank in ~5 min.
Q2: Is the air breathable?
A: Yes – with proper filter maintenance. 3‑stage filtration meets EN standards.
Q3: What oil to use?
A: Standard oil for general use; food‑grade for breathing air applications.
Q4: Break‑in required?
A: Run unloaded for ~30 min before first use.
Q5: Cooling time?
A: Built‑in water + fan cooling; stop if temp exceeds 75°C.
Q6: Max tank size?
A: Handles standard scuba tanks (6.8L, 11L) and larger commercial cylinders.
Q7: Electrical requirements?
A: 220–440V / 50‑60Hz / 3‑phase. Other voltage options available.
Q8: Maintenance?
A: Change oil, replace filters, check cooling water, inspect valves/hoses.
Q9: Safety features?
A: Overload protection, safety valve, auto‑shutdown, burst discs.
Q10: Warranty?
A: 1 year standard.
Q11: Delivery?
A: Lead time 7–15 days, FOB/CFR/CIF/EXW available.
