| Quantity: | |
|---|---|
Product Overview
The GDR-320 Series Portable High Pressure Breathing Air Compressor is a high-capacity, piston-driven air compression system engineered for professional dive operations, fire rescue departments, and medium-sized breathing air filling stations. With a maximum working pressure of 330 Bar (4,800 PSI) and an impressive filling rate of 320 L/min, this unit delivers breathable, clean air at nearly three times the speed of standard portable compressors.
Designed for continuous operation in demanding environments, the GDR-320 is the ideal choice for dive schools, commercial diving operations, fire departments, and paintball fields with high-volume air demands. Its 3-stage piston compression system, industrial-grade components, and CE certification ensure durability, safety, and compliance with international standards. Every unit is 100% factory tested before shipment, with video inspection available upon.
Why Choose This 320 L/min Compressor?
High-Capacity Filling
320 L/min filling rate fills a 6.0L scuba tank from 0 to 330 Bar in ~6 minutes – nearly 3x faster than standard portable units. Reduced wait times and higher throughput for dive shops and paintball fields.
Built for Continuous Operation
Engineered for heavy-duty, continuous use in professional environments – ideal for dive schools, commercial diving, and fire rescue stations.
Versatile Power Options
Available in 220V, 380V, 415V, and 600V, with single-phase and three-phase options. We match your local power – no transformer needed.
Built to Last
3-stage piston system with aluminum alloy cylinders, heavy-duty bearings, stainless steel valves, and industrial-grade cooling fins for reliable performance even in warm environments.
Clean, Breathable Air
Multi-stage filtration removes moisture, oil, and particulates. Includes coalescing filter, activated carbon filter, automatic condensate drain, and pressure relief valve.
100% Factory Tested
Each unit undergoes pressure, leak, and performance tests before shipment. Video inspection available upon request.
CE Certified
Compliant with European safety, health, and environmental standards – providing peace of mind in regulated markets.
Product Parameters
| Model | GDR-320L |
| Max. Pressure | 350 bar (300bar Dive 225 Bar Firefighting 330 Bar(adjustable) |
| Flow Rate | 320L/min |
| Cooling Method | Air cooling |
| Filling cylinder time | 0 to 330 Bar in approx. 6 minutes |
| Driven | Electric motor |
| Power | 7.5kw/10hp |
| Dimensions | 1300*640*700mm |
| Weight | 138kg |
| Compression stage | 3 |
| Lubricating type | Splash lubrication |
| Amount of lubricating oil | 2.8L |
| Opertating temperature | 5- 45 °C |
| Certification | CE certified |
| Applications | Dive Shops / Commercial Diving / Fire Rescue / Paintball Fields / Industrial Use |
Who Is This For?
Dive Shops & Rental Centers
High-volume tank filling – serve more customers with less wait time.
Commercial Diving Operations
Reliable on-site air supply for professional diving projects.
Fire & Rescue Departments
Rapid refilling of breathing apparatus for emergency response.
Paintball & Airsoft Fields
High-capacity filling for busy fields – keep players on the field.
Industrial & Workshop Use
High-pressure air for cleaning, pneumatic tools, and testing.
Why Choose Us?
Shanghai Rocky Machinery Co., Ltd. is a professional manufacturer and exporter specializing in the R&D, production, and sales of high-pressure air compressors, with over 18 years of industry experience. We focus on piston-type high-pressure compressors with pressure ranges from 30 bar to 450 bar.
Our Strengths
Experienced Team:Our engineering team possesses decades of combined experience in high-pressure compressor technology.
Strict Quality Control:Every unit undergoes rigorous quality inspection and testing before shipment to ensure reliable performance.
Global Reach:Our products are exported to more than 50 countries and regions, including the United States, Europe, Southeast Asia, and the Middle East.
Customization Services:We offer OEM/ODM services to meet specific customer requirements.
Certifications
CE Certified and ISO 9001:2015 Certified
Production & Quality
Quality Assurance
Factory Area: 20,000 m² 100% pressure testing before shipment
Monthly Output: 2,000 units All components sourced from certified suppliers
Lead Time: 10 working days for standard models Final inspection report provided with each shipment
After-Sales Service
Warranty: 12 months from the date of shipment
Technical Support: Free lifetime technical consultation via email, phone, or video call
Spare Parts Supply: Genuine spare parts available for all models
Training Services: Operation and maintenance manuals provided; video training available upon request
FAQs
Q1: What is the maximum pressure this compressor can reach?
A: The GDR-320 can reach a maximum working pressure of 330 Bar (4,800 PSI). For standard scuba diving applications, we recommend setting the auto-shutoff at 225 Bar.
Q2: How fast can this compressor fill a scuba tank?
A: A standard 6.0L scuba tank fills from 0 to 330 Bar in approximately 6 minutes – nearly three times faster than standard portable units.
Q3: Is this compressor suitable for continuous operation?
A: Yes. The GDR-320 is specifically designed for continuous, heavy-duty operation in professional environments such as dive shops, commercial diving operations, and fire rescue stations.
Q4: What voltage do I need?
A: We offer multiple voltage configurations. Please tell us your local voltage (e.g., 220V single-phase, 380V three-phase) and we will supply the correct unit.
Q5: Is the air safe to breathe?
A: Yes. The GDR-320 is equipped with a multi-stage filtration system that removes oil, moisture, and particulates, delivering breathable air that meets industry standards.
Q6: What is the warranty period?
A: We offer a 12-month warranty from the date of shipment, covering manufacturing defects in materials and workmanship.
Q7: Do you provide spare parts?
A: Yes. We supply a complete range of spare parts including filter elements, valves, seals, and maintenance kits.
Q8: Can I get a customized version with my logo?
A: Yes. OEM branding and custom color options are available for orders of 5+ units.
Q9: How is the compressor shipped?
A: Each unit is packed in a sturdy wooden case with foam padding to ensure safe transport. We offer sea freight, air freight, and express shipping options.
Q10: Do you provide installation support?
A: Yes. We provide a detailed user manual with step-by-step installation instructions. Our technical team is also available for remote support via video call or email.
