DJW300A High‑Pressure Breathing Air Compressor
DJW300A is a three‑stage compression, air‑cooled high‑pressure breathing air compressor, specifically designed to supply clean and safe high‑pressure breathing air. Featuring a compact structure and stable operation, it is widely used i···
产品介绍
DJW300A is a three‑stage compression, air‑cooled high‑pressure breathing air compressor, specifically designed to supply clean and safe high‑pressure breathing air. Featuring a compact structure and stable operation, it is widely used in firefighting, diving, industrial, marine, and emergency rescue applications, providing reliable support for filling breathing apparatus.

DJW300A High‑Pressure Breathing Air Compressor – Technical Specifications
| Parameter | Value (SI units / equivalent) |
|---|---|
| Model | DJW300A |
| Flow rate | 0.3 m³/min (300 L/min) |
| Rated working pressure | ≤ 35 MPa (≈ 350 bar) |
| Drive power supply | 380 V / 50 Hz (3‑phase) |
| Motor power | 7.5 kW |
| Compressor speed | 1800 RPM |
| Dimensions (L × W × H) | 1.33 × 0.59 × 0.57 m (1330 × 590 × 570 mm) |
| Weight | 137 kg |
| Number of cylinders | 3 |
| Compression stages | 3 |
| Drive type | Belt drive |
| Cooling method | Air‑cooled |
| Lubrication method | Forced oil pump lubrication |
| Shutdown mode | Automatic stop at preset pressure |
| Drainage method | Manual condensate drain |
| Filling connectors | G5/8 female thread × 2 ports (dual filling) |
| Interstage safety valves | 3 pieces (one per stage) |
| Oil sight glass | Included for visual oil level check |
| Filling hoses | 2 sets supplied |
| Auto‑stop feature | Yes – shuts off automatically when set pressure is reached |

DJW300A High‑Pressure Breathing Air Compressor – Key Highlights
🔹 High Output for Faster Filling
With a 300 L/min flow rate and 350 bar maximum pressure, filling times are significantly reduced. Whether for emergency firefighting response or dive preparation, this compressor boosts your operational efficiency.
🔹 Intelligent Safety for Peace of Mind
The built‑in automatic shutdown at preset pressure cuts power immediately when the set pressure is reached – no need for constant supervision, eliminating overpressure risks. Three interstage safety valves (one per stage) provide triple redundancy, safeguarding both equipment and personnel at every compression level.
🔹 Dual Filling for Maximum Flexibility
Standard G5/8 dual filling connectors and 2 filling hoses allow simultaneous filling of two cylinders independently. Switch effortlessly between single‑ or dual‑cylinder operation to suit different on‑site needs.
🔹 Easy Maintenance at a Glance
The visual oil sight glass lets you check oil level and condition in seconds, making daily inspections effortless. Forced oil pump lubrication ensures all moving parts remain optimally lubricated, extending service life and reducing long‑term maintenance costs.
🔹 Rugged, Compact, and Reliable
The three‑stage compression design, combined with belt drive and air cooling, delivers excellent thermal management in a compact footprint (1330×590×570 mm) and a weight of just 137 kg. Easy to move and stable in demanding environments – from fire stations and dive centres to industrial sites.
🔹 Consistent Performance Under Full Control
Powered by a 380V/50Hz motor rated at 7.5 kW and running at 1800 RPM, this unit offers ample, steady power. The manual condensate drain allows convenient removal of moisture on demand, ensuring your breathing air stays clean and dry.



Original Manufacturer · Customization with No Worries – Core Advantages of High‑Pressure Breathing Air Compressors
We Are the Original Factory – You Are Always Welcome to Visit
Our company integrates R&D, manufacturing, and sales, with complete compressor production lines and after‑treatment purification system production lines. From core component processing to final assembly, commissioning, and testing, everything is independently controlled. We are not middlemen – we offer factory‑direct pricing, transparent quality, and reliable delivery schedules.
We sincerely invite both new and existing customers to call for inquiries or visit our factory for inspection. You can witness the birth process of every compressor on‑site, and our professional engineers will accompany you throughout the tour to provide detailed explanations.
Customized on Demand – Flexibly Matched to Your Operating Conditions
Different application scenarios have varying requirements for power supply, control, pressure, and flow rate. We offer in‑depth customization services, with the main options including:
| Customizable Items | Available Options |
|---|---|
| Supply Voltage | 380V / 220V / 440V / 415V, etc.; 50Hz or 60Hz customizable |
| Drive Frequency | 50Hz / 60Hz and special variable frequency requirements |
| Control Mode | Manual control / Fully automatic start‑stop / PLC intelligent control / Remote monitoring |
| Working Pressure | 100bar – 500bar (10MPa – 50MPa), multiple stages optional |
| Displacement | 100L/min – 300L/min and other specifications available |
| Cylinder Filling Connectors | G5/8, M18×1.5, CGA, and other international standard interfaces optional |
| Cooling Method | Air‑cooled / Water‑cooled / Special heat dissipation solutions |
| Lubrication Method | Forced oil pump lubrication / Oil‑free lubrication (food‑grade / medical‑grade) |
| Installation Type | Stationary / Portable (with castors) / Vehicle‑mounted |
| Additional Functions | Automatic condensate drain, automatic condensate separation, air purification filtration system, etc. |
Whether you are in firefighting, diving, mining, medical, or industrial leak testing, we can provide tailor‑made technical solutions to ensure that the equipment perfectly suits your on‑site conditions.

我要咨询