DJW680A Breathing Air Compressor

The DJW680A adopts a four-cylinder, four-stage compression structure, with a rated flow of 680 L/min and a maximum pressure of ≤420 bar. It is equipped with an 11 kW, 380 V/50 Hz motor and operates at 1,400 rpm. The unit features belt drive, air cooling, oil pump lubrication, and an oil filtration system, providing a stable structure suitable for fixed filling stations or mobile filling applications. It is equipped with a Siemens PLC controller and a touchscreen, supporting automatic shutdown, automatic discharge, maintenance tips, and fault prompts, making operation intuitive and management convenient. The G5/8×4 unit filling ports can connect four breathing air cylinders simultaneously, improving filling efficiency.

DJW680A Breathing Air Compressor – Technical Specifications

Application: High-pressure breathing air filling for SCBA / SCUBA cylinders

DJW680A Breathing Air Compressor – Key Features

1. Four-cylinder, four-stage high-pressure compression
The DJW680A uses a 4-cylinder, 4-stage compression structure with a rated flow of 680 L/min and a maximum pressure of ≤420 bar. It is ideal for fast filling of SCBA and SCUBA breathing air cylinders.

2. Powerful and stable drive system
Equipped with an 11 kW, 380 V/50 Hz motor, operating at 1,400 rpm with belt drive. It runs smoothly and is easy to maintain.

3. Efficient cooling and reliable lubrication
Air-cooled design with oil pump lubrication and an oil filtration system. This helps extend the service life of the compressor and moving parts, making it suitable for extended operation.

4. Siemens PLC + touchscreen intelligent control
Configured with a Siemens PLC controller and touchscreen for intuitive operation. It supports real-time monitoring, automatic shutdown, and automatic discharge.

5. Four-outlet simultaneous filling
The G5/8 × 4 unit filling outlets allow up to four breathing air cylinders to be connected at the same time, reducing waiting time and improving filling efficiency.

6. Multiple safety protections
Equipped with sequence protection and hydraulic protection. In abnormal conditions, the system can provide timely alarms or shut down to help protect operators and equipment.

7. Intelligent maintenance and fault prompts
Supports maintenance tips and fault prompts, helping operators quickly identify problems and reduce downtime.

8. Compact structure and flexible application
Approximate dimensions: 1,500 × 860 × 1,550 mm. Approximate weight: 390 kg. Suitable for fixed filling stations or mobile filling applications.

9. Breathing air quality assurance
The oil filtration system helps keep lubricant clean. With a compatible breathing air filtration system, it supports clean breathing air output. Regular air quality testing is recommended to meet EN 12021 or local standards.

I. Diving Bases and Underwater Operations
Application scenarios: diving clubs, diving training bases, commercial diving, underwater engineering, salvage and rescue.
Main use: filling SCUBA diving cylinders; supports simultaneous filling of multiple cylinders.
Recommended reason: large flow, high pressure, and four filling ports, making it suitable for high-frequency centralized filling at diving bases.

II. Firefighting Forces and Emergency Rescue
Application scenarios: urban firefighting, forest firefighting, special rescue, earthquake rescue, hazardous materials response.
Main use: filling SCBA positive-pressure air breathing apparatus cylinders.
Recommended reason: automatic shutdown, automatic condensate drainage, oil pressure protection, and phase sequence protection, suitable for high-frequency emergency use.

III. Centralized Air Supply and Cylinder Filling Stations
Application scenarios: organizational breathing air filling stations, third-party cylinder filling, inspection stations, firefighting training bases.
Main use: centralized filling of multiple cylinders, cylinder refilling after inspection, centralized breathing air supply.
Recommended reason: 800 L/min large flow and four G5/8 filling ports, supporting simultaneous filling of multiple cylinders with high efficiency.

IV. Vehicle-Mounted / Skid-Mounted Mobile Filling
Application scenarios: mobile filling vehicles, fire trucks, emergency rescue vehicles, field operations, remote areas.
Main use: vehicle-mounted or skid-mounted breathing air filling, rapid on-site air supply.
Recommended reason: compact structure, belt drive, and air cooling; suitable for vehicle-mounted/skid-mounted integration with flexible mobility.

V. Ships and Marine/Offshore Engineering
Application scenarios: ocean-going vessels, cruise ships, ports, offshore platforms, offshore wind farms, underwater engineering vessels.
Main use: shipboard breathing air cylinder filling stations, breathing air supply for offshore operations.
Recommended reason: large capacity and high pressure, stable and reliable, suitable for centralized filling on ships and offshore.

VI. Petrochemical, Mining, and Industrial Safety
Application scenarios: petrochemical plants, refineries, chemical plants, coal mines, metal mines, power plants, tunnels, subways, confined spaces.
Main use: air supply or cylinder filling for industrial respirators, escape respirators, and airline respirators.
Recommended reason: multiple protections, automatic condensate drainage, oil pump lubrication, and oil filtration, suitable for harsh industrial environments.

Why Choose Us

1. International Standards, European & American Quality
   Designed and built to European and American standards, compliant with multiple international regulations, exported worldwide.

2. Dual Brands, Global Service
   Dejue serves overseas markets; Baosi serves China. Shared R&D and quality control ensure fast response.

3. Own Factory, Controllable Quality
   20-mu production base (approx. 13,334 m² / 3.3 acres), standardized workshops, full-process quality control.

4. High Pressure & Large Flow, Wider Applications
   Up to 50 MPa (500 bar / 7,250 psi) and 50 m³/min (50,000 L/min / 1,765 CFM), covering firefighting, diving, leak testing and more.

5. Customizable, Flexible Fit
   Custom designs available to meet different national and industry standards.

6. High Cost-Performance, Lower TCO
   Comparable quality to imported brands, with significantly lower total cost of ownership.

7. Reliable & Durable, Easy Maintenance
   Selected materials and proven processes ensure stable operation, less downtime and lower maintenance.

8. Rich Export Experience
   Familiar with overseas standards and export procedures; supports international distributors.

Choose us for stable, professional and cost-effective high-pressure air solutions.