OEM 4-in-1 Explosion-Proof Air Compressor | 7.5-22kW Permanent Magnet Integrated Unit Factory, Exporters
Product Description
The 4-in-1 explosion-proof air compressor is an integrated compressed air solution that combines the compressor unit, air receiver tank, refrigerated air dryer, and precision filters into a single compact system. Specifically engineered for hazardous environments where flammable gases, combustible dust, or fibers may be present, the unit features explosion-proof motors and electrical systems designed to prevent spark generation or heat accumulation, ensuring safe and reliable operation in high-risk industrial settings.
The explosion-proof motor and electrical system are specially treated to comply with relevant explosion protection standards, making the unit suitable for chemical, petrochemical, painting, and other flammable or explosive workplaces. The equipment is equipped with a comprehensive safety monitoring and protection system, including temperature monitoring, voltage anomaly protection, and automatic shutdown, providing full-spectrum operational safety.
Adopting permanent magnet variable frequency (PM VFD) and integrated direct-drive technology, the compressor unit connects directly to the motor without the need for brackets, belts, or pulleys, achieving 100% transmission efficiency. The motor features a bearing-free and oil-seal-free design, eliminating motor bearing failure points and improving efficiency by approximately 20% compared to traditional induction motors of the same specification.
The intelligent control system automatically adjusts operation based on actual air demand, balancing performance and energy consumption, and preventing energy waste from unloaded or partially loaded operation.
Integrating the compressor unit, air receiver tank, drying and filtration system, and intelligent control system into a single skid, the unit arrives ready for use — only power and piping connections are required on-site for immediate commissioning. The 4-in-1 integrated design offers significant advantages over traditional split systems:
| Advantage | Description |
|---|---|
| Space Saving | Footprint reduced by more than 50% compared to traditional split systems |
| Easy Installation | Fully assembled and factory-tested; no complex on-site piping required |
| Reduced Line Loss | Minimized internal piping connections effectively reduce pressure drop and leakage risks |
| Centralized Maintenance | All service points are centrally located for convenient daily inspection and upkeep |
Optimized structural design effectively reduces pipeline pulsation, vibration, and noise levels, achieving noise levels as low as 65 dB — suitable for workplaces with strict noise limitations.
The 4-in-1 explosion-proof air compressor is widely used across industries requiring explosion protection:
Provides instrument air, valve actuator drive, and associated gas compression in oilfields and refineries. Petrochemical environments often contain flammable gases, making explosion-proof design a fundamental safety requirement.
Supplies compressed air for paint spray booths and coating production lines. Paint shops contain large volumes of combustible solvent vapors — any electrical spark could trigger a serious accident, making explosion-proof compressors essential equipment.
Provides process air for pharmaceutical production, particularly in active pharmaceutical ingredient (API) synthesis, solvent recovery, and other processes involving flammable solvents or combustible dust, ensuring safety and regulatory compliance.
Supplies compressed air in areas of food facilities with explosion risks, such as flour storage, alcohol fermentation, and other zones where combustible dust or vapors may be present.
Delivers safe compressed air for pneumatic tools, ventilation systems, and other applications in coal mines and other gas-containing underground environments.
Provides auxiliary air for laser cutting machines (lens protection and assist gas) and supports painting and confined-space operations in shipbuilding, all requiring explosion-protected compressed air.
Serves small-scale fine chemical R&D and production facilities with limited space and stringent safety requirements — the compact 4-in-1 design is particularly well-suited for such environments.
| Industry | Typical Application | Explosion Protection Level |
|---|---|---|
| Petrochemical | Instrument air, associated gas compression | High |
| Painting & Coating | Spray gun supply, paint mixing | High |
| Pharmaceutical | Process air, solvent handling | Medium-High |
| Food Processing | Powder conveying, fermentation | Medium |
| Mining | Pneumatic tools, ventilation | High |
| Laser Cutting | Assist gas, lens protection | Medium |
| Parameter | Reference Value |
|---|---|
| Power Range | 7.5kW – 22kW |
| Air Delivery | 0.8 – 2.8 m³/min (pressure-dependent) |
| Noise Level | 60 – 65 dB |
| Working Pressure | Customizable per customer requirements (typically 0.8 – 1.3 MPa) |
| Explosion-Proof Rating | Ex d IIB / Ex d IIC (optional) |
The 4-in-1 explosion-proof air compressor covers a power range of 7.5kW to 22kW. For higher power requirements (30kW and above), a split-type explosion-proof system is recommended.
"4-in-1" integrates the compressor unit, air receiver tank, refrigerated air dryer, and precision filters into a single compact system.
Space saving (50%+ smaller footprint), easy installation (factory-assembled, plug-and-play), reduced piping losses, centralized maintenance, and cost optimization.
Available in Ex d IIB T4 (most chemical/painting applications) and Ex d IIC T4 (hydrogen/acetylene environments). Suitable for Zone 1/2 (gas) and Zone 21/22 (dust) hazardous areas.
PM VFD delivers 100% transmission efficiency, 20% higher motor efficiency than induction motors, and 20%–40% energy savings compared to fixed-speed compressors.
