Two-Stage Medium Pressure Screw Air Compressor(16 – 40 Bar)

Two-Stage Medium Pressure Screw Air Compressor(16 – 40 Bar)

Product Overview & Energy Saving Advantage

The Jufeng Two-Stage Medium Pressure Screw Air Compressor is specifically built for heavy-duty applications requiring reliable, continuous air pressure between 16 Bar and 40 Bar (232 PSI – 580 PSI). By dividing the total pressure elevation across two distinct rotor sets with inter-stage oil mist cooling, this unit reduces internal compression ratios per stage, preventing thermal stress, minimizing air slip, and significantly lowering specific power consumption.

Thermodynamic Efficiency Advantage: Compared to conventional single-stage medium-pressure compressors, Jufeng's 2-stage air end reduces total motor workload and saves up to 12% – 18% in electricity overhead during 24/7 continuous operation.

Key Engineering Advantages

1. Precision Two-Stage Compression Air End

• Low Stage Pressure Ratios: Reduces internal leakage across rotors and lowers bearing radial loads, vastly extending airend lifespan.
• Inter-Stage Cooling System: Cools air between compression steps, approaching an ideal isothermal compression process.

2. Permanent Magnet Variable Speed Drive (PM VSD Option)

• IE4 Premium Efficiency Motor: Dynamically modulates motor RPM to match immediate factory air consumption,eliminating costly idle loading power waste.
• Oil-Cooled Motor Housing (IP65): Isolates motor windings from dust, humidity, and ambient harsh environmental elements.

3. Heavy-Duty Mechanical & Filtration Architecture

• 1:1 Direct Shaft Coupling: Flexibly couples motor directly to rotor shaft without transmission belts or gears, ensuring zero energy transmission loss.
• Multi-Stage Air/Oil Separation: Maintains downstream oil carryover at ≤ 2 ppm, protecting high-pressure valves, cylinders, and pneumatic systems.

Technical Specifications

Primary Industrial Applications

• PET Bottle Blow Molding: Delivers stable 20–40 Bar air flow for stretch blow molding machines.
• Fiber Laser Sheet Metal Cutting: Provides dry, medium-pressure auxiliary gas for high-speed laser cutting.
• Hydro-Pneumatic & Valve Testing: High-reliability medium pressure source for pressure vessel and valve integrity testing.
• Chemical & Nitrogen Generation: Feeds boost systems and air separation equipment requiring continuous medium pressure.

Jufeng compressor was established in 2000 and has 26 years of experience in the air compressor industry. It's an innovative factory which integrates production, trade, service,research and development. We focus on research, development and manufacture screw air compressors of world's newest energy-saving and intelligent internet information system with the industry's top technology and elite engineering team.

Products include:

• Oil-injected screw air compressor (7.5~630kw)

• Oil-free screw air compressor (7.5~ 400kw)

• Integrated screw air compressor for fiber laser cutting applications

• 3 to 5 bar Low pressure screw air compressor (7.5~400kw)

• Single-phase voltage screw air compressor with tank

• Mobile diesel air compressor

• Rotary screw booster air compressor

We has three workshops:

Air-end workshop

Sheet metal workshop

Assembly workshop

The air-end workshop has two world-advanced rotor grinding machines, two three-coordinate testing instruments, one fully automatic machining center and eight semi-automatic machining centers.

The company has obtained ISO9001, EU CE certification, CLASS 0 oil-free certification, German TUV certification, and obtained more than 30 patent certificates. In 2021, we were awarded the title of Excellent Enterprise in Science and Technology Innovation. In 2022, we were rated as "High-tech Enterprise" and etc. We have our own energy efficiency laboratory.

Our factory is located in Wuxi City, Jiangsu Province, adjacent to Shanghai. We have more than 200 skilled employees and 30 engineers, and we are very strict in every step of manufacturing. The company has a professional trading subsidiary in Shanghai, China. The company conducts brand promotion and service in the global market. Now, our valued customers are located in more than 120 countries.

Jufeng's goal is to become a world-renowned high-end brand, with sustainable development, continuously improve its own value, and it is committed to provide our customers with energy-saving products