Jiangsu Jufeng Machinery Manufacturing Co., LTD company FAQ

Proper maintenance is critical for operational efficiency and equipment longevity:

Essential Maintenance Protocol:

1. Air filter replacement/cleaning schedule
2. System integrity checks (leak detection for air/oil systems)
3. Lubrication system maintenance (oil change intervals)
4. Pressure regulation monitoring (switch/valve adjustments)
5. Cooling system inspection

Proactive maintenance significantly reduces operational costs. As an industry leader, Jufeng provides professional maintenance support through our global dealer network and technical service team.

We offer complete OEM/ODM solutions through our in-house design team, including:

• Brand customization (color schemes, logo placement, enclosure modifications)
• Technical specifications adaptation
  Our warranty coverage extends up to five years, with flexible service terms available for customized projects.

Our customer support framework encompasses:

Pre-sales Consultation:

• Technical parameter analysis (air consumption, pressure requirements, voltage specifications)
• System configuration advisory (motor protection, host selection, accessory compatibility)
• Comprehensive product documentation (technical specifications, certification files, test reports)

After-sales Support:

• 24/7 engineering assistance
• Operational maintenance guidance
• Troubleshooting services

Oil-injected screw air compressors are widely used in industrial settings due to their high efficiency, reliability, and cost-effectiveness. Here’s why they stand out:

1. High Efficiency & Stable Performance

• Improved volumetric efficiency: Oil sealing reduces internal leakage, enhancing compression, especially in high-pressure applications.
• 24/7 continuous operation: Oil lubrication minimizes wear, ensuring long-term stability.

2. Superior Cooling & Durability

• Direct cooling: Injected oil absorbs heat, keeping discharge temperatures below 80°C, preventing rotor damage.
• Extended lifespan: Reduced thermal stress protects bearings and rotors.

3. Low Noise & Vibration

• Oil damping cuts noise by 5-10 dB, ideal for hospitals and labs.

4. Easy Maintenance & Cost Savings

• Advanced filtration (3-stage separation) extends service intervals (2,000-8,000 hours).
• Lower upfront cost (30-50% cheaper than oil-free models).

5. Wide Adaptability

• Handles dusty/high-temperature environments (mining, metallurgy).
• Energy-saving (20-40% at partial loads via VFD/slide valve control).

6. Controlled Air Quality

• Minimal oil carryover (≤3ppm) with efficient separators, meeting ISO 8573-1 Class 1.

Limitations vs. Oil-Free Compressors

• Requires regular oil/filter changes but offers better energy efficiency.
• Needs additional filtration for oil-sensitive applications (food/pharma).

Typical Applications

✔ Manufacturing (injection molding, CNC)
✔ Construction (pneumatic tools)
✔ Chemical plants & power stations

Conclusion: Oil-injected screw compressors balance performance, cost, and reliability, making them a top choice for industrial use. Select based on airflow, pressure needs, and air quality standards.

Recommended System Sizing
For optimal performance, select an air dryer with at least 10% greater capacity than your air compressor.

Example:

• Air compressor output: 3.6 m³/min

• Ideal cold dryer capacity: 4 m³/min

The precision filter should always be matched to the air dryer's specifications.