Overview of KOMPAIR Single-Stage Oil-Injected Inverter Air Compressors

KOMPAIR single-stage oil-injected inverter air compressors belong to the oil-injected screw air compressor category. They utilize a single-stage compression system, use intelligent inverter (VFD) to adjust the motor speed advanced inverter control actual air demand.

The product was developed by KOMPAIRa brand focused on delivering efficient, cost-effective, and stable industrial compressed air solutionswell suited to the typical operating conditions of manufacturing plants in Vietnam.

This product line is particularly suitable for:

• Medium and large manufacturing plants
• Production lines in mechanical engineering, plastics, packaging, wood processing, and textiles
• Businesses seeking to reduce electricity costs without requiring absolutely oil-free compressed air

Single-Stage Compression Combined with Inverter Technology – Practical Efficiency

Single-Stage Compression Technology

Air is compressed directly through a single screw compression stage, which helps to:providing several advantages:

• Simple machine structure
• Reasonable initial investment cost
• Easy operation and maintenance

For most standard manufacturing plants, single-stage compression technology effectively meets daily compressed air demands without unnecessary additional costs.

Inverter Technology (Energy-Saving Variable Frequency Drive)

The inverter system enables:

• Motor speed adjustment according to actual air demand
• Reduced idle running, minimizing energy waste
• Lower starting current, helping protect the motor
• Smoother and more stable operation

Under variable load conditions, KOMPAIR inverter air compressors can save approximately 20–30% of energy consumption compared to fixed-speed compressors.

High-performance PM engine (IE4, IE5 optional)

• The compressor is equipped with a high-efficiency Permanent Magnet (PM) motor, delivering superior performance that meets
  the IE4 efficiency standard.
• Protection class: IP23 Insulation class: F, with Class B temperature rise capability
• Oil-cooled motor design (optional IP55 / IP65)
• Motor efficiency up to 97%

 

Intelligent control system

• 7–10 inch color touchscreen, easy to use, displaying full machine operating information.
• Integrated with a multi-compressor group control function without requiring a central controller.
• Multilingual interface: English, Vietnamese, and Chinese.

 

 

 

VFD Fans and Custom Cooling Systems

• Designed for ambient temperatures up to 52℃ (higher than the standard 40℃) to prevent the risk of shutdown in the summer.
• The extended cooling system design with an anti-corrosion coating ensures better thermal conductivity and a longer lifespan.
• Option: A high-frequency centrifugal fan maintains the oil output at 81℃ and reduces operating noise.

Dual frequency converter

• Customizable main frequency and pressure eliminate idle and excess pressure, saving up to 15% energy.
• Low starting current protects components, and a stable output temperature of 80–85°C ensures optimal coolant operation.

Principle of operation

1. Air compressor screw
2. Two rotating screw shafts compress air in an oil-filled medium.
3. Oil helps to seal, cool, and reduce friction.
4. The gas-oil mixture is separated from the oil before being used.
5. The inverter adjusts the motor speed according to the load demand.

This mechanism helps the machine operate stably, saves electricity, and extends the equipment's lifespan..

The outstanding advantage of the KOMPAIR single-stage oil-lubricated inverter air compressor is that it can handle oil.

• Significant energy savings thanks to Inverter technology
• Stable performancemeeting continuous production requirements
• Reasonable investment costseasy payback
• Quiet operation with low noise levels
• Easy maintenance, with widely available spare parts
• Suitable for many industries

Practical applications 

In practical applications at manufacturing plants:

• Mechanical workshops use it for CNC machines, cutting machines, and pressing machines
• Packaging and plastics industries – operate multi-shift production lines
• Enterprises upgrading compressed air systems to reduce monthly electricity costs

According to feedback from operating engineers, KOMPAIR Inverter air compressors demonstrate high stability, low power consumption, and minimal operational issues,making them suitable for long-term operation.

Guide to Selecting the Right KOMPAIR Air Compressor

Businesses should determine:

• Required air flow rate (m³/min)
• Working pressure of end-use equipment
• Operating hours per day
• Future scalability capability

Choosing the right capacity helps optimize both initial investment and long-term operating costs.

Installation & Operation Instructions

• Install in a dry, well-ventilated area
• Ensure the cooling system operates efficiently
• Regularly check the oil, air filter, and oil filter
• Perform maintenance according to technical recommendations to maintain optimal performance

Frequently Asked Questions (FAQ)

1. Does the KOMPAIR single-stage inverter air compressor save energy?
Yes. It can save approximately 20–30% energy compared to conventional compressors.

2. Is it suitable for continuous operation?
Yes. It is suitable for shift-based and continuous operation when properly maintained

3. Is the output compressed air clean?
It is suitable for standard industrial compressed air applications, but not for industries requiring absolutely oil-free air.

4. Are maintenance costs high?
No. Maintenance costs are relatively low thanks to the simple structure and widely available spare parts.

Why Choose KOMPAIR Air Compressors from Phuc Hung?

• Practical experience in industrial compressed air system deployment
• Consultation on the right capacity and actual demand, avoiding oversizing
• Supply of genuine products with transparent technical information
• Clear warranty, after-sales service, and technical support

Are you looking for a KOMPAIR single-stage oil-injected inverter air compressor to save energy and ensure stable operation for your factory?
👉 Contact carried out maintenance and oil sludge (varnish) removal for for in-depth technical consultation, assistance in selecting the right model, and to receive the most competitive quotation for your business.