Quick Reference List for Oil-Free Scroll Compressor Selection and Maintenance

Oil-Free Vortex Air Compressor Quick Reference Guide (Full Version)

1. Five Key Questions for Selecting the Right Model (One Step Solution)

Is it necessary to be 100% oil-free?

Pharmaceuticals / Food / Electronics / Laboratories / Spraying → Must choose ISO 8573-1 Class 0 oil-free vortex type

Ordinary pneumatic / Cleaning → Optional oil-lubricated models

Volume and pressure?

Common pressure: 0.7 MPa / 0.8 MPa (preferred), maximum 1.0 MPa

Formula for calculating gas volume:reserved 20% margin for model selection

How to choose the power range?

≤11kW: A single unit is sufficient

≥11kW: It is highly recommended to use multiple modules in parallel (such as 4×3.7kW, 6×3.7kW). Benefits: Energy saving, redundancy, maintenance without stopping operation, more precise air volume adjustment

Power supply and environment?

Voltage: 220V (low power) / 380V three-phase

Environmental temperature: ≤ 40℃, with good ventilation and less dust

Control method?

Priority: Permanent magnet variable frequency + intelligent linkage control

Constant pressure gas supply, with small fluctuations, energy saving by 20% to 40%

II. Key Certifications and Parameters to Pay Attention To

Oil-free certification: ISO 8573-1 Class 0 (Top priority, anti-fake and oil-free)

Motor energy efficiency: IE3 / IE4 high-efficiency motor

Noise: 53–65 dB(A) (Suitable for indoor use close to humans)

Host lifespan: ≥ 30,000 hours

Exhaust oil content: 0 mg/m³

III. Installation Environment Specifications (Determining Lifespan)

Installation space: 1 meter on all sides, 1.5 meters at the top

Ventilation: Forced ventilation, avoid direct sunlight

Floor: Level, sturdy, shock-absorbing pad

Air intake: Away from dust, cooking fumes, corrosive gases

Drainage: Automatic condensate drain device to prevent water accumulation and corrosion

IV. Standard Maintenance Cycle Table (Simplified Version)

Table Component Cycle Operations Air Filter 500 hours - Inspection, 2000 hours - Replacement Blow-off / Replacement Cooler / Fan 1000 hours - Dust Cleaning Condensate Drainage Device Daily Inspection to Ensure Normal Drainage Electrical Wiring / Sensors 1000 hours - Tightening, Temperature Measurement Host Sealing Parts 20000 hours - Inspection and Replacement (by Professionals) Host Body - No Disassembly, Strictly Prohibit Disassembly

Core advantage: The oil-free machine has no oil, oil filter, or oil separation core, resulting in a significant reduction in maintenance costs.

V. Daily Inspection 10-step Rule

1. Check if the pressure is stable.

2. Listen for any abnormal noises.

3. Feel the temperature to see if it's high.

4. Check if the drainage is working properly.

5. Observe if the alarm is clear.

VI. Quick Fault Diagnosis (Available on Site)

The exhaust pressure cannot be increased.

Exceeding gas capacity limit → Capacity expansion / Adding modules

Air filter clogged → Replacement

Internal leakage → Professional maintenance

High temperature alarm

High environmental temperature / Poor ventilation

Accumulated dust in the cooler

Fan failure

Exhaust containing oil (impossible but wrongly judged)

Mostly condensate water / residual oil in the pipeline

It is impossible for the truly oil-free vortex compression chamber to receive oil

Strange noise

Loose base

Fan / motor bearing issue

Non-host problem (no contact with the host, very little abnormal noise)

VII. Applicable vs. Inapplicable Scenarios

✅ Most Suitable

Medical, pharmaceutical, dental

Food filling, packaging, fermentation

Electronics, semiconductors, photovoltaics, lithium batteries

Laboratories, precision instruments, spraying

Indoor scenarios with high requirements for noise / cleanliness

❌ Not suitable

Extremely dusty environment (with pre-filter required)

Long-term environmental temperature > 45℃

Ultra-high pressure (＞1.3 MPa) requirement

VIII. Key Points to Include in Procurement/Bidding Documents (Can be Directly Copied)

Using oil-free vortex compression technology, ISO 8573-1 Class 0 oil-free certification

The moving and stationary discs operate without contact, with the host lifespan ≥ 30,000 hours

Direct drive, no belt/gear wear, high efficiency

Modular design, load as needed, significant energy saving

Low noise (53–65dB), low vibration, can be arranged closely

Oil-free lubrication system, no oil maintenance, low operation and maintenance costs

Intelligent inter-control, constant pressure supply, small pressure fluctuation