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    Email: nh.li@auto-parkingheater.com

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Liquid Cooled Scroll Air Compressor video

Liquid Cooled Scroll Air Compressor

Engineered for quieter, more efficient operation — 65dB noise, higher energy efficiency, and a 16,000+ hour service life, with zero oil contamination risk.

Description

If you're looking for the liquid cooled scroll air compressor, welcome to wholesale the product from our factory. As one of the leading manufacturers and suppliers in China, we will offer you the best service and fast delivery. Now, check the quotation with our seller.

 

Competitive Product Comparison Table

 

Parameter

Ordinary/Other Compressors

NF Oil-Free Scroll Compressor

Value

Technology

Piston type/Oil-lubricated scroll

Oil-free scroll

100% oil-free air output; zero contamination risk

Design Life

12000H+

16000H+

Lower total cost of ownership; extended replacement cycle

Maintenance Cost

Regular oil & filter changes required

Maintenance-free; no lubricant needed

Eliminates oil & labor costs; reduces overall operating expense

Applications

General use, with low requirements for air quality

Air quality-sensitive applications (EV buses, medical, electronics, food transport)

Access to high-value segments with stricter requirements

Energy Efficiency

Standard efficiency

Higher efficiency

Lower energy consumption; ideal for electric vehicles

Noise Level

75-80 dB

65 dB

Significantly quieter operation; improves driver & passenger comfort

Warranty & Support

6-12 months warranty

24 months warranty

Reduced risk; reliable after-sales support

 

 

Products Description

 

The Liquid-Cooled Scroll Air Compressor is a 100% oil-free compressed air solution engineered for applications where air purity, reliability, and low maintenance matter most. Unlike traditional piston-type or oil-lubricated scroll compressors, this unit uses an oil-free scroll design to deliver contamination-free compressed air - eliminating the risk of oil carryover entirely.

 

Our Advantage

 

1. True Zero-Oil Design, Not Just "Low-Oil"
This is a genuinely oil-free scroll compressor - not an oil-lubricated unit marketed as "low maintenance." With no lubricant in the compression chamber at all, there is zero risk of oil carryover into the compressed air, making it suitable for applications where even trace contamination is unacceptable.

 

2. Nearly 40% Longer Service Life, With No Ongoing Maintenance Cost
At a 16,000+ hour design life - compared to the 12,000-hour typical lifespan of ordinary compressors - this unit also eliminates the recurring cost of oil and filter changes entirely. The result is a lower total cost of ownership over the compressor's operating life, not just a lower upfront price.

 

3. Verified Performance, Not Just Rated Numbers
Beyond the standard spec sheet, this compressor's power and flow characteristics are documented across the full pressure range (1–12 bar) with actual performance curve data - giving engineers a real basis for system design instead of a single rated figure.

 

4. Engineered for Continuous, High-Load Operation
With forced water cooling and a validated operating range of -20°C to 65°C, the compressor is built to sustain performance under continuous duty cycles - not just short bursts - with rated flow guaranteed at no less than 96% of table values and power draw capped at no more than 110%, per the manufacturer's own tested tolerances.

 

5. Built-In Electrical Protection for Safer Integration
The motor includes reverse-phase protection, automatically preventing operation if the input wiring sequence is incorrect - reducing the risk of damage during installation, and giving integrators a safer margin when wiring on-site.

 

6. Backed by a 24-Month Warranty and Certified Safety Standards
The compressor complies with GB14711-2013 safety standards and carries Class F insulation, backed by a 24-month warranty - double the 6–12 month coverage typical of ordinary compressors.

 

Application Scope

 

On electric buses, this oil-free scroll compressor supplies clean, high-pressure air for several critical onboard pneumatic systems:

 

  • Air Braking - Delivers clean, high-pressure air to the vehicle's pneumatic braking system, directly supporting driving safety. Because the air is oil-free, there's no risk of oil contamination affecting brake system components over time.
  • Pneumatic Door Pump - Powers smooth, reliable operation of passenger doors, the driver's door, and outward-swinging doors.
  • Air Suspension - Enables ride height adjustment for improved passenger comfort.
  • Other Pneumatic Systems - Supports additional onboard air-powered functions, including the air horn, windshield wipers, seat adjustment, and underbody cleaning.
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Installation & Technical Support

 

Designed for straightforward integration, the Liquid Cooled Scroll Air Compressor mounts via 4 x M10 bolted connections, with a compact footprint of 334×300×354mm. The air intake and exhaust use standard fittings - Φ25 suction pipe and Φ25 M22×1.5 compression fitting for exhaust - for compatibility with common pneumatic system components.

 

The unit runs on 380VAC three-phase power, with reverse-phase protection built into the motor to help prevent incorrect wiring during installation. Forced water cooling requires an external coolant flow rate of ≥10L/min, with coolant inlet temperature maintained at ≤65°C.

Our technical team provides full documentation and support throughout installation, including:

  • Detailed mounting and connection drawings
  • Wiring specifications and rotation direction guidance
  • Recommended operating and maintenance procedures
  • Troubleshooting guidance for common issues

 

FAQ

 

Q1. Is this compressor really 100% oil-free?
A: Yes. Unlike oil-lubricated scroll or piston-type compressors, this unit uses a genuine oil-free scroll design with no lubricant in the compression chamber, ensuring zero oil contamination in the output air.

 

Q2. What is the compressor's rated flow and working pressure?
A: At 3200rpm, the rated flow is ≥480L/min, with a working pressure range of 0–12.5MPa.

 

Q3. What cooling method does the compressor use, and what are the requirements?
A: The compressor uses forced water cooling. It requires an external coolant flow rate of ≥10L/min, with coolant inlet temperature maintained at ≤65°C and hydraulic pressure below 1 bar (gauge pressure).

 

Q4. What is the operating temperature range?
A: The compressor is rated for reliable operation across an ambient and intake air temperature range of -20°C to 65°C.

 

Q5. How noisy is the compressor during operation?
A: Noise level is ≤65dB at 3200rpm, measured with sensors positioned 100cm above, in front of, behind, and to the sides of the compressor.

 

Q6. What is the expected service life, and does it require regular maintenance?
A: The compressor is designed for a 16,000+ hour service life with no lubricant required, eliminating the need for regular oil and filter changes.

 

Q7. What safety protections does the compressor include?
A: The motor includes reverse-phase protection, which automatically prevents operation if the input wiring phase sequence is incorrect, reducing the risk of damage during installation.

 

Q8. What should I do if the compressor doesn't respond after powering on?
A: This is most commonly caused by an incorrect input phase sequence. Check that the phase sequence and compressor rotation direction match the wiring guidance in the installation manual.

 

Q9. What if the compressor's pressure doesn't rise during operation?
A: This is typically due to a clogged intake filter, a pipeline leak, or compressor failure. Check and clean the intake filter first, then inspect the gas line for leaks before considering a repair.

 

Q10. What warranty is provided?
A: The compressor comes with a 24-month warranty, compared to the 6–12 month coverage typical of ordinary compressors.

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