China high quality Noiseless 55dB 120lpm Portable Oilless Air Compressor for Dental Medical Use supplier

China High Quality Noiseless 55dB 120lpm Portable Oilless Air Compressor for Dental Medical Use

China High Quality Noiseless 55dB 120lpm Portable Oilless Air Compressor for Dental Medical Use

Product Description

Our 120lpm Portable Oilless Air Compressor offers a noiseless operation at an impressive 55dB, making it ideal for dental and medical applications. This high-quality compressor is designed to meet rigorous standards, ensuring reliability and efficiency.

Product Parameters

Complete solution leader in oilless air pump field

  • Oilless operation
  • Permanently lubricated bearings
  • High performance piston seal
  • Die-cast aluminum components
  • Thin wall, hard coated aluminum cylinder
  • Dynamically balanced
  • Twin headed rock piston
  • RoHS compliant
  • Safety ETL certificated
NOTE: All test values are nominal and for reference only. They are not guaranteed maximum or minimum limits, nor do they imply mean or median.
Model Number ZGK500-120/2-218
Performance Data
Head configuration Pressure parallel flow Pressure parallel flow
Nominal voltage/frequency 110V/60HZ 220V/50HZ
Current at rated load 5.6A 2.7A
Power at rated load 590W 580W
Flow at rated load 110L/MIN 120L/MIN
Pressure at rated load 30PSI(2BAR) 30PSI(2BAR)
Speed at rated load 1650RPM 1400RPM
Noise <59dB <59dB
Max. Pressure restart 0 PSI 0 PSI
Electrical Data
Motor type [Capacitance] P.S.C(35uF) P.S.C(14uF)
Motor insulation class B B
Thermal switch [Open temperature] Thermally protected (145°C) Thermally protected (145°C)
Line lead wire color, gauge White (hot), black (neutral), 18AWG Brown (hot), blue (neutral), 18AWG
Capacitor lead wire color, gauge Blue, blue, 18AWG Black, black, 18AWG
General Data
Operating ambient air temperature 50° to 104°F (10° to 40°C) 50° to 104°F (10° to 40°C)
Safety certification ETL ETL
Dimension (LxWxH) 257x146x190MM 257x146x190MM
Installation size 203×88.9MM 203×88.9MM
Net weight 10KG 10KG
Application For 10L oxygen concentrator use

Detailed Photos

Photos showcasing the detailed design and components of our air compressor.

Our Advantages


  • Standard product with ERB bearing, 14000 hours operation.
  • Customized imported TPI/NSK bearing.


  • The coil adopts the fine pure copper enameled wire.
  • The rotor adopts the famous brand silicon steel sheet such as ZheJiang baosteel.


  • The valve steel of Sweden SANDVIK; Good flexibility and long durability.
  • Thickness from 0.08mm to 1.2mm, suitable for maximum pressure from 0.8 MPa to 1.2 MPa.

Piston ring

  • Wear-resistant high temperature; Ensure more than 10,000 hours of service life.
  • Customized imported piston ring.

Product Application

Ideal for use in 10L oxygen concentrators and other medical devices requiring reliable, noiseless air compressors.

Our Manufacturing Process

We design and produce all main parts by ourselves, along with the standard procedure and test equipment, so we can better control the quality and cost. Our factory starts from die-casting of aluminum, motor production, precision finishing, automatic assembly of pumps, the capacity is 300,000 units per month, we provide OEM/ODM service to achieve high-end customization and development for customers. We have a complete set of testing laboratories such as motor lab, high and low temperature lab, ROHS lab, and Life test lab.

Our Service

We specialize in the designing and manufacturing various kinds of oil-free air compressors and vacuum pumps since 1971, especially for medical applications.


Our products have passed ETL, CE, CCC certifications, leading the level in the world. We have more than 20 invention patents and utility patents.

Other Product Businesses

EVER-POWER GROUP mainly supplies various products for industrial use, such as agricultural gearboxes, power output shafts, sprockets, fluid couplings, worm gear reducers, gears and racks, roller chains, pulleys, planetary gearboxes, timing pulleys, bushings, and more. We offer high-quality products, preferential prices, and considerate services. Customers are welcome to customize drawings and samples.


  1. What is the noise level of the compressor? The compressor operates at a noiseless 55dB.
  2. What is the application of this air compressor? It is ideal for use in 10L oxygen concentrators and other medical devices.
  3. What certifications does the product have? Our product has ETL, CE, and CCC certifications.
  4. What is the operational life of the standard ERB bearing? The standard ERB bearing has an operation life of 14,000 hours.
  5. Can I customize components like the piston ring? Yes, we provide customization options for components such as the piston ring.

All the content of the page is from the Internet, the content is only as a reference for product selection, our products are replacement parts and not original spare parts; we are not the holder of the original trademarks of the content, our products are only suitable for after-sales replacement parts and not original spare parts, our replacement parts can be perfectly adapted to the original spare parts; if you need to buy original spare parts, please contact the original factory to buy. If you want to buy original spare parts, please contact the original supplier for purchase.

Performance Characteristics of Oilless Air Compressors

Oilless air compressors are designed to operate without the need for oil lubrication, which distinguishes them from traditional air compressors. Here are the key performance characteristics:

Oil-Free Operation

An oilless air compressor does not require oil for lubrication, which reduces the risk of oil contamination in the compressed air. This feature is particularly beneficial in industries such as food and beverage, pharmaceuticals, and electronics manufacturing where clean air is crucial.

Low Maintenance

Without the need for oil changes and related maintenance, oilless air compressors offer lower maintenance costs and simpler upkeep. This leads to less downtime and more reliable operation.

Environmental Friendliness

Oilless air compressors produce fewer emissions and are more environmentally friendly due to the absence of oil disposal issues. This makes them a sustainable choice for various applications.

Quiet Operation

These compressors typically operate more quietly than their oil-lubricated counterparts, making them suitable for environments where noise reduction is important.

Enhanced Durability

Oilless air compressors often feature advanced materials and design that enhance their durability and longevity, providing long-term reliability.

Types and Characteristics of Oilless Air Compressors

Oilless air compressors come in various types, each with unique characteristics and suitable applications.

Reciprocating Oilless Air Compressors

These compressors use a piston driven by a crankshaft to deliver air at high pressure. They are known for their compact size and efficiency in delivering high-pressure air.

Rotary Screw Oilless Air Compressors

These compressors use twin screws to compress air, offering continuous operation and reduced noise levels. They are ideal for industrial applications requiring a steady supply of compressed air.

Scroll Oilless Air Compressors

Scroll compressors use two spiral-shaped scrolls to compress air. They are appreciated for their quiet operation, reliability, and low maintenance requirements.

Advantages of Oilless Air Compressors Made of Different Materials

Aluminum Construction

Oilless air compressors made of aluminum are lightweight, offering ease of portability and installation. Aluminum also provides good corrosion resistance and durability.

Stainless Steel Construction

Stainless steel compressors are highly resistant to corrosion and contamination, making them ideal for the food, beverage, and pharmaceutical industries.

Composite Materials

Compressors constructed from composite materials combine strength and lightness, providing excellent performance in harsh environments.

Application of Oilless Air Compressors in Various Fields

Oilless air compressors are crucial in many industries due to their clean air output and reliable performance.

Medical and Dental Equipment

In the medical and dental fields, oilless air compressors provide clean, oil-free air necessary for patient care and equipment operation.

Food and Beverage Industry

The absence of oil contamination is crucial in the food and beverage industry to ensure product safety and quality.

Pharmaceutical Industry

Oilless compressors are essential in pharmaceutical manufacturing processes where contamination-free air is required.

Electronics Manufacturing

In electronics manufacturing, clean air is vital to prevent damage to sensitive components during production.

Automotive Industry

The automotive industry utilizes oilless air compressors for painting, cleaning, and other processes where oil contamination can affect product quality.

Future Development Trends and Opportunities of Oilless Air Compressors

Oilless air compressors are evolving to meet the demands of various industries. Key trends include:

Increased Energy Efficiency

Manufacturers are focusing on improving the energy efficiency of oilless air compressors to reduce operational costs and environmental impact.

Advanced Materials

The development of new materials will enhance the durability and performance of oilless air compressors, making them suitable for more demanding applications.

Smart Technology Integration

Integration of smart technology and IoT features will enable remote monitoring and predictive maintenance, increasing reliability and reducing downtime.

How to Choose a Suitable Oilless Air Compressor

Choosing the right oilless air compressor involves several considerations:

Clear Requirements

Identify the specific needs of your application, including pressure requirements, air quality, and usage patterns.

Material Selection

Choose a compressor constructed from materials that suit your operating environment and industry requirements.

Design Optimization

Consider the design and features of the compressor, such as noise levels, size, and ease of maintenance.

Suppliers and After-Sales Service

Select a reputable supplier who offers reliable after-sales service and support to ensure long-term performance.


Evaluate the total cost of ownership, including purchase price, maintenance costs, and energy efficiency, to determine the most cost-effective option.

Quality Control

Ensure that the compressor meets industry standards and certifications for quality and performance.

Author: Dream


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