Best Oil Free Diaphragm Vacuum Pumps for Sale in 2024


Oil-free vacuum pumps are indispensable products in laboratories and industrial workshops. Oil-free diaphragm vacuum pumps have a series of benefits, such as cleaner, more environmentally friendly, and more stable.


Oil Free Diaphragm Vacuum Pumps for Sale Online


Features of Our Oil-free Vacuum Pumps

Maisi® Oil-free Chemistry Diaphragm Vacuum Pumps are designed for excellent corrosion resistance in routine biology and chemistry lab applications.

Excellent Corrosion Resistance

Maisi® Oil-free Chemistry Diaphragm Vacuum Pumps are constructed of materials with excellent corrosion resistance, such as PTFE heads and diaphragms. All multistage pumps are equipped with a gas ballast to provide consistent pump performance with condensed vapors.

No Oil Changes

These vacuum pumps utilize diaphragm vacuum technology. The totally dry operation eliminates the misting, handling and disposal of contaminated waste associated with rotary vane pumps. No oil to change or monitor!

Reduced Maintenance

Typical diaphragm lifetimes are well in excess of 15,000 hours of use before replacement - that's years in most applications, minimizing downtime and service costs. When it is finally time for service, their unique design eliminates tedious, trial-and-error stroke length recalibration.

Improved Productivity

Maisi® pumps are engineered for performance, with flow rates as much as 40% higher at working vacuum level than competitive pumps with similar free air capacity ratings. Higher flow rates mean reduced process times and higher throughput.

Quiet & Reliable

Maisi® pumps offer whisper-quiet operation and low vibration. Plus, all Maisi® pumps and systems must pass rigorous product testing before leaving the factory. It's your assurance of a reliable pump.


The Main Purpose of Oil-free Vacuum Pump

  • Vacuum adsorption
  • Solvent filtration
  • Vacuum distillation
  • Vacuum drying
  • Compressing and converting gas
  • SPE (Solid phase extraction)
  • Deaeration,etc


Top Manufacturer of Oil-Free Diaphragm Vacuum Pumps

Maisi is a Diaphragm Vacuum Pumps manufacturer and supplier from China. Has a modern factory in Ningbo, China, equipped with automated production lines and strict quality management system. Able to provide you with affordable vacuum pump.

With the demand and development of the market, the company has its own patents, and has passed the ISO9001:2008 quality system certification and RoHS certification, providing a strong guarantee for product quality;

Why choose us

All our products for CE, ROHS, and our factory are ISO9001 certified.

Our diaphragm pumps are oil-free, low noise, maintenance-free, corrosion resistant, low power consumption, small in size, and light in weight.

Compared with other competitors, Maisi adopts the latest new technology, stable performance, large flow, high pressure, and high vacuum ratio.

If you need to buy or customize an oil-free diaphragm vacuum pump, then please contact us. We will give a reasonable price!

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China Diaphragm Vacuum Pump, Compressor Pump Manufacturer - Maisi Pumps
No. 669 Jinyuan Road, Panhuo Street, Yinzhou District, Ningbo City, Zhejiang,China. 315020
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