The micro oil-filled
Screw Vacuum Pump, a representative of the next generation of vacuum technology, achieves cyclical adjustment of the inter-tooth volume through the coordinated meshing and counter-rotating high-speed rotation of asymmetric screw rotors, thus efficiently completing the pumping process. Its revolutionary breakthrough lies in the use of minimal lubrication technology (oil content <2 PPM), which forms an extremely thin sealing oil film between the rotors. This ensures near-dry pump cleanliness levels while maintaining the high sealing and heat dissipation performance of an oil pump, redefining the boundaries of high-performance vacuum equipment.
This device offers exceptional energy efficiency, saving over 30% compared to traditional vacuum pumps and boasting a volumetric efficiency of up to 95%, significantly reducing industrial energy costs. Furthermore, its operating noise level is kept within the 55–85 dB range, significantly improving the working environment. Furthermore, the micro oil-filled screw
Vacuum Pump exhibits excellent media adaptability, reliably handling mixtures containing water vapor, dust, condensable gases, and even mildly corrosive gases. It is not susceptible to seizure, oxidation, or corrosion, significantly expanding the application range of industrial vacuum systems.
This comprehensive performance advantage makes it a standout in applications requiring the highest vacuum quality, operational reliability, and environmental compatibility:
Pharmaceutical Industry: Used in freeze dryers, solvent recovery, and pharmaceutical packaging. Due to the need to eliminate hydrocarbon contamination, handle condensable vapors, and meet GMP cleanliness requirements, traditional pumps are prone to contamination and failure. The micro screw pump, with its extremely low oil content and strong anti-condensation capabilities, ensures clean processes and continuous production.
Semiconductor and Electronics Manufacturing: Used in processes such as wafer etching, CVD, and vacuum coating. These applications are extremely sensitive to particulate contamination and often involve corrosive process gases. The pumpx27s clean vacuum and excellent chemical compatibility ensure high yield and equipment stability.
Chemical Processing: Fine chemicals, polymerization reactions, and waste gas recovery often encounter corrosive, condensable, or particulate-laden media. The micro screw pumpx27s robust structure and reliable sealing ensure zero-contamination extraction and long-term stable operation, eliminating frequent downtime for maintenance.
Food Packaging: Used in vacuum preservation and modified atmosphere packaging. Food-grade cleanliness requirements must be met, effectively removing oxygen and water vapor. This pump is pollution-free, moisture-resistant, fast, and efficient, supporting reliable operation of high-speed, continuous production lines.
Petroleum and Energy: Applications include oilfield associated gas recovery and oil and gas volatilization control. Its robust self-cleaning and liquid resistance significantly reduce failure rates when handling complex components, high humidity, and even liquid-containing media, making it suitable for harsh operating conditions.
The micro oil-filled screw vacuum pump not only addresses the long-standing challenges of high cleanliness, high reliability, and continuous processing of complex media across multiple industries, but also offers energy savings, low noise, and low maintenance costs, making it a key foundational equipment for high-end manufacturing and sustainable development strategies. It signals the evolution of vacuum technology towards smarter, cleaner, and more integrated technologies, providing crucial support for future industrial upgrades.
It is a Rotary vane vacuum pump in which oil-sealed vanes rotate inside an eccentric stator to trap and exhaust air from the suction chamber. The oil continuously seals the clearances, lubricates the moving parts and cools the pump, allowing it to achieve deep vacuum reliably — typically from 10 to 0.5 mbar, or lower with two-stage designs.
Q2. Which applications is it used for? +
It is the most widely used vacuum pump for general industrial and laboratory duties: vacuum packaging and food processing, pharmaceutical and medical equipment, electronics manufacturing, plastic molding and degassing, printing, lamination, woodworking, dairy and beverage filling, refrigeration/AC evacuation, and laboratory vacuum systems.
Q3. What ultimate vacuum can it achieve? +
Single-stage pumps typically reach about 0.5 mbar; two-stage pumps reach 0.1 mbar or below. The right choice depends on your process: 0.5 mbar covers most packaging and industrial needs, while lower ultimate vacuum suits laboratory and analytical applications.
Q4. What pumping speed ranges do you offer? +
Our oil vacuum pumps cover a wide range from about 1.5 to 250 m³/h, from compact lab pumps to large industrial units. Tell us your chamber volume, required vacuum level and cycle time — we will size the pump for the optimum evacuation time.
Q5. Why is oil important in this pump? +
Oil performs three essential jobs: it seals the clearance between vanes and stator for deep vacuum, lubricates all moving parts to prevent wear, and cools the pump during operation. High-quality vacuum oil with a good service interval is the key to stable performance and long pump life.
Q6. How often must the oil be changed? +
Oil change intervals depend on operating conditions — typically every 500–2,000 operating hours, or sooner when pumping heavy vapors or dust. The pump has a clear sight glass for oil level/condition checks; we supply the correct vacuum oil and service kits and provide a maintenance schedule for your duty.
Q7. What is the gas ballast valve for? +
The gas ballast valve admits a small amount of air into the compression stage, preventing water vapor or solvent vapor from condensing and contaminating the oil. It is essential when pumping humid or solvent-laden gases, and simply closed when pumping dry air for maximum ultimate vacuum.
Q8. Is there oil mist in the exhaust? +
Under normal operation an internal oil separator and optional exhaust oil mist filter capture oil carryover, keeping the exhaust clean and returning oil to the sump. We offer high-efficiency mist eliminators and oil recovery systems for sensitive or cleanroom environments.
Q9. How noisy is it? +
Our pumps are designed for quiet operation — typically 55–68 dB(A) depending on model — with balanced rotors and optional acoustic enclosures. For noise-sensitive sites we can supply enclosure or remote-installation solutions.
Q10. How does it compare with a dry vacuum pump? +
Oil pumps offer deeper vacuum and lower purchase cost, but require periodic oil changes and produce small oil waste. Dry pumps avoid oil but cost more and suit clean, chemically aggressive processes. For most general industrial and packaging applications, an oil pump is the most economical, reliable choice.
Q11. What maintenance does it require? +
Routine maintenance is simple: check the oil level and condition via the sight glass, change the oil and intake filter on schedule, and inspect the exhaust filter and valves periodically. We provide a full service kit (oil, filters, gaskets) and clear instructions so your own team can maintain it easily.
Q12. What are the installation requirements? +
Place the pump on a level, stable surface with adequate ventilation, connect the suction line (short and large-diameter for best performance), and provide the correct motor power supply. Optional accessories include inlet filters, vacuum gauges, solenoid valves and vacuum regulators to complete your system.
Q13. Can it handle humid or corrosive gases? +
With the gas ballast open and regular oil changes, the pump handles water vapor and light solvents well. For aggressive or corrosive media we recommend suitable oil grades, inlet coalescing filters, or our chemically-resistant versions — confirm the gas composition with us and we will configure accordingly.
Q14. Do you support customization and OEM/ODM? +
Yes. As the manufacturer, we customize voltage/frequency (e.g. 110V/220V/380V, 50/60Hz), motor power, accessories and packages (pump + tank + valves + gauges), color and branding, plus OEM/ODM with your logo and documentation.
Q15. What certifications do you hold and what is the lead time? +
Our factory is ISO 9001 certified and the pumps carry CE certification, with other certificates available for your market. Standard models ship within 7–20 days after order confirmation, customized units 20–40 days, export-packed for sea or air freight.
Q16. What warranty and after-sales support do you provide? +
We offer a 12–24 month warranty, 24/7 remote technical support with troubleshooting guidance, operator training, and long-term supply of vacuum oil, spare parts and service kits — typically dispatched within 3–7 days to keep your production running.
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