Common Challenges in Precision Vacuum Working Conditions

Facing the pain points of traditional vacuum pumps, analyzing various challenges in precision vacuum applications.

Pump Oil Backflow Contaminates the Chamber, Causing Precision Process Failure

Oil vapor backflow from oil-lubricated vacuum pumps contaminates the instrument chamber, causing test distortion and scrapping of coated products.

High Noise and Vibration, Not Suitable for Built-in Instrument Cabinets

Traditional pumps have high noise and vibration, which interfere with instruments and operators when placed in laboratories or integrated into equipment cabinets.

Shaft Seal Wear and Leakage, Process Gas Escape

Rotating shaft seals are prone to wear, causing media to leak outward, unstable vacuum degree, and inability to recover rare gases.

Complicated Maintenance, Must Return to Factory for Disassembly, Long Downtime

Replacement of wearing parts requires returning to the factory for disassembly, resulting in a long equipment downtime cycle and affecting the experimental progress of precision instrument production lines.

Core Advantages of Leynow WX Dry Scroll Vacuum Pump

Oil-free clean vacuum, solving various pump pain points in precision working conditions.

Single-sided Scroll, Dry and Oil-free, Fully Sealed without Shaft Seals

Non-contact dry compression between fixed and orbiting scrolls; metal bellows static sealing, no rotating shaft seal, preventing process medium leakage and contamination.

Low Noise and Low Vibration, Suitable for Cabinet Integration

Continuous and smooth scroll compression, small gas pulsation; optimized dynamic balance of the whole machine, low noise and vibration, suitable for laboratories and built-in instruments.

Almost Maintenance-free, On-site Seal Replacement

Long-life lubricated bearings; maintenance only requires replacing the scroll tip seal without special tools, completed by the operator on-site without returning to the factory for disassembly.

Ideal Dry Backing Pump for Molecular Pumps and Helium Leak Detectors

Excellent performance in the medium vacuum range, oil-free and does not contaminate the chamber, suitable for complete high-vacuum systems of turbo molecular pumps and helium mass spectrometer leak detectors.

Multiple Models and Specifications, Can Be Embedded in Complete Equipment

Full WX0020H / WX0040H / WX0080H series, available as standalone machines or as built-in vacuum sources for equipment.

Original Factory Parts, Technical Support for Precision Working Conditions

Scroll tip seals and filters in stock from the original factory; mature experience in leak detection and gas recovery, full support for selection, troubleshooting, and factory repair and maintenance.

Explore Our Dry Vacuum Pump Series

ScrewPumps

ScrewPumps

  • Twin-screw non-contact dry compression, high pumping speed, high ultimate vacuum

  • Oil-free and clean, strong resistance to dust and condensable gases

  • Suitable for demanding processes such as semiconductors, chemicals, pharmaceuticals, and coating

  • Representative models: LS Series

  • Can be used independently, and is also often used as a backing pump for Roots pumps

Clawpump

Clawpump

  • Multi-stage claw rotor non-contact dry compression, compact structure

  • Oil-free with no wearing parts, suitable for extracting condensable gases

  • Low noise and low vibration, stable and reliable long-term operation

  • Representative models: LC Series

  • Chemical distillation, vacuum drying, semiconductor backing pre-pumping

Scrollpump

Scrollpump

  • Single-sided scroll dry oil-free compression, fully sealed without shaft seals

  • Low noise and low vibration, virtually maintenance-free, on-site seal replacement

  • Ideal dry backing pump for helium mass spectrometer leak detectors and turbo molecular pumps

  • Representative models: WX Series

  • Analytical instruments, gas recovery, semiconductor coating, scientific research experiments

Oil-Free Rotary Vane Vacuum Pump

Oil-Free Rotary Vane Vacuum Pump

  • Graphite rotary vane dry structure, no vacuum pump oil required, no risk of oil mist pollution

  • Outputs clean gas, protecting materials from oil and gas contamination

  • Suitable for food, pharmaceutical, transportation, power generation, and processes with zero tolerance for oil and gas

  • Representative Model: LX Series

  • Graphite vanes will produce trace amounts of graphite dust; a front-end filter device is necessary

Oil-Free Piston Vacuum Pump

Oil-Free Piston Vacuum Pump

  • Reciprocating piston all-oil-free structure, no lubricating oil required in the pump cavity, outputs clean air source

  • Compact and small model, easy to embed in equipment cabinets or integrate into automated machines

  • Low noise operation, H-type for high negative pressure, V-type for large flow rate, selection according to working conditions

  • Representative Model: LP Series

  • Suitable for clean negative pressure scenarios such as oxygen generation, medical, and laboratory

Roots Vacuum Pump

Roots Vacuum Pump

  • Double rotor non-contact dry compression, compact structure, large pumping speed in the medium vacuum range

  • Dry oil-free operation, no rotor wear, needs to be connected in series with a backing pump to form a unit

  • Low noise and low vibration, industrial motor supports long-term continuous operation

  • Representative Model: LR Series

  • Suitable for vacuum packaging, coating, pharmaceutical, electronics, and chemical distillation backing vacuum

Overview of Main AC Model Parameters

Specifications overview of the oil-free vacuum pump series for quick matching and selection.

Product Model Motor Power Ultimate Vacuum Rated Voltage Rated Current Rated Flow Product Category

LS 0020F

 1.1 Kw 3 Pa AC△200-240V/Y345-415V 18 m3/h 3.0 A

ScrewPumps

LS 0200F

 4.6 Kw 2.0 Pa △345-415V/Y600-720V 180 m3/h 9.0△/5.2Y

ScrewPumps

LS 0400F

 7.5 Kw 5.0 Pa △345-415V/Y600-720V 396 m3/h 16.7△/9.6Y

ScrewPumps

LS 0540F

 15.0Kw 5.0 Pa △345-415V/Y600-720V 540 m3/h 32.5△/18.8Y

ScrewPumps

LS 0800F

 22.0Kw 1.0 Pa △345-415V/Y600-720V 800 m3/h 37.0△/21.0Y

ScrewPumps
Working Principle of Leynow WX Dry Scroll Vacuum Pump

  • The WX dry scroll vacuum pump is based on single-sided scroll technology, integrating dry compression with a fully enclosed structure. The pump body consists of a fixed scroll and an orbiting scroll.

  • The motor drives the orbiting scroll to perform eccentric revolution, and the orbiting scroll moves along the internal track of the fixed scroll; continuously forming, moving, and shrinking crescent-shaped compression chambers; gas is drawn in from the inlet, compressed through the scroll chambers, and discharged from the central exhaust port.

  • Metal bellows static sealing, no rotating shaft seal, preventing process gas leakage; long-life lubricated bearings; maintenance only requires replacing the scroll tip seal without special tools, which can be done by the operator on-site.

  • The entire machine has low noise and low vibration, and is a well-proven dry vacuum solution for medium vacuum analytical instruments and scientific equipment.

Technical Information & Materials

Compiled technical reference materials related to vacuum pumps for selection, equipment commissioning, and troubleshooting.

Project Selection Reference Suggestions
  • Confirm core indicators: required ultimate vacuum, actual pumping volume;
  • Clarify the extracted medium: water vapor, dust, corrosive gases, etc., to determine whether filtration, condensation, or explosion-proofing is needed;
  • Confirm the usage environment: indoor/outdoor, on ships, high temperature and humidity, dust environment;
  • Usage mode: intermittent use or long-term continuous operation;
  • Standalone equipment or a complete central vacuum station.

Applicable Industries and Typical Processes

Covering precision processes in multiple fields, meeting various clean vacuum usage requirements.

Applicable Industries

Analytical Instrument Industry

Analytical Instrument Industry

Supporting various physical and chemical analytical instruments, providing clean and oil-free medium vacuum sources.

Semiconductor and Electronics Industry

Semiconductor and Electronics Industry

Processing of semiconductor and electronic devices, preventing oil vapor from contaminating workpieces.

Helium Leak Detection Equipment Industry

Helium Leak Detection Equipment Industry

Standard dry backing pump for helium mass spectrometer leak detectors, ensuring accurate leak detection data.

Gas Recovery Industry

Gas Recovery Industry

Recovery of inert and rare gases, with media protected from pump oil contamination.

Coating and Plating Industry

Coating and Plating Industry

Sample coating and surface treatment, dry and oil-free to protect film quality.

Scientific Research Laboratory Industry

Scientific Research Laboratory Industry

Experimental chambers in universities and research institutes, low noise suitable for indoor experimental environments.

Medical Precision Equipment Industry

Medical Precision Equipment Industry

Vacuum source for precision medical instruments, clean and oil-free.

High Energy Physics Equipment Industry

High Energy Physics Equipment Industry

Roughing vacuum units for high energy physics equipment and beamlines.

Typical Processes

Helium Mass Spectrometer Leak Detector Matching

Helium Mass Spectrometer Leak Detector Matching

As a dry backing pump for helium leak detection equipment, ensuring accurate and reliable leak detection results.

Turbo Molecular Pump Backing Pre-pumping

Turbo Molecular Pump Backing Pre-pumping

Dry and oil-free backing pump, protecting the molecular pump and building a complete high vacuum system.

Inert / Rare Gas Recovery

Inert / Rare Gas Recovery

Fully sealed structure, recovered gas is not contaminated by pump oil.

Sample Coating Processing

Sample Coating Processing

Sample coating and thin film deposition, oil-free to avoid film contamination.

Scientific Research Experimental Chamber Vacuum Pumping

Scientific Research Experimental Chamber Vacuum Pumping

Pre-pumping of various laboratory chambers, low noise suitable for indoor environments.

Glove Box Vacuum Pre-treatment

Glove Box Vacuum Pre-treatment

Pre-pumping of glove box chambers to obtain a clean medium vacuum environment.

Electronic Device Vacuum Processing

Electronic Device Vacuum Processing

Degassing and vacuum processing of electronic components, protecting device quality.

Built-in Vacuum Source for Small Complete Instruments

Built-in Vacuum Source for Small Complete Instruments

Directly embedded in equipment cabinets, serving as a built-in dry vacuum unit for the entire machine.

Usage Limitations: Not suitable for extracting large amounts of dust, highly corrosive media, or large amounts of condensable water vapor; a filter is recommended at the front end to protect the pump chamber; do not extract high-concentration oxygen media.

Selection Recommendation: For precision instruments, helium leak detection, and molecular pump backing, prioritize WX scroll dry pumps; for rough vacuum adsorption scenarios, oil-free carbon vane rotary vane vacuum pumps can be selected.

Customer FAQs

Answering various questions on dry vacuum pump selection, use, and maintenance.

What is the difference between a scroll vacuum pump and an oil-free carbon vane rotary vane pump?

Scroll pumps have non-contact fixed and orbiting scrolls, no carbon vane consumables, lower vibration and noise, fully sealed with no shaft seal leakage, and are more suitable for precision instrument leak detection and molecular pump backing; carbon vane rotary vane pumps rely on graphite carbon vane friction, and carbon vanes are consumables, making them more suitable for rough vacuum conditions such as CNC and packaging adsorption.

Can a scroll pump be used directly as a backing pump for a molecular pump?

The WX series dry scroll pump is an ideal dry backing pump for turbo molecular pumps. It is oil-free and will not contaminate the molecular pump and chamber, and is widely used in high vacuum analytical equipment.

Does "almost maintenance-free" mean no maintenance is required at all?

No; the main maintenance point is the scroll tip seal, which can be replaced on-site without returning to the factory; regularly check the intake filter; bearings are long-life lubricated, and periodic inspections are sufficient.

Is the scroll pump suitable for helium leak detection and rare gas recovery?

Highly suitable, fully static sealing with no shaft seal leakage; the pump chamber is dry and oil-free, will not contaminate helium and various rare gases, ensuring the purity of recovered gas.

Can you provide seal accessories and repair services?

Complete original factory scroll tip seals and intake filter accessories; providing technical consultation, troubleshooting, and factory repair and maintenance.

Do you have any questions about vacuum pump systems and solutions?

Please fill in your requirements carefully, and we will contact you within 24 hours.

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