Vacuum Pump Oil · High Vacuum · Low Vapor Pressure

Dedicated Vacuum Pump Oil · Total Solutions

Leynow LEYNOW Vacuum Pump Oil | Deeply refined base oil + imported additives, suitable for rotary vane vacuum pumps, slide valve vacuum pumps, and diffusion pumps, stably maintaining ultimate vacuum.

  • Low vapor pressure, stable vacuum

  • Antioxidant, long oil change cycle

  • Anti-emulsification, fast oil-water separation

  • Factory direct supply, nationwide shipping

Get a Quote NowConsult Oil Selection
Vacuum Pump Oil

Leynow Vacuum Pump Oil Series

VACUUM PUMP OIL

≤1×10⁻⁴Pa Vapor Pressure (20℃)
≥220℃ Flash Point (Open Cup)
46~100mm²/s Viscosity Grade
≤5min Demulsification Time

Are You Experiencing These Equipment Failures?

Decreased vacuum, blackened oil, pump body wear, frequent oil changes—these problems are mostly related to oil selection and usage. Early troubleshooting leads to early resolution.

Vacuum degree cannot increase

Using low-quality oil with high volatility, the negative pressure in the pump cavity cannot meet process requirements, resulting in decreased production efficiency and an increased product defect rate.

Oil easily blackens and cokes

Ordinary oil cannot withstand high speed and high temperature, emulsifying and carbonizing in a short period. Frequent oil changes increase maintenance costs and delay production progress.

Pump body wear and loud noise

Insufficient lubrication performance aggravates wear on rotary vanes and bearings, shortens equipment lifespan, and keeps maintenance parts costs high.

Misusing alternative oils damages equipment

Hydraulic oil and engine oil cannot replace vacuum pump oil. Misuse easily causes oil leakage, oil spraying, and directly burns out the vacuum pump.

Core Advantages of Our Vacuum Pump Oil

From base oil quality and additive formulas to supply and technical support, we provide stable and reliable oil guarantees for vacuum pump users.

Extremely Low Volatility, High Vacuum Stability

Selected high-quality base oil, pure fractions, low saturated vapor pressure, continuously and stably maintaining ultimate vacuum, meeting various working conditions such as vacuum packaging, adsorption, and industrial vacuum pumping.

Strong Lubrication & Anti-Wear Protection for Pump Body

Excellent anti-wear, anti-rust, and anti-corrosion formula for comprehensive protection of rotary vanes, bearings, and pump cavities, reducing operating noise and effectively extending the service life of the vacuum pump.

High Temperature Resistance & Anti-Oxidation, Not Easy to Deteriorate

Strong thermal stability under high-speed continuous operation and oil-cooled conditions, delaying oxidation and blackening, reducing carbon deposits, effectively extending the oil change cycle, and lowering operation and maintenance costs.

Complete Models, Wide Adaptability

Complete range of mineral oils and fully synthetic oils, compatible with domestic and imported vacuum pumps, comparable to dedicated oils such as Leybold LVO series, VM100, VG100, etc.

Source Manufacturer, Outstanding Cost-Effectiveness

No middleman markups, supplying both large and small batches, fast delivery from stock, samples available for testing, and transparent quotations.

Professional Technical Selection Support

Don't know which model to choose? Just provide the equipment model and we will help you match the most suitable vacuum pump oil, along with technical guidance on oil changes and filling maintenance.

Main Vacuum Pump Oil Model Parameters

5 main models cover all scenarios from micro pumps to large industrial pumps. Simply select the appropriate viscosity grade based on pump type, speed, and working conditions.

Oil ModelCore FeaturesCompatible EquipmentTypical Application Scenarios
46# Vacuum Pump OilLow viscosity, good fluidity, good low-temperature performanceMicro and small vacuum pumpsLight negative pressure, small vacuum equipment
68# Vacuum Pump OilModerate viscosity, highly cost-effective general modelConventional oil Rotary Vane Vacuum PumpsGeneral industrial vacuum pumping, vacuum packaging
100# Vacuum Pump Oil (Mainstream Hot Seller)Wear-resistant and high-temperature resistant, most versatileBaosi, Value, Huifeng, Sifang and other domestic pumpsIndustrial continuous operation, high-speed vacuum equipment
150# / 200# Vacuum Pump OilHigh viscosity, heavy load and high pressure resistanceLarge industrial vacuum pumpsHeavy industry, metallurgical large vacuum working conditions
Fully Synthetic Vacuum Pump OilLong life, low volatility, high and low temperature resistanceLeybold, Edwards, ULVAC imported pumpsPrecision equipment, scientific research, high-end manufacturing

Comparable Dedicated Oils 7 options available · Can replace imported OEM oils

LVO100
LEYBOLD

Commonly used oil for Leybold rotary vane pumps, suitable for medium and low vacuum conditions, highly versatile.

Rotary vane pump compatible
LVO108
LEYBOLD

Medium viscosity vacuum pump oil, suitable for Leybold series rotary vane pumps, good oxidation resistance.

Medium viscosity general
LVO130
LEYBOLD

High viscosity vacuum pump oil, suitable for large rotary vane pumps and high-load continuous operations.

High load conditions
VM100
LEYBOLD

Leybold high vacuum pump oil, low vapor pressure, suitable for conditions requiring high vacuum degree.

High vacuum degree
VG100
LEYBOLD

Leybold general-purpose vacuum pump oil, suitable for conventional rotary vane pumps and industrial vacuum pumping equipment.

General purpose
UL19
ULVAC

ULVAC dedicated oil for rotary vane pumps, suitable for Japanese vacuum pumps, good vacuum stability.

Japanese pump compatible
N62
ULVAC

ULVAC diffusion pump/rotary vane pump oil, low backstreaming, suitable for high vacuum systems.

Diffusion pump / High vacuum

Need a comparable alternative for a specific imported oil?

Send us the OEM model number and we will match the corresponding domestic oil. Samples for testing and bulk orders are supported.

Consult Comparable Models Now

Explore Our Vacuum Pump Oil Series

Three types of oil cover common models such as rotary vane vacuum pumps, slide valve vacuum pumps, and diffusion pumps, and can be selected according to pump type, working conditions, and vacuum degree requirements.

Vacuum Pump Oil Technical Information

From vapor pressure, viscosity, oxidation resistance, to emulsion resistance, we sort out the key technical points for the selection and use of vacuum pump oil.

The above technical information is compiled based on the application of Leynow Vacuum Pump Oil under typical working conditions. For specific selection, please confirm based on the actual pump model and working condition parameters.

Compatible Brands and Application Industries

Compatible with mainstream domestic and imported vacuum pump brands, covering various equipment types such as rotary vane pumps, screw pumps, and diffusion pumps, with a wide range of application scenarios.

Vacuum Pump Brands 14 Brands

Busch Vacuum Pump

Busch

Busch

German manufacturer of vacuum pumps and vacuum systems, with a complete product line of rotary vane pumps and screw pumps.

Rotary Vane / Screw
Leybold Vacuum Pump Oil

Leybold

Leybold

German vacuum pump brand, commonly used in imported equipment, suitable for LVO series dedicated oils.

Imported pump compatible
Becker Vacuum Pump

Becker

Becker

German brand of vacuum pumps and compressors, with wide applications of rotary vane pumps and claw pumps.

Rotary Vane / Claw Pump
Pfeiffer Vacuum Pump

Pfeiffer

Pfeiffer

German brand of vacuum technology and equipment, commonly used in semiconductors, coating, and scientific research.

High Vacuum System
Leynow Vacuum Pump

Leynow

Leynow

Vacuum pump and oil-free compressor brand under Leynow Electromechanical, with matching oils supplied simultaneously.

OEM Matching
Baosi Vacuum Pump

Baosi

Baosi Vacuum

Domestic brand of vacuum pumps and compressors, with a complete product line of rotary vane pumps and screw pumps.

Rotary Vane / Screw
Value Vacuum Pump

Value

VALUE

Common domestic rotary vane vacuum pump brand, widely used in industrial vacuum pumping scenarios.

Rotary Vane Pump Compatible
Edwards Vacuum Pump

Edwards

Edwards

British vacuum pump brand, commonly used in semiconductors and scientific research, with high requirements for oil.

High-End Compatible
Rietschle Vacuum Pump

Rietschle

Rietschle

German brand of vacuum pumps and blowers, with a complete product line of rotary vane pumps and vortex blowers.

Rotary Vane / Air Pump
ULVAC Vacuum Pump

ULVAC

ULVAC

Japanese vacuum equipment brand, commonly used in high-end manufacturing, coating, and semiconductor industries.

High-End Manufacturing
EUROVAC Vacuum Pump

EUROVAC

EUROVAC

European vacuum pump brand, with a wide range of applications in vacuum systems and supporting equipment.

Vacuum System
ZD Vacuum Pump

ZD

ZD

Domestic vacuum pump brand, with more applications in rotary vane pumps and vacuum system integration.

Vacuum System Integration
JOYSUN Vacuum Pump

JOYSUN

JOYSUN

Domestic vacuum pump brand, with common demands for rotary vane pumps, vacuum units, and matching oils.

Rotary Vane / Unit
KYKY Vacuum Pump

KYKY

KYKY

Domestic brand of vacuum equipment and scientific instruments, widely used in scientific research and coating fields.

Scientific Research / Coating

Applicable Equipment Types 6 Types of Equipment

Oil Rotary Vane Vacuum Pump

Oil Rotary Vane Vacuum Pump

Rotary vane pump using oil as sealing and lubricating medium, requiring low vapor pressure vacuum pump oil to maintain vacuum degree.

Rotary Vane Sealing & Lubrication
Oil-Cooled Vacuum Pump

Oil-Cooled Vacuum Pump

Uses oil circulation to remove heat, with higher requirements for high-temperature resistance and oxidation resistance of the oil.

High Temp Resistant & Anti-Oxidation
Micro Vacuum Pump

Micro Vacuum Pump

Small negative pressure equipment, mostly selecting 46# / 68# low viscosity oil, balancing low-temperature startup and vacuum stability.

Small Negative Pressure Equipment
Oil-Lubricated Screw Vacuum Pump

Oil-Lubricated Screw Vacuum Pump

Continuous operation conditions, with high requirements for oil anti-wear, anti-rust, and oil change cycles.

Continuous Heavy-Duty Operation
Vacuum Packaging Machine

Vacuum Packaging Machine

Commonly used in food, electronics, and daily chemical packaging, requiring low volatility and stable vacuum degree of the oil.

Packaging Vacuum Pumping
Mechanical Vacuum Pump

Mechanical Vacuum Pump

Generally refers to various oil mechanical vacuum pumps, providing backing vacuum for scientific research, coating, electronics, and other systems.

Backing Vacuum Pumping

Nationwide Service Coverage 11 Provinces & Cities · Bulk Shipping

Covering Major Industrial Areas Nationwide

Supporting both large and small bulk shipments, logistics time for regular areas is 1-3 days, and urgent orders can be coordinated to ship the same day.

SOUTH CHINA
GuangdongDongguanShenzhen
EAST CHINA
ShanghaiJiangsuZhejiangShandong
NORTH CHINA
Beijing
CENTRAL CHINA
HunanHubei
SOUTHWEST CHINA
Sichuan
OTHER REGIONS
Nationwide ShippingDirect Logistics Delivery
Shipping is also available to unlisted areas. Please confirm the logistics plan before placing an order; we will assist in arranging the most optimal freight.
In StockShip Same DayNationwide Direct Shipping

Frequently Asked Questions

Clarifying common questions about selection, oil changes, mixing, and bulk purchasing all at once. If you still have questions, feel free to contact us.

Can vacuum pump oil be replaced by hydraulic oil or engine oil?

Replacement is not recommended. The core indicator of vacuum pump oil is low saturated vapor pressure; hydraulic oil and engine oil have high volatility, and replacement will directly cause insufficient vacuum, carbon buildup in the pump, and damage to equipment.

Should I choose 46#, 68#, or 100# for the vacuum pump?

For small low-temperature equipment, choose 46# / 68#; for the vast majority of industrial rotary vane vacuum pumps, prioritize the hot-selling 100# vacuum pump oil; for large heavy-duty equipment, choose 150-200#. If unsure, you can provide the pump model and we will help you select.

What happens if too much vacuum pump oil is added?

Overfilling will cause oil spraying, oil leakage, pump body heating, increased noise, and decreased vacuum. Strictly fill according to the oil level scale.

How often should vacuum pump oil be changed?

Change every 3-6 months under normal working conditions; shorten the cycle in harsh environments with heavy dust and water vapor. Regular oil changes protect the pump body and reduce maintenance costs.

Is vacuum pump oil a refined oil product? Can it be purchased in bulk?

Vacuum pump oil is a special lubricating oil. We support sample testing, small batch, and large batch orders, and can provide corresponding vacuum pump oil quotations.

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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