ScrewPumps Complete Product Model List

LS 0020F 干式螺杆真空泵

LS 0020F 干式螺杆真空泵
电机功率1.1 Kw
极限真空3 Pa
额定电压AC△200-240V/Y345-415V
额定流量18 m3/h
Inquiry / unit
LS 0050F 干式螺杆真空泵

LS 0050F 干式螺杆真空泵
电机功率1.5 Kw
极限真空3 Pa
额定电压△200-240V/Y345-415V
额定流量46 m3/h
Inquiry / unit
LS 0080F 干式螺杆真空泵

LS 0080F 干式螺杆真空泵
电机功率2.2 Kw
极限真空3 Pa
额定电压△200-240V/Y345-415V
额定流量72 m3/h
Inquiry / unit
LS 0200F 干式螺杆真空泵

LS 0200F 干式螺杆真空泵
电机功率4.6 Kw
极限真空2.0 Pa
额定电压△345-415V/Y600-720V
额定流量180 m3/h
Inquiry / unit
LS 0270F 干式螺杆真空泵

LS 0270F 干式螺杆真空泵
电机功率7.5 Kw
极限真空5.0 Pa
额定电压△345-415V/Y600-720V
额定流量270 m3/h
Inquiry / unit
LS 0400F 干式螺杆真空泵

LS 0400F 干式螺杆真空泵
电机功率7.5 Kw
极限真空5.0 Pa
额定电压△345-415V/Y600-720V
额定流量396 m3/h
Inquiry / unit
LS 0540F 干式螺杆真空泵

LS 0540F 干式螺杆真空泵
电机功率15.0Kw
极限真空5.0 Pa
额定电压△345-415V/Y600-720V
额定流量540 m3/h
Inquiry / unit
LS 0800F 干式螺杆真空泵

LS 0800F 干式螺杆真空泵
电机功率22.0Kw
极限真空1.0 Pa
额定电压△345-415V/Y600-720V
额定流量800 m3/h
Inquiry / unit

Common Challenges in Industrial Vacuum Working Conditions

Slow Vacuum Pumping Speed, Affecting Production Cycle

Insufficient vacuum pump pumping speed leads to long waiting times in processes such as adsorption, feeding, and drying, slowing down the efficiency of the entire line.

Unstable Vacuum Degree, Low Process Yield

Poor pump body sealing or wear leads to a decrease in ultimate vacuum degree, affecting the consistency of processes such as coating, distillation, and molding.

Oil Contamination of Vacuum Chambers and Materials

Traditional oil-sealed pumps carry the risk of oil backflow, contaminating workpieces, coating chambers, or pharmaceuticals and food, causing quality hazards.

Incomplete Accessory Matching, Difficult Maintenance

Difficult procurement of filters, valves, and seals; lack of professional maintenance leads to long fault downtime.

Core Advantages of Leynow Screw Vacuum Pump

Dry and Oil-free, Clean Vacuum

Oil-free operation in the pump chamber, outputting clean vacuum; suitable for industries sensitive to oil contamination such as coating, pharmaceuticals, food, and electronics.

High Pumping Speed, Rapidly Establishing Vacuum

Precision screw rotor profile design, large pumping volume per unit time, shortening pumping time and improving production efficiency.

Multiple Specifications Covering Different Vacuum Requirements

Various pumping speeds and ultimate vacuum degrees available, can be used as a single pump or combined with Roots pumps and rotary vane pumps to form vacuum units.

Industrial Motor, Supporting Long-term Continuous Operation

IP54 protection rating, Class F insulation, optimized heat dissipation structure; suitable for 24-hour uninterrupted operation of production lines.

Dust and Condensable Gas Resistant, Strong Adaptability

Screw pumps have strong adaptability to working conditions containing a small amount of dust and condensable gases; equipped with filters, the maintenance cycle can be extended.

Complete Accessories, Professional Selection Technical Services

Original factory matching of filters, valves, and seals; selection calculation based on vacuum degree, pumping speed, and medium working conditions, with maintenance support provided.

Product Specifications & Parameters

Product Model Motor Power Ultimate Vacuum Rated Voltage Rated Flow Rated Current Industry Application

LS 0020F

 1.1 Kw 3 Pa AC△200-240V/Y345-415V 18 m3/h 3.0 A 真空脱气 真空干燥 真空镀膜 真空冻干 真空浓缩 真空检漏 真空除泡 真空反应

LS 0200F

 4.6 Kw 2.0 Pa △345-415V/Y600-720V 180 m3/h 9.0△/5.2Y 真空干燥 真空镀膜 真空冻干 真空浓缩 真空检漏 真空除泡 真空反应

LS 0400F

 7.5 Kw 5.0 Pa △345-415V/Y600-720V 396 m3/h 16.7△/9.6Y 真空脱气 真空干燥 真空蒸馏 真空成型 真空镀膜 真空冻干 真空浓缩 真空检漏 真空除泡 真空反应 真空炉 晶圆刻蚀

LS 0540F

 15.0Kw 5.0 Pa △345-415V/Y600-720V 540 m3/h 32.5△/18.8Y 真空包装 真空蒸馏 真空镀膜 真空冻干 真空浓缩 真空检漏 真空烧结 真空热处理 真空反应 真空炉 晶圆刻蚀

LS 0800F

 22.0Kw 1.0 Pa △345-415V/Y600-720V 800 m3/h 37.0△/21.0Y 真空包装 真空干燥 真空蒸馏 真空镀膜 真空浸渍 真空冻干 真空检漏 真空烧结 真空热处理 真空注型 真空浸漆 真空反应 真空炉 晶圆刻蚀
Working Principle of Leynow Screw Vacuum Pump

  • The Leynow screw vacuum pump is a positive displacement dry mechanical vacuum pump. Inside, a pair of intermeshing screw rotors rotate synchronously in opposite directions within the pump chamber to complete the suction, compression, and discharge of gas. After the gas enters the pump chamber, it is pushed to the exhaust port by the sealed cavity formed by the gap between the rotors and the pump body, achieving vacuum pumping.

  • Because a tiny gap is maintained between the rotors and between the rotors and the pump chamber, no oil lubrication and sealing are required, and an oil-free clean vacuum can be obtained. Equipped with a cooling system (such as jacket cooling or air cooling) and a gas ballast device, it can adapt to working conditions containing a small amount of water vapor or condensable gases.

  • Its structural characteristics make the pump have a wide pumping speed range, smooth operation, and low vibration and noise. It is widely used in industrial vacuum processes sensitive to oil contamination and can also be used as a backing pump for Roots pumps.

Applicable Industries and Typical Processes

Leynow screw vacuum pumps are suitable for industrial production, scientific research experiments, and vacuum unit matching scenarios with high cleanliness requirements. Standalone or backing pump solutions can be provided according to process requirements.

  • Screw vacuum pumps belong to dry mechanical vacuum pumps, relying on screw rotor gap sealing. The working pressure range is typically 101325~1 Pa (depending on the model), suitable for the range from atmospheric pressure to medium vacuum.

  • The pump features no oil contamination, low energy consumption, stable operation, and convenient maintenance. It is suitable for various processes sensitive to oil contamination and requiring clean vacuum.

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

Applicable Industries
Automation Equipment Industry

Automation Equipment Industry

Vacuum source for vacuum adsorption, handling, and sorting stations on automated assembly lines.

Plastic Powder Material Conveying Industry

Plastic Powder Material Conveying Industry

Vacuum feeding, suction, and conveying of plastic pellets and powders.

Electronics and Photovoltaics Industry

Electronics and Photovoltaics Industry

Vacuum processes such as coating, etching, packaging, and adsorption.

Chemical and Pharmaceutical Industry

Chemical and Pharmaceutical Industry

Vacuum processes such as distillation, drying, degassing, filtration, and solvent recovery.

Woodworking CNC Machining Industry

Woodworking CNC Machining Industry

Vacuum adsorption and clamping of panels, sawdust dust extraction.

Environmental Water Treatment Industry

Environmental Water Treatment Industry

Vacuum priming, vacuum degassing, and sludge conveying assistance.

Typical Processes
CNC Panel Vacuum Adsorption and Clamping

CNC Panel Vacuum Adsorption and Clamping

Negative pressure adsorption and fixing of panels for woodworking and stone CNC equipment.

Vacuum Feeding and Suction of Powder Materials

Vacuum Feeding and Suction of Powder Materials

Automatic negative pressure feeding and conveying of plastic pellets and powders.

Vacuum Drying and Degassing

Vacuum Drying and Degassing

Vacuum drying and degassing treatment for chemicals, pharmaceuticals, and food.

Vacuum Distillation and Solvent Recovery

Vacuum Distillation and Solvent Recovery

Chemical distillation, solvent recovery, and vacuum filtration.

Printing Paper Adsorption and Conveying

Printing Paper Adsorption and Conveying

Paper separation and negative pressure conveying in printing presses.

Vacuum Coating and Etching

Vacuum Coating and Etching

Vacuum pumping for coating chambers in electronics, photovoltaics, and optics.

  • Usage Limitations: Not suitable for extracting large amounts of dust, highly corrosive, or high-temperature gases; an intake filter must be installed at the front end for dusty working conditions; anti-corrosion or special material models need to be selected for corrosive gases; the inlet and outlet must not be completely closed during operation, as this will cause overheating and damage.

  • Selection Recommendations: For vacuum adsorption and vacuum feeding, prioritize direct atmospheric discharge screw pumps; for high-vacuum working conditions such as coating, distillation, and drying, choose screw vacuum units; when selecting, please provide pumping speed, ultimate vacuum degree, and medium working conditions. It is recommended to reserve a 10-20% performance margin.

Customer FAQs

How to choose between a screw vacuum pump and a Roots vacuum pump?

Screw pumps can be used independently, are dry and oil-free, and are suitable for medium-high vacuum working conditions containing a small amount of dust or condensable gases; Roots pumps are usually used as booster pumps and need to be used with a backing pump. For high vacuum and high pumping speed working conditions, a vacuum unit composed of a screw pump + Roots pump can be selected. Selection needs to be calculated based on the target vacuum degree, pumping speed, and medium working conditions; it is recommended to reserve a 10-20% margin.

Can a screw vacuum pump extract gases containing dust or corrosive gases?

Standard screw pumps can extract gases containing a small amount of dust and condensable gases, but a filter must be installed at the front end for dusty working conditions; for highly corrosive gases, anti-corrosion or special material models need to be selected, please consult an engineer.

Does a screw vacuum pump need oil?

The screw pump chamber operates oil-free, but the gearbox needs lubricating oil, please replace it regularly according to the manual; the oil-free pump chamber design provides a clean vacuum and avoids contamination of the process chamber.

What supporting accessories are needed for a screw vacuum pump?

Commonly used: intake filter (mandatory for dust prevention), vacuum valves, check valves, buffer tanks, vacuum gauges, etc.; Leynow can supply the complete set.

Can you provide accessories and repair and maintenance?

Yes, complete accessories such as filters, valves, and seals; 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.

Products
Oil-free Vacuum Pump Rotary Vacuum Pump Dry Vacuum Pump Roots Vacuum Pump Oilless Compressor Side Channel Blower