Your Professional Screw Vacuum Pump Supplier
Our company is a professional vacuum enterprise that produces water-type vacuum pumps, dry vacuum pumps, vacuum application equipment, vacuum technical services and consulting. The company constantly absorbs advanced technology, the process is gradually improved, the manufacturing equipment is excellent, and the product performance has reached the advanced level in China.The company has strong technical strength and has passed the quality management system certification. Advanced manufacturing equipment and perfect testing methods.
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![LGB Series Variable Pitch Screw Vacuum Pump]()
LGB Series Variable Pitch Screw Vacuum PumpLGB series variable pitch screw vacuum pump is a kind of dry vacuum pump without oil lubrication or water seal and no oil in pump cavity. Therefore, screw vacuum pump has incomparable advantages in
Why Choose Us
Product Application
The products are widely used in machinery, petroleum, chemical industry, electric power, papermaking, electronics, mining, gold, medicine, sugar making, printing and dyeing, plastic machine, building materials, food, water drainage, irrigation, water supply and other fields. The products sell well in China and gradually open up foreign markets, which has won the praise and trust of the majority of users.
Our History
Shandong Nade Vacuum Technology Co.,Ltd.(Formerly Zibo Boshan Shengze Industrial Pump Plant established in 2005), after 20 years of development, the product has developed from a single water ring vacuum pump to Roots vacuum pump, reciprocating vacuum pump, screw vacuum pump and vacuum application equipment.
Our Certificate
We Business license, quality management system certification, environmental management system certification, occupational health and safety management system certification
Production Market
Our products are exported to a wide range of 31 provinces and municipalities in China, Southeast Asia, South America, Russia and EU.
Types Of Screw Vacuum Pump
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Liquid-Injection Screw Vacuum Pump
This pump is designed to handle larger volumes of gas and liquid. It injects a small amount of liquid into the pump chamber as it operates. This liquid helps cool the pump and improve its ability to condense gases. The pump is often used in chemical plants, semiconductor manufacturing, and other industrial applications.
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Two-Stage Screw Vacuum Pump
This pump has two sets of rotors instead of one. It can achieve lower pressures than a single-stage screw pump. The first stage removes most of the gas, while the second stage does the final compression to create a vacuum. These pumps work well in systems that need less than 0.1 millitorr of pressure.
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Vane-And-Screw Hybrid Vacuum Pump
As the name suggests, this pump uses both a rotary vane and a screw mechanism. The vanes help with the initial gas compression, and then the screw takes over for the final compression. This design improves efficiency and allows the pump to work well at varying pressures. This makes it ideal for laboratories.
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Magnetic Screw Vacuum Pump
This pump uses magnets instead of handles to turn the rotors. It still has the screw shape but operates without any contact between the rotors and no lubrication. This makes it very clean and low-maintenance. These pumps are often found in places like solar panel production and pharmaceuticals where hygiene and reliability are key.
Product Paramenters
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Model |
LG-20 |
LG-50 |
LG-80 |
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Pumping Speed |
(m³/h) |
20 |
52 |
80 |
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Ultimate pressure |
(Pa) |
≤5 |
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Rated power |
(Voltage) |
380/220 |
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Frequency |
（Hz） |
50/60 |
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Rotary speed |
(rpm) |
2850/3400 |
2800/3400 |
2850/3400 |
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Motor power |
(kW） |
1.1 |
1.5 |
2.2 |
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Weight(without motor) |
(kg） |
55 |
90 |
110 |
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Inlet plate |
KF25 |
KF40 |
KF40 |
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Outlet plate |
KF25 |
KF25 |
KF40 |
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Noise |
dB(A） |
63 |
65 |
66 |
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Dimensions |
(mm) |
720*350*350 |
920*410*420 |
960*450*480 |
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Cooling method |
Air cooling |
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Lubricating oil |
T46 wear-resistant hydraulic oil/Fluorinated oil |
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Sealing confifiguration |
Inlet |
Magnetic force |
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Outlet |
Lip+PTFE shaft seal |
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Benefits Of Screw Vacuum Pump
Oil-Free Operation
One of the most significant benefits of Screw Vacuum Pumps is their oil-free operation. Unlike traditional vacuum pumps that use oil in the compression chamber, Screw Vacuum Pumps eliminate the risk of oil contamination, making them ideal for industries where purity is paramount, such as pharmaceuticals and electronics manufacturing.
Low Maintenance Requirements
These pumps require considerably less maintenance compared to oil-sealed counterparts. The absence of oil in the compression chamber means no regular oil changes, reducing downtime and operational costs.
Wide Operating Range
Screw Vacuum Pumps can efficiently handle a broad pressure range, from rough vacuum to high vacuum applications. This adaptability is invaluable in the manufacturing industry, as it caters to a diverse range of processes.
Energy Efficiency
Screw Vacuum Pumps are renowned for their energy efficiency. Their innovative design allows them to operate with minimal power consumption, contributing to cost savings and sustainability in manufacturing processes.
Environmental Friendliness
The absence of oil mist emissions is a significant environmental advantage of Screw Vacuum Pumps. This aligns with the manufacturing industry's increasing focus on sustainability and reducing its carbon footprint.
High Reliability
EScrew Vacuum Pumps are known for their reliability, which is crucial in manufacturing applications where any equipment downtime can lead to significant losses.
Applications of Screw Vacuum Pump
Fabrication Of Metals
Since Screw vacuum pumps can withstand the entry of polluted gases, which may cause corrosion, they are crucial in the heavy fabrication sectors. Controlling surface reactions is essential for producing the desired output while treating metal.
Mining, Oil And Gas Industries
For recovering carbon dioxide in flue gas compressors at a maximum temperature of 1000 fahrenheit, Screw vacuum pumps are particularly helpful. They are employed in the filling and cleaning of petroleum barrels using vacuum pumps. They are used for vacuum filtering during the dewaxing process, recovering petroleum vapour from storage tanks, and vacuum priming of pumps.
Manufacturing Of Plastics
The method of heating plastic sheets and spreading it over a mould is known as vacuum moulding. The sheet is drawn into the mould by a vacuum that is produced. The finished item is then removed from the mould. As vacuum pumps are used in this process, minimal forming pressures may be necessary, increasing process efficiency.
Medical Industries
Screw Vacuum Pump is a major component of steam sterilisers that is useful for cooling and drying surgical equipment in the medical field. For the purpose of removing ethylene chloride during the sterilising process, they are also utilised in sterilisers. Since medical industry is a sensitive one, vacuum pumps are used with utmost care.
Packing & Delivery
FAQ
We're well-known as one of the leading screw vacuum pump manufacturers in China. Please feel free to buy high quality screw vacuum pump made in China here from our factory. For customized service, contact us now.
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