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Oil Dry Screw vacuum screw pump
  • Oil Dry Screw vacuum screw pump
Packaging: Wooden Package
Transportation: Ocean,Land
Supply Ability: 5000piece/Year
Port: Port of Shanghai,Port of qingdao,Port of wuxi
Basic Info
Product Description


Vacuum Equipment Liquid Vacuum Pump VDP-type Variable-Pitch Screw vacuum pump is composed of a pair of variable pitch screw rotors which meshes in the opposite and synchronous way in the pump casing to complete the intake and exhaust cycle. Variable-Pitch Screw vacuum pump compresses Two Stage Water Ring Vacuum Pump the medium more efficiently with energy saving and lower temperature than constant pitch screw vacuum pump. Without any lubricants in the housing, it is perfect for medium recycling and environmental protection, which is the best upgrading products for oil-sealed, steam-jet and liquid ring pumps. The variable pitch screw rotor can be customized and manufactured in order to best fit for clients' requirements.


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Main Characteristics

• Higher pumping efficiency and lower energy consumption compared with constant pitch Screw Pump
• Wide pumping rate range with direct discharge to Atm. and high ultimate vacuum of 5 Pa with single stage design.
• Easy cleaning and maintenance with N2 purging.
• High strength and stability of screw rotor made of ductile iron
• No contact and friction between screw rotors with no lubricants and no any waste emission and low energy consumption.
• Anti-corrosive coating for internal wet surfaces fitting for the chemical and pharmaceutical industries.

• Precise dynamic balance of screw rotors with smooth operation having lower noise, smaller vibration and longer service life.

Performance Curve

type Oil-free Variable Pitch Dry Screw Vacuum Pump 2

Model sizes

type Oil-free Variable Pitch Dry Screw Vacuum Pump 3

Our Logistics

Vacuum Screw Pump

Our Exhibition

Vacuum Screw Pump

company culture

Vacuum Screw Pump



1: What kind terms of payment can be accepted?
A: For terms of payment, L/C, T/T, D/A, D/P, Western Union (can be) could accepted

2: What about the delivery time?
A: 7 days after receiving the payment.

3: What about the warranty time?
A: 12 months after shipment or 2000 working hours, whichever occuts first.

4. What about the Minimum Order Quantity?

A: The MOQ is 1 pcs.

5. Can you support customization?

A: Yes. We support OEM. You only need to provide product specifications and design drawings. The customized moq is 1 pcs.

6.Our yuanhang supply chain China product acquisition platform, 500+ China source factory direct supply.

500+ China source factory direct supply.



Lvsong Sci-Tech Group self-owns the import and export business of the Proprietary and agent products in various fields. The group is constituted by the eight subsidiary companies, which are Changzhou Lvsong International Trading company (Yuanhang supply chain platform for Chinese products), Jiangyin Tiantian Vessel Manufacturing Co., Ltd , Jiangyin Lvsong Machinery Co., Ltd., Jiangyin Elmvacuum Equipment Co., Ltd., Wuxi Runjiutian Machinery Co., Ltd., Jiangsu ZhiLin Aerospace Equipment Technology Co., LTD., NIKKO (Changzhou) International Trading Co., LTD., and Tangzhuang Ecological Park. Our group has about workshops of 90-thousands m2, including various modern plants and kinds of advanced production equipments. After more than 10-years development, Lvsong Sci-Tech Group focuses on its major business, and create various new products, and keep up with the new revolution and upgrading. Now we become a comprehensive group providing various products such as the pressure vessels, vacuum equipments, engineering structural parts, electrical control cabinet and ecological agricultural products.

Lvsong Sci-Tech Group adheres to the management philosophy of Science and technology driven innovation, the first-class quality, and customer first, and gets rapid development under the support the abundant inland and out-land resources, the advanced technologies and equipments as well as the scientific management thoughts. Lvsong Sci-tech Group has built eight famous brands, which are the brand of "TianTian" for the pressure vessels, the brand of "Lvsong" for the precision structural parts, the brand of "Elmvac" for the vacuum equipments, the brand of "Runjiutian" for the control cabinets, the brand of "TangYuan " for the green agricultural products, the brand of "ZhiLin Aerospace" for the military products, the brand of "NIKKO" for the international trading of hydraulic and pneumatic equipment, machine and environmental tools, the brand of "Little Green Pin Tree" for the import and export business. All these brand products of Chinese origin can be delivered to the world, and we are also willing to introduce the world goods into China's inland circulation industry chain. Subsidiary companies have won various honorary titles such as the Provincial High-Tech enterprise, Jiangsu small and medium enterprises of science and technology, provincial private enterprises of science and technology.

In the future, Lvsong Sci-Tech Group will adhere to the quality policy of "Science and technology driven innovation, and the first-class quality" with the professional spirit, and further take advantages of the flexible mechanism of sci-tech private enterprises, to realize a beautiful vision among the enterprise, customers, employees and the society by the lean development and customized services.

Company Info
  • Representative: Tang Jie
  • Product/Service: Vacuum Equipment , Hardware accessories , Chemical , Engineering Machinery , Pressure Vessel , Metal Structure
  • Capital (Million US $): US$746500
  • Year Established: 2019
  • Total Annual Sales Volume (Million US $): US$5 Million - US$10 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): US$5 Million - US$10 Million
  • No. of Production Lines: 5
  • No. of R&D Staff: 11 -20 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: no
  • Factory Size (Sq.meters): 50,000-100,000 square meters
  • Factory Location: 1-2 Longgang Road, Ligang Street, Jiangyin City
  • Contact Person: Ms. yoyo
  • Tel: +86-0519-4008282159
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