China 30kw Industrial Oil Free Vsd Screw Air Blower Vacuum Pump With Plc Inverter Pm Motor oil free screw blower Supplier, Suppliers

The 30kW industrial oil-free VSD screw blower features a high-efficiency PM motor, PLC intelligent control and a precision-engineered screw air end. Its advanced rotor coating, FAG bearings, precision synchronous gears and reliable sealing system deliver clean, oil-free air, stable performance, high efficiency and long service life for demanding industrial applications.

Product Description

Product Specification & Features
Product Specification 1
Product Specification 2
Product Specification 3
Application Fields & Energy Efficiency
Under the same air volume and air pressure, the power consumption required by the screw blower is much smaller. The green part in the figure is the saved energy consumption. Compared with the traditional Roots blower, the screw blower may save up to 35%, the higher the pressure, the more significant the energy saving effect, and the average energy saving is 20%. The energy saving of oil-free blower can reach 20%-50%.
Application Overview 1
Application Overview 2
Application Overview 3
1. Sewage Treatment

Whether it is municipal sewage or corporate sewage (including textile printing and dyeing, leather, medicine, chemical industry, paper making, breeding and slaughtering, etc.), it must be treated up to the standard before it can be discharged into natural water bodies or recycled. In the sewage treatment process, a key link is the oxygen supply for biological treatment, that is, the aeration link. During the operation of several common process sewage treatment plants, the energy consumption of the oxygen supply system for biological treatment accounts for 50%-55% of the energy consumption of the whole plant. There is a lot of room for reducing the consumption of the biological treatment oxygen supply system. Choosing an efficient blower will directly bring considerable economic benefits.

2. Pneumatic Conveying

Pneumatic conveying-dilute phase-powder conveying in cement plant-powder conveying in petrochemical industry: Lower energy costs (up to 80% of blower life cycle costs), innovative screw blower technology resulting in less downtime for maintenance.

3. Fermentation

Lower energy costs (up to 80% of blower life cycle costs), innovative screw blower technology for lower maintenance downtime, extremely wide flow and pressure operating ranges. Nonwoven production, air knife, texturing flow adjustable to influence fiber properties, energy efficient blower capable of continuous 24/7 operation with low operating costs. Point-of-use installation without noise protection measures.

4. Desulfurization and Denitrification

In thermal power generation, steel, glass, chemical and other factories, a large number of boilers are burned, and the flue gas emitted by them contains a large amount of sulfur, nitrate and other substances, which seriously pollutes the atmosphere. This requires treatment such as desulfurization and denitrification before discharge, and can only be discharged into the atmosphere after reaching the standard. In desulfurization and denitrification facilities, oil-free screw blowers are required as oxidation fans.

Product Features & Engineering Precision
Engineering Features Diagram
  • 1. Adopt the world's leading high-efficiency molding line to create a stable and high-efficiency host.

  • 2. Advanced coating technology makes the rotor gap smaller, improves volumetric efficiency, and effectively protects the rotor for longer life.

  • 3. Adopt world famous brand FAG bearings to ensure operational reliability.

  • 4. Adopt international level 5 precision synchronous gear and driving wheel to ensure reliability and prolong service life.

  • 5. The labyrinth seal and screw seal assembly ensure that the air is free of oil, reaching the class zero level.

  • 6. The unique lubricating and oil draining channel ensures good lubrication and cooling of bearings and gears, while improving host efficiency.

Component Precision 1
Component Precision 2
Component Precision 3
Packing & Loading
Packing and Loading Facilities
Frequently Asked Questions (FAQ)
How much energy does a screw blower save compared to a Roots blower?
Under identical air volume and pressure, screw blowers can save on average 20% and up to 35% compared to traditional Roots blowers. For oil-free configurations, energy savings can reach between 20% and 50%, with higher working pressures delivering even more significant savings.
Why is the screw blower ideal for biological aeration in sewage treatment?
Aeration accounts for approximately 50% to 55% of the total energy consumed in biological sewage treatment plants. Because energy is the primary operating expense, the screw blower's superior efficiency directly cuts continuous operational costs and provides substantial economic return.
How does the blower achieve ISO Class Zero oil-free air quality?
The machine incorporates a dedicated labyrinth seal and screw seal assembly that completely prevents lubricating oil from entering the compression chamber, ensuring 100% oil-free, Class 0 air delivery.
What critical components ensure the durability of the host?
Durability is ensured by internationally recognized FAG bearings, international level 5 precision synchronous gears, and advanced rotor surface coatings that minimize clearance and wear while maximizing volumetric efficiency.
Can this equipment run continuously in continuous 24/7 industrial environments?
Yes, it is designed for demanding 24/7 continuous operation in applications such as fermentation, pneumatic powder conveying, and flue gas desulfurization/denitrification, supported by advanced lubrication and cooling channels.
Are special soundproofing measures required for installation?
Due to its smooth internal compression profile and engineered casing, it allows point-of-use installation without dedicated noise protection structures in many typical industrial layouts.

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