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Multi-Stage Rotary Blowers Manufacturers

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Multi-Stage Rotary Blowers

— Excellence in Manufacturing —

Extended Pressure Capability for Complex Processes

Multi-stage rotary blowers utilize a series of lobe stages to achieve higher pressures than single-stage units. By compressing the air or gas incrementally, these blowers can reach discharge pressures exceeding 100kPa while maintaining the efficiency and oil-free benefits of the rotary lobe design. This makes them ideal for deep-water aeration and long-distance pneumatic conveying.

Our Products

— Premium Quality Solutions —

High flow inlet multi-stage centrifugal blower
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High flow inlet multi-stage centrifugal blower

Inlet flow rate 15-1500m³/min Relative humidity 20~85% Noise ≤84dB(A)

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Air Bearing Turbo Blower
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Air Bearing Turbo Blower

Efficiency >97% Range 25 HP ~400 HP Impeller Efficiency 92%

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Roots Vacuum Pump
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Roots Vacuum Pump

Flow Rate 0.6 ～ 713.8m³ / min Vacuity dry-49kPa, wet-68kPa Applicable Speed 500 ~ 2000RPM

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Low Noise Rotary Blower For Sewage Treatment
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Low Noise Rotary Blower For Sewage Treatment

Flow rate 0.278-5.41m³/ min Boost 0.1-0.5kgf/cm² Applicable speed 390-580RPM

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Pneumatic Conveying Roots Blower
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Pneumatic Conveying Roots Blower

Flow Rate 0.6 ～ 713.8m³ / min Raising Pressure 9.8 ～ 98kPa Applicable Speed 500 ~ 2000RPM

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Low flow inlet multi-stage centrifugal blower
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Low flow inlet multi-stage centrifugal blower

Inlet flow rate 15-1500m³/min Relative humidity 20~85% Noise ≤84dB(A)

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Maglev Turbo Blower
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Maglev Turbo Blower

Voltage (v) 380/690 Noise level (dB) ＞ 80 Flow rate (m3/min) latm, 20 ℃

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Instrument Cabinet Next To The Blower
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Instrument Cabinet Next To The Blower

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BSG series screw blower
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BSG series screw blower

Maximum Boost 200kpa Maximum Boost 200kpa Maximum Boost 200kpa

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High Pressure Air Suspension Turbo Blower-Energy Saving&Eco-friendly
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High Pressure Air Suspension Turbo Blower-Energy Saving&Eco-friendly

Output Power 30 ~ 400 hp Efficiency and Power Factor ≥ 95 % Insulation H Class (180ºC)

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Rotary Sliding Vane Blower
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Rotary Sliding Vane Blower

Motor 0.75kw-4 Frequency 50HZ / 60HZ Flow capacity 0.59-0.66m3/min

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XRQ Soft Start Cabinet
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XRQ Soft Start Cabinet

Base voltage 25 ~ 75% Applicable motor 5.5KW ～ 500KW Output signal 30VDC or 220VAC 5A

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Turbo Blower
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Turbo Blower

Pressure Rise 60kpa-80kpa Flow Capacity 42-51m3/Min Noise 78 dB(a)

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XBQ Frequency Conversion Starting Cabinet
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XBQ Frequency Conversion Starting Cabinet

Frequency Range 0-400HZ Maximum voltage output 380V Rated frequency 50HZ±5％

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Centrifugal Turbo Blower-Air Suspension High Speed Motor
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Centrifugal Turbo Blower-Air Suspension High Speed Motor

Output Power 30 ~ 400 hp Efficiency and Power Factor ≥ 95 % Insulation H Class (180ºC)

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Sound Enclosure For Roots Blower
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Sound Enclosure For Roots Blower

Noise 77 dB Weight 400kg Rated Voltage 380V

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Rotary Blower for Delivery Clean Air in Water Treatment Plant
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Rotary Blower for Delivery Clean Air in Water Treatment Plant

Weight 150kg Rotation speed 550rpm Flow capacity 0.5-3m3/min

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Industrial Stainless Steel Roots MVR
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Industrial Stainless Steel Roots MVR

Flow Rate 0.6 ～ 120m³ / min Raising Pressure 9.8 ～ 70kPa Applicable Speed 500 ~ 2000RPM

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Roots Blower Acoustic Enclousure
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Roots Blower Acoustic Enclousure

Model NO. RH-A-02 HS Code 8414599010 Production Capacity 100000PCS/Year

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BYG series screw blower
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BYG series screw blower

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Control System PLC Programmable Control Cabinet
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Control System PLC Programmable Control Cabinet

Rated working voltage AC220、DC24 Rated working current 0-5 Sampling current 0-20、4-20

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Submersible Roots Blower
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Submersible Roots Blower

Flow Rate 0.6 ～ 120m³ / min Raising Pressure 9.8 ～ 98kPa Applicable Speed 500 ~ 2000RPM

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Anti-corrosion Roots Blower
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Anti-corrosion Roots Blower

Flow Rate 0.6 ～ 713.8m³ / min Raising Pressure 9.8 ～ 98kPa Applicable Speed 500 ~ 2000RPM

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High Temperature And High Pressure Roots Blower
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High Temperature And High Pressure Roots Blower

Flow Rate 0.6 ～ 713.8m³ / min Raising Pressure 9.8 ～ 98kPa Applicable Speed 490/580/730/980/1450RPM

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Pioneering Multi-Stage Design

With 30 years of professional engineering, Nantong Rongheng is at the forefront of multi-stage rotary technology. Our "sincere" commitment to R&D allows us to provide high-pressure solutions that are both energy-efficient and mechanically simple.

Pressure Peak Up to 150kPa+
Cooling Stage Integrated Intercoolers
Efficiency Optimized Compression Curve
Rotor Design Precision Synched Lobe Sets

High-Pressure Applications

  • Deep-well wastewater treatment
  • Long-distance ash conveying
  • Chemical reactor injection
  • MVR (Mechanical Vapor Recompression)

Thermal Management Materials

We utilize heat-treated alloys that maintain tight clearances even at the higher temperatures generated during multi-stage compression.

High-Head Performance Features

  • Staged compression reduces thermal stress on each individual stage.
  • Integrated inter-stage cooling maintains air density for maximum efficiency.
  • Compact vertical or horizontal tandem configurations to fit facility layouts.

Custom Pressure Systems

Every multi-stage unit is tailored to the specific pressure and flow requirements of the project, including specialized cooling loops and bypass control.

FAQ

  • Q: Are multi-stage blowers still oil-free?
  • A: Yes, like our single-stage units, the compression chamber remains 100% oil-free.
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If you would like to learn more about our products, please feel free to contact us and we will do our to assist you.

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About Our Company

Nantong Rongheng Environmental Equipment Co.,Ltd.

My country's three-blade Roots blower originated from Cao's enterprise. After thirty years of professional history, it has been famous at home and abroad for its products and sincere and sincere character.

Nantong Rongheng Environmental Protection Equipment Co., Ltd. is a professional company engaged in the development, manufacturing, sales and service of various types of blowers, vacuum pumps and other products. Products cover general-purpose three-blade roots blowers, explosion-proof three-blade roots blowers, anti-corrosion three-blade roots blowers, high temperature and high-pressure three-blade roots blowers and units, three-blade roots vacuum pumps and units, rotary fans, Various safety valves, muffler devices, etc. China Multi-Stage Rotary Blowers Manufacturers, Custom Multi-Stage Rotary Blowers Suppliers and Multi-Stage Rotary Blowers Factory.

Nantong Rongheng Environmental Equipment Co.,Ltd. Facilities
Since 1990

Our Manufacturing Excellence

— 30 Years of Professional Expertise —

30

Three Decades of Excellence

Our three-blade Roots blower originated from Cao's enterprise. With thirty years of professional history, we have established ourselves as a trusted name both domestically and internationally, renowned for our reliable products and sincere business character.

P

Comprehensive Product Range

We specialize in the development, manufacturing, sales, and service of various types of blowers and vacuum pumps. Our extensive product portfolio ensures we can meet diverse industrial requirements.

E

Advanced Processing Equipment

Equipped with advanced CNC machinery and automated production lines, ensuring high precision, stable performance, and consistent product quality throughout manufacturing.

T

Advanced Technical Capabilities

Our engineering team continuously innovates to provide cutting-edge solutions in blower technology, ensuring optimal performance and efficiency for all our products.

Our Product Categories

General-Purpose Blowers

Standard three-blade roots blowers for various industrial applications.

Specialized Blowers

Explosion-proof, anti-corrosion, and high-temperature models for challenging environments.

Vacuum Pump Systems

Complete three-blade roots vacuum pumps and units for industrial vacuum applications.

Accessory Equipment

Rotary fans, safety valves, muffler devices, and other related equipment.

30+
Years Experience
500+
Products Developed
50+
Countries Served
10000+
Units Manufactured

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