August 09, 2025

C90 Electric Power Oil Free Vacuum Pump

Model NO.: C90
Rotating Speed: 0-3550 Rpm
Motor Power: 55-185 Kw
Driving Method: Coupling Drive
Net Weight: 2.48-5.15 Ton
Type of Technology: Centrifugal Blowers
Medium: Air, Neutral Gases
Conveying: Oil-Free
Certificate: ISO9001 and CE Certificate
Noise: Under 80dB
Trademark: DICHENG
Transport Package: Bubble Film or in Accordance with Customer Require
Specification: C90
Origin: China
HS Code: 841459
C90 Electric Power Oil Free Vacuum Pump
Product Introduction
C90 Electric Power Oil Free Vacuum Pump

DACHENG MACHINERY offers a wide range of multistage centrifugal blowers with 20 models available for selection. We have the right blower to meet your needs today, and our Research and Development department is continuously working on new models to better serve future requirements.

C90 Multistage Centrifugal Blower:
Pressure: -49 - 78.4 Kpa
Air Capacity: 90 m³/min.


Dacheng specializes in manufacturing blowers and process control systems, offering complete blower packages with accessories tailored to a variety of industrial applications.


Model and Technical Details

Operating Environment Transport Medium Air, Neutral Gases
Inlet Temperature (ºC) 0 ~ 40ºC
Inlet Pressure (kPa A) 101.32 kPa.A
Blower Model C90
Air Capacity (m³/min) 0 ~ 90
Rotating Speed (r/min) 0 ~ 3550
Transmission Type Directly Connected by Couplings
Pressure (kPa)

78.4 kPa Pressure

-49.0 kPa Vacuum

Lubrication Method Oil Splash Lubrication
Cooling Method Air Cooled
Sealing Type Labyrinth Seal + Carbon Ring Seal + Suction Seal
Axial Balance Device With Axial Balance Plate
Safety Device Bearing Temperature and Vibration Sensor
Noise at 1 Meter from the Blower ≤80 dB
Motor Model Energy Efficient Broadband Motor
Power (kW) 55-185
Power Supply 380V, 30~70Hz, 3 Phases or Customized
Protection Degree IP55
Rotating Speed (r/min) 3550
Efficiency IE3
Explosion Protection Rating Customized
Insulation Class F
Material Blower Case HT250
Impeller ZL105 Aluminum Alloy
Wallboard HT250
Oil Tank ZL104A Aluminum Alloy
Bearing SKF Bearing
Coupling JM200 + Flexible Diaphragm Couplings
Spindle 45# Tempered
Installation Fixed Way Placed Directly Without Need for Anchor Bolts

Advantages
1. Energy-efficient.
2. Non-bolt installation.
3. Customized high-speed efficient broadband motor.
4. Monitoring device.
5. Air cooling.
6. Long service life.
7. American Shell lubricant.

1. Energy-efficient:
Adopting American Gardner-Denver technology, the blower has a rotation speed of 3600 rpm. Faster rotation leads to greater centrifugal force, higher efficiency, and lower power consumption. Compared to root blowers, the energy consumption of multistage centrifugal blowers is 15-25% less under the same air capacity and pressure.
2. Non-bolt Installation:
Minimal vibration, bearing vibration is below 4 mm/s. This is the only non-bolt installation blower in China.
3. Customized High-Speed Efficient Broadband Motor:
Motor frequency ranges from 30-70 Hz, with a rotation speed of 4000 rpm. The motor bearings are Swedish SKF Bearings, and the main shaft is ceramic-plated to eliminate magnetism.
4. Monitoring Device:
The monitoring device real-time tracks electricity, voltage, rotation speed, vibration, and temperature. If the temperature or vibration exceeds the set range, it automatically cuts off power to protect the blower.
5. Air Cooling:
The bearings and oil tank are located on both ends of the blower, isolating heat from the rotors. A fan provides cooling, suitable for low-temperature environments and reducing operating costs.
6. Long Service Life:
The blower casing is made of HT250 cast iron, and the impeller is cast from aluminum alloy. The bearings use Swedish SKF bearings, giving the blower a service life of up to 10 years.
7. American Shell Lubricant:
The multistage centrifugal blower uses American Shell lubricant, which reduces bearing wear and lowers maintenance costs compared to grease.

Blower Shell Structure:
C90 Electric Power Oil Free Vacuum Pump
1. The blower shell is made of high-quality cast iron. The pressure is adjusted by changing the number of impellers.
2. There are various options for inlet and outlet orientation design, allowing users to choose based on site conditions.

Rotor Device:
C90 Electric Power Oil Free Vacuum Pump
1. Impeller is cast using gravity and steel molds to ensure precision.
2. Single impellers are statically balanced, and assembled rotors are dynamically balanced for smooth operation.
3. Each series of blowers is designed with different performance impellers.
4. The balance plate is a utility model patent, significantly reducing axial force on the bearing, improving efficiency, and extending bearing life.

Complete Blower:
C90 Electric Power Oil Free Vacuum Pump
1. The entire blower structure has a design patent.
2. The blower and motor are fixed on a steel base, allowing the entire unit to be placed directly on hardened concrete without anchor bolts, making installation easy.

Bearing Device:
C90 Electric Power Oil Free Vacuum Pump
1. The bearing device is fixed at both ends of the blower, reducing bearing temperature and making routine maintenance easier.
2. Shaft seal uses labyrinth seal, carbon ring, and suction seal. The suction seal is a utility model patent.

Applications
C90 Electric Power Oil Free Vacuum Pump
1. Municipal and industrial wastewater treatment/biochemical aeration.
2. Steel, chemical, and carbon black industries for high-pressure air supply.
3. Desulfurization system.
4. Zinc plating technology.
5. Mine flotation.
6. Process gas supply.
7. Landfill gas extraction.
8. Pneumatic transmission.
9. Vacuum pumping applications.

Packaging
Bubble film or as per customer requirements.

Certificates
ISO9001 and CE certificate.

FAQ
1. What information should I provide when inquiring?
A: Air capacity
B: Pressure
C: Purpose
D: Operating environment (temperature, atmospheric pressure)
Additional details will be appreciated.
2. How long is the warranty?
Our warranty is 12 months after receiving the multistage centrifugal blower.
3. How long is the service life of the multistage centrifugal blower?
About 10 years under normal use.
4. What are your packaging terms?
A: Typically, we pack goods in bubble film. If you have a registered patent, we can pack in branded boxes upon authorization.
5. How do you ensure product quality?
We have a dedicated quality inspection department. Every product is checked before shipment. If there's any issue, we will produce a new one.
6. What are your payment terms?
1. TT 40% advance payment and 60% after inspection before shipping.
2. 100% irrevocable L/C at sight.

Contact Us
Shandong Dacheng Machinery Technology Co., Ltd.
Address:
Zhangqiu Mingshui, Jinan City, Shandong Province, China 250200.
Website: http://www.chinadicheng.com
Tel: +86 0531-83216898
Fax: +86 0531-83216898
Cellphone: +86 013188890202

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Installation; Debugging; Training; Maintenance.

A.When training your operators, our engineer will give them advice on how to operate the machines correctly and provide the construction program.

B.We will send you the operation manual which can help you operate the machines properly and solve some common problems.

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E.Spare parts supply


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