Editorial Technical Reference

Blower Motor

This page explains how Blower Motor is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electric motor that drives the blower fan in an aeration unit to generate airflow.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Blower Motor

Definition
The blower motor is the electromechanical component within an aeration unit (blower/filter system) that converts electrical energy into rotational mechanical energy. Its primary function is to drive the attached blower fan or impeller, creating the necessary airflow or pressure for processes such as aeration, ventilation, or filtration. It is a critical part that determines the unit's airflow capacity and energy efficiency. The motor operates on electromagnetic principles: when electrical current passes through its windings within a magnetic field, it generates a force (torque) that rotates the motor shaft. This rotation is directly coupled to the blower's fan or impeller, moving air through the system. Typical specifications include a rated power range of 0.75–7.5 kW, a rated voltage of 380 V AC (three-phase, 50 Hz), and a speed range of 1450–2900 rpm. The efficiency class is IE3 (with IE4 available for premium efficiency), insulation class F (Class H available for high-temperature environments), and protection degree IP55 (IP65 available for dusty or washdown environments). The ambient temperature range is -20 to 40°C, with derating above 40°C. Sound pressure level at 1 m distance, no load, is 70–85 dB(A). Weight ranges from 15–120 kg, and frame size (shaft height) is 80–200 mm. Mounting type is B3, with B5, B14, and V1 also available. These values are directory reference ranges and must be confirmed for the actual model and application. Standards referenced include IEC 60034-1, IEC 60038, IEC 60034-30-1, IEC 60085, IEC 60529, ISO 1680, IEC 60072-1, and IEC 60034-7. Always verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The blower motor operates on electromagnetic principles. When electrical current passes through its windings within a magnetic field, it generates a force (torque) that rotates the motor shaft. This rotation is directly coupled to the blower's fan or impeller, moving air through the system. The motor's speed is determined by the number of pole pairs and the supply frequency. The efficiency class and insulation class affect performance and durability. The motor's protection degree indicates its resistance to dust and water ingress. The ambient temperature range and derating above 40°C must be considered for proper operation. The motor's mounting type and frame size determine its mechanical interface with the blower unit.
Common Materials
Electrical steel (lamination core), Copper (windings), Aluminum alloy (housing/casing), Insulation materials, Bearings (steel/ceramic)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Power0.75–7.5 kWSelect based on required airflow and pressure.IEC 60034-1
Rated Voltage380 V ACThree-phase, 50 Hz.IEC 60038
Frequency50 HzOther frequencies available on request.IEC 60038
Speed1450–2900 rpmPole pairs determine speed.IEC 60034-1
Efficiency ClassIE3IE4 available for premium efficiency.IEC 60034-30-1
Insulation ClassFClass H available for high-temperature environments.IEC 60085
Protection DegreeIP55IP65 available for dusty or washdown environments.IEC 60529
Ambient Temperature-20–40 °CDerate above 40°C.IEC 60034-1
Sound Pressure Level70–85 dB(A)At 1 m distance, no load.ISO 1680
Weight15–120 kgDepends on power and frame size.
Frame Size80–200 mmShaft height in mm.IEC 60072-1
Mounting TypeB3B5, B14, V1 also available.IEC 60034-7

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Stator
    Stationary part containing windings that create the rotating magnetic field.
    Material: Electrical steel laminations, copper wire
  • Rotor
    Rotating part (shaft and core) that turns within the stator's magnetic field.
    Material: Electrical steel laminations, aluminum/copper bars
  • Bearings
    Support the rotor shaft, allowing smooth rotation with minimal friction.
    Material: Steel, ceramic
  • Housing/Casing Part
    Protects internal components, provides mounting points, and aids in cooling.
    Material: Cast iron, aluminum alloy
  • Cooling Fan
    Attached to the shaft to circulate air for cooling the motor.
    Material: Plastic, aluminum

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 1.5 bar
flow rate: 100-5000 m³/h
temperature: -20°C to 80°C
slurry concentration: Up to 5% solids by weight
Media Compatibility
✓ Ambient air ✓ Process air ✓ Dust-laden air
Unsuitable: Corrosive gases (e.g., chlorine, hydrogen sulfide)
Sizing Data Required
  • Required airflow (m³/h)
  • Static pressure (Pa)
  • Motor power supply (V/Hz)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing failure
Cause: Lubrication breakdown due to contamination, overheating, or improper greasing intervals leading to metal fatigue and seizure
Winding insulation breakdown
Cause: Thermal degradation from overload conditions, voltage imbalance, or moisture ingress causing short circuits
Maintenance Indicators
  • Unusual high-pitched whining or grinding noises indicating bearing wear or misalignment
  • Excessive vibration or visible wobble in the motor housing suggesting imbalance or mounting issues
Engineering Tips
  • Implement precision laser alignment during installation and re-alignment after maintenance to minimize bearing stress
  • Establish infrared thermography monitoring program to detect abnormal heat patterns in windings and bearings before catastrophic failure

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 1940-1:2003 (Balance quality requirements for rotors) ANSI/AMCA 210-07 (Laboratory Methods of Testing Fans for Rating) DIN EN 60335-2-80 (Safety of household and similar electrical appliances - Particular requirements for fans)

Quoted from the published standard.

Manufacturing Precision
  • Shaft runout: +/-0.01mm
  • Housing bore concentricity: 0.05mm TIR
Quality Inspection
  • Vibration analysis (unbalance testing)
  • Insulation resistance test (dielectric strength verification)

Manufacturers of Blower Motor

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shengzhou City Huahao Motor Manufacturing Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Sogears
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Supply Chain Compatible Machinery & Devices

Heavy-Duty CNC Plasma Cutting Machine

The Heavy-Duty CNC Plasma Cutting Machine is a standalone industrial device designed for cutting conductive metals such as steel, stainless steel, aluminum, and copper alloys.

Explore Specs →
Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

The centrifugal pump impeller is a critical rotating component that converts mechanical energy from the motor into kinetic energy in fluid systems.

Explore Specs →
High-Precision CNC Laser Cutting Machine

Computer-controlled industrial machine using focused laser beams to cut sheet metal with micron-level accuracy.

Explore Specs →

Frequently Asked Questions

What is the typical power range for a blower motor?

The typical rated power range is 0.75 to 7.5 kW, but the exact value must be selected based on the required airflow and pressure for your specific application. Always confirm with the manufacturer.

What voltage and frequency does the blower motor use?

The standard rated voltage is 380 V AC, three-phase, at 50 Hz. Other frequencies may be available on request. Verify the electrical supply compatibility with the motor's nameplate.

What efficiency class is available?

The standard efficiency class is IE3, with IE4 available for premium efficiency. The efficiency class affects energy consumption and operating costs. Confirm the actual class for the model you intend to use.

What protection degree does the motor have?

The standard protection degree is IP55, which protects against dust and water jets. IP65 is available for dusty or washdown environments. Choose the appropriate degree based on your installation environment.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for Blower Motor

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.

Need to Manufacture Blower Motor?

Compare manufacturer profiles with relevant product and process capability.

Previous Product
Z-axis Ram/Spindle
Last Product
Get QuotesChat