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18.5kW Motor

Name: China Custom 18.5kW Motor Manufacturers Suppliers Factory - Wholesale Service - ANG Drive
Brand: ANJO
SKU: 315792102

The 18.5kW three-phase asynchronous motor serves as a primary, entry-level powerhouse for heavy-duty industrial equipment.

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Product Introduction

What is a 18.5kW Motor?

The 18.5kW three-phase asynchronous motor serves as a primary, entry-level powerhouse for heavy-duty industrial equipment. It utilizes an upgraded "180M" frame structure-stepping up a size class-and strictly adheres to international electrical safety standards (GB/T 755, IEC 60034) as well as design specifications for heavy-duty industrial machinery. Compared to the 160-series motors, this model achieves a significant leap in structural performance. It features exceptional overload margins, stable constant-power output, robust electromagnetic interference resistance, and the ability to operate continuously under heavy loads in all conditions. It is specifically engineered to handle the extreme operating environments-characterized by frequent overloads, thermal degradation, and power drop-offs-often encountered by standard high-power motors.
The 18.5kW rating marks a critical threshold in industrial power classification, representing the benchmark for upgrading from "small-to-medium heavy-duty" to "medium-to-heavy-duty" applications. It is widely deployed in high-load, variable-load, and continuous production scenarios, such as large induced-draft fans, booster water pumps, mining sand-washing equipment, heavy-duty conveyor systems, and integrated industrial assembly lines.

Models

B3 Foot-mounted

B5 flange-mounted

B14 Small flange mounted

B34 Foot and small flange mounted

B35 Foot flange mounted

Features

Delivers constant power output at steady state without speed droop under significant load variations. Specifically optimized for the variable-torque and variable-power characteristics of fans, pumps, and sand-washing equipment, the motor features superior magnetic field uniformity and maintains minimal speed deviation across a wide load range. Whether operating under no-load, partial-load, full-load, or shock-load conditions, power output remains consistently linear and stable, avoiding the issues common to standard high-power motors-such as speed drops under heavy loads, unstable air pressure, flow rate fluctuations, and inconsistent equipment throughput.

Featuring a spacious winding design with low current density and pure copper conductors, the motor offers high heat resistance and exceptional durability against aging. The large-frame construction utilizes a low-density winding layout with high-purity oxygen-free copper; this configuration ensures lower current density and uniform heat dissipation, effectively preventing localized heat accumulation and high-temperature inter-turn insulation degradation often found in high-power motors. Enhanced by multiple vacuum-pressure impregnation and high-temperature curing processes, the winding insulation is both flexible and dense, providing superior resistance to high-temperature creep, variable-frequency drive (VFD) pulses, and grid surges, ensuring reliable, continuous operation over many years without insulation failure.

Optimized for electromagnetic interference (EMI) resistance and highly adaptable to complex grid conditions: the stator windings feature a symmetrical, balanced layout that effectively suppresses harmonic interference and electromagnetic oscillations while reducing stray losses. The motor is capable of operating in complex electromagnetic environments-such as plant sites with multiple variable-frequency drives and high-frequency equipment-without issues like current instability, abnormal temperature rise, or operational vibration; its tolerance for grid operating conditions far exceeds that of standard industrial motors.

Products Description

Model	Y2 Series 18.5kW Motor
Frame	180
Power	18.5kW
Speed	3000rpm, 1500rpm, 1000rpm
Voltage	380/660V, 400/690V, or customization
Frequency	50HZ/60HZ
Efficiency	IE1, IE2, IE3, IE4
Motor shaft diameter	Φ48
Cooling	Fan
Protection	IP44/IP54/IP55
Housing	Aluminum/Cast Iron
Ambient temperature	-15℃≤0℃≤40℃
Altitude	No exceeding 1000 meters
Duty	S1

Drawings

Installation position

3 hp motor

Our advantages

ac induction motor

Production

ANJO DRIVE

ANG motor

Application

motor1 motor2 motor3

Company Profile

ANJO

company advantage

product-1-1

FAQ

Q: Will frequent starting and stopping of an 18.5 kW heavy-duty motor accelerate winding aging or reduce its service life?

A: Standard start-stop frequencies do not accelerate aging; the motor is designed for routine industrial start-stop operations. It features a Class F high-temperature insulation system and low-density pure copper windings, offering excellent resistance to current surges and thermal fatigue. The large frame size provides ample thermal margin to buffer against current peaks and temperature fluctuations during start-stop cycles. However, for applications involving extremely high-frequency continuous starting and stopping, the use of a variable frequency drive (VFD) is recommended to enable soft starting and stopping; this completely eliminates current surges, maximizes protection for windings and bearings, and significantly extends the unit's overall service life.

Q: How can one distinguish the performance of an 18.5 kW motor with a large 180M frame from a standard model, and avoid purchasing a "downsized" or substandard unit?

A: You can quickly identify genuine, large-frame, heavy-duty models by examining three key aspects. First, check the frame size: a genuine unit uses the large 180M frame, distinguishing it from downsized versions built on the smaller 160L frame. Second, measure operating parameters: look for low temperature rise under full load, stable operation without vibration, and the ability to handle a 1.8x short-term overload without tripping. Third, inspect the build quality and specifications: look for features such as pure copper windings, widened cooling fins, and reinforced bearing housings. Legitimate models come with comprehensive type-test reports and transparent, traceable specifications, ensuring there are no inflated power ratings or compromised components.

Q: What is the normal service life of an 18.5 kW heavy-duty motor with a large frame size, and which operating conditions can shorten it?

A: Under standard operating conditions and proper maintenance, the motor can achieve a trouble-free service life of 8–10 years, with replacement intervals for wear parts-such as bearings and seals-that are significantly longer than those of standard motors. The five primary factors that shorten the motor's lifespan are sustained severe overload, prolonged voltage imbalance, frequent start-stop cycles exceeding specifications, failure to clear accumulated dust or sludge, and significant misalignment of the drive shaft. Although the large-frame structure offers high tolerance for operational variations, prolonged exposure to harsh or improper conditions will still accelerate aging; however, regular routine maintenance is sufficient to ensure an exceptionally long service life.