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4kW Motor

Name: China 4kW Motor Manufacturers Suppliers Factory - Custom 4kW Motor Wholesale - ANG Drive
Brand: ANJO
SKU: 315773987

The 4kW motor is a standard, heavy-duty industrial workhorse, occupying the critical power range that bridges the gap between small-to-medium motors and heavy-industrial units.

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Product Introduction

What is a 4kW Motor?

The 4kW motor is a standard, heavy-duty industrial workhorse, occupying the critical power range that bridges the gap between small-to-medium motors and heavy-industrial units. It is manufactured in strict accordance with GB/T 755 and IEC 60034 international electrical standards. Featuring a dedicated, oversized "112" frame (compliant with national standards), the motor delivers core performance attributes such as constant power output, high torque reserves, impact load resistance, and stability across the entire operating range. It is specifically designed for medium-to-heavy continuous duty cycles, including applications in mining auxiliary machinery, chemical processing equipment, heavy-duty conveyors, and large-scale fluid handling systems.
The 4kW rating represents a pivotal threshold in heavy industrial applications, effectively resolving common industry pain points associated with lower-power motors-such as sluggish performance under heavy loads, thermal degradation during prolonged use, and frequent tripping due to overloads. The unit boasts stable electrical performance and exceptional mechanical rigidity, enabling continuous, full-load (S1 duty) operation around the clock. The product supports voltage and frequency configurations for diverse global markets and undergoes comprehensive, heavy-duty-grade testing prior to leaving the factory.

Models

B3 Foot-mounted

B5 flange-mounted

B14 Small flange mounted

B34 Foot and small flange mounted

B35 Foot flange mounted

Features

Oversized 112-frame design for maximum structural rigidity in heavy-duty applications: Features a specialized, enlarged 112-frame industrial housing with expanded dimensions, core length, and cooling chambers. Its superior resistance to deformation, resonance, and vibration is engineered to withstand the high-frequency vibration typical of heavy-duty operations, effectively eliminating issues such as housing deformation, uneven bearing wear, abnormal noise, and shaking during prolonged heavy-load service.

Delivers stable, constant power output without performance degradation under heavy loads. An optimized, advanced electromagnetic winding design enables a wide constant-power operating range, ensuring no loss of power or torque drop during load fluctuations or speed changes. It maintains efficient, stable operation-free from thermal derating, speed loss, or overload alarms-even when handling the variable-load conditions typical of chemical processing, mining, and conveying equipment.

Exceptional thermal headroom ensures no heat buildup during continuous, full-load operation: The 112-frame motor features widened and heightened cooling fins paired with a large-diameter self-cooling fan, increasing the heat dissipation surface area by over 40% compared to smaller frames. Specifically optimized for heavy-duty, 24/7 full-load applications, it delivers superior temperature rise control, effectively preventing burnout failures caused by heat accumulation during prolonged heavy-load operation.

Products Description

Model	MS Series 4kW Motor
Frame	112
Power	4kW
Speed	3000rpm, 1500rpm, 1000rpm
Voltage	220/380V, 230/400V, or customization
Frequency	50HZ/60HZ
Efficiency	IE1, IE2, IE3, IE4
Motor shaft diameter	Φ28
Cooling	Fan
Protection	IP44/IP54/IP55
Housing	Aluminum/Cast Iron
Ambient temperature	-15℃≤0℃≤40℃
Altitude	No exceeding 1000 meters
Duty	S1

Drawings

three phase induction motor

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: Is this motor suitable for long-term use in harsh, high-dust environments such as mines and aggregate processing sites?

A: It is highly suitable. This unit features an IP55-rated, reinforced labyrinth sealing structure that offers superior protection against the ingress of dust, particles, and debris compared to standard motors. Coupled with a high-capacity heat dissipation design that prevents heat buildup caused by dust accumulation, it ensures stable, long-term operation in demanding, high-dust environments-such as mines, aggregate plants, and crushing facilities-with an exceptionally low failure rate.

Q: Is the operation of a 4kW heavy-duty motor stable when frequently switching between high and low speeds under VFD control?

A: It offers excellent stability; the thickened pure copper windings and Class F insulation withstand damage from high-frequency VFD pulses, while smooth constant-torque and constant-power output across a wide frequency range meets the variable-speed requirements of heavy-duty industrial equipment. For extreme low-speed, full-load conditions, simply adding forced air cooling as needed ensures trouble-free operation year-round.

Q: Is the motor power sufficient for 60Hz heavy-duty industrial projects overseas?

A: It is fully sufficient. The system supports seamless dual-frequency switching (50Hz/60Hz); at 60Hz, rotational speed increases and power response is faster, meeting the load requirements of heavy-duty industrial equipment. Factory calibration can be precisely set to match overseas grid parameters, eliminating the need for further modifications and ensuring compliance for global heavy-duty projects.