The 3-Phase Variable Speed Gear Motor is a type of gear motor that uses a 3-phase power supply and is combined with a mechanical speed variator and a gearbox. Thanks to the mechanical speed regulation mechanism, the motor allows flexible rotation speed changes, easy operation, and does not depend on complex electronic devices. With stable operation, high durability, and suitability for continuous working environments, this 3-phase variable speed gear motor using this speed adjustment device is widely used in conveyor systems, agitators, mixers, and industrial drives.

Characteristics of 3-Phase Variable Speed Gear Motor

The 3-phase variable speed gear motor is a drive series combining a 3-phase electric motor, a mechanical speed variator, and a gearbox to create flexible speed regulation during operation. The product is widely used in systems requiring frequent speed changes without demanding high control precision, such as conveyors, packaging machines, food processing machines, and various other industrial production equipment.

• Stable 3-phase power supply usage: The motor operates on a 380V power supply, providing continuous working capability, stable torque, and higher efficiency compared to 1-phase motor lines of the same capacity.
• Integrated mechanical speed variator: Allows output speed changes through a variable pulley mechanism without interfering with the power supply to the motor.
• Gearbox combination: Helps reduce rotation speed and increase output torque, suitable for many medium and heavy-duty load applications.
• Direct speed adjustment during operation: Users can change the working speed of the equipment within the allowable range without stopping the machine.
• Compact structure, easy installation: The motor, speed variator, and gearbox are integrated into a complete assembly, saving equipment layout space.

Applications of 3-Phase Variable Speed Gear Motor

Production and Industrial Lines

• Factory conveyor lines: The motor is installed in material and product transportation systems, allowing flexible speed changes according to each working stage.
• Industrial mixing equipment: Suitable for equipment requiring stable rotation speed control, meeting continuous operation requirements in various manufacturing fields.

Mechanics and Machinery

• Machinery drive systems: Applied in mechanical machines and industrial equipment, helping simplify speed adjustment, enhance operational efficiency, and increase equipment durability.
• Manufacturing and processing equipment: Used in machinery for processing, packaging, and manufacturing, where speed flexibility and working stability are required.

3-Phase Variable Speed Gear Motor Price at Thanh Thai Motor

Thanh Thai Motor updates the cycloid gear motor price list from 1.1kW to 3.7kW below to help customers easily compare power options and transmission ratios suited to actual operating requirements.

Criteria for Choosing a 3-Phase Variable Speed Gear Motor

To correctly choose a 3-phase variable speed gear motor, users need to simultaneously evaluate factors such as load, working speed, power supply, and desired speed adjustment range. Accurately determining technical specifications from the beginning will help the system operate stably and extend equipment lifespan.

• Determine the speed adjustment range: This is the most important factor when choosing a mechanical speed variator motor. Users should determine the lowest and highest speeds needed to select the right model.
• Choose capacity suitable for the load: The motor capacity must meet the actual load and required torque during continuous operation.
• Check the gearbox transmission ratio: The transmission ratio determines the output speed and pulling force of the system. It needs to be selected in accordance with the working characteristics of the machinery.
• Evaluate the power supply used: The motor requires a stable 3-phase power supply. Before installation, voltage and power supply conditions in the application area must be checked.
• Consider the operating environment: Temperature, humidity, dust, and working frequency all affect the lifespan of the motor and the mechanical speed variator.

You can refer to the gear motor video collection to learn in detail about how to select and apply each product line in practice.

Frequently Asked Questions

How to reverse the rotation direction of a 3-phase variable speed gear motor?

To reverse the rotation direction, simply swap any two phase wires among the three power supply wires connected to the motor. After swapping phases, a test run is required to check the output rotation direction before official operation.

Can a variable frequency drive be used with a 3-phase variable speed gear motor?

Yes. However, the purpose of speed adjustment must be clearly defined. In many cases, users only use the mechanical speed variator or only use the variable frequency drive to avoid complicating the control system.

How is the rated current of a 3-phase variable speed gear motor determined?

The current depends on the motor capacity, supply voltage, and working efficiency. Users should directly cross-reference the specifications on the motor nameplate to select the appropriate circuit breaker (CB), contactor, and wire size.