Description
The HAITAI HT1225 is a large-diameter high-torque brushless motor designed for heavy-duty camera gimbals, motorized turntables, pan-tilt systems, robotic platforms, and precision rotary equipment.
Operating at a nominal voltage of 36V, the HT1225 delivers 4.0 N·m rated torque and up to 8.5 N·m peak torque, with a rated speed of 168 RPM and peak speed of 330 RPM.
Its large Ø120 mm motor body and high rotor inertia make it suitable for applications requiring smooth low-speed rotation, high torque, and stable motion under substantial loads.
Three configurations are available, including a complete version with encoder and slip ring, an encoder version with a reserved 22 mm through hole, and a motor-only version with the same through-hole structure.
Key Features
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36V high-torque brushless motor
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4.0 N·m rated torque
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Up to 8.5 N·m peak torque
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168 RPM rated speed
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Up to 330 RPM peak speed
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Large Ø120 mm motor platform
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Encoder-equipped configurations available
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Slip-ring configuration available
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22 mm through-hole configurations available
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Suitable for large camera gimbals and motorized turntables
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Suitable for robotics and precision rotary systems
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Working temperature range from -10°C to 80°C
Specifications
| Specification | Value |
|---|---|
| Model | HT1225 |
| Motor Type | Brushless Motor |
| Nominal Voltage | 36V |
| Nominal Current | 3.80A |
| Nominal Torque | 4.00 N·m |
| Nominal Speed | 168 RPM |
| Peak Speed | 330 RPM |
| Peak Torque | 8.50 N·m |
| Peak Current | 16.00A |
| Interphase Resistance | 3.06 Ω |
| Interphase Inductance | 3.03 mH |
| Speed Constant | 9 rpm/V |
| Torque Constant | 1.03 N·m/A |
| Rotor Inertia | 6447 g·cm² |
| Number of Pole Pairs | 21 |
| Motor Weight Without Encoder | 1038.1 g |
| Motor Weight With Encoder | 1159.3 g |
| Motor Size Without Encoder | Ø120 × 46 mm |
| Motor Size With Encoder | Ø120 × 53 mm |
| Supported Encoder Types | AS5048A / AS5600 / AS5047P |
| Working Temperature | -10°C to 80°C |
| Max. Demagnetization Temperature | 120°C |
Available Configurations
Motor + Encoder + Slip Ring
Standard complete configuration supplied with the HT1225 motor, encoder, and slip ring.
SKU: HT1225-ENC-SR
Motor + Encoder + Through Hole
HT1225 motor with encoder and without slip ring. A 22 mm through hole is reserved for applications requiring a separate slip ring or through-axis wiring.
SKU: HT1225-ENC-TH22
Motor Only + Through Hole
HT1225 motor without encoder or slip ring. Includes a 22 mm reserved through hole for custom integration.
Applications
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Professional camera gimbals
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Cinema camera stabilization systems
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Heavy-duty pan-tilt platforms
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Motorized camera turntables
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Robotic rotary platforms
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Large optical equipment
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Inspection and imaging systems
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Automation equipment
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Precision rotary mechanisms
Package Includes
Package contents depend on the selected configuration:
Motor + Encoder + Slip Ring
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1 × HT1225 Motor
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Encoder
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Slip Ring
Motor + Encoder + Through Hole
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1 × HT1225 Motor
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Encoder
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Without Slip Ring
Motor Only + Through Hole
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1 × HT1225 Motor
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Without Encoder
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Without Slip Ring
FAQ
What is the rated torque of the HT1225?
The rated torque is 4.0 N·m, with a peak torque of up to 8.5 N·m.
What voltage does the HT1225 use?
The nominal operating voltage is 36V.
What is the rated speed?
The rated speed is 168 RPM, while the specified peak speed is 330 RPM.
Does every HT1225 include an encoder?
No. Encoder availability depends on the selected configuration. Select either of the encoder-equipped configurations if encoder feedback is required.
Does every version include a slip ring?
No. Only the Motor + Encoder + Slip Ring configuration includes a slip ring.
What is the difference between the two through-hole configurations?
Both are supplied without a slip ring and provide a reserved 22 mm through hole. One includes an encoder, while the Motor Only version does not.
Which encoder is supplied?
The specification lists AS5048A, AS5600, and AS5047P as supported encoder types. The exact encoder supplied may depend on the configuration or production batch. Confirm the required encoder type before ordering if your application requires a specific model.
