Shanghai Avetlink Technology Co., Ltd.  

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Avetlink AK 72V High-Torque DC Gear Motor — Built for Heavy Loads

Reliable Power for Demanding Work
Ordinary gear motors can lose efficiency under heavy loads. For example, a standard 72V motor moving a 200 kg load may reach 110°C or higher after two hours of demanding use. Over time, this heat can damage the motor.
Replacing equipment every 8–12 months can increase costs by 28% or more.
The Avetlink AK high-torque gear motor combines a specially designed motor with a smart controller. It delivers reliable power under heavy loads while reducing heat and wear.
Technical Specifications

Item	Specification
Brand	Avetlink
Model	AK
Country of origin	China
Power	1000W–1200W
Voltage options	48V / 60V / 72V
Maximum speed	28–30 km/h
Wire cross-sectional area	5 mm²
Peak torque	320 N·m at 72V / 180A
Noise level	≤68 dB(A)
Temperature rise	Less than 45K
Overload response time	Less than 2.8 ms via CAN bus
Cooling materials	6 μm anodized aluminum layer and 0.5 mm copper plate
Color	Customizable

Key Features
1. Effective cooling
A three-layer cooling design combines anodized aluminum, a copper plate that spreads heat, and small built-in air channels. This helps control heat during extended heavy-duty operation and extends motor life.
2. Smart temperature control
The controller automatically adjusts power to match the load. It keeps the temperature rise below 45K, helping maintain efficiency during demanding work.
3. Durable gears
The gears are designed for heavy-duty use. Testing showed a service life of more than 12,000 hours, with less wear than ordinary gears and fewer maintenance needs.
4. High safety requirements
The motor meets ASIL-D functional safety requirements for applications where reliable operation is essential.
Installation and Setup
1. Check compatibility: Make sure the motor specifications match your equipment. Leave at least 15 cm of cooling space around the motor.
2. Mount the motor: Use M8, grade 8.8 bolts. Ensure correct alignment with the connected components to prevent gear damage.
3. Connect the power: For the 72V configuration, use a 5 mm² cable to connect the power supply. Connect the controller, throttle, and other systems according to the wiring diagram. Keep all connections secure and insulated.
4. Set the controller: Adjust the controller through the CAN bus. Set overcurrent protection to 45A–50A, according to the operating conditions.
5. Test operation: Run the motor at half load for 30 minutes and check that its temperature stays below 85°C. Then gradually increase to full load within two hours, checking that it operates normally.
Maintenance Schedule
- Monthly: Use a laser thermometer to check the bearing temperature. It should stay below 90°C at full load.
- Quarterly: Update the controller software using the latest version supplied by Avetlink Technical Support.
- Every six months: Check gear wear and add lubricant as needed.
- Annually: Calibrate the system and test its efficiency.
Applications
- Logistics and delivery: Electric cargo tricycles carrying heavy loads or climbing steep slopes.
- Material handling: Conveyors, pallet trucks, and small forklifts.
- Industrial automation: Automated guided vehicles (AGVs) and factory robots.
Benefits and Performance Results
- Longer service life: More than three years, reducing the need for replacement every 8–12 months.
- Long-term savings: Up to 65% cost savings over five years.
- Lower operating costs: Higher efficiency and reduced maintenance lower operating costs by 28%.
- Fewer breakdowns: A logistics park in Fujian reported a 64% reduction in failure rate, reducing downtime.
- Lasting efficiency: After 2,000 hours of operation, efficiency loss remains below 3%.
- A quieter workplace: Noise stays at or below 68 dB(A), while effective cooling helps control heat.
- Lower energy use: The controller reduces power when the motor is operating below full load.
Standards and Safety
The motor meets the standards and safety requirements listed in the original specifications:
- GB/T 18488-2015: Electric vehicle drive systems.
- ISO 26262: Road vehicle functional safety.
- ASIL-D: Automotive Safety Integrity Level D.
Product Image Captions
- Avetlink AK 72V gear motor — thermal management system.
- Avetlink AK motor — front view.
- Avetlink AK motor — side view showing the gear assembly.