CubeMars AK45-36 V3.0 KV80

The AK45-36 V3.0 is a high torque robotic actuator that combines the motor, a 36:1 planetary gearbox and the driver in a single 55 mm housing. It delivers 24 Nm peak torque from 349 g and, with a torque density of 68.8 Nm/kg, is the strongest model in the compact AK V3.0 group. Thanks to its dual encoders, single-turn absolute position is kept after power loss, so the joint starts working without homing.

Key features

• High reduction, high torque. The 36:1 planetary gearbox provides 8 Nm continuous and 24 Nm peak torque, well suited to joints that must carry heavy loads with a small housing.
• Dual encoders. Two 16-bit MT6835 magnetic encoders on the motor and output sides read the output position directly, regardless of the high reduction.
• Low backlash. Gearbox backlash is 12 arcminutes, about 0.2 degrees.
• Servo and MIT control modes. Switch between position, speed and torque control and the MIT hybrid mode, with one-click PID parameter identification.
• Built-in protection. Overcurrent, over and undervoltage and overtemperature protection are inside the housing. Power and CAN share one XT30 connector.

Applications

Typical uses include slow but torque-hungry humanoid joints such as elbow and wrist flexion, shoulder joints of small robot arms, grippers and mechanisms that must hold a load in place for long periods.

Is it enough for your project?

The AK45-36 V3.0 delivers 8 Nm continuous and 24 Nm peak torque. For example, a 3 kg load at the end of a 25 cm arm needs about 7.4 Nm of static torque (3 × 9.81 × 0.25). That load stays within the rated torque, but since it is close to the limit, it is worth monitoring temperature during long duty cycles.

It runs on 24 V, with a no-load speed of 52 rpm and a rated speed of 40 rpm. Speed is the price of high reduction. If the joint has to turn quickly, the AK45-10 V3.0 from the same family may be a better fit.

How it compares to similar models

• AK45-36 KV80. The previous version with the same torque and speed figures. It has a single encoder, weighs 340 g, is 54 mm long and does not keep its position after power loss.
• AK45-10 V3.0 KV75. With a 10:1 reduction it gives 2.5 Nm rated and 7 Nm peak torque, in return it is much faster at 180 rpm.
• AK60-39 V3.0 KV80. A larger 48 V class actuator with 24 Nm rated and 72 Nm peak torque, weighing 750 g.

Frequently asked questions

Is the driver included?

Yes. The driver board, both encoders and the planetary gearbox are inside the housing. The box includes a power and CAN cable and a serial communication cable.

How is it different from the previous AK45-36?

Torque and speed figures are the same. V3.0 has dual encoders and remembers its single-turn absolute position after power loss. The housing is 2.5 mm longer and 9 g heavier.

Can it be turned by hand?

Yes, but with some effort because of the high reduction. Backdrive torque is about 0.8 Nm, which also makes it harder for light loads to turn the joint on their own when unpowered.

How long can I use the peak torque?

Peak torque is meant for short bursts. In the manufacturer's temperature rise test, bus current was 1.82 A at 8 Nm and 2.21 A at 10 Nm. Use the rated torque for continuous operation.

In the box

• AK45-36 V3.0 KV80 robotic actuator with integrated driver
• Power and CAN communication cable
• Serial communication cable
• Certificate of conformity

Box size 89 x 91 x 73 mm.

Related products

To configure and test the actuator from a computer, see the R-LINK V3.0 USB to CAN adapter.

Products in stock are dispatched within 3 business days from our warehouse in Turkey.

Shipping cost and delivery time to your country are shown at checkout. For models not listed in stock, ask our technical team about the lead time.

To start a return, contact us through our technical team. The product must be unused, undamaged and in its original packaging.

Return conditions for international shipments are confirmed before purchase.