Robotic Actuator / AKH70-16 V1.0 KV41

AKH70-16 V1.0 KV41 Hollow Shaft Planetary Actuator

A compact AKH-series hollow-shaft planetary actuator that integrates a brushless motor, two-stage 16:1 gearbox, dual 21-bit encoders and an onboard driver, with a 7 mm through-bore for tidy internal wiring.

85 Nm

Peak Torque

26 Nm

Rated Torque

105 rpm

No-load Speed

16:1

Reduction

Product Overview

Compact hollow-shaft joint

The CubeMars AKH70-16 V1.0 provides 26 Nm continuous and up to 85 Nm peak torque at 879 g, a torque density of about 88.74 Nm/kg. A two-stage 16:1 planetary gearbox and dual 21-bit encoders deliver accurate, reliable closed-loop control in a compact body.

A 7 mm hollow shaft routes power and signal cables through the centre to reduce external wiring, and dual CAN interfaces support daisy-chaining multiple actuators, making it well suited to multi-joint robotic systems and automation equipment.

Features & Benefits

Compact hollow-shaft joint

A light planetary module for multi-joint robots.

85 Nm Peak

88.74 Nm/kg torque density.

7 mm Hollow Bore

Route cables through the centre.

16:1 Planetary

Two-stage reduction gearbox.

Dual 21-bit Encoders

Motor and output feedback, power-loss memory.

Dual CAN Daisy-Chain

Simplified multi-actuator wiring.

Protected

Overcurrent, overvoltage and thermal safety.

Technical Specifications

AKH70-16 V1.0 KV41 Specifications

Verified CubeMars manufacturer specifications for the AKH70-16 V1.0 KV41.

Peak torque85 Nm
Rated torque26 Nm
No-load speed105 rpm
Rated speed90 rpm
Reduction ratio16:1
KV41 rpm/V
Torque constant (Kt)0.23 Nm/A
Back-EMF (Ke)2.4 V/krpm
Rated voltage48 V
Rated current6.5 A
Peak current19.5 A
Phase-to-phase resistance560 mOhm
Phase-to-phase inductance600 uH
Pole pairs21
Hollow bore7 mm
Backlash12 arcmin
Torque density88.74 Nm/kg
EncodersDual 21-bit magnetic
Insulation classF
Actuator dimensionsD90 x 60.5 mm
Weight879 g
Operating temperature-20 to 50 C
Drive methodFOC
Applications

Where the AKH70-16 works

Built for compact robotic joints.

Legged Robots

Compact high-torque joints.

Exoskeletons

Lightweight assistive actuation.

Robotic Arms

Daisy-chained multi-joint drive.

AGVs

Rugged, integrated drive.

Why Choose This Product

Why the AKH70-16

Strong

85 Nm peak torque.

Hollow Shaft

7 mm cable routing bore.

Precise

Dual 21-bit encoders.

Support

Robomatek engineering assistance included.

Ready to integrate the AKH70-16 V1.0 KV41?

Talk to our robotics specialists for availability, lead time, and integration support.