CubeMars

CubeMars AKE90-8KV35

AKE90-8KV35 quasi-direct drive actuator, 55 Nm rated and 170 Nm peak torque. 210 rpm no-load speed, 1,400 g.

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US$ 579,80US$ 599,80
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Product description

The AKE90-8 is the largest-body model in the series. Its quasi-direct drive architecture gives high torque density.

Key features

  • Quasi-direct drive. A low-ratio planetary gear is combined with the motor, so force feedback is felt directly.
  • Low backlash. Because gear backlash is low, position repeatability is high.
  • Mounts from both sides. The actuator can be fixed from either side, which gives flexibility in joint layout.
  • Modular design. The same interface can be used across different joints.

Applications

Typical applications include exoskeleton joints, rehabilitation devices, collaborative robot arms and mechanisms that work in contact with people.

Is it enough for your project?

The AKE90-8 is a quasi-direct drive actuator delivering 55 Nm continuous and 170 Nm peak torque. For example, a 10 kg load at the end of a 40 cm arm needs about 39.2 Nm of static torque (10 × 9.81 × 0.40). That load stays within the actuator's rated torque.

In quasi-direct drive the reduction is kept low (8:1). The joint stays compliant to external forces, force feedback can be read directly from motor current, and no-load speed rises to 210 rpm. With a torque-to-weight ratio of 121.4 Nm/kg it is designed for exoskeleton knees and hips and for legged robots that carry heavy loads.

How it compares to similar models

  • AKH70-48 V1.0 KV41. Offers 74 Nm rated torque and an integrated driver, but at 35 rpm it is six times slower.
  • AKE80-8 KV30. The smallest model in the same series, with 12 Nm rated and 30 Nm peak torque, weighing 570 g.
  • AK10-9 V3.0 KV60. Gives 18 Nm rated torque, with the driver board and dual encoder inside the housing. It weighs 940 g.

Frequently asked questions

Is the driver included?

No. The AKE series has no integrated driver board, and the actuator runs with an external FOC driver. CubeMars recommends the AK80-4830 driver for this model. Our technical team can help you choose a driver.

How much gearbox backlash is there?

According to the manufacturer, 9 arcminutes, or about 0.15 degrees.

How is position read?

The Ø6 × 2.5 mm sensor magnet in the box is fitted to the end of the shaft, and the magnetic encoder on the external driver reads it.

What insulation class does it have?

Class H, the windings are insulated for up to 180 °C.

In the box

  • AKE90-8KV35 robotic actuator (driver board not included)
  • Ø6 × 2.5 mm sensor magnet

Related products

This model has no integrated driver board, so the actuator needs an external FOC driver. CubeMars recommends the AK80-4830 driver for this model. Our technical team can help you choose a driver.

Shipping and delivery

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.

Returns

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.

  • Own stockProducts are ready in our warehouse in Turkey, with no wait for import from the manufacturer.
  • Dispatch in 3 business daysYour order is dispatched within three business days.
  • Official distributorWe are an official CubeMars distributor, every product is genuine.
  • Technical supportOur team supports you in English from motor selection to commissioning.

Specifications

Values from the manufacturer's datasheet.

Rated torque (Nm)55
Peak torque (Nm)170
Rated speed (rpm)120
No-load speed (rpm)210
Gear ratio8:1
Backlash (°)0.15
Rated voltage (V)48
Rated current (A)21
Peak current (A)72
KV (rpm/V)35
Torque constant Kt (Nm/A)0.272
Voltage constant Ke (V/kRPM)28.5
Phase resistance (mΩ)164
Phase inductance (µH)235
Pole pairs21
Winding typeDelta
Drive methodFOC
Weight (g)1,400
DimensionsØ107.5 × 43.5 mm
Rotor inertia (g·cm²)3,377.08
Torque-to-weight ratio (Nm/kg)121.4
Insulation classH
ApplicationsExoskeletons

Values are taken from the manufacturer's datasheet.

Project support

Let's bring your project to life together

If you are building a robot arm, a humanoid robot, an exoskeleton or a competition vehicle, tell us about your project. From motor selection to commissioning, our team stays with your project at every stage.

Tell us about your project

For university teams, R&D teams and industrial projects

  • The right motor, the right torqueLet's choose the model together based on your joint loads.
  • Setup and commissioningWe are with you on the driver, CAN communication and parameter tuning.
  • From prototype to productionLet's plan quantities and supply around your project timeline.

Other models in the series

Compare models in the same series side by side.

SpecificationThis productCubeMars AKE90-8KV35CubeMars AKE50-8 KV110ViewCubeMars AKE40-6 KV90View
Rated torque (Nm)552.51.8
Peak torque (Nm)1707.55.5
KV (rpm/V)3511090
No-load speed (rpm)210320330
Weight (g)1,400190140
DimensionsØ107.5 × 43.5 mmØ61.2 × 22.5 mmØ51 × 24.5 mm

Request a quote

Fill in the form for volume purchases, company invoicing and project pricing. Our team will get back to you shortly.

Request a quote

Frequently asked questions

The most common questions about motor selection, delivery and technical support.

Is the product in stock and when is it dispatched?

Our products ship from our own warehouse in Turkey. Your order is dispatched within 3 business days. Current stock status is shown on this page.

Which motor fits my project? Can you help me choose?

Yes. Tell us the torque, speed and supply voltage you need, and we will find the right series together. You can also compare using the specifications table on this page and the filters on the category page.

  • For high torque at low speed, the AK, AKE and AKH series with gearbox
  • For direct drive and low inertia, the frameless RI and RO series
  • For cameras and stabilization systems, the GL series
Are the products genuine and under warranty?

Robotizma is an official CubeMars distributor. Every product we sell is genuine and covered by the manufacturer's warranty.

Where can I find the datasheet and mounting dimensions?

The Specifications section on this page lists rated torque, peak torque, KV, no-load speed, weight and outer dimensions. If you need the detailed datasheet, CAD file or driver documentation, ask our technical team.

Do you offer corporate sales, quotes and invoices?

We sell to universities, industry and R&D projects. For volume pricing and a formal quote, fill in the Request a quote form on this page and our team will reply with price and delivery details.

Which driver and communication can I use with the motor?

In the AK and AKH series actuators the driver board is built into the motor and communicates over CAN. The AKE series and the frameless RI and RO series motors need an external FOC driver. The R-Link and S-Link interfaces are for setup and debugging, and we can support you during installation.

Can't find your question?Write to the technical team