CubeMars’ AKE Quasi Direct Drive sets a new standard for industrial automation and robotics. This innovative solution integrates a motor and planetary gearbox, making it the ideal choice for exoskeletons, bipedal robots, robotic arms, and collaborative industrial robots.
The core gearbox components are optimized for advanced design and manufacturing, resulting in higher load capacity, lighter overall weight, ultra-low backlash of just 9 arcminutes, and an impressive torque density of 46 N·m/kg. Its modular architecture simplifies installation and maintenance, while the motor base—with both threaded and through holes—offers flexible, bi-directional mounting to meet diverse installation needs.
CubeMars is committed to innovation and superior quality, delivering products that consistently exceed customer expectations through cutting-edge manufacturing and rigorous quality control.
Features
• Robotic Actuator with a Planetary Gear
• Flexible Installation with Bi-directional Mounting
• Modular Design
• low Arcmin Backlash for High Precision
• Constantly Powerful Performance
• Specially for Exokseleton
Highlights
QUASI DIRECT DRIVE
Robotic Actuator with Planetary Gear
Light and Compact,Precise and Powerful
PRECISION TRANSMISSION WITH HEAVY LOAD CAPACITY
Achieve higher transmission accuracy within 9 arc backlash;
optimized reducer increases load capacity,reaching peak torque density of 46N.m/kg.
QUIET OPERATION WITH PRECISION EXCELLENCE
Utilizing grade 5 precision gears and optimized core components in the reducer significantly reduces operational noise while extending motor lifespan
WINDING UPGRADING FOR EFFICIENCY BOOST
Enhanced winding process increases slot fill factor by 10% compared to AK series reducing copper losses and temperature rise for superior torque output
LIGHT AND COMPACT FOR VERSATILE APPLICATIONS
Lightweight design and compact structure with bi-directional mounting for diverse application
MODULAR DESIGN FOR HASSLE-FREE MAINTENANCE
Motor and reducer feature separate modular design for easy and quick disassembly and maintenance
Specification
| Application |
Exoskeleton |
Peak torque (Nm) |
12.5 |
| Driving way |
FOC |
Peak current (ADC) |
12 |
| Operation ambient temperature |
-20℃~50℃ |
Kv (rpm/V) |
80 |
| Winding type |
star |
Kt (Nm/A) |
0.13 |
| Insulation class |
F |
Ke (V/krpm) |
12.5 |
| Insulation High-voltage (V) |
500 |
Phase to Phase resistance (mΩ) |
577 |
| Insulation resistance (MΩ) |
10 |
Phase to Phase inductance (μH) |
704 |
| Pole pairs |
14 |
Inertia (gcm²) |
647.39 |
| Backlash (arcmin) |
9 |
Km (Nm/√W) |
0.15 |
| Rated voltage (V) |
24 |
Mechanical time constant (ms) |
1.2 |
| No-load speed (rpm) |
240 |
Electrical time constant (ms) |
1.7 |
| Rated torque (Nm) |
5 |
Weight (g) |
260 |
| Rated speed (rpm) |
180 |
Maximum torque weight ratio (Nm/kg) |
46 |
| Rated current (ADC) |
4.8 |
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1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
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Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
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Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
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We can ship all in-stock orders within 1 business day as your order has been confirmed.
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All items are inspected before dispatch and are carefully hand-packed.
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With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
2. Shipping Options & Rates (United States)
(For Products in the US Warehouse & Global Warehouse)
2.1 Continental U.S. (50 States)
| Shipping Method |
Order Value |
Cost |
Est. Delivery |
| USPS Ground Advantage |
$0.00 - $5.00 |
$9.99 |
3-7 Business Days |
| USPS Ground Advantage |
$5.00 - $50.00 |
$5.99 |
3-7 Business Days |
| USPS Ground Advantage |
Over $50.00 |
Free |
3-7 Business Days |
USPS Priority Mail
(Faster Option) |
$0.00 - $50.00 |
$19.99 |
1-4 Business Days |
| USPS Priority Mail |
Over $50.00 |
$17.59 |
1-4 Business Days |
2.2 Non-Continental U.S.
(Includes Alaska, Hawaii, Puerto Rico, Guam, Virgin Islands, etc.)
| Shipping Method |
Order Value |
Cost |
Est. Delivery |
| USPS Ground Advantage |
$0.00 - $5.00 |
$9.99 |
5-9 Business Days |
| USPS Ground Advantage |
$5.00 - $70.00 |
$7.99 |
5-9 Business Days |
| USPS Ground Advantage |
Over $70.00 |
Free |
5-9 Business Days |
Important Notice:
- Before placing your order, please check the inventory location on the product page to confirm the delivery timeframes.
- For products stored in the Global Warehouse (Shenzhen), we will ship them directly from China.
- If you place an order for products from both the U.S. warehouse and the Global warehouse, we will ship your order separately: the products from the Global warehouse will be sent from China, and the products from the U.S. warehouse will be sent from the U.S. warehouse.
3. Warehouse Locations
Our products are stored in both our U.S. and Global warehouses to provide more flexible logistics solutions. On each product's description page, we indicate the specific warehouse location.
3.1 U.S. Warehouse
Located in Dover, Delaware (19901).
For products stored here, we use USPS for shipping. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days.
3.2 Global Warehouse (China)
Located in Shenzhen, Guangdong.
For orders shipping from our Global Warehouse, we typically use YunExpress. Given the complexities of international shipping, the estimated delivery time is around 10 business days, though this may vary due to customs processes.
To ensure that your order is delivered within your desired timeframe, we recommend reviewing the warehouse information provided on the product pages before placing your order.
4. Customs and Taxes
Effective Date: December 10, 2025
At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.
1. Warranty Policy
A. Standard Limited Warranty (Global & US)
For customers in the United States, Asia, and other non-EU regions:
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Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.
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Coverage: This warranty covers defects in material and workmanship under normal use.
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Resolution: We will repair or replace defective units at no charge.
B. Statutory Rights for EU/UK Customers (EU Compliance)
If you are a consumer residing in the European Union or the UK purchasing from our global site:
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Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.
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Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.
C. Warranty Exclusions (Applies to ALL Regions)
Warranty coverage is VOID if the damage is caused by:
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Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.
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Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.
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Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).
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Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.
Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.
2. Return & Refund Policy
A. Return Window
B. Refund Conditions & Restocking Fees
To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.
1. Full Refund (100%)
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The item is Brand New, Unopened, and Unused.
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The original packaging is intact and sealed.
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All accessories are present.
2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:
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Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.
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Damaged Packaging: Original box is torn, written on, or missing.
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Technical Modification: The device has been powered on, programmed/flashed, or soldered.
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Broken Seals: Anti-static bags or security seals have been opened.
Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.
C. Shipping Costs
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Defective / Wrong Item: OpenELAB covers the return shipping cost.
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Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.
3. Return Process (RMA)
To ensure a smooth return process, please follow these steps:
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Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.
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RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.
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Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).
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Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
