Xynova
Xynova is a Hangzhou, China based developer founded in 2024. It describes itself as a core component supplier for humanoid robots, focused on high degree of freedom dexterous hands, integrated joint modules and micro electric cylinders, together with the control software that ties them together. The company states that it develops key parts such as motors, electronic controls, reducers and lead screws in house
Xynova Dexterous Robot Hands and Actuators
A humanoid robot can walk across a factory floor, but the job usually happens in the last few centimeters, where fingers meet a part, a tool or a fragile object. That is the problem Xynova was built to solve. Instead of building whole robots, the company concentrates on the hand and the drive hardware behind it, offering two dexterous hands, a family of micro linear actuators and a range of planetary rotary joint modules designed for humanoid platforms. This page brings the full Xynova lineup together so you can compare hands and actuators side by side, understand what each model is designed for, and decide which one to buy for your research, integration or production project.
Xynova follows a two track hand strategy. The Flex series uses a hybrid drive that combines tendons with direct drive motors for strength and durability in real deployments. The Prima series uses a fully direct drive design for researchers and algorithm developers who need clean, measurable force data.
The Xynova Hand Lineup
| Feature | Xynova Flex 2 | Xynova Prima 1 |
|---|---|---|
| Drive type | Hybrid tendon plus direct drive | Fully direct drive |
| Degrees of freedom | 23 | 22 |
| Weight | About 400 g | Not listed by manufacturer |
| Load / payload | 12 kg single hand grasp, 4 kg rated continuous | Up to 20 kg lifting payload |
| Fingertip force | Not listed | 15 N |
| Force control accuracy | 0.05 N | 0.5 N |
| Repeatability | ±0.1 mm | 0.5 mm |
| Speed | 2 fist extensions per second | 0.08 s per open/close cycle |
| Sensing | Multimodal perception, slip detection | Five finger visuo-tactile sensing |
| Best for | Industrial and service deployment | Research, data collection, model training |
Xynova Flex 2 Dexterous Robot Hand
The Flex 2 is Xynova's deployment hand. Its 23 degree of freedom bionic layout mirrors the size, joints and kinematics of a human hand, and the manufacturer reports a perfect score on the Kapandji thumb opposition test. Power comes from micro linear actuators, giving a single hand grasp load of 12 kg and a rated continuous operating load of 4 kg.
The hand is back drivable under load, which supports hybrid force and position control. Multimodal perception enables adaptive grasping, slip detection and compliant reflexes. Practical details include a wear and puncture resistant palm, replaceable soft skin, anti pinch seams, anti creep tendon ropes and a design rated by Xynova for millions of open and close cycles. An open development ecosystem allows customization and integration.
Xynova Prima 1 Direct Drive Dexterous Hand
The Prima 1 is built for the lab. Fully direct drive with zero backlash, it transmits force signals without the distortion that gear trains or tendons can introduce, which makes it well suited to experimentation, dataset collection and policy training. Xynova lists a 1 kHz response bandwidth, a minimum back drive torque of 0.04 Nm for safe interaction and a 190 mm hand length that matches human proportions.
Xynova PRM10 Micro Linear Actuators
The PRM10 series are micro electric cylinders designed to fit inside humanoid fingers, wrists and small joints. Each one uses an in house hollow cup motor and a 7 mm micro planetary roller screw, and the screw design allows the joint to self lock if power is lost. Every model runs on 12 V DC, shares a 10 x 13.5 mm footprint and operates from -15 to 60 °C.
| Model | Effective stroke | Max thrust | No load speed | Full load speed | Weight | Repeatability |
|---|---|---|---|---|---|---|
| PRM10-20-18-200-F | 19 mm | ≥200 N | ≥18 mm/s | ≥4 mm/s | ≤38 g | ±0.04 mm |
| PRM10-20-34-150-F | 19 mm | ≥150 N | ≥34 mm/s | ≥9 mm/s | ≤34 g | ±0.04 mm |
| PRM10-20-47-100-F | 19 mm | ≥100 N | ≥47 mm/s | ≥20 mm/s | ≤34 g | ±0.04 mm |
| PRM10-25-47-100-F | 24 mm | ≥100 N | ≥47 mm/s | ≥20 mm/s | ≤38 g | ±0.05 mm |
| PRM10-20-64-75-F | 19 mm | ≥75 N | ≥64 mm/s | ≥25 mm/s | ≤34 g | ±0.04 mm |
| PRM10-25-64-75-F | 24 mm | ≥75 N | ≥64 mm/s | ≥25 mm/s | ≤38 g | ±0.05 mm |
The pattern is simple: the higher the thrust, the lower the speed. Choose the 200 N model for gripping force, the 75 N models for fast finger motion, and the 24 mm stroke versions when the joint needs extra travel.
Xynova Planetary Rotary Actuators
Xynova's planetary joint modules integrate the motor, planetary gearbox, encoder and control into one compact unit for humanoid arms, legs and torsos. All run on 48 V input. The numbers in each model code follow the gear ratio, housing diameter and peak torque.
| Model | Peak torque | No load speed | Gear ratio | Weight | Size | Encoder | Repeatability |
|---|---|---|---|---|---|---|---|
| PRH19-57-25-HS | 25 Nm | 156 rpm | 19 | 0.4 kg | Ø57 x 57 mm | 16 bit | ≤0.1° |
| PR20-102-130-HS | 130 Nm | 150 rpm | 20 | 1.2 kg | Ø102 x 59 mm | 17 bit | ≤0.1° |
| PR21-100-140-HS | 140 Nm | 130 rpm | 21 | 1.2 kg | Ø100 x 61.7 mm | 16 bit | ≤0.1° |
| PR64-110-500 | 500 Nm | 45 rpm | 64 | 1.6 kg | Ø110 x 64.3 mm | 14 bit | ≤0.1° |
| PR43-120-600-HB | 600 Nm | 32 rpm | 43 | 4.3 kg | Ø120 x 126 mm | 17 bit | ≤0.15° |
The PRH19 suits wrists and small arm joints, the PR20 and PR21 cover shoulders and elbows, and the PR64 and PR43 deliver the high torque needed at hips and knees.
Applications
- Humanoid robot integration: fit a Flex 2 or Prima 1 to an existing humanoid or robot arm, then drive the joints with PRM10 and planetary modules.
- Embodied AI research: use the Prima 1 for teleoperation, tactile data collection and manipulation policy training.
- Factory and assembly tasks: the Flex 2 targets repeated grasping, part handling and tool use where durability matters.
- Service and household robotics: lightweight, human sized hands with soft skin and anti pinch seams for work near people.
- Custom robot design: engineers building their own platforms can source finger, wrist and leg actuation from one supplier.
Which Should You Buy?
| If you need... | Buy this |
|---|---|
| A durable hand for real deployment | Xynova Flex 2 |
| Clean force data for AI training and research | Xynova Prima 1 |
| Maximum finger gripping force | PRM10-20-18-200-F |
| Balanced finger speed and force | PRM10-20-34-150-F or PRM10-20-47-100-F |
| Fast finger motion with longer travel | PRM10-25-64-75-F |
| A light wrist or small arm joint | PRH19-57-25-HS |
| Shoulder or elbow joints | PR20-102-130-HS or PR21-100-140-HS |
| Hip, knee or heavy load joints | PR64-110-500 or PR43-120-600-HB |
Before You Buy
- Check mechanical fit: confirm the wrist flange or mounting interface of your robot before ordering a hand.
- Match voltage: PRM10 linear actuators run on 12 V DC and the rotary modules on 48 V, so plan power distribution accordingly.
- Plan your control stack: Xynova supplies upper level software with APIs for coordinating multiple modules. Confirm the protocol and SDK support your team needs.
- Size torque with margin: peak torque is not continuous torque. Request full datasheets for duty cycle figures before final selection.
- Request a quote for volume: actuators are typically ordered in sets for a full robot, so quote pricing for the exact quantity you need.
Pricing and Availability
The Xynova Flex 2 can be added to your cart directly from this page. The Prima 1 hand and all PRM10 and planetary rotary actuators are available by quote, which lets you configure quantities and confirm lead times for your project. Add the models you want to your quote and our team will respond with pricing and cost details.
Frequently Asked Questions
What is the difference between the Xynova Flex 2 and Prima 1?
The Flex 2 uses a hybrid tendon and direct drive system with 23 degrees of freedom and is built for durable real world deployment. The Prima 1 is fully direct drive with 22 degrees of freedom and is designed for research, data collection and model training.
How much weight can the Xynova Flex 2 hold?
The Flex 2 supports a single hand grasp load of 12 kg and a rated continuous operating load of 4 kg, according to the manufacturer.
What voltage do Xynova actuators use?
PRM10 micro linear actuators operate on 12 V DC. Xynova planetary rotary actuators use a 48 V input.
Which Xynova rotary actuator has the most torque?
The PR43-120-600-HB has the highest peak torque in the lineup at 600 Nm. The PR64-110-500 delivers 500 Nm at a much lighter 1.6 kg.
Can I buy Xynova actuators individually?
Yes. Each PRM10 linear actuator and planetary rotary module is listed separately on this page and can be added to a quote in any quantity.
Where can I buy Xynova robot hands and actuators?
You can buy the full Xynova lineup right here on this page. Add the Flex 2 to your cart, or request a quote for the Prima 1 and any Xynova actuator.
Summary
Xynova focuses on the part of a humanoid robot that does the most delicate work: the hand. The Flex 2 brings hybrid drive strength and durability to deployment, the Prima 1 gives researchers a transparent direct drive platform, and the PRM10 and planetary actuator families supply the motion behind fingers, wrists and major joints. Whether you plan to buy a single hand for a lab or price a full set of actuators for a new robot, you can compare every model and order or request a quote from this page.