Precision modular robotic joint with servo motor and planetary gearbox

• ✔ Highly integrated micro-servo joint with planetary gearbox and drive.
• ✔ Precision metal planetary gearbox with low backlash (better than ±0.2 degrees).
• ✔ Powerful brushless motor with ultra-long lifespan (>5000 hours).
• ✔ Dual absolute encoder for precise positioning without data loss after power failure.
• ✔ Simplified wiring and reliable communication via CAN serial bus.
• ✔ Compact dimensions and low weight for energy-saving operation.
• ✔ Ideal for bionic, educational and multi-joint robotic applications.

Introducing the ultimate solution for advanced robotics and CNC applications – the Integrated Planetary Servomotor Joint. This modular actuator combines a precision planetary gearbox, a powerful torque motor and a professional servo drive in one compact unit. It is designed to provide unmatched precision and reliability for your most demanding projects.

⚙️ What makes this joint special?

• Precision metal planetary gearbox: High torque resistance, backlash better than ±12 arc minutes (0.2 degrees), low noise (<70 dB), and robust dual output bearing structure ensuring stability without axial play.
• High-density brushless rotary motor: An external rotor motor with an ultra-long lifespan exceeding 5,000 hours of normal operation, designed for demanding, continuous tasks.
• Dual Absolute Encoder: Two 16-bit absolute encoders ensure that the current position is not lost even after a power failure, without the need for an external backup battery.
• Integrated drive with bus control: Stable performance thanks to advanced FPGA design, CAN2.0A bus interface with 1.0 MHz speed, supports serial connection of up to 254 joints or I/O devices.
• Complete parameter settings: Integrated algorithms for path operating mode, acceleration and deceleration limits, speed, torque and temperature, allowing maximum control flexibility.
• Broad software support: User interface versions for UBUNTU and WINDOWS are available, with C/C++ API for quick and easy integration into LINUX (ROS) and WINDOWS systems.

🔬 Explore every detail

The SP modular robot joint is a highly integrated micro-servo unit that combines a precision planetary gearbox, a rotary motor and a professional servo drive into one unit. This integration minimizes wiring complexity and maximizes the reliability of the entire robotic system. In addition, the serial connection of the joints via the CAN bus greatly simplifies wiring and facilitates operation.

Its small size and high torque make this module ideal for applications requiring multi-joint combinations, such as bionic robots, animal simulations or educational robotic arms. Its low weight, starting at just 180g for the smallest variant, contributes to a significant reduction in power consumption during operation.

The integrated servo actuators effectively replace many traditional brushless motors and large servos due to their excellent price/performance ratio and stable performance. With a robust design and emphasis on long life, this module is ready for demanding tasks in a wide range of robotic applications.

❓ Are you bothered by the complexity of robotic structures?

Traditional robotic systems often suffer from complex cabling, high power consumption, and complex component integration. This leads to longer development cycles, higher costs, and increased risk of failure. Are you looking for a solution that eliminates these problems and allows you to focus on innovation?

💡 Get unmatched simplicity and performance!

Discover a revolution in robot design with our modular planetary servomotor joint. Its integrated design and serial CAN bus dramatically simplify wiring and reduce the risk of errors. Get high torque in a compact design, significantly reduce energy consumption, and speed up development with intuitive software and complete parameter settings.

✨ More than just features, real benefits

• Integrated design: Simplifies assembly and minimizes system complexity, saving time and resources. -> Benefit: Faster development and reduced integration costs.
• High torque density: Provides high power in a compact package, ideal for bionic and fine robotic applications. -> Benefit: Possibility of creating smaller and more powerful robotic structures.
• Dual absolute encoder: Ensures absolute joint position even after power failure without the need for reset. -> Benefit: Increased reliability and operational safety.
• Serial CAN bus: Dramatically simplifies cabling and communication between multiple joints. -> Benefit: Cleaner design, reduced risk of errors and easy expandability.
• Low weight and energy consumption: Increases robot uptime and agility. -> Benefit: More energy-efficient and dynamic robotic systems.
• Broad software support: Compatibility with Ubuntu, Windows, and ROS makes integration easy. -> Benefit: Rapid prototyping and deployment in various development environments.

🎯 Who is it the ideal choice for?

• Developers of advanced bionic robots and animal simulations.
• Engineers and students working on educational robotic arms and manipulators.
• Integrators of CNC machines and automation systems requiring precise and compact drives.
• Robotics researchers looking for reliable and programmable actuators.

🤔 Do you have any concerns? We'll answer them!

• Concern: Complex programming and integration into existing systems? -> Answer: Thanks to integrated algorithms, complete parameter settings, and the provided API for C/C++ on Linux (ROS) and Windows, integration is fast and intuitive.
• Concern: Lack of reliability and short lifespan? -> Answer: Robust metal gears, a brushless motor with a lifespan exceeding 5000 hours, and a stable FPGA design guarantee long-term and reliable operation even in demanding conditions.
• Concern: Loss of position after power failure? -> Answer: Dual absolute encoder with 16-bit accuracy ensures that the current joint position is never lost, even after an unexpected power outage, without an external battery.

📊 Technical specifications

Parameter	Value
Type	Integrated servo motor modular planetary joint
Gear material	Metal
Gearbox backlash	Better than ±12 arc minutes (0.2 degrees)
Transmission noise	<70 dB (high speed), quiet (low speed)
Output structure	Double bearing, no axial clearance
Engine type	High-density brushless external rotor torque motor
Engine life	>5000 hours of normal operation
Encoder type	Dual absolute encoder
Encoder accuracy	16bit*2
Power failure function	Position is not lost, without external battery
Drive design	FPGAs
Bus interface	CAN2.0A
Bus speed	1.0MHz
Serial connection support	Up to 254 joints or I/O devices
Current loop frequency	20 kHz
Speed ​​loop frequency	10 kHz
Position loop frequency	1 kHz
Software support for the user interface	UBUNTU, WINDOWS
API support	C/C++ API for LINUX (ROS) and WINDOWS systems
Supply voltage	24V
Power connector	XT30UPB-M
Communication connection	USB to CAN module (Canable_CandleLight)

❓ Frequently Asked Questions

What is the main benefit of the integrated design of this joint?

The main benefit is a dramatic simplification of the cabling and overall architecture of robotic systems. Integrating the gearbox, motor and drive into a single unit reduces the number of components and potential points of failure, leading to higher reliability and easier assembly.

What positioning accuracy can I expect?

The joint features a dual absolute encoder with 16-bit accuracy and a precision planetary gear with a clearance of better than ±12 arc minutes (0.2 degrees), ensuring extremely accurate and repeatable positioning, crucial for delicate and complex robotic tasks.

Is this module compatible with robot operating systems like ROS?

Yes, the product provides a C/C++ API that can be integrated into LINUX (ROS) and WINDOWS systems, allowing easy and quick implementation into existing development environments and maximizing flexibility for developers.

What happens to the joint position during a power outage?

Thanks to the dual absolute encoder, the joint remembers its position even after a power failure and does not require an external battery. When power is restored, it resumes exactly from the previous position, which is essential for the safety and integrity of the system.

What types of robots is this joint best suited for?

It is ideal for bionic robots and animals, educational robotic arms, and other multi-joint applications where small size, high torque, and precise motion control are key, such as for simulating fine movements.

What is the maximum number of joints that can be connected using the CAN bus?

Using the CAN2.0A bus interface, you can serially connect up to 254 joints or other I/O devices, allowing you to create complex robotic systems with minimal wiring complexity and efficient communication.

Can I set my own motion control parameters?

Yes, the integrated algorithm allows for comprehensive parameter settings, including path operating mode, acceleration and deceleration limits, speed, torque, and temperature, giving users full control over the joint's behavior.