High Power Density Micro Motor Quote for Robotics Actuators

Understanding the Demand for High Power Density Micro Motors in Robotics

Robotics engineers searching for a high power density micro motor quote for robotics are typically confronting a common engineering constraint: the need to deliver substantial torque and precise motion control within an extremely limited footprint. This challenge is especially pronounced in dexterous robotic hands, highly integrated robots, medical devices, and industrial automation systems, where space, weight, and thermal budgets are tightly restricted. VAXOR-MOTOR, operating under the AXOR brand, addresses this industry pain point directly through an integrated micro-actuation platform that combines axial flux motors, micro cycloidal gear reducers, and non-contact absolute magnetic encoders into compact, ready-to-deploy modules.

VAXOR-MOTOR / AXOR: Engineering High Torque Density Through Integrated Design

VAXOR-MOTOR positions itself as a provider of integrated micro-actuation solutions, with a strategic focus on axial flux motor technology, cycloidal gear reduction, and encoder integration. The company's core value proposition centers on achieving high torque density and rigidity by combining these three technologies within a single compact assembly, rather than treating motor, gearbox, and sensor as separate components sourced independently.

Axial Flux Motors and Micro Cycloidal Reducers

The electromagnetic design underpinning VAXOR-MOTOR's actuator modules optimizes phase imbalance to within 5%. This tight control over phase imbalance is a critical yield and reliability factor for ultra-micro motors, where manufacturing tolerances at small scale can otherwise introduce significant performance variation. By keeping phase imbalance within this 5% threshold, the electromagnetic system supports both higher production yield and consistent power density across units.

Paired with the axial flux motor, VAXOR-MOTOR integrates micro cycloidal gear reducers to boost torque output without proportionally increasing size. Depending on the module, gear efficiency reaches up to 75%, and backlash is controlled as low as 15 to 20 Arcmin—figures that directly translate into more accurate, repeatable joint motion for robotic applications.

Non-Contact Absolute Magnetic Encoders

Precision motion control also depends on reliable position feedback. VAXOR-MOTOR incorporates non-contact absolute magnetic encoders into its joint modules, enabling high-precision motion control without the wear-related failure modes associated with contact-based sensing. This encoder integration is delivered through a standardized FPC 7PIN interface (0.5mm pitch), supporting VCC, GND, CS, SCK, MOSI, MISO, and CAL (calibration) lines, which simplifies wiring and integration into robotic limbs.

Product Lineup: Micro Joint Actuator Modules

VAXOR-MOTOR's Micro Joint Actuator Modules are positioned as precision actuation solutions for dexterous robotic hands, highly integrated robots, and mechanical motion control, spanning actuator diameters from Φ16mm to Φ30mm.

Φ16mm Micro Joint Module (X16S / X16L)

The Φ16mm module is built for precision micro-manipulation in highly integrated robotic systems. The S-version weighs as little as 24.3g, while the L-version weighs 26.1g. Continuous stalling torque exceeds 7.1 mNm, with maximum stalling torque above 16.5 mNm. Integrated gear reduction is available in ratios of 30, 40, and 50, delivering high torque within the 16mm diameter footprint. The module communicates via SPI for low-latency control response, and chassis temperature limits of 80°C, 115°C, or 145°C are defined according to power loss, helping prevent overheating during operation.

Φ20mm Micro Joint Module (X20S / X20L)

Designed for medium-load precision actuation in bionic and automation applications, the Φ20mm module delivers continuous stalling torque above 17.2 mNm and maximum stalling torque above 35.3 mNm. It supports 12V, 24V, and 48V operation, offering versatile voltage compatibility. A multi-ratio gearbox is available in 15, 30, and 50 ratios, balancing speed and torque requirements. At the assembly level with a ratio of 50, stalling torque reaches up to 450 mNm, supporting high-load robotic joints. The standardized FPC 7PIN interface simplifies integration into robotic limbs.

Φ25mm Micro Joint Module (X25S-UZ / X25S-BZ)

This module targets high-torque needs in industrial and medical robotics, communicating over the CAN FD protocol for robust performance in industrial environments. Continuous stalling torque reaches up to 1150 mNm at a ratio of 50. Backlash is reduced to 15 Arcmin for high motion accuracy, and mechanical strength limits extend to 1800 mNm initial torque in a cold state, suitable for peak load scenarios.

Φ30mm Micro Joint Module (X30S-UZ / X30S-BZ)

The Φ30mm module is positioned for heavy-duty micro-robotic applications, with continuous stalling torque up to 1500 mNm at a ratio of 50 and gear efficiency reaching up to 75% at a ratio of 30. It also supports CAN FD integration for complex multi-joint robot network architectures, with total inertia of 30.4 gcm² providing stability during high-load motion.

Ultra-Micro Brushless & Coreless Motors: G04P / G05P / G06P Series

Beyond joint modules, VAXOR-MOTOR offers the G04P, G05P, and G06P series of ultra-micro brushless and coreless motors, positioned as optimized electromagnetic components for medical robots, drones, and wearables. These motors weigh between 1.7g and 3.75g while reaching no-load speeds up to 63,000 RPM, addressing the high cost and low yield historically associated with sub-6mm motor production. Phase imbalance is kept within 5%, supporting cost efficiency and reliability. Chassis temperature ratings reach up to 145°C, and terminal resistance is as low as 1.6Ω, improving electrical efficiency. These characteristics make the series applicable across micro-surgical robots, precision optical adjustments in photonics, and miniature haptics or pumps in consumer electronics.

Platform Compatibility and Integration

VAXOR-MOTOR's product platform supports 12V, 24V, and 48V DC bus systems, with communication handled through SPI or CAN FD protocols depending on the module. The standardized FPC 7PIN interface (0.5mm pitch) is used consistently across the joint module lineup, covering power, control, and calibration signals. This consistency supports straightforward integration for robot manufacturers, medical device developers, and industrial system integrators evaluating actuation hardware for new platforms.

Proven Performance Across Industries

VAXOR-MOTOR's modules have been applied across several documented use cases. In robotic dexterous hands, X16 and X20 modules have been used to achieve high-integration mechanical motion control, enabling human-like finger dexterity. In industrial automation, Φ30mm modules have been integrated into precision transmission systems, achieving gear efficiency of 75% while reducing mechanical backlash to 15 Arcmin. Micro pump systems have employed G05P ultra-micro motors operating at 55,000 RPM to drive fluid transmission in medical and consumer applications, and photon optics applications have applied ultra-micro brushless motors for precision positioning, benefiting from the sub-5% phase imbalance for stable performance.

Requesting a Quote

For robotics engineers and system integrators evaluating a high power density micro motor quote for robotics projects, VAXOR-MOTOR provides detailed technical specifications and test data covering torque, speed, and thermal parameters for its electric drive assemblies. Product-based pricing applies across the standardized X16, X20, X25, and X30 series, with hardware delivered as ready-to-integrate modules using FPC 7PIN interfaces or CAN FD/SPI communication protocols. Technical inquiries and discussions regarding product specifications and operational parameter ranges remain open for interested robotics, medical device, industrial automation, and consumer electronics developers.