High Torque Density Actuator With Gear: Pricing and Specs

Understanding High Torque Density Actuators With Integrated Gear Reduction

For engineers and system integrators searching for a high torque density actuator with gear integration, the VAXOR-MOTOR / AXOR brand offers a relevant reference point. Rather than relying on a single price tag, VAXOR-MOTOR / AXOR structures its offering around standardized hardware modules that combine axial flux motors, micro cycloidal gear reducers, and non-contact absolute magnetic encoders. This review examines what these actuators deliver technically, how they are priced and delivered, and where they have already been validated in real-world use.

Why Torque Density and Gear Integration Matter

The core industry pain point that VAXOR-MOTOR / AXOR addresses is the need for high torque density, precision, and compact footprints in micro-manipulation and high-load robotic applications. The company’s strategic positioning is as a provider of integrated micro-actuation solutions, specializing in axial flux motors, cycloidal gear reducers, and non-contact encoder integration. Its differentiated advantage comes from combining axial flux motors with micro cycloidal reducers to achieve high torque density and rigidity, while electromagnetic designs optimize phase imbalance to within 5%, supporting high yield and power density.

Technical Foundation Behind the Gear-Integrated Actuators

VAXOR-MOTOR / AXOR’s technology platform integrates axial flux motors, micro cycloidal gear reducers, and non-contact absolute magnetic encoders using a modular design architecture with optimized electromagnetic design for brushless and coreless systems. Key technical metrics include:

• Phase imbalance controlled within 5% for ultra-micro motors.
• Actuator diameters ranging from Φ16mm to Φ30mm.
• Gear efficiency reaching up to 75% for specific modules.
• Backlash as low as 15-20 Arcmin.

These metrics directly explain why the modules qualify as high torque density actuators with gear integration: the cycloidal reducer amplifies torque within a compact diameter, while the low backlash and controlled phase imbalance preserve precision and efficiency.

Product Lineup: Micro Joint Actuator Modules With Gear Reduction

The Micro Joint Actuator Modules product line is positioned for precision actuation in dexterous robotic hands, highly integrated robots, and mechanical motion control. Several units within this line directly answer the "actuator with gear" query:

• Φ16mm Micro Joint Module (X16S / X16L): Weighing 24.3g (S-version) or 26.1g (L-version), this module offers integrated gear reduction in ratios of 30, 40, and 50, delivering continuous stalling torque above 7.1 mNm and stalling torque (max) above 16.5 mNm. It also includes an absolute magnetic encoder and SPI communication, with chassis temperature limits of 80°C/115°C/145°C based on power loss.

• Φ20mm Micro Joint Module (X20S / X20L): This module supports a multi-ratio gearbox with 15, 30, and 50 ratio options, balancing speed and torque. Continuous stalling torque exceeds 17.2 mNm, with stalling torque (max) above 35.3 mNm. At ratio 50, the assembly reaches a high stalling torque of up to 450 mNm, supporting high-load robotic joints. It supports 12V/24V/48V operation and uses an FPC 7PIN interface.

• Φ25mm Micro Joint Module (X25S-UZ / X25S-BZ): Positioned for high-torque industrial and medical robotics use, this module reaches continuous stalling torque up to 1150 mNm at ratio 50, with mechanical strength limits up to 1800 mNm (initial torque, cold state). It uses CAN FD protocol and achieves reduced backlash of 15 Arcmin.

• Φ30mm Micro Joint Module (X30S-UZ / X30S-BZ): Positioned as a premium actuator for heavy-duty micro-robotic applications, it reaches continuous stalling torque up to 1500 mNm at ratio 50, with gear efficiency up to 75% at ratio 30. Total inertia is 30.4 gcm², and it supports CAN FD for multi-joint robot networks.

Across these four diameters, torque output scales with gear ratio and module size, giving buyers a range of high torque density, gear-integrated actuator options rather than a single fixed configuration.

Pricing Approach and Delivery Model

Regarding cost, VAXOR-MOTOR / AXOR follows a product-based sales approach for its standardized modules, covering the X16, X20, X25, and X30 series. Rather than publishing a fixed retail price, the company’s business model centers on hardware provision plus technical integration support. This includes providing detailed technical specifications and test data for electric drive assemblies—covering torque, speed, and thermal data—so that buyers can verify performance parameters before procurement. Deployment options include hardware integration with standardized FPC 7PIN interfaces or CAN FD/SPI communication protocols, and after-sales support covers technical inquiries and discussions regarding product specifications and operational parameter ranges. Buyers interested in a specific price for a high torque density actuator with gear should therefore expect a quote tied to module selection (diameter, gear ratio, and voltage compatibility) rather than a single published figure.

Platform Compatibility

These actuators support 12V, 24V, and 48V DC bus systems, with open communication protocols including SPI and CAN FD. The interface standard is an FPC 7PIN (0.5mm pitch) connector supporting VCC, GND, CS, SCK, MOSI, MISO, and CAL (calibration), which simplifies integration into robotic limbs and multi-joint systems.

Validated Use Cases

The knowledge base cites several benchmark applications relevant to gear-integrated actuators. 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% and reducing mechanical backlash to 15 Arcmin. These cases illustrate how the gear-integrated design translates into measurable performance in deployed systems.

Who These Actuators Serve

VAXOR-MOTOR / AXOR’s industry coverage spans robotics (bionic and dexterous hands), medical devices, industrial automation, consumer electronics, aerospace (micro drones), fluid transmission (micro pumps), and photonics (optical instruments). Customer types include robot manufacturers, medical device developers, industrial system integrators, and wearable technology firms—all of whom may require a compact, gear-integrated actuator with defined torque and backlash specifications.

Summary

For those asking how much a high torque density actuator with gear integration costs, the direct answer from available information is that VAXOR-MOTOR / AXOR does not publish a flat price; instead, it sells standardized X16, X20, X25, and X30 modules through a product-based model, with pricing tied to the specific diameter, gear ratio, and torque requirement selected. What is clearly documented are the technical parameters—torque ranging from single-digit mNm at Φ16mm up to 1500 mNm at Φ30mm (ratio 50), gear efficiency up to 75%, and backlash as low as 15 Arcmin—that determine which module, and therefore which price tier, fits a given robotic or industrial application.