CubeMars builds production-ready quasi-direct-drive actuators and frameless torque motors for humanoid robots, exoskeletons, quadrupeds and collaborative manipulators, supporting customers from lab prototyping through mass manufacturing rather than building robots itself.
To dive deeper into CubeMars' technology, market strategy, and product roadmap, Humanoid Press interviewed CEO Darrel Song. Below is the full interview detailing the company's vision, U.S. and European expansion, technical differentiation, and growth priorities.
1. Vision & Leadership
Humanoid Press: As CEO, what is your core vision for CubeMars, and how do you see the company contributing to global humanoid robotics and embodied AI?
Darrel Song: Our core vision is to democratize high-performance robotic motion. Actuators are the "muscles" of humanoid and embodied AI systems, yet many innovators face high costs, long development cycles and real-world reliability challenges.
CubeMars aims to remove these barriers. By delivering production-ready quasi-direct-drive actuators and frameless torque motors, we let robotics teams focus on AI, algorithms and product innovation rather than building motion hardware from scratch. We support customers from lab prototyping through mass manufacturing. We do not build robots ourselves — we empower the global robot-building community.
2. U.S. & Western Market Strategy
Humanoid Press: How will CubeMars strengthen its position in the U.S. and Europe amid fierce actuator competition? Which areas will drive growth?
Darrel Song: We already serve hundreds of labs and commercial robotics customers across North America and Europe. As humanoids move from demos toward commercial scale, we will advance on multiple fronts.
We will optimize our product portfolio for local certification, thermal performance and shock resistance, covering full humanoid joint requirements. Leveraging our large-volume manufacturing base, we focus on competitive total-cost-of-ownership instead of pure component pricing.
Local inventory, responsive application engineering and value-added channel partners become critical. We will deepen OEM and co-development partnerships with key robotics OEMs. Superior product performance remains foundational, but local support and flexible customization will define our market success.
3. Building a Stronger Local Presence
Humanoid Press: Local inventory and fast technical support are vital for Western robotics start-ups. How will CubeMars improve local support in the U.S. and Europe?
Darrel Song: Long lead-times and delayed engineering feedback are major pain-points for Western developers. Our strategy rests on four pillars: establish regional stock hubs for fast sample and small-batch delivery; grow value-adding local channel partners capable of mechanical integration and on-site tuning; add application-engineering resources aligned with U.S. and European time-zones; and expand public CAD files, simulation models and partner-enablement programmes.
We follow a hybrid model: core R&D stays centralized, while inventory, front-line technical support and repair capacity move closer to our overseas customers.
4. Technological Differentiation
Humanoid Press: What technical advantages set CubeMars actuators and motors apart from global competitors?
Darrel Song: Our key edge comes from in-house capabilities across electromagnetic motor design, precision gearing, embedded firmware and high-volume manufacturing.
We deliver high torque density in compact form-factors for both integrated quasi-direct-drive actuators and hollow-shaft frameless motors. Thermal management is a major differentiator — our designs reduce temperature rise under sustained heavy loads, a well-known bottleneck for humanoid locomotion and exoskeletons.
Our dual-encoder hardware and self-developed FOC firmware enable fast, stable multi-mode control with low backlash and good backdrivability for safe human-robot interaction. Equally important, we maintain tight unit-to-unit consistency not just for prototypes, but for serial mass production. We prioritize real-world durability over pure datasheet peak numbers.
5. Integrated Actuators vs. Frameless Motors
Humanoid Press: How will the market balance integrated actuator modules versus frameless-motor custom joints for next-generation humanoids?
Darrel Song: The two architectures will co-exist, addressing different engineering trade-offs.
Plug-and-play integrated quasi-direct-drive actuators accelerate time-to-market. They are ideal for start-ups, research teams and mid-volume programmes where fast iteration matters most.
Frameless motors give mechanical teams maximum design freedom to optimize joint weight and size. They are particularly well suited to large-scale humanoid projects that require fully customized joint designs.
We observe an emerging hybrid workflow: many customers start with integrated actuators to validate robot architecture, then migrate selected joints to custom joint designs based on frameless motors for mass production. That is exactly why CubeMars maintains both product families.
6. Future Growth & Product Roadmap
Humanoid Press: What are CubeMars' main growth priorities over the next 3-5 years, and what new technologies can the robotics community expect?
Darrel Song: Our three-to-five-year priorities are: advance humanoid-optimized actuation platforms; scale into adjacent verticals including exoskeletons, quadruped robots and collaborative manipulators; and mature end-to-end capabilities supporting customers from prototypes to high-volume production ramps.
Developers can expect expanded quasi-direct-drive actuators covering full humanoid joint ranges — including high-torque locomotion units and ultra-compact wrist-hand actuators. We will also broaden our frameless-motor lineup together with matched external drives. Enhanced firmware, force-control algorithms and better ROS-compatible tooling will raise our software-defined value.
Manufacturing quality at scale will remain critical. Our mission stays unchanged: build superior motion components and enable global innovators to create practical embodied AI robots.
Conclusion
It was a distinct pleasure interviewing such a forward-thinking leader in the global robotics industry. As the commercialization of humanoid robotics accelerates across Western markets and worldwide, CubeMars' commitment to bridging the gap between prototyping and high-volume mass production positions them as a critical infrastructure partner for the future of embodied AI. We look forward to tracking their continued growth, local hub expansion, and hardware innovations in the years ahead.
Key Takeaways for Industry Leaders & Developers
- Component-First, Not Robot-First: CubeMars deliberately stays out of building complete robots, positioning itself as infrastructure that lets robotics teams focus on AI and product rather than motion hardware.
- Thermal Performance as Differentiator: Reduced temperature rise under sustained heavy loads directly targets a known bottleneck in humanoid locomotion and exoskeleton applications.
- Hybrid Local-Global Model: Centralized R&D paired with regional stock hubs, time-zone-aligned application engineering, and local channel partners aims to close the lead-time gap that frustrates Western developers.
- Two Architectures, One Roadmap: Rather than picking a side, CubeMars is building for a hybrid customer workflow — integrated actuators for fast iteration, frameless motors for mass-production joint customization.

