Alva Industries at SPS 2026

The SPS Smart Production Solutions trade fair takes place from November 24 to 26, 2026, in Nuremberg, Germany, focusing on components and systems for industrial automation. At the event, direct-drive frameless motor systems and integrated geared actuator assemblies will be presented for motion control, robotics, semiconductor manufacturing, and precision optical machinery.

Core Technology and System Architecture
The core technology comprises slotless frameless motor architectures manufactured using continuous-fiber winding processes. Frameless motor kits integrate a rotor and stator directly into host machine housings without traditional external casings, coupling shafts, or dedicated bearing assemblies. Eliminating the slotted iron core removes magnetic reluctance variations, resulting in zero cogging torque and negligible torque ripple. The design incorporates a large through-hole aperture, allowing mechanical drive components, cabling, or optical paths to pass centrally through the motor assembly.

Deployment and Implementation
Systems are implemented through modular integration into specialized actuator designs and high-precision direct-drive configurations. In cooperation with Nabtesco, a super-short actuator integrates frameless stator and rotor components with cycloidal precision gearing, supported by digital motor controllers developed by adcos. In an assembly developed with Siboni, a direct-drive unit integrates a frameless motor with a FLUX inductive rotary encoder to enable closed-loop positional feedback. System prototyping and parameter calculation are executed through the TorqStudio digital platform, allowing engineers to configure winding options and thermal boundaries prior to production.

Industry Applications
Target sectors encompass robotics, semiconductor handling, precision optical gimbals, optronics, medical exoskeletons, and automotive testing simulators. In semiconductor and optronics applications, zero-cogging frameless direct-drives eliminate velocity fluctuations during low-speed tracking operations. In robotic joint design and exoskeletons, frameless configurations allow planetary or cycloidal gearheads to nest inside the motor diameter, minimizing axis length and maximizing mechanical stiffness.

Operational Impact and Performance Metrics
Integration of frameless direct-drive and compact geared systems delivers measurable improvements in power density and machine geometry. The Super-Short Actuator achieves an approximate thirty percent reduction in total axial length and overall mass compared to conventional servomotor-gearbox combinations. Frameless motors with outer diameters spanning 39 millimeters, 64 millimeters, and 88 millimeters maintain high peak torque thresholds without magnetic saturation, ensuring dynamic overload capability. Eliminating mechanical transmissions in direct-drive configurations removes mechanical backlash, enhancing positioning accuracy, thermal dissipation, and long-term drivetrain reliability across demanding industrial automation systems.

Edited by Evgeny Churilov, Induportals Media - Adapted by AI.

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