Zero Backlash Direct Drive Voice Coil Motor VCAR0035 35N Peak Force

The VCAR0035-0105-00A is a high-performance cylindrical voice coil motor designed specifically for applications requiring zero backlash, direct-drive precision, and fast dynamic response. As part of the SUPT MOTION VCAR0035 series, this voice coil motor delivers a peak thrust of 35 N in a compact form factor, making it an excellent choice for precision positioning systems, semiconductor manufacturing equipment, optical alignment platforms, and medical device automation. Unlike traditional rotary-to-linear conversion mechanisms, which generate mechanical backlash and friction, this direct-drive voice coil motor produces linear motion by applying electromagnetic force directly to the moving coil assembly, completely eliminating intermediate transmission components. The resulting motion system inherently features zero backlash, sub-micron positioning repeatability, and requires no maintenance over millions of cycles. The VCAR0035-0105-00A has a rated continuous thrust of 15.6 N at an ambient temperature of 25°C and a total stroke of 10.5 mm, providing an ideal balance of thrust output, stroke range, and compact design for high-precision applications with limited space.
This cylindrical voice coil motor design incorporates a permanent magnet stator assembly and a lightweight voice coil, which work together to generate linear thrust proportional to the applied current while maintaining excellent linearity throughout the entire stroke range. This linear relationship between thrust and current simplifies the integration of servo control and enables smooth, cogging-free motion across a speed range from sub-micrometers per second to over 100 mm/s. The VCAR0035-0105-00A is powered by DC voltage with a maximum rated voltage of 11.9 V, offering flexible compatibility with a wide range of servo drives and motion controllers. Its moving coil weighs only 91 grams, contributing to the motor’s excellent acceleration capabilities and high-frequency reciprocating motion performance. With a back-EMF constant of 5 V/m/s, this motor provides excellent speed feedback characteristics for closed-loop control systems, enabling precise speed regulation and position holding without the need for auxiliary sensors in a variety of configurations.

• Zero Backlash Direct Drive: The electromagnetic direct drive architecture eliminates mechanical transmission components such as lead screws, belts, and gearboxes, achieving inherently zero backlash motion with no wear-prone interfaces. This design ensures consistent positioning accuracy over the entire service life without periodic adjustment or recalibration.
• 35N Peak Force Output: Capable of delivering 35 Newtons of peak force, the VCAR0035-0105-00A handles demanding acceleration profiles and high-speed point-to-point movements while maintaining precise trajectory control. The continuous force rating of 15.6N supports sustained operation in holding and pressing applications.
• High Precision Positioning: With sub-micron level positioning resolution achievable through high-resolution encoders and advanced servo tuning, this voice coil motor meets the exacting requirements of semiconductor die bonding, optical fiber alignment, and micro-dispensing systems where micron-level accuracy directly impacts process yield and product quality.
• Rapid Dynamic Response: The lightweight moving coil assembly weighing only 91g enables sub-5ms mechanical response times, making this VCM ideally suited for high-frequency scanning, vibration generation, and fast settling applications where throughput and cycle time reduction are critical performance metrics.
• Compact Cylindrical Form Factor: With a stator diameter of 50mm and an overall length of 67mm, the VCAR0035-0105-00A integrates easily into space-constrained machine designs, allowing multiple axes to be packaged in close proximity for multi-degree-of-freedom motion platforms and compact instrumentation.
• Smooth Cogging-Free Motion: Unlike iron-core linear motors that exhibit cogging forces due to slot effects, the ironless moving coil design of this cylindrical voice coil motor produces perfectly smooth motion with zero detent force, enabling ultra-precise velocity control at extremely low speeds without servo dither.
• Long Operational Lifetime: The non-contact electromagnetic force generation principle means there are no brushes, commutators, or mechanical wear components within the motor itself, delivering a service life that routinely exceeds hundreds of millions of cycles when operated within rated specifications and proper thermal management guidelines.

The VCAR0035 Series cylindrical voice coil motor is deployed across a diverse range of industries where zero backlash direct drive motion and high precision positioning are fundamental requirements. In semiconductor manufacturing, these voice coil motors drive wafer probing stages, die bonding heads, and wire bonding Z-axis actuators, where micron-level placement accuracy directly influences chip packaging yield and reliability. The zero backlash characteristic ensures consistent touchdown force control during delicate bonding operations, preventing damage to sensitive semiconductor substrates.

In the optical and photonics industry, the VCAR0035-0105-00A serves as a focusing and alignment actuator for laser processing systems, fiber optic alignment stations, and lens positioning mechanisms within high-resolution imaging equipment. The smooth cogging-free motion characteristic enables continuous scanning without image artifacts, while the high force-to-weight ratio supports rapid autofocus response in dynamic imaging environments. Medical device manufacturers integrate this voice coil motor into automated liquid handling systems, micro-pump actuators, and surgical robot end-effectors where precise force control and sterility-compatible operation are essential for patient safety and procedural accuracy.

Industrial automation applications include high-speed pick-and-place modules for electronic component assembly, precision dispensing systems for adhesive and solder paste application, and vibration-assisted machining platforms where controlled high-frequency oscillation improves surface finish quality and tool life. The VCAR0035-0105-00A also finds application in aerospace test equipment, where its reliability under temperature cycling and vibration exposure has been validated through rigorous qualification testing. Academic and research laboratories utilize this voice coil motor in custom instrumentation setups including scanning probe microscopes, material testing apparatus, and haptic feedback development platforms, taking advantage of its linear force-current relationship and straightforward integration with standard laboratory servo controllers.

Each VCAR0035-0105-00A cylindrical voice coil motor undergoes comprehensive factory testing including force constant verification, stroke linearity measurement, electrical resistance and inductance characterization, and back EMF constant validation before shipment. Every unit is individually packaged in anti-static foam within a reinforced carton to prevent mechanical shock and contamination during transit. SUPT MOTION provides full traceability documentation including serialized test reports for each motor, and offers technical support for drive electronics selection, thermal management design, and system-level integration guidance. Customization options are available for stroke length, force rating, coil resistance, mounting interface geometry, and feedback sensor integration upon request. With CE and ISO9001 certifications, the VCAR0035 Series meets international quality and safety standards for global deployment in industrial, medical, and research applications.