A Malaysian automotive supplier producing temperature and pressure sensors for engine control sought to replace manual thermal-grease application with an automated, robot-mounted dispensing solution. The manual process suffered from inconsistent bead size and variable adhesive mass, causing uneven thermal paths, rework, and periodic field failures. Target requirements included precise control of thermal-grease volume (repeatable dots and short bead starts), integration with existing robot arms, easy nozzle changeover for multiple sensor models, and a reliable feed for medium-to-high viscosity thermal compounds.
Mingseal proposed the wear-resistant KSV3000 concentric auger valve mounted on the customer’s six-axis robot end effector. The KSV3000 is designed for medium and high-viscosity materials and offers a high maximum flow rate (360 µL/s) with positive-displacement metering that tracks motor speed linearly — critical for matching production takt times while maintaining deposit consistency.
Positive-displacement auger metering: The concentric auger design eliminates pressure-pulse artifacts common with pressure-supply systems. By controlling motor rpm, the KSV3000 provides proportional, repeatable volume per cycle, reducing variation in dot mass and bead starts across thousands of parts.
High throughput and cycle matching: With a 500 rpm-capable drive and fast response, the valve synchronizes with robot motion profiles to produce short, precise deposits and rapid cycle times required by high-volume automotive lines.
Wear-resistant wetted path: The KSV3000’s wear-resistant materials handle abrasive thermal greases and silver-filled compounds without rapid erosion, ensuring long-term stability of dispense volume and minimizing maintenance downtime.
Short fluid path and anti-clog design: A compact, short-flow path reduces air entrapment and paste separation. Combined with matched nozzles and a quick-change interface, the system supports frequent format changes and simple cleaning procedures — important for multi-SKU production.
Inline process control and verification: Integration of the valve with the robot controller and a compact inline balance or camera-based AOI allows closed-loop verification of deposit mass and position. Recipes store rpm profiles, nozzle types, and robot trajectories for each sensor variant to ensure repeatable results and fast changeover.
Consistent thermal interface performance: Automated, metered deposition produced uniform grease mass and coverage at the chip-to-heat-sink interface, improving thermal conductivity predictability and reducing field failures caused by inconsistent thermal paths.
Reduced rework and scrap: Positive metering and recipe-controlled nozzles eliminated the majority of under- and over-apply defects seen in manual operations, lowering rework rates and material waste.
Labor optimization and safety: Replacing manual dispensing removed operator variability, reduced ergonomic strain, and freed skilled technicians for higher-value tasks while improving shop-floor safety around hot components.
Scalability and integration: The compact head and robot-ready mounting enabled straightforward retrofitting into existing robotic cells. MES-friendly recipe logging and traceable dispense parameters support quality audits and automotive traceability standards.
For Malaysian automotive sensor manufacturers transitioning from manual to automated thermal-grease dispensing, the KSV3000 concentric auger valve offers a robust solution: positive-displacement metering for precise mass control, wear-resistant construction for abrasive greases, fast response to match robot cycles, and compact, serviceable packaging for production environments. Together with inline verification and recipe management, the KSV3000 delivers repeatable thermal interface quality, reduced rework, and improved throughput—helping sensor assemblies meet automotive reliability and traceability requirements. Contact Mingseal to pilot the KSV3000 on your sensor designs and validate dispense recipes and nozzle selection.
