Changzhou Mingseal Robot Technology Co., Ltd.

Problem A Korean camera module maker needed a robust inline solution to apply dust‑capture adhesive and reinforcement glue to IR filter assemblies. Manual dosing and separate stations caused low UPH, inconsistent glue coverage, particle contamination during handling, and variable cure quality that led to rework and yield loss. Cause  Key causes were operator variability, fluid viscosity drift in small‑volume dispensing, and process handoffs between separate machines that introduced alignment errors and particle ingress. The client required a single cell capable of performing two sequential processes—dust-capture (capture glue) and structural reinforcement—while maintaining precise dot/line geometry and repeatable cure performance. Solution Overview Mingseal deployed the FS200A Inline Visual Dispensing Machine configured as a dual‑station cell to run two dedicated processes in one footprint: Station A for dust‑capture adhesive application and Station B for reinforcement glue and in‑line pre‑cure. The FS200A’s dual‑head architecture, integrated vision alignment, syringe cartridge feeding with heated sleeves, and piezoelectric jet valve compatibility provided the core capabilities to meet process demands. Process Design Dual‑station flow: Two independent tracks allow Station A and Station B to operate in parallel on different boats or run synchronously on the same boat for mixed workflows, doubling UPH compared to a single‑station layout.Dust‑capture glue (Station A): Piezo jetting deposits micro‑dots and short lines around the IR filter perimeter to capture particulate during downstream handling. The vision system verifies dot count, position and dot diameter immediately after dispense.Reinforcement glue + pre‑cure (Station B): The second head applies structural epoxy fillets at lens corners and critical mounting points. Heated syringe sleeves maintain consistent viscosity; optional UV/thermal pre‑cure reduces flow before final cure.Recipe and MES integration: Recipes for dot/line patterns, jet pulse, syringe temperature, and vision tolerances are stored and managed via MES/PLC, ensuring traceability and fast changeovers. Integration and Control The FS200A’s high-resolution motion system delivers 1mm repeatability across the required micro‑dispense range, while the integrated vision aligns each IR filter and compensates for XY/Tilt offsets. Dual independent valves let the two stations work with different adhesive chemistries (capture glue vs. epoxy) without cross-contamination. Fast metering and separated tracks keep one lane running if the other requires maintenance, preventing full-line stoppage. Results Increased UPH: Dual-station layout produced up to a 2× throughput increase versus the previous single-station workflow, meeting the customer’s volume targets with existing footprint.Consistent dust-capture performance: Vision‑verified micro-dots achieved tight dot-size control, enabling predictable particulate capture and reducing downstream cleaning rejects.Improved structural reliability: Reinforcement fillets applied with controlled mass and pre‑cure lowered lid delamination and vibration‑induced failures during mechanical testing.Reduced rework and material waste: Syringe heating and closed‑loop metering stabilized viscosity, reducing over‑apply and stringing incidents.Higher line availability: Separated track design and dual independent heads allowed continued operation during localized maintenance, improving overall equipment effectiveness (OEE). Best Practices for Korean Camera Lines Validate capture‑glue rheology and piezo pulse settings in FAT to lock dot mass and adhesion behavior.Use vision AOI thresholds tied to downstream optical performance checks to close the quality loop.Implement pre‑cure recipes in Station B to control flow before final cure, especially for tight KOZs.Leverage MES logging for SPC-driven predictive maintenance of piezo valves and syringe heaters. Conclusion  For Korean smartphone camera manufacturers, FS200A provides a compact, dual‑station inline solution that integrates dust‑capture and structural reinforcement in a single automated cell. With piezo jet compatibility, syringe temperature control, and vision‑guided precision, FS200A delivers higher UPH, consistent adhesive performance, and improved yield—facilitating a reliable transition from manual to automated camera-module assembly. Contact Mingseal for pilot trials and process qualification for your IR filter and module designs.

Problem  A medical-device subcontractor in Vietnam producing hearing‑aid inductors relied on manual assembly for mounting delicate diaphragms and plastic housings. Manual dispensing of epoxy and hand placement led to inconsistent adhesive dots, glue overflow, scattered splatter, and variable acoustic performance. High labor costs, slow operating times, and quality rework impeded scale-up for growing demand in medical-grade devices. Cause  Primary causes were operator variability in dot placement and volume, limited control of micro-dispense when using piezo valves by hand, and poor synchronization between adhesive dosing and component placement. Open workstations increased contamination risk (particles) that degrades acoustic parts. Lack of inline inspection and process traceability prevented rapid root-cause analysis and continuous improvement. Solution — AC100 Fully Automatic Mount & Dispense Machine Mingseal deployed the AC100 inline mounting and precision dispensing machine configured for the customer’s diaphragm-and-housing process. Key system choices and process parameters: Dispensing hardware: piezoelectric jet valve for low-volume, high-repeatability epoxy dispensing; programmed for 8–12 dots per part with 0.27 mm target dot diameter. System supports both dot and short-line modes to meet design variants. Mounting integration: linear-motor mounting head with DD motor compensation for sub-millimeter placement accuracy of diaphragms onto inductors and housings onto assembled units. Motion & orientation: vision module with auto-focus verifies part orientation; camera-guided pick-and-place corrects XY/Tilt deviation before dispense and mounting. Clean handling and traceability: enclosed transfer conveyor with track lifting reduces particle ingress; MES-compatible communication logs recipes, dispense mass, and AOI results for each part. Inspection & correction: inline glue-shape AOI inspects dot count, dot diameter (± tolerance), and spread immediately after dispense; feedback adjusts jet parameters or reroutes parts for rework. Tilt & multi-angle dispensing: tilting module enables angled shot positions for edge dots and internal cavity fills without nozzle collisions. Implementation and Process  Flow Workflow: auto load → vision alignment → dispense (8–12 dots, 0.27 mm) → AOI glue inspection → pick-and-place diaphragm → placement quality detection → optional pre-cure → unload. Recipes were established per SKUs: dot count, spacing, jet pulse energy, and line-mode parameters. Pre-curing module reduced handling time before full cure in the downstream oven. Results Yield and quality: first-pass yield improved by >85% due to consistent dot geometry and precise diaphragm placement; overflow and scatter incidents decreased by over 90%.Glue-volume control: piezo jetting eliminated over-apply and smearing; target dot diameter 0.27 mm held with tight repeatability across multi-shift runs.Throughput and labor: automation reduced cycle time per part and cut manual labor hours by more than 60%, enabling scale-up with existing headcount.Contamination and reliability: enclosed handling and vision-guided placement reduced particulate-induced failures, improving acoustic consistency and device reliability in downstream tests.Traceability and process improvement: MES logging and AOI data enabled quick root-cause analysis and drove continuous parameter tuning across material lots. Best Practices and Recommendations Validate epoxy rheology and jet pulse settings during FAT to ensure stable 0.27 mm dots under factory temp/humidity. Use AOI thresholds correlated with final acoustic tests to tune acceptable spread and dot mass. Schedule predictive maintenance for piezo valves based on shot counts and weight-drift metrics. Combine pre-cure with downstream oven profiles to shorten line dwell while preserving adhesive integrity. Conclusion  For Vietnamese hearing-aid component manufacturers, AC100 converts manual diaphragm and housing assembly into a repeatable, traceable, high-throughput process. By combining piezo micro-jet dispensing, vision-guided placement, and inline glue inspection, the solution ensures precise 8–12 dot epoxy patterns (0.27 mm diameter) with minimal overflow — delivering consistent acoustic performance, higher yield, and scalable production. Contact Mingseal for pilot qualification and process tuning for your specific parts and epoxy formulation.

Problem Indian manufacturers producing voice coil motors (VCMs) for smartphone camera actuators face increasing demands for sub-micron placement accuracy, repeatable adhesive volume control, and higher line throughput. Inconsistent adhesive application and placement errors lead to reduced valve performance, increased vibration, and higher rejection rates during optical testing. The customer required a single automated cell that could handle both dispensing and pick-and-place sequences with robust process verification to scale from pilot to mass production. Cause Traditional benchtop cells or separate dispensing and mounting stations introduce handoffs, alignment drift, and synchronization issues. Manual interventions increase contamination risk and throughput losses. Many automated cells lack multi-valve flexibility, real‑time glue effect detection, or the kinematic range needed for complex VCM geometries (angled surfaces, small annular cavities). In addition, high-mix production demands quick changeovers and synchronized control with factory MES systems — capabilities missing in legacy equipment. Solution: AC100 Inline Mounting & Precision Dispensing Machine Mingseal deployed the AC100 — a next-generation, fully automatic mounting and precision dispensing system — for a VCM assembly line in India. Designed around optical-component assembly requirements, AC100 combines high repeatability, multi-process flexibility, and inline traceability to address VCM-specific challenges: Dual-mode process capability: AC100 supports both “dispense + mount” and “mount + dispense” flows within one cell, enabling the same station to run glue-first or placement-first recipes as the product design requires. This flexibility reduces footprint and changeover time. Four-valve simultaneous dispensing: Up to four dispensing valves operate in parallel for multi-point glue patterns used in stator/coil fixation and damping pads, boosting throughput while keeping each deposit identical. Professional glue-effect detection: Inline optical inspection evaluates glue shape, spread, and wetting immediately after dispense. This feature allows in-line correction before mounting, significantly reducing downstream failures. High-precision motion and compensation: Linear motor modules for dispensing and mounting, combined with vision-guided auto-focusing, provide sub-millimeter placement accuracy and Z-compensation for part variation and wafer/fixture bow. Advanced dispensing compatibility: The dispensing station accepts piezoelectric jet valves and features a tilting/rotating axis for angled or multi-surface dispensing. This supports complex VCM geometries such as chamfers or inner cavity shots that require oblique approaches. Clean, closed handling and MES integration: Enclosed handling minimizes particle contamination critical for VCM magnetic gaps, while standard semiconductor/industry communication protocols enable recipe control, traceability, and full MES integration. Integration and Results AC100 was integrated into the customer’s inline VCM assembly cell with automated feeders and vision alignment. Typical recipe: piezo jet micro-drops for preload damping pads followed by high-precision placement of coils and magnet assemblies. The tilting axis enabled consistent inner-cavity glue application without nozzle collisions. Key outcomes: Glue consistency improved: inline glue-effect detection reduced dispense defects by over 85%, ensuring uniform adhesive fillets and bonding area. Placement accuracy increased: sub-millimeter repeatability reduced actuator out-of-spec incidents by 70%, improving acoustic and optical stability. Throughput gains: four-valve parallel dispensing and combined process flow cut cycle time per unit by ~30% compared to separated stations. Reduced downtime and faster changeovers: flexible valve interfaces and centralized recipe management supported mixed‑model production with minimal operator intervention. Recommendations for Indian VCM Lines Use piezo jet for micro-dosing and structural adhesive via screw/servo valves for bulk bonding as needed. Calibrate vision and Z-mapping per fixture to leverage auto-focusing and warpage compensation. Enable MES traceability to collect dispense metrics and feed them into predictive maintenance. Conclusion  For Indian camera actuator producers, AC100 delivers a compact, highly flexible, and verifiable solution for VCM assembly. By combining simultaneous multi-valve dispensing, precision mounting, and glue-effect inspection in one automated cell, AC100 helps manufacturers move from manual or disjointed processes to reliable, high-volume production while preserving product performance and yield. Contact Mingseal for pilot trials and process qualification tailored to your VCM designs.