For high-volume electronics manufacturing, the stability of fluid processes directly determines product sealing, grounding, EMI shielding and long-term operational reliability. When manufacturers produce with high-viscosity adhesives such as RTV silicone, two-component silver conductive adhesive and two-part epoxy resin, they often encounter production pain points including offset dispensing trajectories, inconsistent bead width, unstable glue feeding, poor production-line compatibility and insufficient production-data traceability.
The SEC-DH600L In-line Vision Dispensing System is a complete set of equipment custom-developed, delivered and mass-produced by Second Intelligent for a global Fortune 500 enterprise. It is designed for high-volume RTV silicone sealing on PCBA assemblies.
As a national-level “Specialized, Refined, Unique & Innovative Little Giant” enterprise, Second Intelligent boasts more than 20 years of R&D and manufacturing experience in dispensing, potting and coating automation. Motion-control software, dispensing valve assemblies and glue-feeding systems are all self-developed, empowering us to undertake high-standard projects for world-leading enterprises.
Founded in Shenzhen in 2005, Second Intelligent employs over 400 staff, operates two domestic manufacturing bases covering more than 30 000 m² plant area. We hold ISO 9001, IATF 16949 and CE certifications, and own over 300 core-technology patents for fluid-application solutions. Our products are sold to more than 50 countries worldwide, with a mature distributor network covering Southeast Asia, South Korea, Mexico, India, Russia and other regions. Key industry milestones: China’s first domestically-developed 3-axis dispensing robot; China’s first 4-axis dedicated conductive-adhesive dispensing machine; the first-generation two-component potting machine; and a leading equipment supplier for hydrogen-fuel-cell packaging in China. We supply standard standalone machines as well as custom turn-key projects. MES and SEMA communication interfaces are supported to satisfy strict quality control and smart-manufacturing traceability requirements from top global manufacturers.
Fortune-500 PCBA RTV Silicone Dispensing Project
This custom SEC-DH600L in-line dispensing equipment performs automated RTV silicone dispensing on PCBA surfaces.
1. High-precision X-Y-Z Motion Platform
● Effective travel: X 600 mm × Y 600 mm × Z 100 mm; actual dispensing working area＞400 × 400 mm
● Repeat positioning accuracy: ±0.015 mm
● Max XY operating speed: 800 mm/s; max Z-axis speed: 200 mm/s
● HIWIN linear guides, TBI ball screws, Panasonic servo motors; 6-axis motion control including conveyor axis; max XY acceleration: 0.8 g
● Self-developed Logoshop software supports direct import of DXF, AI and NC files; continuous interpolation for dots, lines, arcs and complex-contour dispensing.
2. Dual-valve Fine-tuning Assembly & Medium Back-suction Dispensing Valve
● Dual dispensing heads support synchronous and asynchronous operation; head spacing adjustable from 75 mm-250 mm, each head with independent mechanical fine-tuning.
● Equipped with F-H101 medium back-suction dispensing valve with stainless-steel flow channel, compatible with fluids ranging 0-100000 cps viscosity. Fast valve closing effectively eliminates stringing and tailing defects for silicone, conductive adhesive and epoxy resin.
3. Adjustable-width Chain Pallet Conveyor
● Chain-driven pallet transportation with material flow direction from left to right.
● Track width adjustable 80-400-mm, compatible with multiple fixture pallets.
● Jacking cylinder plus linear bearing ensures precise product positioning; stopper cylinders realize product blocking.
● Maximum pallet payload: 5kg; conveyor running speed adjustable:10-150-mm/s.
● Equipped with in-feed and out-feed sensors; positioning press sheets on top of guide rails limit the height of fixtures and PCBA assemblies.
4. Automatic Glue-wiping Module
● Direct-driven by dual micro-motors for fast operation and superior cleaning performance.
● Needle cleaning by rotating brush wheels together with cleaning solvent; simple and fast component replacement.
5. 2600-mL Bulk Pressure-barrel Glue-supply Cabinet
● Pneumatic glue feeding for 2600-mL industrial bulk cartridges; applicable viscosity:1000-200-000-cps. Handles RTV silicone, two-component conductive adhesive, thermal conductive gel, epoxy resin, grease and other materials.
● Low-glue-level buzzer alarm reminds operators of cartridge replacement.
● Compatible with back-suction valves, screw valves, rotary valves and other valve types. Independent enclosed cabinet protects bulk glue cartridges on the production floor.
6. CCD Machine-vision Positioning System
● Hikvision 1.3-megapixel monochrome industrial camera; Mark-point single-point recognition time:200 ms.
● Optional coaxial, ring and strip light sources for different workpiece surfaces.
● Automatically compensates dispensing paths within allowable product offset tolerance; triggers alarm when deviation exceeds threshold.
● Supports barcode and 2D-code scanning; network-port output for MES integration to deliver full-process production traceability meeting automotive-grade quality standards.
The SEC-DH600L platform can be modified and adapted for multiple processes beyond PCBA RTV-silicone dispensing:
● Automotive electronics: sealing dispensing for on-board OBC, BMS, controller housings and sensor modules
● Two-component conductive-adhesive processes: PCB grounding, FPC bonding and RF-component interconnection
● EMI shielding: nickel-graphite conductive sealant dispensing for communication housings
● New-energy industry: sealing for fuel-cell assemblies and edge sealing of power modules
Why Global Fortune-500 Enterprises Choose Second Intelligent
● Full-stack in-house development: motion-control software, dispensing-valve hardware, vision algorithms and glue-feeding units are self-developed for faster custom modification and after-sales response.
● Proven Fortune-500-grade project experience: equipment design, documentation specifications, acceptance criteria and data-traceability functions fully comply with international automotive-electronics quality systems.
● Broad adhesive compatibility: supports single-component silicone, two-component conductive adhesive dispensing machine, epoxy resin, thermal-interface materials, grease, UV adhesive and more.
● Global service network: cooperating distributors across Asia-Pacific, Latin America and CIS countries provide on-site commissioning, operator training and spare-parts support.
● Flexible customisation: travel range, conveyor layout, valve quantity and glue-supply configuration can be adjusted according to UPH target, product drawings and factory-layout constraints.
For global manufacturers, this Fortune-500-validated turn-key in-line dispensing solution from Second Intelligent processes RTV silicone, two-component conductive adhesive, epoxy potting compounds and various other fluids. Whether you need standard standalone machines or custom mass-production lines for PCBA and automotive-electronics applications, we can conduct process feasibility assessment and deliver complete equipment proposals.
