In electronic manufacturing, dispensing production is divided into two working conditions: small-batch sample trial production and mass volume production. 300ml packaged silicone adhesive is suitable for R&D and proofing, while large-scale continuous production requires continuous glue supply from 5-gallon barrels of high-viscosity adhesive. The Second Intelligent SEC-DH400L online visual Automated dispensing system is equipped with a 300cc cartridge glue supply unit as standard. When customers later increase production capacity, a 5-gallon ram pump can be externally installed as an independent glue supply unit. The two glue supply systems are completely separate. When changing glue specifications, operators manually disassemble and assemble pipelines and air source connectors, perform pressure relief and docking to switch production.
(1) Pain Points in the Manufacturing Industry: Co-Line Production Demand for Glues of Different Sizes
Factories worldwide in electronics, new energy and automotive components generally have two differentiated dispensing production demands, and the two types of glue packaging cannot share a single set of glue supply equipment:
● In the new product R&D and small-batch trial production stage, enterprises generally use 300ml packaged RTV silicone adhesive with low single glue consumption and frequent product model switching. The cartridge-type glue supply is easy to disassemble and assemble, adapting to rapid proofing.
● When products are finalized and enter stable mass production, glue consumption increases significantly. Frequent replacement of 300cc glue cartridges will continuously occupy labor and interrupt production line takt. At this time, 20L standard 5-gallon barreled adhesive is required to achieve long-term uninterrupted glue supply via a ram pump.
Traditional dispensing equipment is only equipped with a single glue supply structure when leaving the factory. To be compatible with large-capacity barreled adhesive in the later stage, the entire fluid system needs to be replaced, resulting in high modification costs and long downtime debugging cycles. The Second Intelligent SEC-DH400L Inline visual dispensing machine adopts a modular fluid design with reserved universal expansion interfaces on the machine body. Customers can separately purchase a complete set of external 5-gallon ram pump components later according to production pace. The two sets of glue supply pipelines and air sources are completely independent, eliminating pressure cross-over in shared pipelines. Only manual disassembly and assembly of connectors are required for switching, with no need to modify the equipment’s motion platform or core visual positioning structure.
(2) Introduction to SEC-DH400L Standard Glue Supply and External Expansion Ram Pump System
1) Factory Standard: 300cc Cartridge Basic Glue Supply Unit
The equipment is delivered with a complete small-sized glue supply module, suitable for 300–330ml packaged silicone adhesive and threaded syringe fluids, mainly used for R&D sampling and multi-model small-batch order production:
● Special cartridge locking structure prevents glue cartridge deformation, bursting and material leakage during high-pressure glue output;
● Short-pipeline direct-pressure glue output with low fluid pressure loss. Combined with CCD visual positioning and laser height measurement, it achieves precision dispensing with a stable repeat positioning accuracy of ±0.015mm;
● Simple single-cartridge replacement operation, which can be completed by one person within 3 minutes, adapting to R&D scenarios with high-frequency glue replacement.
2) Later External Expansion: 5-Gallon Barreled Ram Pump Independent Glue Supply Unit
When customers’ mass production demand increases, a complete set of 5-gallon ram pump can be purchased separately as an external backup glue supply unit. The operation logic of the entire system is as follows:
● The two glue supply systems are independent of each other, each equipped with high-pressure oil pipes, independent pressure regulating valves and pressure relief protection valves, with no shared confluence pipelines, completely avoiding pressure cross-over and glue mixing risks;
● When switching between different glue specifications, a complete manual operation process is required: turn off the air source of the current glue supply unit, fully relieve pressure, disconnect the fluid connector and air source connector at the front end of the glue valve, connect the pipeline of the other set of ram pump, readjust pressure and evacuate air from the pipeline before resuming production;
● Suitable for high-viscosity fluids with a viscosity range of 50,000–1,000,000 CPS, including one-component RTV sealant, thermal gel and polyurethane potting adhesive, meeting long-term continuous mass production conditions.
(3) Core Performance and Working Condition Comparison: Second Intelligent 5-Gallon Plunger Ram Pump VS Graco C20
1. Output Pressure and Flow Rate for Long-Line Mass Production
● Graco C20 has a compression ratio of 20:1, a maximum fluid output pressure of 17.2MPa, and a single reciprocating glue output of approximately 100cc. For long production line conveying pipelines and multi-station synchronous dispensing, pipeline pressure loss is obvious, easily leading to uneven end glue output and short-term glue interruption. It is more suitable for short-pipeline, single-station small-scale precision dispensing scenarios.
● Second Intelligent 5-gallon ram pump has a compression ratio of 43:1, a maximum fluid output pressure of 28MPa, and a single reciprocating glue output of 170cc, providing higher glue supply efficiency at the same operating speed. For long-line conveying and parallel glue supply of multiple equipment, it maintains stable fluid pressure throughout the process, adapting to large-scale continuous gluing processes in new energy and automotive electronics.
2. Body Structure, Footprint and Barreled Material Pressing Performance
● Graco C20 adopts a single-column pneumatic motor structure with a total height of over 2.2 meters, which is restricted for placement in overseas factories with limited plant floor height. The single-column pressing bearing capacity is limited; it is prone to slipping when squeezing hardened high-viscosity glue at the bottom of the barrel, and air is easily sucked into the barrel to generate bubbles.
● Second Intelligent ram pump adopts a dual-column cylinder support structure with a total height of only 1535mm, compatible with the floor height of almost all standard factories worldwide. The dual-column structure features stronger overall rigidity and sufficient pressing thrust, which can fully squeeze hardened glue at the bottom of the barrel with a lower residual glue ratio inside the barrel. The equipment is standard-equipped with a pressure plate end air-blowing barrel release mechanism, which automatically discharges residual glue in air ducts after barrel replacement, avoiding pipeline dry glue blockage during long-term continuous production.
3. Pump Body Material, Sealing and Compatibility with Various Industrial Glues
● The basic model of Graco C20 has a carbon steel pump body. For abrasive glues containing metal and ceramic fillers, a wear-resistant coating version requires additional paid purchase. The standard seal is made of nitrile rubber; when in contact with ketone and ester corrosive glues, special customized sealing parts are required, with a long overseas procurement and delivery cycle.
● Second Intelligent ram pump is standard-equipped with a tungsten steel cut-off valve structure. Ceramic nested wear-resistant components can be directly selected for plungers and cylinder bodies, with special optimization for high-filling abrasive glues such as thermal grease and conductive silver paste. The pressure plate seal is made of fluororubber, featuring stronger solvent resistance and corrosion resistance, compatible with most one-component industrial sealants without additional customized parts.
4. Air Source Adaptation, Operating Noise and Energy Consumption Performance
● Graco C20 supports a maximum inlet pressure of 0.9MPa with a wide pressure regulation range. However, the standard air compressor air supply pressure in most factories worldwide is only 0.2–0.7MPa, so the equipment performance cannot be fully utilized. There is slight pressure fluctuation during motor operation, resulting in average stability in small-flow precision dispensing conditions.
● Second Intelligent ram pump adapts to the general factory air source of 0.2~0.7MPa without additional pressurization equipment. It adopts a self-developed high-speed pneumatic reversing structure with a reversing time of less than 100ms, and is equipped with a progressive exhaust anti-icing design. It features small pressure fluctuations during long-term high-load continuous operation, the overall operating noise is controlled within 75dB, with lower air consumption, reducing air compressor energy consumption in long-term production.
(4) Applicable Production Scenarios
1)3C Electronic Component Production Lines: 300cc packaged silicone adhesive is used for proofing in the R&D stage, and 5-gallon barreled glue supply is manually switched after capacity ramping. A single equipment covers both trial production and mass production, eliminating the need to purchase two separate dispensing machines.
2)New Energy Energy Storage and Power Battery Production Lines: Continuous dispensing of large quantities of thermal gel and battery shell sealant, with stable glue supply from an external Second Intelligent ram pump to meet long-term uninterrupted mass production.
3)Automotive Electronics and Wiring Harness Shell Sealing Processes: Long production line pipeline layout and multi-station synchronous gluing. The 43:1 high-pressure output effectively avoids pipeline pressure drop, ensuring uniform glue output at each station.
4)Home Appliance and Industrial Control Power Supply Shell Dispensing Production Lines: Batch-based order production. 300cc cartridges are used for small-batch orders, and 5-gallon barreled glue supply is manually switched for large-batch orders, enabling flexible adjustment of production modes.
(5) Second Intelligent Global Supporting Services
With 20 years of deep cultivation in fluid control equipment and over 300 core fluid patents, Second Intelligent provides standardized 5-gallon ram pump capacity expansion supporting services to global customers:
● The complete external glue supply assembly includes a ram pump, high-pressure pipeline, pressure regulating and relief valve, and standard universal docking connectors, supported by complete English technical drawings, equipment operation and maintenance manuals;
● Provides standardized glue supply process parameters for silicone, polyurethane and thermal gel in the viscosity range of 60,000–1,000,000 CPS, supports overseas remote video debugging, and can arrange engineers to complete pipeline docking and glue debugging;
● Provides global equipment installation and standardized operational training for operators, with detailed explanations of manual pipeline switching, pressure relief and exhaust, and daily maintenance specifications, ensuring stable alternate production of large and small packaged glues.
Flexible batch production has become the mainstream demand in the global electronic manufacturing industry. Dispensing machines are factory-equipped with small-sized cartridge glue supply as standard, and 5-gallon ram pumps can be externally installed later according to order scale. Switching between two packaged glues via manual pipeline disassembly and assembly can effectively control initial equipment investment and simplify production line layout. The Second Intelligent SEC-DH400L online visual dispensing machine can be equipped with an external ram pump without large-scale modification of the main equipment body. Compared with the imported Graco C20 ram pump, Second Intelligent’s self-developed 5-gallon plunger ram pump better meets the actual needs of overseas automated production lines in terms of pressure and flow rate, wear-resistant structure, automated integration, comprehensive operation and maintenance costs, and adaptation to global plant working conditions. It is a highly adaptable external large-capacity glue supply expansion solution that covers both small-batch trial production and mass volume production.
