Products
4A + 1B Glue Dispensing Machine for Multi-Material Applications for PCB potting and encapsulation
KPD's 4A + 1B glue dispensing machine is designed for applications requiring four different A-side materials and one shared B-side curing agent. Equipped with five independent storage tanks, precision metering pumps, and dedicated delivery pipelines, the system automatically selects the required A-side material and combines it with the B-side component at a preset mixing ratio. The integrated control system enables flexible material selection, synchronized metering, and consistent adhesive mixing. The machine is suitable for multi-formula dispensing, electronic potting, component encapsulation, sealing, coating, and filling applications. With a customizable configuration and programmable dispensing process, KPD provides flexible glue dispensing solutions to meet different adhesive properties, product designs, and manufacturing requirements.
The 4A + 1B glue dispensing machine is designed for applications requiring four different A-side materials and one shared B-side curing agent. Equipped with five independent storage tanks, precision metering pumps, and dedicated delivery pipelines, the system automatically selects the required A material and mixes it with the B component at a preset ratio. It is suitable for multi-formula potting, coating, sealing, and filling applications, offering flexible material switching, consistent dispensing, and improved production efficiency for electronic and automotive components.
Key Features
✅4A Resin + 1B hardener Tanks Four separate tanks for different A-side materials and one shared tank for the B-side curing agent.
✅Independent Metering Pumps: Each tank is equipped with an independent metering pump and a dedicated delivery pipeline.
✅ 4A Selection Valve: Selects A1, A2, A3, or A4 according to the preset production recipe.
✅ Ratio Control & Static /Dynamic Mixing: The selected A-side material and the B-side curing agent are delivered synchronously and mixed at the preset ratio.
✅Automatic Dispensing: The mixed adhesive is automatically dispensed for potting, coating, or filling applications.
Advantages
✅Flexible Multi-Material Selection
Four independent A-side tanks allow the system to handle different compatible base materials with one shared B-side curing agent. Operators can select the required material according to the production recipe.
✅Precise Metering and Mixing
Independent metering pumps deliver the selected A-side material and B-side curing agent at a preset mixing ratio, helping maintain consistent adhesive quality and dispensing performance.
✅Reduced Material Cross-Contamination
Dedicated A-side storage tanks and delivery lines help prevent different base materials from mixing unintentionally. Appropriate purging or cleaning procedures can further support material changeover.
✅ Automated Recipe Management
The PLC control system can store dispensing parameters and material-selection settings for different products, helping simplify operation and reduce manual adjustment during production.
Working Principle
The 4A + 1B two-component glue dispensing system is designed to handle four different A-side base materials and one shared B-side curing agent. It consists of five storage tanks, five independent metering pumps, dedicated delivery pipelines, a material selection system, a static mixer, and an automatic dispensing head.
Step 1: Material Storage
Four different A-side materials (A1, A2, A3, and A4) are stored in separate tanks, while the B-side curing agent is stored in a dedicated tank. Each material is isolated to prevent cross-contamination.
Step 2: Material Selection
According to the preset production recipe, the control system selects one of the four A-side materials. Only the corresponding A-side metering pump is activated together with the B-side metering pump.
Step 3: Precision Metering and Synchronized Delivery
The selected A-side material and the B-side curing agent are delivered through their respective dedicated pipelines. The metering pumps control the output of each component to maintain the required mixing ratio and ensure consistent material supply.
Step 4: Static Mixing
The two selected components enter the static mixer through separate flow paths, where they are thoroughly mixed to achieve a uniform adhesive mixture.
Step 5: Automatic Dispensing
The mixed adhesive is delivered to the dispensing head, which follows a programmed motion path to perform automatic potting, coating, sealing, or filling according to the workpiece requirements.
Specification
|
ITEM |
Parameter |
| Mixing ratio | 1:1–10:1 adjustable |
| Working range | 600*500*100mm |
| Displacement speed | 200mm/s（speed） |
| Out-glue speed | 5-20g/s |
| Accuracy | ±2%（output volume）±2%（mixing） |
| tolerance | ≤0.2mm |
| Flow control | Digital input |
| Program memory | 99pcs |
| Motion trail | Dot , line ,curve ,circle |
| Automatic controlling system | Touch screen (to achieve program programming, modification, storage and so on |
| Out-glue control system | AB glue back suction valve, achieve AB glue independent operation |
| Programmatically | Tech programming With computer systems (Micro software Windows 7,Windows10 optional) |
| Mixing method | dynamic mixing/Static Mixing |
| Power supply | 220V/50Hz/1500W |
| Air source | 0.5-0.8Mpa( suggest 0.7Mpa) |
| Viscosity range | 50-30000cps |
| Outer dimension | CUSTOMIZED |
| A tank | 10L stainless tank |
| B tank | 10L stainless tank |
| Others | 4A 1B tank 、4A pump、1B Pump AB pipeline heating function |
Applications
✅Power electronics: current transformer, transformer, LED driver, solid relay, power supply module
✅New energy: solar junction box, energy storage module, battery pack encapsulation
✅Automotive electronics: automotive radar sensor, pressure/temperature sensor, ECU potting
✅Electronic components: PCB, buzzer, capacitor, controller module
✅Decoration & label: epoxy doming, badge sticker, crystal resin filling
Sucessful Project
our Customer product is TPMS tire pressure sensor. The material is two component epoxy resin , In fact A material is same just color different, and B material is same same.
So we desgin 4 different A tank and 1 B tank to connect with machine, while the color customer want, just swicth the valve to connect the color. Machine will automatic mix the color resin with hardener
FAQ – 4A + 1B Glue Dispensing Machine for Multi-Material Applications
1. What is a 4A + 1B glue dispensing machine?
A 4A + 1B glue dispensing machine is a multi-material dispensing system equipped with four separate A-side material tanks and one shared B-side curing agent tank. It automatically selects one of the four A-side materials and mixes it with the B component at a preset ratio for dispensing, potting, coating, or sealing applications.
2. How does the 4A + 1B glue dispensing system work?
The system stores four different A-side materials and one B-side curing agent separately. According to the selected production recipe, the control system activates the corresponding A-side supply line and the shared B-side supply line. Independent metering pumps deliver the materials at the preset ratio, and the components are mixed through a static or dynamic mixer before dispensing.
3. Can the machine switch automatically between four A-side materials?
Yes. The machine can be configured with a programmable material-selection system. Operators can select A1, A2, A3, or A4 through the control interface, and the system switches to the corresponding material supply according to the configured process. Automatic switching and recipe management depend on the selected configuration.
4. Can one B-side curing agent be shared by all four A-side materials?
Yes, provided the selected A-side materials are chemically compatible with the same B-side curing agent and can use the required mixing conditions. Before production, the material supplier or application engineer should confirm compatibility, mixing ratio, curing behavior, and cleaning requirements.
5. What adhesives can a 4A + 1B dispensing machine handle?
Depending on the pump, tank, seal, hose, and mixer configuration, the system may be designed for compatible two-component epoxy, polyurethane (PU), silicone, and other industrial adhesives. Material viscosity, filler content, pot life, chemical compatibility, and curing requirements must be evaluated before selecting the system.
6. Can the mixing ratio be adjusted?
The mixing ratio can be configured according to the adhesive formulation and metering system. The available ratio range and metering accuracy depend on the pump type, material properties, and machine design. Please provide the required A/B ratios for each material so that KPD can recommend a suitable configuration.
7. Does the machine prevent cross-contamination between different A-side materials?
The system can use dedicated A-side tanks and delivery lines to reduce cross-contamination between different materials. However, residual adhesive in shared downstream components, such as valves or mixers, may still cause contamination. The appropriate flushing, purging, or disposable-mixer strategy should be selected according to the materials and changeover requirements.
8. What applications is the 4A + 1B glue dispensing machine suitable for?
Potential applications include electronic component potting, sensor encapsulation, automotive electronics, power supply encapsulation, sealing, bonding, and protective coating. It is especially useful for production environments that require several A-side formulations with a shared B-side curing agent.
9. Can the machine be integrated into an automatic production line?
Yes. Depending on the configuration, the dispensing system can be integrated with XYZ gantry systems, robotic arms, fixtures, conveyors, turntables, or other production equipment. PLC control, recipe storage, I/O interfaces, and automated material selection can be customized to meet production requirements.
10. What information is needed to customize a 4A + 1B glue dispensing machine?
To recommend a suitable system, please provide:
- The types and technical data sheets of the four A-side materials and the shared B-side material
- The required mixing ratio for each material combination
- Material viscosity, filler content, and working temperature
- Required dispensing volume and production cycle time
- Product dimensions and dispensing path
- Automatic or manual loading requirements
- Material changeover and cleaning requirements
KPD can evaluate these requirements and propose a customized multi-material glue dispensing solution.
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