Automated 2 Component Sealant & Adhesive Metering and Dispensing Equipment

The Automated 2 Component Sealant & Adhesive Metering and Dispensing Equipment is designed for accurate metering, mixing, and dispensing of two-part sealants and industrial adhesives. The system independently meters Components A and B according to a preset mixing ratio and combines them through a mixing unit before dispensing.

Suitable for two-component silicone, epoxy resin, polyurethane (PU), and other compatible 2K materials, this automated dispensing system supports consistent material delivery, repeatable application, and improved production efficiency. Configurable material tanks, metering pumps, mixing valves, dispensing valves, and automated motion systems allow the equipment to be adapted to different industrial sealing, bonding, and potting applications.

Key Features

• Accurate Two-Component Metering: Independently controls A and B material delivery according to the configured ratio.
• Automatic Mixing and Dispensing: Integrates material metering, mixing, and dispensing into one system.
• Wide Material Compatibility: Suitable for compatible two-part silicone, epoxy, polyurethane, sealants, and industrial adhesives.
• Consistent Dispensing Performance: Helps improve application repeatability and reduce material waste.
• Flexible System Configuration: Options include precision pumps, material tanks, static or dynamic mixers, and dispensing valves.
• Automated Motion Control: Optional XYZ motion platform or robotic integration for programmed dispensing paths.
• Process Customization: Configurable mixing ratio, output volume, dispensing speed, and operating sequence according to material and application requirements.
• Industrial Production Integration: Can be adapted to assembly lines, workstations, and customized manufacturing systems.

Working Principle of Automated 2 Component Sealant & Adhesive Metering and Dispensing Equipment

This automated 2 component sealant & adhesive metering and dispensing equipment is a positive displacement 2K meter mix dispense system. It separately meters Part A (base resin / sealant) and Part B (curing agent / hardener) and mixes them inline right before dispensing.

1. Material Feeding & Storage

Part A and Part B two-component materials are stored in independent material tanks. For high-viscosity sealants, tanks can be equipped with stirring and heating functions. Material is fed into the servo metering pumps by pressure feeding or vacuum feeding. Low-level sensors monitor material volume and trigger an alarm when material is insufficient, preventing air from entering the metering system.

2. Precision Metering (Core Step)

Two independent servo positive displacement pumps drive Part A and Part B respectively. According to the preset mixing ratio, flow rate and dispensing volume in the PLC touchscreen, the servo system controls the rotation speed of each pump to deliver accurate volumes of A and B materials.

• Mixing ratio adjustable: 1:1 ~ 10:1
• Metering accuracy: ±1% The ratio is controlled by the pump displacement and servo speed, no manual adjustment of hardware.

3. Inline Mixing

The metered Part A and Part B flow simultaneously to the mixing head.

• Static mixing (standard): Materials flow through a disposable static mixer. The spiral baffles inside continuously split and recombine the two fluids to achieve homogeneous mixing. Best for epoxy, PU, medium-viscosity silicone sealant.
• Dynamic mixing (optional): A motor-driven rotating impeller inside the mixing head stirs materials forcibly. Suitable for high viscosity, poor flowability or hard-to-blend 2K sealants and adhesives.

4. Dispensing & Suck-back Anti-drip

After mixing, the homogeneous 2-component sealant/adhesive flows out from the dispensing nozzle onto the workpiece. Once the dispensing cycle finishes, the suck-back valve instantly pulls a small amount of material back. This eliminates dripping, stringing or glue tail, ensuring clean bead or shot finish.

5. PLC Closed-loop Control

The whole process is managed by PLC + touch screen. All parameters including ratio, flow rate, dispensing time, shot volume can be saved as product recipes. Users can quickly switch programs for different sealants or workpieces. Production data (dispensing volume, batch records) can be logged for traceability.

Core logic summary: Separate metering → Inline mixing → On-demand dispensing Materials are only mixed right before dispensing, avoiding waste of pre-mixed fast-curing 2K adhesive/sealant.

Technical Specifications

Applications