Two Component Glue/Ahesive/Resin Mixing and Dispensing machine

The KPD 2K Two-Component Glue Mixing and Dispensing Machine is an advanced, industrial-grade solution designed for high-precision metering, homogeneous mixing, and controlled dispensing of two-part resin systems (Epoxy, Polyurethane, Silicone, and Acrylic).

Engineered for automated batch production, this system eliminates manual mixing errors, prevents air bubble encapsulation, and ensures consistent ratio control (1:1 to 10:1). Featuring heavy-duty material conditioning tanks, high-precision metering pumps, and dynamic/static mixing technologies, KPD delivers exceptional dispensing accuracy and reliable output for critical potting, sealing, encapsulating, and bonding applications.

Key Features

• High-Precision Metering & Ratio Control: Powered by precision gear pumps or progressive cavity pumps, maintaining a continuous volumetric mixing accuracy within 2%.

• Homogeneous & Bubble-Free Mixing: Offers versatile mixing configurations—including dynamic motor-driven mixing heads for high-viscosity resins and disposable static mixers for low-maintenance operation.

• Integrated Material Conditioning: Stainless steel tanks feature optional vacuum degassing (to eliminate micro-bubbles), electric agitation (to prevent filler sedimentation), and digital thermal heating.

• Smart PLC & Touchscreen Control: Intuitive user interface supporting multi-recipe memory, customizable dispensing profiles, low-level material alerts, and anti-curing auto-purge timers.

• Flexible Motion Integration: Easily configured as a standalone tabletop unit or integrated with 3-Axis / 4-Axis XYZ CNC Cartesian robots for automated 3D path dispensing.

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: ±2% 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.

Specification

Applications

• Electronics & Printed Circuit Boards: Conformal coating, PCB potting, power supply encapsulation, and transformer insulation.

• Automotive Electronics: Sealing and encapsulating ADAS radar sensors, TPMS tire pressure modules, battery pack thermal interface materials (TIM), and ignition coils.

• LED & Lighting Industry: Outdoor LED module potting, driver sealing, and waterproof strip encapsulation.

• Renewable Energy & Industrial Manufacturing: Smart water meter sealing, filter end-cap bonding, and structural honeycomb panel spray/gluing.

glue dispensing machine application

Frequently Asked Questions (FAQ)

Q1: What is the difference between Static and Dynamic mixing heads?

A: Static mixing relies on stationary helical elements inside a disposable tube to fold materials together. It is low-cost and ideal for resins with similar viscosities and close ratios ($1:1$ or $2:1$). Dynamic mixing utilizes a high-speed motor to drive a rotary element in the mixing chamber, providing superior shear force for extreme mixing ratios (e.g., $10:1$) or vastly different resin viscosities.

Q2: How does the machine prevent resin from curing inside the mixing head?

A: The system includes a programmable Auto-Purge / Anti-Curing Function. If the machine remains idle past a set duration, it automatically dispenses or flushes out a small volume of mixed material (or initiates a solvent/air flush cycle) to keep the nozzle clear.

Q3: How do I handle resins that contain heavy fillers or settle over time?

A: We outfit the material supply tanks with motorized speed-adjustable agitators and recirculating pump systems. This prevents settling and keeps filler particles uniformly distributed.

Q4: Can the machine handle high-viscosity resins or cold operating environments?

A: Yes. Both the tanks and delivery hoses can be equipped with temperature-controlled heating jackets to lower fluid viscosity, ensuring smooth flow and consistent volumetric metering even in colder shop environments.

Q5: Is custom configuration available for automated production lines?

A: Absolutely. KPD provides custom tank sizes, specialized robotic motion platforms, line-integration signals (I/O communication), and multi-axis CNC systems tailored to your factory layout and cycle time requirements.