Dual‑Component Volumetric Auger Valve for Continuous Flow 2K Dispensing

Product Specification

Product Overview

This dual‑component auger valve meters two materials and delivers a continuous mixed output for 2K dispensing. It uses matched eccentric screws and a compact mixing head to provide steady flow, accurate ratio control and easy integration with robots or gantries. The design reduces pulsation and lets you run long production cycles with lower maintenance.

Problem

Many 2K processes fail when ratio or flow drifts, causing weak bonds, incomplete cure or increased rejects.

Cause 

Ratio drift and uneven flow commonly result from uneven pump speeds, air ingress, or poor mixing design. Pressure‑based feeding and long fluid paths make stable A+B delivery harder to achieve at production scale.

Solution 

This valve pairs two positive displacement screws with a short mixer so A and B are metered accurately and combined just before the outlet. Continuous screw drive reduces pulses and maintains steady ratio under varying line demands. Replaceable mixer elements and straightforward access make cleaning and maintenance fast.

Technical parameters

Application

• 2K adhesive bonding for modules and housings.
• Structural potting and gap filling where controlled A+B mixing is required.
• Large pad sealing and multi‑point dispensing with a single mixed output.
• Robotic workcells and continuous lines needing steady mixed output with low downtime.

How It Works

Two eccentric screws meter components A and B by positive displacement. Screw speed ratio sets the mix ratio while motor speed sets flow. The two streams meet in a short mixer immediately before the outlet to minimize pot life loss and reduce dead volume. Encoder feedback keeps screw speeds matched and maintains ratio under changing load.

How To Choose

1. Define required continuous flow (mL/min combined) and desired mix ratio; specify when requesting a quote.
2. Provide component viscosities at working temperature and any solids content to confirm screw sizing and mixer choice.
3. Select feed method (pressure pot or bulk) and confirm supply stability; use regulator for pressure feed.
4. Choose mixer type (static for short pot life, dynamic for thicker or filled materials) and nozzle outlet arrangement.
5. Add encoder feedback or flow sensors for closed‑loop ratio verification if process tolerance is tight.
6. Run a bench trial with your materials to set screw speeds and verify accuracy and nozzle life.

FAQ

Q1: Can the valve maintain a fixed mix ratio during long runs?
A1: Yes. With matched screw drives and stable feed the valve keeps ratio within ±1~3% typical; encoder feedback improves control.

Q2: How fast can the system run?
A2: Continuous flow depends on model and nozzle; typical ranges are 1~100 mL/min combined. Provide target throughput for exact sizing.

Q3: Can it handle filled or abrasive components?
A3: Yes — specify ceramic or coated wetted parts and request a bench wear test to confirm life expectancy.

Q4: How is cleaning handled between batches?
A4: The mixer is quick‑release with replaceable elements; use the purge routine and swap mixer parts for fast changeover.

Q5: Do you provide sample testing and tuning?
A5: Yes. Send A and B samples and process conditions; we run bench trials, return logs and recommend screw speeds, nozzle and mixer choices.

About Mingseal

Founded in 2008, Changzhou Mingseal Robot Technology Co., Ltd. is a technology-driven manufacturer of high-end equipment, specializing in connection, assembly, inspection systems, and key components for advanced semiconductor packaging and precision electronics. Our solutions are widely adopted by leading customers in sectors such as semiconductor packaging, consumer electronics, and automotive electronics. With a strong presence across Asia and the Americas, we deliver reliable support and innovation globally.

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