Eccentric Screw Metering Valve with 1:1 and 10:1 Mix Ratio Options for Precision Dispensing

Product Overview

This eccentric screw metering valve provides steady, metered output from 5 to 100 mL/min and supports common mix ratios including 1:1 and 10:1. It is built for accurate dosing of two-component adhesives and sealants in production lines and dispensing cells. Use this unit when you need consistent mixed output, easy maintenance, and reliable operation for small to medium throughput.

Problem

In production, incorrect mix ratio or unstable flow causes weak bonds, inconsistent cure and increased scrap.

Cause

Ratio error and flow fluctuation happen when pumps or metering heads slip, air enters the feed, or the mixer design does not match fluid viscosity. These faults show up as poor bead shape, incomplete cure, or frequent cleaning.

Solution

This eccentric screw valve meters components with positive displacement screws and a platen mount to keep ratio and flow stable. It offers selectable ratios (1:1, 10:1), wide viscosity handling, and a quick‑release mixing head for fast cleaning. The design reduces pulsation and keeps mixed output uniform across shifts.

Applications

• Two‑component adhesive dispensing for module bonding and assembly.
• Structural glue application on small panels and housings.
• Sealant and gasket bead feeding for small enclosures.
• Pilot production and small series where accurate ratio and low maintenance matter.

How It Works 

The unit uses two matched screws that rotate to push each component forward at set speeds. The platen holds feed ports and the screws deliver positive displacement so flow is proportional to screw speed. The outputs meet in a mixer and the mixed material exits ready for dispensing. Speed controls flow rate; gear ratio or motor sizing sets mix ratio when using direct drive pairing.

How To Choose

• Determine peak and average flow per line or head and select the model to cover peak demand with margin.
• Provide component viscosities at operating temperature and solids content; we will size screws and select clearances.
• Specify desired mix ratio (1:1, 10:1 or custom) and whether static or dynamic mixing is preferred.
• Choose feed method (pressure pot, bulk, cartridge) to match site setup.
• Decide on wetted part material based on chemistry and abrasiveness.
• Request a bench or pilot test to confirm settings before full deployment.
• Performance Note Bench trial: a 1:1 epoxy run at 60 mL/min produced uniform beads with metering accuracy within ±2% over a 6‑hour shift using pressure feed and a static mixer. No ratio drift observed when flow sensors were used for verification. Contact us for full logs and a tailored trial.

Maintenance and Cleaning

• Quick‑release mixing head and replaceable mixer elements speed changeover.
• Purge and flush sequences recommended between batches or color changes.
• Keep spare mixer elements and seals on site for fast swaps.

Company Support and Trust

Mingseal Technology provides bench testing, pilot runs and on‑site commissioning. We offer material compatibility checks, dimension drawings and test reports on request. Sample tests with your materials are available and recommended to confirm metering settings and cleaning intervals.

FAQ 

Q1: Can this pump handle filled adhesives?
A1: Yes. Screws and wetted parts can be specified for abrasive or filled materials. Provide a sample for bench testing to confirm wear and flow behavior.

Q2: How is the mix ratio set and verified?
A2: Ratio is set by screw speed and gear ratio or by pump sizing. Flow sensors or weighing verification can be added for in‑line ratio checks.

Q3: What is the recommended cleaning procedure?
A3: Use purge cycles between batches and quick‑release disassembly for manual cleaning. For frequent changes, use the dynamic mixer or purge module option.

Q4: Do you support custom mix ratios?
A4: Yes. Custom ratios can be supplied; please specify required ratio and material data when requesting a quote.

Q5: Do you provide trial runs with our adhesive?
A5: Yes. Send material samples and process details; we will run bench or pilot tests and return a report with recommended settings.