Single Component Auger Valve for Volumetric Metering 0.35–7 mL/min Pulse-Free

Product Overview

This single component auger valve provides steady, volumetric metering of low to medium viscosity fluids at flows from 0.35 to 7 mL per minute. The design delivers a continuous, pulse-free output ideal for fine bead and coating applications. It fits compact production cells and integrates with common dispensers and robots for repeatable, low-drift delivery.

Problem

Many dispensing operations see uneven bead shape or intermittent flow when using pump types that create pulses or depend on pressure swings. This leads to inconsistent bonds, extra trimming or rework.

Cause 

Pulsed outputs, air entrainment, or poorly matched feed systems cause the dispensing tip to vary in flow. For low-rate dosing, pressure-based systems can be hard to tune and keep stable over a long run.

Solution

The auger valve uses a rotating screw to move material continuously and at a controlled volumetric rate, eliminating pressure pulses at the nozzle. It reduces bead variation and simplifies setup by delivering a linear relation between motor speed and flow. The unit is easy to clean and can be supplied with wear-resistant wetted parts for filled materials.

Application

• Small bead dispensing for electronics assembly and connector sealing.
• Continuous coating for small parts where even film thickness matters.
• Metering of grease, lubricants, or low solids adhesives in test rigs.
• Pilot lines and R&D where a pulse-free output improves result consistency.

How It Works 

The auger screw rotates to deliver a continuous volume of fluid through the outlet. Motor speed sets the delivered volume per minute; a stable speed produces a steady flow without the pressure pulses found in piston or diaphragm pumps. Feed method (pressure pot or gravity) supplies the reservoir while the screw provides positive displacement to the nozzle.

How To Choose

Pick target flow (mL/min) and select the model that covers peak requirement with margin.
Provide fluid viscosity at operating temperature to confirm screw clearances and wetted materials.
Decide feed method (gravity pot for convenience, pressure pot for higher head) and ensure reservoir supply is steady.
Choose nozzle style that fits part geometry and required bead shape.
If fluid contains solids, request coated screw or PTFE option.
Plan a bench run to set motor speed and verify metering accuracy before full deployment.

Company Trust and Support

Mingseal Technology supplies dispensing systems and supports integration with test runs, driver recommendations, and spare parts. We provide drawing files, bench testing, and material compatibility checks on request. Sample testing and short trial reports are available to confirm fit for your process.

FAQ 

Q1: What fluids can this auger valve handle?
A1: It handles a wide range of low to medium viscosity fluids and many mildly filled adhesives. Send your fluid spec for confirmation.

Q2: How do I set flow rate?
A2: Flow rate is set by motor speed. We supply recommended starting speeds and a simple calibration routine to map speed to mL/min for your fluid.

Q3: How do I clean the unit?
A3: The head disconnects for access to the screw and nozzle; follow the cleaning procedure in the manual. For filled fluids, use the coated wetted parts option to reduce wear.

Q4: Do you offer sample testing with my adhesive?
A4: Yes. Send fluid data (viscosity at use temperature and SDS) and target flow; we will run a bench test and return results and settings.

About Mingseal