Knowledge centre
Articles written by our engineering team — pump selection, accuracy, viscosity limits, troubleshooting and upgrade paths. Updated continuously as new application data comes in.
Articles
How to select a metering-grade rotor pump for filling
A structured method for matching pump size, head type and filling valve to product viscosity, particles, fill volume and output.
AccuracyFilling accuracy explained: ±0.5% for pure liquids, ±1–2 g for viscous products
What filling accuracy actually measures, why piston fillers drift, and which variables decide repeatability in production.
ApplicationFilling high-viscosity products with particles
Why sauces, jams and fillings with solids break piston fillers — and how a rotor pump handles them at 300,000 cSt.
UpgradeUpgrading a filling line from piston to servo rotor pump
What changes on the line, what stays, expected accuracy and material savings, and how to plan the changeover.
TroubleshootingTroubleshooting cream and paste filling problems
Common symptoms — dripping, stringing, weight drift, air inclusions — mapped to likely causes and practical fixes.
WhitepaperMetering-grade rotor pump dosing technology whitepaper
The full technical reference: metering principle, accuracy control, CIP design, acceptance testing and reference data.
Latest technical articles
Acceleration and deceleration control in filling: preventing splash, foam and overfill
Ramp-up and ramp-down speed profiles during filling prevent splash, foam and overfill. How acceleration control works in servo filling…
ValidationValidation protocols for pharmaceutical filling: IQ, OQ and PQ explained
Pharmaceutical filling machines must pass installation qualification, operational qualification and performance qualification before they…
OperationFilling machine safety: what to check before you operate and what guards must be in place
Filling machine safety covers electrical protection, mechanical guards, emergency stops, interlocks and operator training. A pre-operation…
HygieneCIP system design for filling lines: flow paths, chemical dosing and validation
Clean-in-place system design for filling lines — how flow paths are configured, chemical concentrations controlled, and CIP effectiveness…
TechnologyServo-driven filling control: how speed, position and torque decide dosing precision
Servo drives control pump speed, angular position and torque independently — the three variables that determine filling accuracy. How each…
SelectionPump head selection: lobe, wing and progressive cavity geometries compared
Rotor pump heads come in several lobe geometries — three-lobe, twin-lobe, wing and progressive. Each suits different product types,…
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