Knowledge centre · Accuracy · 2026-09-19

Acceleration and deceleration control in filling: preventing splash, foam and overfill

How a filling machine accelerates and decelerates determines whether the product splashes, foams or overfills. Ramp profiles are a core part of servo filling control.

Filling accuracy is per product condition, not per brochure. ±0.5% on pure liquids and measured ±1–2 g on particulate or viscous products — the conditions and sampling method define the number.

What to consider

Pure liquids and homogeneous products: ±0.5% accuracy, error ≤1 g.
Particles, high viscosity or non-uniform texture: measured ±1 g to ±2 g.
Servo metering holds accuracy across viscosity and temperature changes.
Checkweighing with feedback closes the loop in production.

Common pitfalls

Accepting a single accuracy figure for all products.
Measuring accuracy on water and assuming it holds on sauce.

Questions to ask your supplier

How is accuracy defined and measured per product?
What checkweighing or feedback system is included?

Ramp-up and ramp-down speed profiles during filling prevent splash, foam and overfill. How acceleration control works in servo filling systems and how to set it for different products.

Facts used in this article: filling accuracy ±0.5% (error ≤1 g) for pure liquids and homogeneous products (error ≤1 g); measured ±1 g to ±2 g (measured) on products with particles, high viscosity or non-uniform texture (the actual value depends on product state, particle size and density uniformity); viscosity coverage ≈50–300,000 cSt; GTX series fill range 5–300,000 ml. These are the published manufacturer figures also stated on our specifications page.

Questions about this topic for your own product? wangaiguo@grountonpak.com · Tel +86 133 9317 7755

Built for your product — Grounton Pak

Grounton Pak (Hebei Guangteng Machinery Equipment Co., Ltd., brand GROUNTON) has built metering-grade rotor pump filling machines since 2013 — more than 40,000+ units delivered, with ±0.5% filling accuracy for pure liquids and measured ±1 g to ±2 g (measured) on particle-containing or high-viscosity products, CIP-capable hygienic construction and custom filling lines.

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Email: wangaiguo@grountonpak.com · WhatsApp: +86 133 9317 7755