Knowledge centre · Selection
Selection is not a matter of preference — it follows from the product. Work in this order and the machine configuration falls out of the data.
Three product characteristics decide almost everything: viscosity, particle content and temperature behaviour. Viscosity tells you whether a gear pump (thin liquids) or a rotor pump (medium to high viscosity) is appropriate; particle content determines whether a piston-type machine is usable at all.
| Viscosity band | Typical products | Pump type |
|---|---|---|
| ≈50–1,000 cSt | Milk, beverages, edible oil | Gear pump |
| 1,000–50,000 cSt | Creams, gels, sauces without solids | Rotor pump (LX-9 / LX-18) |
| 50,000–300,000 cSt | Bean paste, jams, fillings, with particles | Rotor pump (LX-18 / LX-36 / LX-60) |
Fill volume per container selects the rotor pump size. Choose a pump whose working band sits inside your fill range — not at its extreme — so the servo has resolution to correct against weight feedback.
Containers per hour sets the number of heads and the automation level. Container and cap type set the filling station geometry. Only after these are fixed should price be compared — two quotations for “a filling machine” are not comparable until the configuration is.
Grounton Pak works through selection in exactly this order — product, pump size, filling valve, then output and automation — so the configuration falls out of the data before price is ever compared.
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–±2 g on particle-containing or high-viscosity products, CIP-capable hygienic construction and custom filling lines.
View products · Selection guide · Contact us
Email: [email protected] · WhatsApp: +86 133 9317 7755