Start with how the product flows
Viscosity is the single biggest factor in choosing a filler. A water-thin essential oil, a syrup, a lotion and a peanut butter all need different dosing methods, even when the bottles look similar.
Thin liquids in small bottles
For perfume, eye drops, essential oils and similar products from 1 ml to about 150 ml, small multi-nozzle monoblocks combine filling with plug insertion and capping. Examples are the Y2 two-nozzle small bottle filling & capping machine for 2–150 ml and the YX2 essential oil dropper bottle filling & capping machine for dropper bottles. Very small doses in cartridges and syringes use a dedicated machine such as the KS4 cartridge & prefilled syringe filling and crimping machine.
Medium-viscosity liquids
Lotions, shampoos and juices are usually filled by piston or pump fillers. The Liquid & lotion filling and capping machine (50–1000 ml) covers 50–1000 ml bottles. For high output on small oral-liquid bottles, a rotary tracking filler such as the Rotary tracking filling & capping machine for oral liquid fills while the bottles keep moving.
Thick pastes and products with particles
Honey, ketchup, peanut butter and thick cream need positive-displacement dosing: piston fillers or rotor lobe pumps. Check the nozzle diameter if the product contains seeds or chunks. See the Piston & rotor-pump filler for honey, sauce and cream and the eight-nozzle J8B peanut butter & sauce filling and capping machine.
Products that must be filled hot
Gel air fresheners, solid perfume and wax are liquid only when warm and set in the container. They need a heated hopper and heated product lines so the product does not solidify inside the machine, as on the J4B heated filling machine for gel, wax and solid perfume.
Large containers
Paint, chemicals and edible oil in 5–30 L pails need heavier frames and larger nozzles, often with tracking so the nozzle follows the pail. See the DT30 pail & bucket filling and capping machine (5–30 L).
Information that makes a quotation accurate
- A sample or a short video of the product being poured
- Fill volume or weight and the accuracy you need
- Bottle drawings or photos, with cap type
- Whether the product foams, is corrosive or is flammable
- Bottles per minute
Questions and answers
Which filler is best for honey?
Honey is viscous, so a piston or rotor lobe pump filler is normally used. Warm honey flows faster, which can increase output.
Can one machine fill several viscosities?
Often yes within a range, by changing the pump or nozzles. Send samples of each product so the dosing method can be checked.
