When you're choosing a liquid paste filling machine, the first fork in the road is usually the same: do the bottles stay in one size band, or do you need to pivot between very small and large fills? One machine answers with two heads and a fixed range. The other answers with a single head and a much wider range. The choice will shape your setup routine and how flexible you can be when a new container shows up.
Quick verdict
Choose the double-head pneumatic machine when your containers are consistently in a narrow size range and you want a repeatable fill process. Choose the single-head automatic machine when you need to move between small and large fills and prefer a machine designed for variety. If you already know your bottle size, the double-head saves you from recalibrating between runs. If you don't, the single-head's extra range prevents you from buying a second machine. There isn't a universal winner here; the right pick depends on whether your day is full of the same bottle or a rotating cast of sizes.
Comparison at a glance
| Feature | Double-Head Pneumatic | Single-Head Automatic |
|---|---|---|
| Listed price | USD 593.66 | USD 388.46 |
| Price bar | ||
| Filling range | 50-500ml | 10g-10kg |
| Fill control | Pneumatic piston | Weighing/timing |
| Nozzles | Double head | Single head |
Where each machine wins
Go with the double-head pneumatic when your container size is predictable and you need a hopper and an 800W air pump. Go with the single-head automatic when you change container sizes often and prefer an LCD display; the adjustable filling height makes it easier to move between short and tall bottles.
Product notes
Double Head Liquid Paste Filling Machine Horizontal Pneumatic 50-500ml 800W
This machine is built around the three-way cylinder principle: a cylinder drives a piston and a rotary valve to extract and eject high-viscosity materials, while a magnetic ring switch controls the stroke adjustment of the cylinder's fill volume. That makes it a good fit for thick pastes that need to be pulled and pushed out of the nozzle. Its 50-500ml single-fill range is best for one consistent bottle format. It runs on 110V at 60Hz, and the specifications include an 800W air pump, 0.6MPa working pressure, about 1-30 bottles/min, and ≦±1% filling accuracy. The package includes the machine, a 50*50*50cm hopper, a sealing ring, a wrench, and a manual.
Choose it when you don't need to change fill volumes between batches and you want a two-head pneumatic unit with a hopper. The same range keeps it simple: it's optimized for 50-500ml fills, so if your mix is wider, the single-head model's broader range is worth close attention.
Single Head Automatic Liquid Paste Filling Machine Honey Bottle Filler 10g-10kg
This is the more flexible of the two. It uses weighing or timing filling rather than a fixed piston stroke, so a single machine can cover everything from 10g to 10kg. The LCD display makes settings easy to read, and the adjustable filling height runs from 0-30cm, which suits bottles shorter than 30cm with a mouth diameter over 20mm. Assembly is required before use, the unit weighs 11kg, and the price is USD 388.46.
Choose it for varied container sizes and fill weights. The trade-off is the setup step: assembly is required, and it fills one bottle at a time. If most of your runs are one narrow bottle size, the double-head's more specialized setup may be more useful.
Final choice by use case
The decision isn't about which machine is objectively stronger; it's about how much variety your shop handles. A fixed bottle-size line with thick paste: the double-head pneumatic lets you set a fill and run. A changing lineup of containers from tiny to large: the single-head automatic gives you room to adjust without switching machines. Choose the one that matches the bottles you actually put in front of it.
