When you're setting up a filling, dosing, or weighing workflow, the hardest part is often deciding whether you need a storage tank, a metering pump, or a complete filling machine. Each piece solves a different part of the process. This guide compares four distinct setups: a Grundfos chemical dosing tank, an electromagnetic diaphragm metering pump, an automatic quantitative liquid dosing machine, and a double-head pneumatic paste filler, so you can match the right tool to the liquids you handle and the output you need.
Quick take
If your goal is to build a dosing station from the reservoir up, the Grundfos chemical dosing tank gives you a solid foundation. For compact chemical metering, the electromagnetic diaphragm metering pump is the lightest and least expensive option here. For automated filling of bottles, cans, or bags with liquids, the automatic quantitative dosing machine covers a wide fill range. And for paste and high-viscosity work, the double-head pneumatic filler is the more powerful choice.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Grundfos Chemical Dosing Tank | USD 500.00 | |
| Electromagnetic Diaphragm Metering Pump | USD 278.95 | |
| Automatic Quantitative Liquid Dosing Machine | USD 383.99 | |
| Double Head Liquid Paste Filling Machine | USD 593.66 |
Decision Matrix
| Your workflow | Best match from these options |
|---|---|
| You need a dedicated chemical reservoir to feed dosing pumps | Grundfos Chemical Dosing Tank |
| You want a compact pump for metered chemical dosing | Electromagnetic Diaphragm Metering Pump |
| You're filling bottles, cans, or bags with liquids | Automatic Quantitative Liquid Dosing Machine |
| You need a production-oriented filler for paste or high-viscosity products | Double Head Liquid Paste Filling Machine |
Product Notes
Grundfos Chemical Dosing Tank
Priced at USD 500.00, this translucent white tank is built by Grundfos and offered in new open-box condition. The 200L capacity makes it a practical reservoir for a range of chemical dosing applications. It is designed to work with a range of Grundfos dosing pumps, and the tank family includes sizes from 40 to 1000 liters. You can fit it with a dosing pump, suction lance, or stirrer, which makes it a flexible foundation for a chemical dosing system. The main limitation is that it is just the tank; the pump, lance, and stirrer are separate pieces, so you need to budget for those additions before it can dose on its own.
Electromagnetic Diaphragm Metering Pump
At USD 278.95, this electromagnetic diaphragm metering pump is the least expensive option in this group. It also weighs about 2.5kg, so it is easy to position near an existing tank or on a bench. As a standalone pump, it can handle metered chemical dosing when paired with a reservoir and tubing. The trade-off is that it is not a complete filling or storage station on its own; you still need a tank and the right tubing to make it work. If you already have a reservoir, this is a straightforward pump choice.
Automatic Quantitative Liquid Dosing Machine
Priced at USD 383.99, this automatic quantitative liquid dosing machine covers a fill range of 5 to 3,500 mL and has a maximum flow rate of 3.2 L/min. With a 30W motor, it suits lighter-duty jobs like filling small bottles, cans, or bags with liquids. The practical appeal is the wide fill range in a single unit. The limitation is that 30W is modest, so you would not want to rely on it for heavy paste or continuous high-speed production.
Double Head Liquid Paste Filling Machine
At USD 593.66, the Double Head Liquid Paste Filling Machine is the highest-priced option here and the only one built specifically for paste and high-viscosity products. It runs on 800W air pump power with a pneumatic double-head design, has a filling speed of about 1-30 bottles per minute, and has a filling accuracy of ≦±1%. The single filling range is 50-500ml, making it a solid production-line match for sauce, cream, or paste containers. The trade-off is its footprint: roughly 55kg with a 110×45×30cm frame, and it operates on 110V/60Hz power, so it needs dedicated space and a compatible electrical supply.
Final Recommendation by Use Case
- Building a chemical dosing station: Start with the Grundfos Chemical Dosing Tank and add a metering pump like the Electromagnetic Diaphragm Metering Pump to complete the setup.
- Metering small chemical volumes: The Electromagnetic Diaphragm Metering Pump is the compact choice when you already have a reservoir and just need the pump.
- Automating liquid filling: The Automatic Quantitative Liquid Dosing Machine covers a wide fill range with a single-unit design and modest power draw.
- Handling paste and thicker liquids with speed: The Double Head Liquid Paste Filling Machine gives you a filling speed of 1-30 bottles per minute and ±1% accuracy, provided you have space for its larger frame and 110V/60Hz power.
