What Is a Quantitative Liquid Filling Machine?
FZH-10 Piston Liquid Filling Machine is a compact, electric-driven quantitative liquid filling machine designed for accurate and repeatable filling of low- to medium-viscosity liquids.
It adopts a mature piston filling structure with adjustable filling volume and speed, suitable for laboratories, hospitals, pharmaceutical preparation rooms, agrochemical factories, and small-batch production environments.
The machine supports continuous dosing, stable operation, and easy cleaning, making it an ideal solution for ampoules, vials, eye drops, oral liquids, pesticide bottles, cosmetic liquids, and chemical test liquids.
FZH Quantitative Filling Machine
Working Principle & Operating Instructions
The FZH Quantitative Filling Machine is a piston-type liquid filling machine designed for accurate, repeatable dosing in pharmaceutical, laboratory, and chemical applications. Below are the standard operating principles and step-by-step operation guidelines to ensure safe use, precise filling, and stable performance.
1. Pre-Operation Preparation
Before operating the machine, ensure the equipment is properly grounded to guarantee electrical safety.
Select the standard syringe filling system according to the required filling volume:
- 0.2–1 ml → 1 ml syringe
- 1–5 ml → 5 ml syringe
- 5–10 ml → 10 ml syringe
- 20 ml model → 20 ml glass enema syringe
- 100 ml model → 100 ml glass enema syringe
(or dedicated stainless steel filling system supplied by our factory)
- 500 ml model → Dedicated stainless steel filling system produced by our factory
Correct syringe selection is critical for high filling accuracy and volume consistency.
2. Syringe Installation (Lower Assembly)
Remove the inner plunger (core) of the syringe. Slide the threaded sleeve onto the syringe core.
Important note:
For the 10 ml model, syringe outer diameters may vary. Select the appropriate gasket according to the actual outer diameter.
Secure the syringe core to the lower base using the threaded sleeve.
Always ensure the syringe components are clean during installation and removal to meet hygiene standards.
3.Upper Clamp Installation
Place the upper clamp seat over the outlet end of the syringe barrel (outer sleeve). Tighten the two nuts evenly.
When using a 5 ml syringe, install the sleeve together and tighten carefully.
Do not overtighten, as excessive force may cause the syringe barrel to crack.
Model differences:
The 10 ml model is equipped with an adjustment sleeve
The 20 ml, 100 ml, and 500 ml models do not require an adjustment sleeve
4. Injection System Assembly
Reinsert the inner syringe core into the outer sleeve, forming a complete piston injection system.
This completes the basic syringe assembly for the liquid filling machine.
5. Valve Installation
Install the filling valve with the arrow pointing upward and the arrow marking facing outward.
6. Mounting the Injection System
For the fully assembled injection system:
- Align the upper and lower circular holes of the injection assembly with the upper and lower fixing rods
- Slide the assembly onto the rotating bearing
- Ensure the outer end face of the injection system is flush with the bearing surface
During installation of the lower section:
- Prevent contact between the threaded sleeve and the crank mechanism
- Proper installation should maintain approximately 1 mm clearance between the sleeve and crank
- Incorrect clearance may cause abnormal noise or mechanical wear during operation
Once correctly positioned:
- Tighten both upper and lower set screws
- Connect the syringe outlet to the valve nozzle using a short rubber hose
- Connect the inlet pipe to the liquid inlet port and the outlet pipe to the discharge port
- Secure both pipes neatly into the side brackets on the machine housing to prevent tangling
7. Manual Operation Check
Manually rotate the crank handle:
- The crank should rotate smoothly and freely
- Any resistance indicates incorrect installation
If abnormal resistance occurs, check whether the injection system is properly seated and securely fixed on the rotating bearing.
Applicable Products
Oral liquid medicines
Eye drops
Ampoule and vial liquids
Pesticides and agrochemical solutions
Shampoo and cosmetic liquids
Laboratory reagents
product comparison
| Model | FZH-10 | FZH-20 | FZH-30 | FZH-100 | FZH-500 |
| Voltage (V) | 220 | 220 | 220 | 220 | 220 |
| Power (W) | 20 | 30 | 30 | 60 | 120 |
| Filling Range (ml) | 0.2–10 | 5-20 | 5–30 | 10–100 | 50-100 |
| Filling Speed | Continuously adjustable (max. 40 cycles/min) | Continuously adjustable (max. 30 cycles/min) | Continuously adjustable (max. 35 cycles/min) | Continuously adjustable (max. 30 cycles/min) | Continuously adjustable (max. 20 cycles/min) |
| Accuracy | ±0.5% | ±0.5% | ±0.5% | ±1% | ±1% |
| Weight (kg) | 6 | 7 | 7 |
|
18 |
| Dimensions (mm) | 200×145×350 | 200×145×355 | 200×230×410 | 180×305×480 | 235×310×580 |
Test video:
Prior to shipping each batch of equipment, we will concurrently record installation functionality verification videos adhering to the standards of the demonstration video on the left. By simulating typical operating conditions (including stripping operation and the entire material separation process), we will conduct actual measurements to validate core performance metrics such as positioning accuracy, operational stability, and material integrity protection. This ensures the delivered equipment meets quality compliance and functional effectiveness requirements.
Packing And Shipping
Company
Changsha Yiguang Pharmaceutical Machinery Co., Ltd. is a professional manufacturer specializing in the research, development, production, and sales of pharmaceutical and packaging equipment.
Established in 2014, the company focuses on providing reliable and efficient solutions for the pharmaceutical industry, with a comprehensive product portfolio including ampoule filling and sealing machines, vial filling and capping machines, liquid bottle filling machines, capsule machines, tablet machines, packaging machines, and other customized pharmaceutical equipment.
With nearly 10 years of continuous development, Yiguang has successfully served over 1,000 laboratories and production facilities, including pharmaceutical manufacturers, universities, and government institutions, earning wide recognition for product quality and technical expertise.
FAQ
Q: 1.What about your machine quality?
A: Our factory has more than 10 years experience in mechanical processing,exported into many countries and areas; already got customer's good reputation.
Q: 2. What about your machine price?
A: Anytime we will make quality as factory life, no matter price is good or not for us. Quality is first, on the top quality basis, Sure you will get reasonable and satisfied price!
Q: 3. How can you ensure the machine's quality after we put the order?
A: Before the delivery, we will send you machine's pictures and videos, or you can come to us to have the quality checking by yourself, or by the third party inspection organization contacted by your side.
Q: 4.What about your installation service and sales service for machine?
A: 1.Guarantee is one year, we will supply spare parts or send engineers to your side if you need, we will give you service anytime, 24 hours, 7days.
2.We already prepare technical manual and operation video to show our customers, then it will be easy to install and use the machine.
3.It is free to train your worker in our factory or in your side by video.
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