Skip to main content
Global Sealing SystemsGuangzhou Yijia Packaging Technology Co., Ltd.
+86 156 0300 0900

Solution topic

How to Choose Small-Dose Liquid Filling? Comparison of Magnetic Pump, Servo Piston, and Corrosion-Resistant Materials

For reagents, serums, fragrances, disinfectants and small-volume liquids, first confirm fill volume, corrosion, foaming, viscosity and accuracy requirements, then select magnetic pump filling, servo piston filling, contact-part materials, and downstream sealing or capping.

  • For reagents, serums, fragrances, disinfectants and small-volume liquids, first confirm fill volume, corrosion, foaming, viscosity and accuracy requirements, then select magnetic pump filling, servo piston filling, contact-part materials, and downstream sealing or capping.
  • How to Choose Small-Dose Liquid Filling

Real customer questions

The key question is not only the machine name. For small-dose liquid filling, first confirm the real product, container, packaging material, target output and downstream actions so the route can be judged correctly.

First determine the packaging route

For reagents, serums, fragrances, disinfectants and small-volume liquids, first confirm fill volume, corrosion, foaming, viscosity and accuracy requirements, then select magnetic pump filling, servo piston filling, contact-part materials, and downstream sealing or capping.

Magnetic pump filling route

Suitable for: Low-viscosity, particle-free and non-corrosive liquids in small doses. Advantages: Simple structure, fast changeover and good for small-batch multi-SKU production. Limits: Accuracy drops with high viscosity, bubbles or unstable flow. Not recommended when: Not ideal for high-viscosity liquid, particles or very high accuracy requirements. Equipment direction: Use a magnetic pump filler with anti-drip nozzle and confirm pump material.

Servo piston filling route

Suitable for: Medium-viscosity liquid, fine particles or wider filling volume range. Advantages: Servo control supports better stroke adjustment and more stable dosing. Limits: Material bubbles, sediment and cleaning method must be checked. Not recommended when: Special material and seals are needed for strong corrosive or sterile filling requirements. Equipment direction: Use a servo piston filler with anti-drip nozzle and heated hopper when needed.

Explosion-proof filling route

Suitable for: Flammable liquids such as alcohol, solvent, fragrance or cleaner. Advantages: Meets safety requirements and lowers ignition risk. Limits: Higher cost and requires explosion-zone information and MSDS. Not recommended when: Do not choose explosion-proof equipment when the liquid has no flammable risk or site requirement. Equipment direction: Use explosion-proof filling equipment after confirming zone class and material composition.

Recommended equipment route: Sample and container confirmation

Confirm bottle mouth size, material, and liquid characteristics, such as viscosity, corrosiveness, and foaming, to determine filling nozzle and pipeline material.

Recommended equipment route: filling machine

Select the filling principle based on liquid characteristics and accuracy requirements, and configure anti-drip filling nozzles.

Recommended equipment route: sealing or capping

Select the sealing method based on cap type, such as screw cap, press-on cap, or foil sealing. Induction foil sealing can be considered for small mouths.

Recommended equipment route: labeling and coding

Provides product identification and traceability. Label position and coding content need to be confirmed in advance.

Recommended equipment route: conveyor and downstream integration

Checkweighing rejects nonconforming products, and conveyors connect each process. The line must be customized according to output and space.

Route comparison

01Magnetic pump filling route
  • Low-viscosity, particle-free and non-corrosive liquids in small doses.
  • Simple structure, fast changeover and good for small-batch multi-SKU production.
  • Accuracy drops with high viscosity, bubbles or unstable flow.
  • Not ideal for high-viscosity liquid, particles or very high accuracy requirements.
  • Use a magnetic pump filler with anti-drip nozzle and confirm pump material.
02Servo piston filling route
  • Medium-viscosity liquid, fine particles or wider filling volume range.
  • Servo control supports better stroke adjustment and more stable dosing.
  • Material bubbles, sediment and cleaning method must be checked.
  • Special material and seals are needed for strong corrosive or sterile filling requirements.
  • Use a servo piston filler with anti-drip nozzle and heated hopper when needed.
03Explosion-proof filling route
  • Flammable liquids such as alcohol, solvent, fragrance or cleaner.
  • Meets safety requirements and lowers ignition risk.
  • Higher cost and requires explosion-zone information and MSDS.
  • Do not choose explosion-proof equipment when the liquid has no flammable risk or site requirement.
  • Use explosion-proof filling equipment after confirming zone class and material composition.

Core process

01Sample and container confirmation
02Filling Main Unit
03Sealing/capping
04Labeling and coding
05Inspection and identification
06Sample test and quotation output

Associated Equipment / Consumables

Send samples and capacity requirements for a clearer solution

For reagents, serums, fragrances, disinfectants and small-volume liquids, first confirm fill volume, corrosion, foaming, viscosity and accuracy requirements, then select magnetic pump filling, servo piston filling, contact-part materials, and downstream sea...

01Packaging container
02Core process
03Equipment needed
04Materials
05Capacity and automation
06Sample details
Materials

Bottle sample / Tube or container sample / Pump and hose material

Sample details

Photos, dimensions, mouth diameter, height, cap or film samples and target output for a... / Material specification, thickness, sealing layer, cap type, label artwork or coding pos... / Downstream process list, target output, site space and manual or automatic loading pref...

Inquiry

Online Inquiry Form

Please specify container type, sealing material, speed target, sample status, and target market.

Sample details

01Preparation material 1

The state of the contents affects the filling method, contact materials, anti-drip, and safety configuration.

Photos, dimensions, mouth diameter, height, cap or film samples and target output for a first configuration check.
02Preparation material 2

The lid structure determines the capping method (press, screw, or place) and whether inline integration is needed.

Material specification, thickness, sealing layer, cap type, label artwork or coding position for compatibility review.
03Preparation material 3

Capacity target determines single machine, semi-automatic, or continuous inline configuration, and also affects the quotation range.

Downstream process list, target output, site space and manual or automatic loading preference.
04Preparation material 4

Site conditions affect electrical control, pneumatics, conveyor length, and safety protection configuration.

Hourly output, shift pattern, main SKU list and expected changeover frequency.
05Preparation material 5

Site conditions affect electrical control, pneumatics, conveyor length, and safety protection configuration.

Product, container, cap or film samples plus utility information for final test and quotation configuration.

Common selection mistakes

01Asking only for a machine name
02Ignoring sample dimensions
03Skipping product behavior review
04Fixing a high-speed line too early
05Looking at the main machine only

Common questions

01Can you recommend a route if my samples are not complete?

Yes. Send the photos, rough dimensions, product state and target output you already have. We will judge the first route and list what still needs confirmation.

02Can One Machine Handle Multiple Capacities?

Samples decide tooling, contact parts, sealing or capping force, filling stability and inspection method. Without samples, the configuration can easily be mismatched.

03Can Corrosive Liquids Be Filled?

For this topic, we usually compare Magnetic pump filling, Servo piston filling, Explosion-proof filling according to package format, product behavior and output target.

04Can Capping and Labeling Follow Filling?

Yes. After the main process is confirmed, conveyor, labeler, coder, checkweigher, vision inspection and reject devices can be added by line rhythm.

05Can I Inquire Without Samples?

A full line is suitable when the package is stable, output target is clear, site space is confirmed and changeover range is not too wide.

06What information should I send first?

Send product photos, container or bag samples, key dimensions, cap or film material, target output and any downstream packing requirement.

Quick InquiryWhatsApp

We only load non-essential third-party content and analytics services after obtaining your consent, to protect privacy and optimize browsing experience.