ZHCJ-1926W Automatic Weighing Filling Machine for 10–25L Containers

Product Overview

The ZHCJ-1926W is a six-head automatic weighing filling machine developed for dispensing liquid products into 10–25L containers. It combines container conveying, tare weighing, fast and slow filling, weight feedback, and filled-container discharge in one automated process.

Each filling station uses an independent weighing and feedback system. The target fill can therefore be set and adjusted according to the product, container, and required net weight.

The machine is suitable for water, coolant, lubricating oil, selected fine chemicals, pesticides, and other compatible industrial liquids. A diving filling mechanism helps control splashing and foam by lowering the filling nozzles toward or into the container during the filling cycle.

The published production capacity is up to 600 containers per hour, with a stated filling error of 0.2%. Actual performance depends on the fill quantity, liquid viscosity, density, foaming characteristics, supply pressure, container stability, and required accuracy.

Independent Weighing and Feedback Control

Net-Weight Filling

Unlike a time-based or fixed-volume filling system, the ZHCJ-1926W measures the weight delivered into each container.

The basic process is:

1. An empty container enters the filling station.

2. The weighing platform detects the container.

3. The control system records or compensates for the tare weight.

4. The filling valve begins the fast-filling stage.

5. Flow decreases as the measured weight approaches the target.

6. Filling stops when the configured target is reached.

7. The filled container leaves the station.

Because the product is measured by weight, changes in temperature or density affect the relationship between weight and volume. The target should therefore be defined as net weight when weighing accuracy is the primary requirement.

Six Independent Filling Heads

The machine is equipped with six filling heads. Each head has an independent weighing and feedback system that can be adjusted separately.

Individual adjustment helps compensate for differences in:

• Filling-valve response

• Product flow

• Supply-pipe length

• Container position

• Load-cell calibration

• Mechanical installation

During commissioning, every weighing station should be calibrated using certified test weights and verified with the actual product.

Published Filling Error

The original product information lists an error range of 0.2%.

Before using this value as a contractual filling-accuracy guarantee, confirm whether it means:

• ±0.2% of the target net weight

• A total range of 0.2%

• Repeatability between consecutive containers

• Accuracy after statistical averaging

• Accuracy under specified product and speed conditions

The test liquid, target weight, container type, production speed, and measurement method should be stated in the technical agreement.

Automated Container Handling

Container Infeed

Containers enter the filling area through the conveyor. Sensors detect their arrival and coordinate the filling sequence through the PLC control system.

The infeed should maintain sufficient spacing so that each container reaches the correct weighing station without collision or misalignment.

Container Counting and Positioning

The control system counts incoming containers and positions them beneath the filling heads. Correct positioning is particularly important for wide-mouth containers because an off-center nozzle can cause splashing or contaminate the container rim.

Guides should be adjusted to the actual container width and shape while allowing the container to move without excessive friction.

Tare-Weighing Process

Container tare weight can vary because of manufacturing tolerances. A tare-weighing stage helps the system calculate the product’s net weight rather than treating all empty containers as identical.

The permitted container-weight variation should be evaluated during sample testing.

Filled-Container Discharge

After filling, the containers move out of the weighing station for manual handling or integration with downstream equipment.

Depending on the packaging format, downstream equipment may include:

• Cap or lid placing

• Capping or lid pressing

• Induction sealing

• Leak inspection

• Labeling

• Inkjet coding

• Checkweighing

• Case packing

• Palletizing

These functions are not included unless specified in the final line configuration.

Fast and Slow Diving Filling

Two-Stage Filling

The ZHCJ-1926W uses fast and slow filling stages.

Fast filling supplies most of the target quantity to maintain production efficiency. As the measured weight approaches the set point, the machine changes to slow filling to reduce overshoot and improve final weight control.

The changeover point should be configured according to:

• Target weight

• Liquid viscosity

• Liquid density

• Supply pressure

• Valve response

• Foaming behavior

• Required accuracy

Diving Filling Mechanism

The filling nozzles move downward toward or into the container during filling. This shortens the free-fall distance and can help reduce splashing and foam.

The nozzle can rise according to the filling sequence where supported by the final machine configuration.

Diving filling is useful for products such as:

• Foaming cleaning liquids

• Coolant

• Selected agricultural chemicals

• Lubricating oils

• Liquids that splash when discharged from height

The actual nozzle movement, immersion depth, and lifting program should be tested with the customer’s product and container.

Drip and Stringing Control

Some oils and chemical liquids may drip or form strings after the valve closes. Appropriate nozzle design, cut-off control, suck-back, collection trays, or other options may be required depending on the material.

Drip-free performance should be evaluated using the actual product rather than water alone.

Container Compatibility

The machine is designed for large containers within the stated dimensional range.

Container compatibility also depends on:

• Container height

• Neck position

• Opening position

• Handle position

• Bottom rigidity

• Empty-container weight

• Wall strength

• Stability on the conveyor

• Cap or lid format

Rectangular jerry cans, round pails, drums, and irregular containers may require different guide rails, positioning devices, or nozzle locations.

Customers should provide drawings and physical container samples before final machine production.

Liquid Applications

Lubricating Oil

Weight-based filling can be used for lubricating oils packaged in large containers. The filling valve, pipe diameter, supply system, and nozzle should be selected according to viscosity and temperature.

Coolant

The machine can fill compatible coolant products when the wetted materials, seals, and pipe components are chemically suitable.

Foaming behavior should be tested to determine the fast-to-slow filling transition and nozzle movement.

Water and Water-Based Liquids

Water and compatible water-based products can be processed using the weighing system. High-flow applications require sufficient material supply and balanced pressure across all six heads.

Fine Chemicals

Selected fine chemicals can be filled when their corrosiveness, toxicity, volatility, flammability, and material compatibility have been reviewed.

A standard machine should not be assumed to be suitable for hazardous chemicals without an application-specific safety assessment.

Agricultural Chemicals

The page lists pesticide liquids as an application. Filling agricultural chemicals may require:

• Corrosion-resistant contact components

• Compatible seals and hoses

• Enclosed filling areas

• Exhaust or vapor collection

• Spill containment

• Operator protection

• Dedicated cleaning procedures

• Applicable electrical protection

The product Safety Data Sheet should be submitted before confirming the machine configuration.

Product Supply System

Stable filling requires a suitable product-delivery system upstream of the machine.

The supply arrangement may include:

• Storage tank

• Buffer tank

• Transfer pump

• Level control

• Filter

• Pressure regulation

• Return pipe

• Temperature control

• Agitation

Supply pressure should remain stable while multiple filling heads are operating. Insufficient supply can cause longer filling times or different flow behavior between heads.

The customer should provide product viscosity, density, operating temperature, and available supply pressure before the delivery system is selected.

PLC and Operator Control

The ZHCJ-1926W uses PLC-based control for coordinating container handling, weighing, and filling.

Depending on the final configuration, operators may be able to set or review:

• Target net weight

• Fast-filling quantity

• Slow-filling quantity

• Filling speed

• Nozzle movement

• Container count

• Production status

• Alarm information

• Manual operation

• Calibration settings

Recipe storage, password levels, data export, language selection, and remote communication should be confirmed as options rather than assumed standard functions.

Production parameters should only be changed by authorized operators.

Cleaning and Maintenance

Quick-Connection Filling Pipes

The product page describes quick-connect filling pipes that can be disassembled for cleaning and maintenance.

Before changing products, operators should:

1. Stop the material supply.

2. Depressurize the filling circuit.

3. Drain the remaining product safely.

4. Remove the applicable pipes and nozzles.

5. Clean them using a compatible method.

6. Inspect seals and connections.

7. Reassemble the product path.

8. Run a controlled test before production.

Product Changeover

The required cleaning method depends on whether the next product is compatible with the previous one.

Cross-contamination requirements should be defined for:

• Different lubricant grades

• Coolant formulations

• Pesticides

• Fine chemicals

• Food-related liquids

• Products with different colors or odors

The current page does not state that the machine has an automatic CIP system. Manual or semi-automatic cleaning requirements should therefore be confirmed.

Weighing-System Maintenance

The weighing platforms and load cells should be protected from impact, overload, accumulated product, and incorrect mechanical adjustment.

Routine checks should include:

• Zero-point stability

• Calibration accuracy

• Platform movement

• Cable condition

• Sensor mounting

• Conveyor alignment

• Product buildup

• Filling-valve response

Production-Line Integration

The ZHCJ-1926W can operate as a standalone filling machine or form part of a larger packaging line.

A complete line may include:

1. Empty-container loading

2. Container conveying

3. Automatic weighing and filling

4. Cap or lid feeding

5. Capping or lid pressing

6. Sealing

7. Labeling

8. Coding

9. Weight inspection

10. Case packing or palletizing

Line integration should define the conveyor height, operating direction, container spacing, speed signals, alarm interlocks, and upstream/downstream control logic.

The published filling capacity does not automatically represent the output of a complete line. The slowest connected machine determines overall production speed.

Machine Selection Checklist

Before confirming the ZHCJ-1926W, provide:

• Product name

• Safety Data Sheet

• Density

• Viscosity

• Filling temperature

• Foaming tendency

• Target net weight

• Permitted filling tolerance

• Container dimensions

• Container opening

• Container sample

• Required output

• Available electrical supply

• Available compressed air

• Upstream supply method

• Downstream packaging process

• Cleaning requirements

Sample testing with the actual liquid and containers is recommended when accuracy, foam, chemical compatibility, or drip control is critical.

Technical Specifications

Dimensions, capacity, power consumption, and accuracy should be reconfirmed after the machine configuration is finalized.

Installation Requirements

The installation site should provide:

• Level and load-bearing floor

• Required electrical supply

• Stable compressed air

• Product supply connection

• Safe drainage or spill containment

• Maintenance clearance

• Adequate lighting

• Suitable ventilation

• Emergency access

• Protection appropriate to the filled material

The machine must be leveled before the weighing systems are calibrated. Floor vibration and nearby equipment can affect weight readings.

Quality and Engineering Support

ZUNGWAN supplies filling and packaging equipment for liquid, semi-liquid, cream, powder, food, cosmetic, pharmaceutical, daily chemical, and industrial applications.

Support for the ZHCJ-1926W can include:

• Product and container evaluation

• Filling tests

• Machine configuration

• Contact-material selection

• Container-guide design

• Production-line integration

• Installation guidance

• Operator training

• Parameter setup

• Spare-parts planning

• Technical troubleshooting

Customers can submit product samples, containers, caps, labels, drawings, and production requirements for project evaluation.

FAQs

Is the ZHCJ-1926W a volumetric or weight-based filler?

It is a weight-based filling machine. Each filling station measures the amount delivered into the container using an independent weighing and feedback system.

What container sizes can it fill?

The published filling range is 10–25L. Container length, width, height, opening position, stability, and empty weight must also match the machine configuration.

What does the stated 0.2% error mean?

The page lists a 0.2% filling error, but the exact definition and testing conditions should be confirmed. Accuracy depends on the product, target weight, filling speed, container, and calibration.

Can the machine reach 600 containers per hour?

The published capacity is up to 600 containers per hour. Actual output depends on fill quantity, product flow, viscosity, foam, container handling, and downstream equipment.

Can each filling head be adjusted separately?

Yes. Each of the six filling heads has an independent weighing and feedback system that can be calibrated or fine-tuned separately.

Can it fill foaming liquids?

The diving nozzle and fast/slow filling sequence can help reduce foam. Final performance should be tested using the actual product.

Is it suitable for lubricating oil?

Yes. The page lists lubricating oil as an application. Product viscosity, temperature, pipe diameter, valve type, seals, and supply pressure should be reviewed.

Can it fill pesticides or chemical liquids?

It may fill compatible chemical and pesticide liquids after their Safety Data Sheets, corrosiveness, flammability, toxicity, seals, contact materials, and ventilation requirements have been assessed.

Does the machine include capping and labeling?

The current configuration is described as a filling machine. Capping, sealing, labeling, coding, and case packing should be ordered as separate or integrated line equipment.

Is the machine easy to clean?

The filling pipes use quick connections to support disassembly and cleaning. The required cleaning process depends on the product and cross-contamination requirements.

What samples are required before manufacturing?

Provide representative liquid, empty containers, caps or lids, container drawings, target weight, required speed, filling tolerance, and the product Safety Data Sheet.

What utilities are required?

The listed supply is 220V, 50Hz with 3.5kW main-machine power and compressed air at 0.6–0.8MPa. Electrical phase, air consumption, and site connections should be confirmed before installation.