High Precision Automatic Weighing Machine for Melamine Powder with ±0.1–0.3g Accuracy and 120 Cycles/Min Speed

The Precision Automatic Melamine Powder Weighing & Batching Machine is designed for accurate raw-material preparation before preheating and hydraulic compression molding in melamine tableware factories.

The machine automatically completes the material dosing process through: Powder Feeding → Precision Weighing → Target Weight Confirmation → Automatic Discharging → Next Cycle

Compared with repeated manual weighing, automatic batching provides a more standardized material quantity for each molding cycle and reduces variation caused by different operators.

The machine is suitable for: Melamine Moulding Compound (MMC) / Urea Moulding Compound (UMC) / Urea Formaldehyde Moulding Powder

Typical downstream products include: Melamine Plates / Bowls / Cups / Trays / Salad Bowls / Dinnerware / Commercial Tableware

The equipment can operate independently or be integrated with a High Frequency Preheating Machine and Hydraulic Melamine Press Machine for a more automated tableware production workflow.

The standard weighing range is: 20–500g

This range covers material dosing requirements for many common melamine and urea tableware products.

The weighing range can also be customized according to: Product Weight / Mold Size / Powder Consumption / Production Requirements

The weighing system uses industrial load cells to provide precise material measurement.

Reference weighing accuracy: ±0.1–0.3g

Accurate dosing helps maintain a consistent quantity of molding compound for each production cycle.

Benefits include: Reduced Weight Variation / Better Batch Consistency / Controlled Material Consumption / Less Manual Error

The machine integrates several material preparation steps into one automatic operating sequence.

Typical cycle: Automatic Feeding → Dynamic Weighing → Fine Dosing → Target Weight → Feeding Stop → Automatic Discharge

After material discharge, the system automatically prepares for the next weighing cycle.

This reduces repetitive manual weighing work during continuous tableware production.

Factory equipment such as hydraulic presses, grinders and material handling systems can generate vibration during production.

The weighing system incorporates an anti-vibration design to help maintain measurement stability under workshop conditions.

Main benefits: Stable Signal / Reduced Vibration Interference / Consistent Weighing / Reliable Continuous Operation

This makes the machine suitable for installation inside active melamine tableware production workshops.

The integrated PLC and touchscreen provide centralized control of weighing parameters.

Operators can manage: Target Weight / Feeding Parameters / Product Recipe / Dosing Cycle / Operating Settings

Different weighing recipes can be stored for different products.

For example: Small Bowl → Dinner Plate → Deep Bowl → Serving Tray

When changing production, operators can select the corresponding recipe instead of manually resetting every parameter.

Components that contact molding powder are made from stainless steel.

Advantages include: Easy Cleaning / Powder Handling / Reduced Material Residue / Practical Maintenance

The structure is suitable for fine melamine and urea molding powders used in tableware manufacturing.

The machine supports automatic calibration to simplify weighing-system adjustment and daily operation.

Calibration helps maintain: Zero Stability / Weight Measurement / Repeatability / Batch Consistency

Regular checking and calibration are recommended according to factory operating conditions.

The machine can be integrated into an existing tableware manufacturing process.

Recommended workflow: Raw Material → Automatic Weighing → High Frequency Preheating → Hydraulic Press Molding → Edge Grinding → Inspection → Packaging

This makes it suitable for both new production lines and factories upgrading from manual weighing.

DONGXIN provides customized weighing and batching solutions according to different tableware products, material consumption and factory layouts.

The standard configuration covers: 20–500g

If the customer's products require different material quantities, the weighing system can be evaluated according to: Minimum Powder Weight / Maximum Powder Weight / Product Size / Mold Capacity

The feeding hopper can be adjusted according to production requirements.

Customization can include: Hopper Capacity / Feeding Position / Hopper Height / Powder Outlet

A suitable hopper configuration helps reduce unnecessary material refilling during continuous production.

For existing factories, machine dimensions and discharge position can be evaluated according to surrounding equipment.

Important considerations include: Preheater Position / Hydraulic Press Position / Operator Working Area / Material Transfer Direction

This makes the machine easier to integrate into an existing workshop.

Different tableware products can use different preset weighing parameters.

Typical recipes can be created for: Plate / Bowl / Cup / Tray / Salad Bowl / Serving Ware

Recipe management simplifies frequent product changeovers.

The PLC control system can be configured according to actual production requirements.

Options can include: Recipe Management / Production Parameters / Operating Interface / Communication Requirements

This provides greater flexibility for automated factory integration.

Available configurations include: 220V / 380V / 50Hz / 60Hz

Electrical specifications should be confirmed according to the customer's local factory power supply.

Suitable for automatic material dosing for: Dinner Plates / Square Plates / Restaurant Plates / Presentation Plates / Serving Plates

Each plate specification can use a corresponding preset powder weight.

Applicable products include: Rice Bowls / Soup Bowls / Salad Bowls / Deep Bowls / Serving Bowls

When switching between different bowl sizes, operators can select the corresponding weighing recipe.

Suitable for: Food Trays / Serving Trays / Hotel Trays / Cafeteria Trays / Customized Trays

Larger products can use customized weighing settings according to material consumption.

The system can also be configured for: Melamine Cups / Small Bowls / Small Plates / Tableware Accessories

A suitable weighing range should be selected according to the molding material required by each product.

The equipment can process suitable urea-based molding powders including: UMC / Urea Formaldehyde Moulding Powder

It can therefore serve factories manufacturing both melamine and urea molded products.

For factories producing multiple tableware collections, recipe-based control simplifies production changes.

Typical production combination: Plates + Bowls + Cups + Trays + Serving Ware

Different recipes can be selected according to the current mold and product.

Before machine production, the customer's requirements are confirmed.

Important information includes: Molding Powder Type / Minimum Weight / Maximum Weight / Required Accuracy / Tableware Products / Production Capacity / Voltage

Main mechanical components are prepared and installed.

Key components include: Machine Frame / Feeding Hopper / Vibration Feeder / Weighing Unit / Discharge Mechanism

The precision weighing sensor is installed and adjusted.

Testing focuses on: Zero Stability / Sensor Response / Weight Measurement / Repeatability

The control system is configured according to the required batching process.

Typical operating logic: Start → Fast Feeding → Fine Feeding → Target Weight → Stop Feeding → Discharge → Reset

The weighing system is calibrated before continuous testing.

Main calibration checks include: Zero Point / Reference Weight / Target Weight / Measurement Repeatability

Actual molding powder can be used to evaluate machine performance.

Testing focuses on: Powder Feeding / Weighing Stability / Target Weight Control / Discharge Performance

Repeated automatic weighing cycles are performed to evaluate: Load Cell Stability / Feeding Response / PLC Operation / Discharge Reliability / Continuous Performance

Before shipment, the machine is inspected for: Weighing Accuracy / PLC Control / Touchscreen / Feeding System / Discharge System / Electrical Components / Mechanical Structure

Checking: Sensor Response / Measurement Stability / Repeatability / Anti-Vibration Performance

Checking: Powder Flow / Feeding Speed / Fine Feeding / Feeding Stop Response

Checking: Touchscreen Functions / Recipe Storage / Parameter Adjustment / Automatic Cycle

The machine is calibrated and tested using appropriate reference weights and molding material.

Repeated batching cycles are performed before delivery to confirm stable operation.

The machine is prepared for international transportation with suitable export protection.

Packaging can include: Protective Film / Moisture Protection / Component Fixing / Electrical Protection / Reinforced Export Packaging

Operating documents and related accessories can be packed with the machine according to the final configuration.

The automatic weighing machine is normally installed before material preheating.

Recommended melamine tableware production sequence: MMC/UMC Powder → Automatic Weighing & Batching → High Frequency Preheating → Hydraulic Compression Molding → Automatic Edge Grinding → Quality Inspection → Packaging

The machine can also be used independently to replace manual weighing stations in existing factories.