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PLC Controlled Automatic Grinding Machine for Melamine Tableware with 1200–2400 pcs/hour Capacity and Multi-Angle Grinding

PLC Controlled Automatic Grinding Machine for Melamine Tableware with 1200–2400 pcs/hour Capacity and Multi-Angle Grinding

Brand Name: DONGXIN
Model Number: PL003
MOQ: 1 Set
Price: Negotiable
Payment Terms: L/C,T/T
Supply Ability: 20 Sets/Month
Detail Information
Place of Origin:
CHINA
Certification:
CE, ISO
Brand Name:
DONGXIN
Machine Type:
Automatic Melamine Tableware Grinding Machine
Main Function:
PLC With Touchscreen Interface
Automation Grade:
Automatic
Applicable Material:
Molded Melamine Products
Applicable Products:
Melamine Plates, Bowls And Trays
Application:
Post-Molding Edge Finishing For Tableware Production
Packaging Details:
Export Standard Wooden Case Package
Supply Ability:
20 Sets/Month
Highlight:

PLC Control Automatic Grinding Machine

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1200–2400 pcs/hour Melamine Tableware Grinding Machine

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Multi-Angle Grinding Edge Finishing Machine

Product Description
PLC Automatic Melamine Tableware Edge Grinding and Polishing Machine
Product Core Advantages & Main Structure
Product Overview

The PLC Automatic Melamine Tableware Edge Grinding and Polishing Machine is designed for the finishing stage after melamine compression molding. It automatically removes flash, rough edges and visible parting seams from molded tableware, providing a more efficient alternative to repetitive manual grinding.

The machine combines PLC control, touchscreen operation, adjustable grinding heads and multi-angle sanding in one finishing system. Different settings can be used for different product profiles, allowing manufacturers to process a broader range of tableware on the same equipment.

Typical products include:

  • Melamine Plates
  • Bowls
  • Serving Trays
  • Cups
  • Spoons
  • Children's Tableware
  • Hotel Tableware

Depending on product dimensions and shape, processing capacity is approximately 1,200–2,400 pcs/hour, making the equipment suitable for medium and large melamine tableware production facilities.


Automatic Post-Molding Edge Finishing

After compression molding, tableware can have excess material around the rim or parting line. The machine performs several finishing operations automatically:

  • Edge Trimming
  • Flash Removal
  • Deburring
  • Sanding
  • Edge Smoothing

Automating this process helps manufacturers achieve more consistent edge treatment across large production batches.


PLC Control with Touchscreen Operation

A PLC + touchscreen control system manages the grinding process and allows operators to change processing parameters for different products.

Adjustable settings include:

  • Grinding Speed
  • Conveyor Timing
  • Rotation Pressure
  • Processing Cycle

When production changes from plates to bowls, trays or other tableware, the relevant parameters can be adjusted according to the new product.


Multi-Angle Grinding for Different Profiles

The adjustable sanding mechanism is suitable for more than conventional flat-edged tableware.

It can accommodate:

  • Flat Edges
  • Curved Rims
  • Deep Edges
  • Irregular Shapes
  • Complex Profiles

This flexibility is particularly useful for factories manufacturing multiple tableware series instead of a single standardized product.


High-Efficiency Processing

Typical production capacity reaches:

  • 1,200–2,400 Pieces Per Hour

Actual throughput varies according to:

  • Product Size
  • Product Shape
  • Edge Structure
  • Required Grinding Level
  • Machine Configuration

The automatic process provides a practical way to increase post-molding finishing capacity.


Controlled Grinding Pressure

The flexible pressure system maintains controlled contact between the grinding components and the tableware edge.

Its main benefits include:

  • Uniform Grinding
  • Reduced Over-Sanding
  • Consistent Edge Profile
  • Stable Batch Processing

Controlled pressure is especially important when processing decorative melamine products where the original surface appearance needs to be maintained.


Convenient Product Changeover

Adjustable fixtures and replaceable sanding components allow the machine to handle different product specifications.

It is suitable for production involving:

  • Multiple Sizes
  • Multiple Shapes
  • Multiple Tableware Collections

The setup can be adjusted when moving from one production batch to another.


Dust Collection Compatibility

Edge grinding produces fine processing dust, so the machine is designed with an industrial dust extraction connection.

It can be integrated with:

  • Industrial Vacuum Equipment
  • Independent Dust Collector
  • Central Factory Dust Collection System

This supports better dust management and a cleaner grinding area.


Main Machine Structure
Component Function
PLC Controller Controls the automatic grinding process
Touchscreen HMI Allows parameter setting and machine operation
Grinding Head System Performs edge grinding and finishing
Sand Belt System Removes flash and uneven edge material
Adjustable Fixture Holds different tableware products during processing
Flexible Pressure System Controls grinding contact pressure
Product Transfer System Supports continuous processing
Dust Extraction Interface Connects with industrial dust collection equipment
Electrical Control Cabinet Manages electrical and automation functions
Heavy-Duty Machine Frame Maintains structural stability during operation

Product Parameters
Parameter Specification
Product Name Automatic Melamine Tableware Grinding Machine
Model PL003
Main Function Edge Grinding / Deburring / Polishing
Machine Power 11 KW
Control System PLC + Touchscreen
Sand Belt Dimensions 4000 mm * 4
Maximum Grinding Length 300 mm
Processing Capacity 1,200–2,400 pcs/hour
Operation Mode Fully Automatic / Semi-Automatic
Air Supply Pressure 0.5–0.7 MPa
Power Supply 380V / 220V, 3-Phase
Voltage Customization Available
Applicable Products Plates / Bowls / Trays / Cups / Spoons
Main Material Application Melamine / Urea Resin Thermosetting Products
Dust Extraction Industrial Dust Extraction Connection
Main Application Post-Molding Tableware Finishing
Brand DONGXIN
Place of Origin China
MOQ 1 Set
Supply Capacity 50 Sets Per Month
Packaging Plastic Film Packaging
OEM/ODM Available

OEM/ODM Customization
DONGXIN melamine tableware grinding machine customization options

DONGXIN can configure the machine around the customer's actual tableware specifications and existing factory conditions rather than limiting the equipment to one standard product.

Customized Product Fixtures

Fixtures can be adapted for different tableware geometries, including:

  • Round Plates
  • Square Plates
  • Deep Bowls
  • Serving Trays
  • Cups
  • Spoons
  • Irregular Tableware

The appropriate fixture helps keep each product correctly positioned during automatic grinding.

Grinding System Adjustment

Grinding configuration can be matched to:

  • Product Diameter
  • Rim Depth
  • Edge Thickness
  • Curvature
  • Required Finish

This allows the equipment to serve factories that frequently change between different product series.

Electrical Configuration

Standard options include:

  • 380V
  • 220V
  • 3-Phase

Electrical specifications can be configured according to local factory standards before production.

Capacity Matching

Machine configuration can also be evaluated according to:

  • Daily Output
  • Product Dimensions
  • Number of Product Types
  • Production Shift Arrangement

This helps match the finishing equipment to the output of the customer's existing molding operation.

Dust Collection Matching

The dust extraction interface can work with:

  • Industrial Vacuum Equipment
  • Independent Dust Collector
  • Central Factory Dust Collection System

The final arrangement can be selected according to workshop layout and production conditions.


Application Range
Melamine Dinner Plates

Suitable for:

  • Round Plates
  • Square Plates
  • Dinner Plates
  • Restaurant Plates
  • Decorative Plates

The machine removes molding flash and smooths the outer rim after hydraulic compression molding.

Melamine Bowls

Suitable for:

  • Rice Bowls
  • Soup Bowls
  • Deep Bowls
  • Serving Bowls
  • Restaurant Bowls

Adjustable grinding heads allow the system to follow curved edges and deeper rim profiles.

Serving Trays

Suitable for:

  • Food Trays
  • Hotel Trays
  • Children's Trays
  • Cafeteria Trays
  • Customized Serving Trays

Fixture and grinding settings can be adapted to different tray dimensions and edge structures.

Cups and Small Tableware

The machine can also be configured for:

  • Melamine Cups
  • Spoons
  • Sauce Dishes
  • Small Serving Pieces

The appropriate fixture should be selected according to each product's dimensions.

Commercial Hotel and Restaurant Tableware

The machine is suitable for manufacturers producing large quantities of:

  • Hotel Dinnerware
  • Restaurant Plates
  • Catering Bowls
  • Commercial Serving Ware

Automatic finishing helps maintain a more uniform edge appearance throughout larger commercial orders.

Urea Resin Molded Products

In addition to melamine dinnerware, the machine can process suitable thermosetting molded products such as:

  • Urea Formaldehyde Molded Products
  • Resin Tableware
  • Related Thermosetting Components

The actual configuration should be confirmed according to product structure and material.


Production, Quality Control & Packaging
Requirement Confirmation

Before manufacturing, DONGXIN confirms:

  • Product Shape
  • Product Dimensions
  • Edge Structure
  • Required Output
  • Factory Voltage

These details are used to determine the grinding and fixture configuration.

Mechanical Preparation

The main mechanical assemblies are then prepared, including:

  • Machine Frame
  • Grinding Mechanism
  • Sand Belt System
  • Fixtures
  • Transfer Components
PLC and Electrical Installation

The control system is installed and configured through:

  • PLC Installation
  • Touchscreen Setup
  • Electrical Wiring
  • Sensor Connection
  • Parameter Configuration
Grinding System Setup

Grinding heads and fixtures are adjusted according to the target products. Key setup items include:

  • Grinding Position
  • Contact Pressure
  • Sanding Angle
  • Product Positioning
Trial Grinding

Sample products can be used to evaluate:

  • Flash Removal
  • Edge Smoothness
  • Grinding Uniformity
  • Product Positioning

The working parameters are then adjusted according to the actual product structure.

Continuous Operation Test

Repeated operating cycles are used to evaluate:

  • Mechanical Stability
  • PLC Response
  • Grinding Head Operation
  • Product Transfer
  • Continuous Processing
Final Inspection

Before shipment, the machine is checked for:

  • Grinding System
  • PLC Control
  • Touchscreen
  • Electrical System
  • Fixtures
  • Transfer System
  • Safety Functions

Quality Control
DONGXIN quality control process for melamine grinding machines

Mechanical inspection focuses on:

  • Frame Stability
  • Grinding Head Position
  • Fixture Alignment
  • Moving Components

Electrical inspection covers:

  • PLC
  • Touchscreen
  • Sensors
  • Electrical Wiring
  • Control Components

Grinding performance is evaluated through:

  • Edge Uniformity
  • Flash Removal
  • Surface Protection
  • Processing Stability

The machine is also operated continuously before shipment to confirm stable performance under normal working conditions.


Packaging

Standard machine packaging:

  • Plastic Film Packaging

Additional export protection can be arranged when required, including:

  • Moisture Protection
  • Component Fixing
  • Electrical Component Protection
  • Reinforced Export Packaging

Production Line Integration

The Automatic Grinding Machine is normally installed after hydraulic compression molding.

A typical melamine tableware manufacturing sequence is:

  • Automatic Weighing
  • High Frequency Preheating
  • Hydraulic Press Molding
  • Automatic Edge Grinding
  • Inspection & Packaging

DONGXIN can also provide supporting equipment and melamine tableware molds according to the customer's production requirements.


Frequently Asked Questions
Q1: What does the automatic grinding machine do after melamine molding?
Its primary job is to remove flash, rough edges and parting seams left after hydraulic compression molding. The machine performs automatic edge grinding, deburring and smoothing before the products move to final inspection and packaging.
Q2: Which melamine products can be processed?
The machine can be configured for:
  • Plates
  • Bowls
  • Trays
  • Cups
  • Spoons
  • Children's Tableware
  • Hotel Tableware
Fixtures and grinding settings should be matched to the dimensions and edge structure of each product.
Q3: How many pieces can the machine process per hour?
Typical capacity is approximately:
  • 1,200–2,400 pcs/hour
Actual output depends on product dimensions, shape and the required level of edge finishing.
Q4: Can the same machine process several different shapes?
Yes. Adjustable grinding heads and fixtures allow the machine to accommodate flat, curved and irregular tableware profiles. When the product changes, the corresponding fixture and processing parameters can be adjusted.
Q5: Can it be connected to an existing melamine tableware production line?
Yes. The grinding machine is designed for post-molding processing and can be installed after an existing hydraulic melamine press.
A typical equipment combination is:
  • Automatic Weighing Machine
  • High Frequency Preheater
  • Hydraulic Melamine Press
  • Automatic Grinding Machine
The final configuration can be matched to the customer's existing equipment and factory production requirements.