PLC Controlled Automatic Grinding Machine for Melamine Tableware with 1200-2400 Pcs/Hour Capacity and Multi-Angle Adjustable Grinding Head

The PLC Controlled Automatic Melamine Tableware Edge Grinding Machine is designed for automatic edge finishing after hydraulic compression molding. During melamine tableware production, molded products may have excess flash, rough edges or visible parting lines around the rim. This machine automatically performs the post-molding grinding process to reduce repetitive manual finishing and improve batch consistency.

With PLC control, automatic material handling and adjustable grinding mechanisms, the equipment can be configured for different tableware shapes and dimensions.

Reference production capacity: 1,200–2,400 PCS/H

Typical applications include:

• Melamine Plates
• Bowls
• Trays
• Cups
• Spoons
• Serving Ware
• Hotel Dinnerware
• Restaurant Tableware

The machine can be installed after the hydraulic melamine press as part of an automated tableware production line.

Automatic Edge Grinding
The machine automatically processes the unfinished edge left after compression molding. Main finishing functions include: flash removal, edge grinding, deburring, rim smoothing, and parting-line finishing. This reduces dependence on repetitive manual grinding during large-volume tableware production.

1,200–2,400 PCS/H Processing Capacity
Reference production capacity: 1,200–2,400 Pieces Per Hour. Actual output depends on product diameter, product shape, edge profile, grinding requirement, and machine configuration. The high-throughput design makes the equipment suitable for continuous tableware manufacturing.

PLC Automatic Control
The integrated PLC system manages the automatic grinding sequence. Operators can adjust relevant processing parameters according to different products. The control system supports management of processing cycle, product feeding, grinding sequence, and operating parameters. This makes production changeover more convenient when processing several tableware specifications.

Multi-Shape Tableware Compatibility
The grinding mechanism can be configured for different tableware profiles. Typical shapes include: round, square, oval, rectangular, curved, and irregular. This provides greater flexibility for factories producing multiple dinnerware collections.

Adjustable Grinding Mechanism
Different products require different grinding positions and contact conditions. The grinding mechanism can be adjusted according to product size, rim thickness, edge shape, product depth, and required finish. Suitable adjustment helps maintain more consistent finishing across different production batches.

Consistent Edge Finishing
Manual grinding quality can vary according to individual operator technique. Automatic processing provides a more standardized grinding sequence for repeated products. Main advantages include consistent edge profile, controlled grinding, reduced operator variation, and stable batch finishing.

Suitable for Continuous Production
The machine is designed for repetitive post-molding processing in melamine tableware factories. It can be positioned directly after compression molding to create a continuous workflow: molding → edge grinding → inspection → packaging. This is particularly useful for manufacturers producing large quantities of standardized dinnerware.

Reduced Manual Grinding Work
Traditional tableware edge finishing often requires workers to hold and grind products individually. Automatic processing reduces repetitive manual handling and allows operators to focus more on machine monitoring, product inspection, material handling, and production management.

DONGXIN can configure the automatic grinding machine according to the customer's tableware range, product dimensions and production capacity.

Product Fixture Customization
Different products require corresponding positioning and holding structures. Fixtures can be developed for plates, bowls, trays, cups, spoons, and special-shaped tableware. Customers can provide product samples or dimensions for technical evaluation.

Product Size Matching
Machine configuration can be evaluated according to product diameter, length, width, depth, and rim profile. This is particularly important for factories producing products with significantly different dimensions.

Grinding Head Adjustment
Grinding positions can be configured according to the product edge. Adjustment can focus on grinding angle, contact position, edge profile, and required finishing level.

Production Capacity Matching
The machine can be selected according to the customer's existing molding capacity. Important information includes hourly output, number of press machines, product types, and working shifts. This helps prevent the grinding stage from becoming a bottleneck after molding.

PLC Program Configuration
Different operating settings can be established according to product requirements. Typical settings can cover processing sequence, feeding, grinding, product transfer, and cycle timing.

Electrical Configuration
Electrical specifications can be configured according to the destination country's factory standard. Please provide voltage, frequency, and phase before final machine production.

Melamine Plate Edge Grinding
Suitable for dinner plates, flat plates, deep plates, restaurant plates, and serving plates. The machine removes excess molding flash and finishes the outer rim after compression molding.

Melamine Bowl Finishing
Applicable products include rice bowls, soup bowls, salad bowls, deep bowls, and serving bowls. Grinding settings can be adjusted according to bowl diameter and edge structure.

Serving Tray Processing
Suitable for hotel trays, food trays, cafeteria trays, serving trays, and customized trays. Different positioning solutions can be evaluated according to tray dimensions.

Cups & Small Tableware
The equipment can also be configured for suitable cups, small bowls, small plates, spoons, and tableware accessories. The fixture and grinding mechanism should be matched to the actual product.

Hotel & Restaurant Tableware
Suitable for manufacturers producing large batches of hotel dinnerware, restaurant plates, catering bowls, and commercial serving ware. Automatic grinding helps standardize the finishing stage for repeated commercial orders.

Special-Shaped Tableware
Customized configurations can be evaluated for square plates, oval plates, irregular bowls, decorative trays, and special serving dishes. Customers are recommended to provide physical samples for complex edge profiles.

Step 1 — Product Analysis
Before machine configuration, DONGXIN confirms product shape, dimensions, edge profile, required output, product variety, and factory voltage.

Step 2 — Mechanical Configuration
The grinding system is configured according to the target products. Main areas include machine frame, grinding mechanism, product fixtures, feeding system, and transfer system.

Step 3 — Grinding Head Installation
Grinding components are installed and positioned according to the required processing range. Important considerations include grinding position, contact angle, product edge, and adjustment range.

Step 4 — PLC & Electrical Integration
The automatic control system is installed. Main components include PLC, touchscreen, sensors, electrical cabinet, and control components.

Step 5 — Product Positioning Test
Sample products are used to evaluate fixture position, product stability, grinding contact, and product transfer.

Step 6 — Grinding Process Adjustment
The processing parameters are adjusted according to the actual tableware. Inspection focuses on flash removal, edge smoothness, grinding uniformity, and product surface protection.

Step 7 — Continuous Production Test
Repeated automatic cycles are performed to evaluate feeding stability, grinding performance, PLC response, product transfer, and continuous operation.

Step 8 — Final Inspection
Before shipment, the machine is checked for grinding mechanism, PLC system, touchscreen, feeding unit, product fixtures, electrical components, and safety functions.

Mechanical Inspection
Checking machine structure, grinding head position, fixture alignment, and moving components.

PLC & Electrical Inspection
Checking PLC response, touchscreen, sensors, electrical wiring, and automatic sequence.

Grinding Performance Inspection
Sample products can be evaluated for flash removal, rim smoothness, edge uniformity, and surface condition.

Continuous Running Test
The machine performs repeated cycles before shipment to evaluate operating stability.

The machine is prepared for international transportation using suitable protective packaging. Protection can include protective film, moisture protection, component fixing, electrical cabinet protection, and reinforced export packaging. Grinding components and accessories can be secured separately where necessary.

The automatic grinding machine is normally positioned after hydraulic compression molding. Recommended production workflow: raw material → automatic weighing → high frequency preheating → hydraulic press molding → automatic edge grinding → quality inspection → packaging. For factories with multiple hydraulic presses, grinding capacity can be evaluated according to the combined molding output.