Automatic Melamine Tableware Edge Grinding Machine For Bowl Plate Polishing

The Automatic Melamine Tableware Edge Grinding Machine is dedicated post-forming processing equipment specially developed for melamine dinnerware factories. After melamine blanks are hot-pressed by hydraulic molding presses, flash, parting-line burrs and sharp edges appear around bowls, plates, cups and irregular tableware. This machine automatically completes edge deburring, rough grinding, fine grinding and buffing polishing continuously, turning sharp edges into smooth, rounded and safe rims that meet food tableware safety standards.

Adopting PLC touchscreen intelligent control and a contour tracking positioning structure, it replaces traditional labor-intensive manual sanding and polishing. It greatly solves common pain points including inconsistent edge quality, unstable yield, low output and high labor cost. It can work independently as a single station or be integrated into a full melamine production line, matching melamine molding presses, preheating machines and automatic weighing machines to realize continuous automated production. It is widely adopted by manufacturers producing household melamine sets, children's tableware, hotel catering ware and promotional gift melamine products.

• Three-Stage Progressive Grinding & Polishing Process

  Equipped with independent grinding groups for coarse grinding, fine grinding and cotton wheel buffing. The coarse grinding station quickly removes thick flash and large burrs from mold parting lines; fine grinding corrects edge roundness and eliminates scratches; final wax polishing delivers a uniform, delicate matte or semi-gloss edge finish. Each grinding group has separate speed adjustment, avoiding over-grinding or incomplete deburring. The finished edge has a consistent radian and smooth touch, passing food safety inspection requirements for sharp-edge risk control.

• PLC Touch Screen Intelligent Control, Easy Parameter Setting

  Human-machine touch panel for one-stop setting of rotating speed, feeding speed, grinding depth and cycle time. Save parameter formulas for different tableware sizes and shapes. When switching between bowls, round plates, square plates and oval trays, operators can call saved programs directly — no repeated complex debugging. It supports automatic fault alarm, overload protection and running status display. New workers can master operation within a short training period, reducing dependence on experienced polishing workers.

• Strong Compatibility for Multiple Shapes & Sizes of Melamine Ware

  Customized positioning fixtures and vacuum suction holders are available to fit round, square, oval and irregular special-shaped melamine products. The processing range covers common bowls, dinner plates, dessert plates, divided trays, kids' cups and spoons. Fast fixture change design means one machine can serve multiple product specifications, helping factories flexibly respond to mixed orders and new sample development.

• Dust Collection Integrated Design, Clean & Eco-Friendly Workshop

  Reserved interface to connect with a centralized dust extractor or a matched independent dust collector. Grinding dust and melamine powder are sucked away immediately during processing, preventing powder spreading inside the workshop. It protects operators' respiratory health, reduces dust contamination on melamine semi-finished products and flower paper patterns, and lowers the defective rate caused by dust spots. The closed grinding cabin also reduces noise transmission, meeting factory environmental protection inspection standards.

• High Production Efficiency & Stable Batch Consistency

  Continuous automatic feeding, positioning, grinding and discharging cycle. Output: 600–840 pcs/hour for round bowls and plates; 400–600 pcs/hour for square and irregular products. All workpieces follow the same grinding track and parameters. Compared with manual polishing, the difference between each product edge is greatly reduced, ensuring stable finished quality for bulk export orders. It supports long-time continuous 24-hour operation under normal maintenance.

• Solid Machine Frame, Durable Core Components & Low Maintenance Cost

  Heavy-duty thick steel welded frame with stress-relief treatment to avoid frame deformation after long running. High-precision bearings, adjustable grinding motors and wear-resistant sanding wheels are adopted. Key electric components use famous brand parts for stable performance and long service life. Quick-replace grinding consumables (sand wheel, cotton buff wheel) and simple daily maintenance. We provide operation manual, spare parts list and after-sales technical guidance.

• Safety Protection Mechanism for Industrial Production

  Full safety guard covers on grinding stations; emergency stop buttons installed on multiple sides of the machine. Auto-stop triggers on abnormal jamming, overload and door opening. Air pressure monitoring system for the vacuum suction fixture prevents workpieces from flying out during grinding. CE-compliant electrical circuit layout, suitable for overseas factory use.

1. 1Operators place the hot-pressed melamine semi-finished blank on the feeding station.
2. 2The vacuum suction fixture locks the workpiece automatically.
3. 3The workpiece transfers to the first station: coarse grinding to remove flash and thick burrs.
4. 4Transfer to the fine grinding station for edge shaping and scratch removal.
5. 5Transfer to the buffing station for final polishing to achieve a smooth, rounded rim.
6. 6The grinding head resets and the finished workpiece is discharged automatically.
7. 7The dust collector extracts melamine powder during the whole grinding process.
8. 8Collect the polished ware and send it to the next process: inspection, decal pasting or packing.

This machine is essential supporting equipment for melamine tableware production lines. It is suitable for A1, A3 and A5 grade melamine molded products: household melamine dinner sets, children's feeding bowls and plates, school canteen tableware, hotel and restaurant melamine ware, airline tableware, promotional gift melamine products and customized brand tableware. It perfectly matches four-column melamine hydraulic presses, melamine preheating machines, automatic weighing machines and the melamine decal paper decoration process.

The main machine is wrapped with stretch film and foam for anti-collision protection. Large machines adopt wooden case or fumigation-free wooden frame packing suitable for sea freight. Spare parts, tool kit and operation manual are packed separately inside the case. We can mark customized shipping marks as per customer requirements. Loading inspection photos can be provided before shipment.