300t Clamping Force Melamine Crockery Machine with PLC Control and
Precision Hydraulic System for Tableware Production
Dongxin Melamine Crockery Machine is a heavy-duty automatic hydraulic compression
molding press specifically engineered for manufacturing
high-quality melamine tableware. Available in 200-ton, 250-ton,
300-ton, and 350-ton clamping force configurations, this
PLC-controlled pressing machine transforms melamine molding
compound (MMC), urea molding compound (UMC), and bamboo fiber
materials into durable, food-safe dinnerware including plates,
bowls, cups, spoons, and trays.
With Taiwan-upgraded hydraulic technology and precision-engineered
casting components, Dongxin machines deliver stable vertical
pressure up to 210 kg/cm², ensuring perfect mold filling and
eliminating common defects like insufficient curing, burrs, or
dimensional inconsistencies.

Technical Specifications
Key Features & Engineering Advantages
Four-Column High-Rigidity Frame Structure
Constructed from Grade 50 nodular cast iron (ductile iron) with
heat-treated tension columns (Ø90mm-Ø120mm), the Dongxin press
frame withstands high off-center loads without deformation. This
heavy-duty construction ensures 15+ years service life,
significantly outperforming standard cast iron alternatives.
Precision Hydraulic System with Proportional Control
- 200-250 ton models: High/low-pressure loop system with smooth,
noise-free operation
- 300-350 ton models: Yuken double proportional valve (Japan)
enabling infinite adjustment of speed and pressure during pressing
cycle
- Maximum air release frequency: Up to 99 times for complete
degassing, preventing bubbles and ensuring dense, strong tableware
Intelligent PLC Control & HMI Interface
- Delta PLC options with 7-inch color touchscreen
- 100+ product formulas storage capacity for quick mold changeover
- Three-level permission management: Operator, Engineer,
Administrator
- Real-time monitoring: Temperature, pressure, cycle time, production
count
- Fault diagnosis: Automatic alarm system with troubleshooting
guidance
Advanced Heating System for Optimal Curing
- Electric heating plates made from 45# steel with chrome plating
- Temperature range: Room temperature to 180°C (adjustable per
material specification)
- Uniform heat distribution: Prevents hot spots that cause warping or
incomplete curing
- Fast preheating: Reduces startup time and energy consumption
Safety & Automation Features
- Photoelectric safety grating: Protects operators during mold
closing
- Emergency stop buttons: Multiple locations for immediate shutdown
- Mold protection: Slow-speed mold closing initially, then high-speed
synchronization to prevent damage
- Automatic ejection: Ensures smooth product removal without manual
intervention
