In PET strapping manufacturing, moisture control and material conveying efficiency are critical to product quality, appearance, and yield rates. Mconvey’s recently commissioned bulk material handling Solutions has effectively addressed challenges in conveying crushed PET materials, including blockage prevention, high-temperature material stability, and moisture reduction to <200ppm. By integrating anti-bridging technology and heat-resistant equipment design, the system ensures consistent material flow even at 160°C, significantly enhancing production reliability and end-product performance. Explore the full case study below.
Key Challenges in PET Strapping Material Handling
- Material Blockage & Bridging: Crushed PET pellets caused frequent conveying system blockages, requiring manual intervention.
- Moisture Control: Initial moisture content of 2000ppm (2%)needed reduction to <200ppm (0.02%) to prevent bubbles and fractures.
- High-Temperature Resistance: Post-drying materials at 160°Cdemanded heat-resistant conveying equipment to avoid component failure.
- Precision dosing for flexible multi-material formulations.
Mconvey’s Bulk Material Handling Solutions for PET Strapping
Feeding & Conveying System Design:
- Jumbo Bag Discharging Station:Equipped with a vibration motorand flapper mechanism to break material clumps and ensure consistent flow.
- Negative Pressure Conveying:Minimized bridging risks during transport to the dryer, even with irregular crushed pellets.
Dehumidification & Drying Process:
- PET Crystallizer + Dehumidification Dryer(two-in-one) achieved <200ppm moisture via continuous crystallization.
- Insulated Drying Silo: Maintained dried pellets moisture-free during standby, preventing reabsorption.
High-Temperature Dosing Technology:
- 4-Component Gravimetric Blenderwith heat-resistant design enabled accurate weighing at 160°C.
- Loss-in-Weight Doser allowed flexible color switching without precision loss.
Innovations in PET Material Handling
- Reliable Material Flow Technology: Combines a vibration motor and flapper mechanism in the jumbo bag station to actively prevent material stagnation.
- Energy-Efficient Drying: Significantly reduces energy consumption traditional methods.
- Industry-First Heat Resistance: Protected pneumatic/electrical components from 160°C heat.
- Smart Formula Switching: Achieved <0.5% dosing errorfor multi-color production.
