1.Introduction
A central feeding system is an automated material supply solution widely used in plastic processing industries such as injection molding, extrusion, blow molding, and film production. Instead of placing individual hoppers and loaders on each machine, this system uses a centralized vacuum network to deliver raw materials from a main storage point to each processing machine, improving efficiency and consistency.
「Learn how it works and whether it’s right for your factory.」
2.How Does a Central Feeding System Work?
A central feeding system typically includes a main control unit, vacuum pumps, material receivers, stainless steel pipelines, and storage bins or silos. Here is how it works:
- Raw material is stored in central silos or bins.
- Vacuum pumps generate suction.
- Materials are drawn through stainless pipelines to individual material receivers installed on each machine.
- A PLC control system automatically manages timing, switching, and material flow.
This setup eliminates manual handling and ensures continuous and contamination-free feeding.
3.Components of a Central Feeding System
Central Control Unit (PLC + Touch Panel): Controls the entire feeding process.
Vacuum Pumps: Generate the vacuum pressure needed for material conveying.
Material Receivers: Installed on each machine to receive and buffer materials.
Pipes & Valves: Stainless steel pipelines ensure clean, low-friction transportation.
Filters: Prevent dust and material blockages.
Material Storage Units: Silos or bins where raw materials are loaded.
4.Key Benefits for Injection Molding
Stable Material Flow: Keeps production consistent.
Improved Cleanliness: Prevents dust and contamination in the workshop.
Labor Cost Savings: Reduces need for manual loading.
Space Efficiency: No clutter around machines.
Higher Automation: Can integrate with ERP/MES systems.
👉 Want to explore the benefits in more detail? Read the full article on the top 5 benefits of central feeding systems.
5.Industry Applications
Injection Molding: Automotive parts, consumer goods, sanitary ware.
Extrusion: Plastic sheets, films, pipe and battery separator production.
Blow Molding: Bottles, tanks, containers.
PET Bottle Preform Manufacturing
6. Case Study: Sheet Extrusion Plant in Dubai
One of our clients in Dubai produces PP/PS/PET sheets for the food packaging industry. Before using a central feeding system, they faced high labor costs and inconsistent material quality. After implementing our solution:
- Labor costs reduced by 40%
- Feeding accuracy improved to ±0.5%
- Machine downtime decreased significantly
7. Installation Process Overview
- Initial Assessment: Factory layout, machine quantity, material type.
- System Proposal: Customized central feeding plan.
- Installation: Pipeline layout, vacuum units, receivers.
- Testing & Training: Trial runs and employee training.
📐 Need help with layout design? See our full step-by-step layout guide for central feeding systems.
8. Maintenance & Troubleshooting
- Regularly clean filters.
- Check and maintain vacuum pumps.
- Inspect pipelines for blockages or leaks.
- Back up control system software periodically.
9. Cost & ROI Analysis
While the initial investment for a central feeding system is higher than individual machines, the long-term savings are substantial:
- Payback Period: Usually within 12-18 months
- Labor Reduction: Up to 60%
- Material Waste Reduction: Up to 15%
- Improved Product Consistency
10. FAQs
Q: Is a central feeding system suitable for small factories?
A: Yes. Modular systems are available for 2-3 machines.
Q: How long does installation take?
A: Typically between 7-15 days depending on scale.
Q: Can it be integrated with our existing injection machines?
A: Absolutely. Most systems are compatible with standard machines.
11. Why Choose HENGJU Machinery?
- Over 10 years of experience in plastic automation.
- Gravimetric control accuracy: ±0.5%
- Free layout design service.
- On-site training and after-sales support.
- Systems installed in 15+ countries.
12. Call to Action
Ready to upgrade your material feeding system?
✉Request a Free Layout Plan
📋 Download Technical Brochure
Contact now
Email: Jenny@gdhengju.com
