What Is a Central Feeding System?
A central feeding system is a fully automated material handling solution designed for plastics processing facilities. It centralizes the storage, drying, conveying, dosing, and distribution of plastic resin — delivering the right material to the right machine at the right time, all controlled from a single interface.
Instead of individual loaders on each machine, a central vacuum pump station pulls resin from bulk storage (silos, bulk bags, or bins) through a sealed piping network to material receivers mounted on each processing machine. This enables 24-hour continuous, unmanned production with significant reductions in labor, energy, and material waste.
Streamline Eco Tech designs and manufactures complete central feeding system solutions for injection molding, blow molding, and extrusion facilities, supporting 10 to 50+ machines from a single central system.
Core System Components
Central Vacuum Pump Station
VFD-controlled multi-pump configuration with automatic standby/recovery. Delivers consistent vacuum pressure across the entire pipeline network while optimizing energy consumption.
Material Receivers
Stainless steel vacuum receivers mounted on each machine, equipped with level sensors for automatic demand-based material delivery. Available in 3L to 60L capacities.
Piping Network
Stainless steel or aluminum pipe system with long-radius bends and quick-disconnect joints. “One machine, one pipe” design prevents cross-contamination and material mixing.
Central Control System
PLC-based central control with touchscreen HMI. Real-time monitoring of material flow, pipeline pressure, alarm status, and machine demand. Supports MES/ERP integration.
Dust Collection & Filtration
Centralized dust extraction with multi-stage filtration. Keeps the production environment clean, prevents material contamination, and complies with workplace air quality standards.
Integrated Drying & Dosing
Optional integration with dehumidifying dryers, gravimetric blenders, and volumetric dosers for a complete material preparation pipeline from storage to machine throat.
How a Central Feeding System Works
Storage
Resin stored in silos, bulk bags, or bins
Vacuum Conveying
Central pump pulls material through sealed pipes
Drying (Optional)
Material passes through dehumidifying dryer
Dosage et mélange
Precise ratio mixing of virgin, color, regrind
Machine Delivery
Receiver on each machine feeds on demand
Key Advantages
70% Labor Reduction
Eliminate manual material handling, bag lifting, and machine-side loading. One operator can manage the entire material supply for 50+ machines from a central control panel.
30-50% Energy Savings
VFD-controlled central pumps use significantly less energy than individual loaders on every machine. Shared infrastructure reduces overall power consumption.
Zero Contamination
Fully sealed pipeline system prevents dust ingress, moisture absorption, and cross-contamination. Material purity is maintained from storage to machine throat.
5-10% Material Savings
Reduced material leakage, dust loss, and spillage. Precise dosing and blending minimize waste. Closed-loop regrind feeding recycles runners and sprues automatically.
24/7 Unmanned Operation
Automatic material replenishment enables continuous production runs without operator intervention. Ideal for lights-out manufacturing and weekend production.
Industry 4.0 Ready
Real-time data monitoring, remote diagnostics, and predictive maintenance alerts. PLC supports OPC UA, Modbus, and MES/ERP system integration for smart factory setups.
Integrated System Solution
A Streamline Eco Tech central feeding system is not just a conveyor — it is a complete, integrated plant-wide material management platform. Our solution covers five interconnected subsystems:
Material Handling System
Vacuum conveying, storage, and distribution
Circulating Water System
Cooling water distribution for molds and equipment
Séchage et déshumidification
Honeycomb/desiccant dryers for hygroscopic resins
Automation Control
PLC central control with MES/ERP integration
Digital Production Floor
Real-time monitoring, data analytics, traceability
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Supported Machines | 10 to 50+ injection/extrusion/blow machines | Scalable modular design |
| Conveying Distance | Up to 200 meters | Depends on pipe diameter and pump capacity |
| Conveying Capacity | 300 to 5,000 kg/h per line | Configurable based on material and distance |
| Pump Type | VFD-controlled roots vacuum pump | Energy-efficient with auto standby |
| Pipe Material | Stainless steel 304 / Aluminum | Food-grade 316 optional |
| Control System | Siemens PLC with 15″ touchscreen HMI | Supports OPC UA, Modbus TCP |
| Material Compatibility | Pellets, granules, regrind, powder | PP, PE, PET, PVC, ABS, PC, PA, PS |
| Filtration | Multi-stage HEPA + pulse-jet cleaning | Automatic filter regeneration |
| Power Supply | 380V/50Hz or 460V/60Hz | Customizable by region |
| Certification | CE, ISO 9001 | UL available upon request |
Applications & Industries
Injection Molding
Multi-machine workshops producing automotive parts, consumer electronics, medical devices, and packaging components.
Extrusion
Pipe, profile, sheet, and film extrusion lines requiring continuous material supply with consistent quality.
Blow Molding
Bottle and container production with multi-material feeding, regrind recycling, and color change capabilities.
Compounding
Precise multi-component dosing for polymer blends, masterbatches, and filled compounds with gravimetric accuracy.
Central Feeding System vs. Individual Machine Loaders
| Comparison | Central Feeding System | Individual Machine Loaders |
|---|---|---|
| Labor | 1 operator for entire plant | 1 loader per machine, manual refill |
| Energy Use | 30-50% lower (shared VFD pump) | Each machine has its own motor |
| Material Waste | 5-10% savings (sealed system) | Higher spillage and dust loss |
| Contamination Risk | Near zero (closed pipeline) | Open hoppers, dust exposure |
| Scalability | Add machines without new loaders | Each new machine needs a loader |
| Data & Monitoring | Centralized real-time monitoring | Isolated, no plant-wide visibility |
| Initial Investment | Higher (infrastructure) | Lower per machine |
| Long-term ROI | 12-24 months typical payback | Higher operating costs over time |
Frequently Asked Questions
How many machines can a central feeding system support?
A single central feeding system can support 10 to 50+ processing machines, depending on pump capacity, pipe layout, and material types. The modular design allows future expansion — additional machines can be added without replacing the central pump station.
Can the system handle multiple materials simultaneously?
Yes. The “one machine, one pipe” design means each machine has a dedicated material line. The central control system manages routing so that different machines can receive different materials (virgin, regrind, masterbatch) at the same time without cross-contamination.
How long does installation take?
Typical installation takes 2-4 weeks depending on plant size and complexity. This includes pipe routing, pump station setup, receiver installation, control panel wiring, and system commissioning. We provide on-site installation supervision and operator training.
Does the system integrate with existing dryers and blenders?
Yes. The central feeding system is designed to work with our dehumidifying dryers, gravimetric blenders, and temperature control units. It can also integrate with most third-party auxiliary equipment via standard industrial communication protocols.
What is the typical return on investment?
Most customers see a 12-24 month payback period through labor savings (70% reduction), energy savings (30-50%), and material waste reduction (5-10%). Facilities running 24/7 production with high material throughput typically see the fastest ROI.
Do you provide custom system design for my factory layout?
Absolutely. Every central feeding system is custom-engineered based on your factory floor plan, machine arrangement, material types, and production volume. We provide 3D layout designs, pipe routing plans, and equipment specifications as part of our turnkey plant planning service.
Ready to Automate Your Material Handling?
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