Centralized Material Conveying System
Centralized Material Conveying System
Multiple domestic factories for bidding. Free promotion. Price to be negotiated between winning bidder and buyer.
Please provide below information for posting:
- Model or functional requirements; 2. Type of conveyed raw material; 3. Number of terminal machines; 4. Conveying capacity; 5. Purchase quantity
Main Types
1. Classification by Conveying Mode
Negative‑Pressure (Vacuum) Conveying System: Vacuum pump generates negative pressure inside pipelines to suck raw materials from multiple scattered feeding points to collecting hoppers. Features good sealing performance and zero dust leakage. Suitable for feeding stations or conditions collecting materials from multiple locations.
Positive‑Pressure Conveying System: Roots blower delivers stable pressure to realize long‑distance & high‑volume conveying; maximum conveying distance reaches 50 m. Ideal for layouts with long distance between raw‑material silos and workshop.
Hybrid Conveying System: Combines positive‑pressure and negative‑pressure modes. Switch flexibly according to material property and conveying distance, incorporating merits of both solutions.
2. Classification by System Scale
Modular Small‑Scale System: For small workshops with less than 5 injection molding machines. Adopts standardized modular design with 20 % expansion margin, balancing practicality and cost‑performance.
Standard Centralized System: For medium‑sized workshops with 5‑10 injection molding machines. Equipped with properly‑sized Roots blower and matched‑diameter pipelines to realize simultaneous feeding for multiple machines.
Intelligent Large‑Scale System: For large‑scale workshops with ≥10 injection molding machines. Supports multi‑machine linkage and 24‑hour non‑stop feeding. Automated control system enables real‑time raw‑material consumption monitoring & precise distribution http://www.dggaosii.com/News-44000.html.
3. Classification by Control Mode
PLC Control System: Programmable logic controller as core unit. High stability and strong anti‑interference capability, suitable for most conventional injection‑molding workshops.
SCADA/DCS Control System: Host‑computer monitoring function available. Connectable to MES/ERP systems for production‑data traceability, remote operation & maintenance and intelligent decision‑making. Suitable for large‑scale smart factories.
Core Technical Parameters
表格
| Parameter Category | Reference Index | Description |
|---|---|---|
| Conveying Capacity | Number of served machines per system:12‑20 unitsMax conveying distance:50‑800 mMax throughput:150 t/h | Larger‑size systems support more terminal machines |
| Conveying Accuracy | Raw‑material conveying tolerance: ≤±0.5 %Dosing accuracy:0.2%‑0.5 % | Affects consistency of finished‑product quality |
| Drying Performance | Dew point: ≤‑40 ℃ (max ‑65 ℃)Moisture content: ≤0.02 % | Critical for moisture‑absorbing materials such as PA, PC |
| Energy‑Saving Index | Comprehensive energy saving:30‑50 %Raw‑material loss rate:0.8‑3 % | Superior to discrete single‑machine feeding |
| Control Precision | Pressure fluctuation: ≤3 %Command latency:＜0.1 s | Determines feeding stability |
| Environmental Index | Dust concentration: ≤10 mg/m³Noise: ≤75dB(A) | Meets clean‑room requirements |
Selection Guidelines
- Define system specification according to production scale ‑ Small workshop (＜5 injection machines): Select modular small‑scale system, reserve 20 % expansion space to avoid over‑investment. ‑ Medium workshop (5‑10 injection machines): Adopt standard centralized system; focus on matching Roots‑blower air volume and pipe diameter. ‑ Large workshop (≥10 injection machines): Deploy intelligent large‑scale system supporting multi‑machine linkage and MES interconnection.
- Configure functions according to raw‑material characteristics ‑ General‑purpose plastics (PP, PE): Conventional negative‑pressure conveying meets requirements. ‑ Hygroscopic materials (PA66, PBT, PC): Molecular‑sieve dehumidifying‑drying module is mandatory to guarantee dew point ≤‑40 ℃ and prevent voids & silver streaks. ‑ Multi‑material / multi‑color production: Adopt "one‑machine‑one‑pipe" independent‑pipeline design, realize material change‑over within 5 min and avoid cross‑contamination.
- Evaluate quality of core components ‑ Blower: Prioritize Roots blower; select blower with extra 15 % air‑volume margin for stable long‑term operation http://www.dggaosii.com/News-44000.html. ‑ Pipeline: Wear‑resistant alloy pipes with quick‑disconnect joints for easy maintenance. ‑ Controller: Industrial‑grade PLC such as Siemens / Mitsubishi, resistant to high‑temperature & dusty workshop environment https://kfjxss.com/index.php?s=/Show/index/cid/99/id/258.html. ‑ Sensors: Brands such as Balluff and Omron to guarantee accurate level & pressure detection.
- Assess intelligence level ‑ Support low‑material pre‑alarm, pipe‑blockage alarm and raw‑material consumption traceability. ‑ Compatible with Modbus TCP, PROFIBUS protocols for MES/ERP connection. ‑ Remote‑operation‑and‑maintenance function reduces on‑site maintenance frequency by 80 %.
- Balance environmental‑protection & energy‑saving performance ‑ System with automatic back‑blow dust‑collector to keep dust concentration ≤10 mg/m³. ‑ Prefer frequency‑conversion‑equipped units for 30‑50 % energy saving. ‑ Noise controlled within ≤75dB(A) to satisfy workshop environmental‑protection standards.
Participation Process
Manufacturers: Contact supplier service for supply registration.
Buyers: Click group‑purchase or contact procurement service to submit requirements. The platform filters suppliers from database or releases bidding based on aggregated demands. Buyers select competitive suppliers and sign sales contracts.
