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This integrated PVC additives weighing dosing machine is matched with pneumatic vacuum conveyor for full extruder lines. It replaces manual chemical additive weighing to eliminate human operation error. It can weigh 5-10 kinds of powder and granular additives like stearic acid and carbon black. With less than 10g batch tolerance, unlimited formula storage, SCADA data analysis and USB export function, it adopts Mettler Toledo sensor and Siemens control system, featuring dust-free closed feeding, labor saving and stable operation.
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In traditional PVC extrusion workshops, all chemical additives including stearic acid, polyethylene wax, titanium dioxide, whitener and carbon black rely on manual weighing and manual feeding. Manual operation easily causes weight deviation, inconsistent PVC product quality, flying powder dust and long-term chemical damage to workers’ respiratory system. To solve all these pain points, our factory independently developed this full-automatic PVC additives weighing and dosing system matched with pneumatic vacuum conveyor.
This complete batching system supports 4 to 10 independent stainless steel bins for different powder and pellet additives. The whole feeding, weighing and conveying process runs inside closed pipelines with matched dust removal equipment, achieving zero dust overflow in production workshops. Equipped with imported Mettler Toledo high-precision weighing sensors and Siemens integrated control system, the machine realizes fully unmanned automatic batching without manual intervention. Operators only need to set production formulas on the touch screen, and the system will complete automatic feeding, metering, data recording and fault alarming automatically.
All production data including daily output, raw material consumption, batch recipe records and breakdown logs can be exported through USB flash drive, which is convenient for factory production management, cost accounting and quality traceability. This machine perfectly matches all types of PVC extruder lines for PVC pipe, profile, sheet and film production, greatly improving batching efficiency and stabilizing finished product quality.
We adopt original imported Mettler Toledo weighing sensors from America, cooperating with optimized bin blanking structure and multi-stage speed feeding design. Slow fine feeding in the final weighing stage ensures the batch tolerance below 10g, meeting high-standard PVC compounding production requirements.
The touch screen records the weight proportion of each additive in different formulas. The system will automatically adjust the rotating speed of feeding motors according to single additive weight: large proportion materials run fast coarse feeding first, then switch to low-speed precise feeding; trace additives adopt slow feeding throughout the whole process to avoid overweighing. High-power feeding motors guarantee stable and smooth blanking without material blockage.
The whole control cabinet adopts full series Siemens electrical parts including PLC, touch screen, relays and switches, with international CE and UL safety certifications. Siemens control system features anti-interference performance, suitable for long-term continuous operation in plastic extrusion workshops with high temperature and dust environment, reducing equipment breakdown frequency.
The system consists of several separate independent 304 stainless steel silo units. All connecting cables between silos and central control cabinet are pre-connected and tested completely before factory delivery. Customers only need to fix silos on the bracket and connect power supply and vacuum conveyor pipelines on site. No complex wiring or program debugging work is needed, saving installation labor and time cost.
The human-machine operation interface uses graphic and symbolic visualization design instead of complicated text codes. Users do not need professional programming knowledge. All production parameters such as formula weight, batch quantity and feeding speed can be directly set on the touch screen. When formula needs to be changed for new PVC products, workers can finish parameter adjustment within 3 minutes without professional engineers.
All material contact parts including storage silos, blanking hoppers and conveying pipelines are made of food-grade 304 stainless steel, anti-corrosion against acidic and alkaline plastic additives, easy to clean and long service life. All electrical spare parts pass CE and UL international certification, and we provide 12-month full machine warranty after shipment.
| Parameter Item | Specification |
|---|---|
| Minimum configurable silo quantity | 4 bins |
| Maximum configurable silo quantity | 10 bins |
| Standard weighing cycle speed | 15kg / 120 seconds |
| Weighing sensor brand | USA METTLER TOLEDO |
| Silo raw material grade | SUS 304 Stainless Steel |
| Single batch weighing tolerance | Less than 10 grams |
| Storage capacity of production formulas | Unlimited groups |
| Main control electrical brand | Siemens (CE & UL certified) |
| Supporting conveying equipment | Pneumatic vacuum conveyor |
| Applicable raw material type | Powder & granular PVC additives |
| Operating control mode | Touch screen automatic control |
| Data export method | USB flash drive export |
The matched SCADA monitoring software is pre-installed on the touch screen of the control cabinet, covering all factory production management demands:
Automatic daily, weekly and monthly production report generation, including total output, single shift output and raw material total consumption;
Permanent storage of all batch recipe data, supporting one-click recall of old formulas;
Real-time equipment failure alarm with specific fault code displayed on screen for quick maintenance;
One-click printing of production records for factory quality inspection archives;
All historical data can be copied to USB for long-term offline storage and production data analysis.
Q1: What kinds of PVC additives can this automatic dosing machine weigh?
A1: The system adapts to all common powder and granular PVC processing additives, including stearic acid, PE wax, calcium carbonate, titanium dioxide, whitener, carbon black, stabilizer, lubricant and toner. It can match 4-10 different additives at the same time according to customer production requirements.
Q2: How accurate is the weighing error of this equipment?
A2: We equip original Mettler Toledo imported sensors, the tolerance per mixing batch is controlled below 10 grams, which far exceeds the precision of manual weighing and keeps consistent formula proportion for each PVC batch.
Q3: Can the machine store multiple different production formulas?
A3: Yes, the system supports unlimited storage of production formulas. When producing different PVC pipes, profiles or sheets, workers can directly call the saved formulas on the touch screen without re-inputting all weight parameters.
Q4: Is the equipment dust-free during operation? Will powder fly all over the workshop?
A4: The whole feeding, weighing and conveying system adopts fully closed pipeline circulation, equipped with independent matched dust collector. No powder overflows during production, keeping the workshop ground and extruder equipment clean all the time.
Q5: What brand of electrical components does this machine adopt? Is there safety certification?
A5: The core control system uses full set Siemens electrical accessories, the weighing sensor is imported METTLER TOLEDO from America. All electrical parts have CE and UL international safety certificates, safe for long-time continuous industrial production.
Q6: How many bins can we choose? What if I need more than 10 silos?
A6: Standard optional silo quantity ranges from 4 bins to 10 bins. If your production line needs more than 10 kinds of additives, our technical team can customize an extended multi-bin automatic batching system according to your raw material types.
Q7: Is installation complicated? Do we need professional electrical engineers for on-site debugging?
A7: Pre-wiring and equipment testing are finished before delivery. Customers only need to fix silos and connect power and vacuum pipelines. Our engineers will send detailed installation video and operation manual, ordinary factory operators can complete installation and debugging independently.
Q8: Can production data be exported for factory cost management?
A8: Yes. The built-in SCADA software records all batch production data, users can insert USB flash drive into the control cabinet to download daily, weekly and monthly consumption and output data for cost calculation and production analysis.
