Client Background
Our client is a leading PET strap manufacturer based in São Paulo, Brazil, with over 15 years of experience in the packaging industry. The company supplies high-quality PET strapping to agricultural exporters, construction material producers, and logistics firms across South America. With an annual production capacity of 3,000 tons, they faced mounting pressure from rising electricity costs and increasing competition from Asian suppliers.
The Challenge
Brazil's industrial electricity rates had surged by over 40% in three years, directly impacting the client's profit margins. Their existing extrusion line, sourced from a local equipment supplier, consumed approximately 280 kWh per ton of PET strap produced. Additionally, inconsistent melt temperature control resulted in frequent production stoppages and an average scrap rate of 6.8%, translating to nearly 200 tons of material waste annually.
The client's key requirements were clear:
- Energy Efficiency: Reduce energy consumption per ton by at least 25% to restore competitive margins
- Production Stability: Minimize unplanned downtime caused by temperature fluctuations
- Output Capacity: Increase daily throughput from 2.5 tons to at least 3.5 tons per line
United WIN's Solution
After a thorough on-site assessment and video conference with the client's engineering team, CHANGZHOU UNITED WIN PACK CO.,LTD recommended the Precise Calibration PET Strap Extrusion Machine with Low Energy Consumption and Uniform Thickness, configured as follows:
| Component | Specification | Benefit |
|---|
| Screw & Barrel | Custom-designed 90mm L/D 33:1 with bi-metallic coating | Superior melt homogeneity, 22% faster plasticizing |
| Heating System | Infrared ceramic heaters with nano-insulation layers | 28% lower heat loss compared to conventional mica heaters |
| Drive Motor | IE4-class super-premium efficiency AC motor with VFD | 15% energy savings at partial load operation |
| Calibration Unit | Precision laser-controlled die gap with real-time feedback | ±0.03mm thickness tolerance across entire strap width |
| Control System | Siemens S7-1500 PLC with energy monitoring dashboard | Real-time kWh/ton tracking, predictive maintenance alerts |
Implementation & Results
The machine was installed and commissioned within 18 days, including operator training. After three months of continuous operation, the client reported the following measurable outcomes:
| KPI | Before | After | Improvement |
|---|
| Energy Consumption | 280 kWh/ton | 182 kWh/ton | ↓ 35% |
| Daily Output | 2.5 tons/day | 3.8 tons/day | ↑ 52% |
| Scrap Rate | 6.8% | 2.1% | ↓ 69% |
| Annual Electrical Cost | $168,000 | $109,200 | ↓ $58,800 |
| Thickness Tolerance | ±0.12mm | ±0.03mm | 4* precision gain |
Client Testimonial
"United WIN's PET strap extrusion machine exceeded every expectation. The 35% energy reduction alone delivered ROI within 11 months. Our downstream customers have also praised the improved strap uniformity, which runs flawlessly in their automated strapping systems." — Production Director, Brazilian PET Strap Manufacturer
Conclusion
This case demonstrates how CHANGZHOU UNITED WIN PACK CO.,LTD's engineering expertise in low-energy extrusion technology directly addresses the pain points of mid-to-large-scale PET strap manufacturers operating in high-cost energy markets. The combination of infrared ceramic heating, IE4 motor efficiency, and precision PLC control delivers not only immediate cost savings but also long-term competitive advantages in product quality and production reliability.
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