In high-performance wire and cable manufacturing, especially for high-voltage, medium-voltage, and low-voltage power cables, the choice of take-up and pay-off bobbins directly impacts production efficiency, coil quality, and equipment longevity. The PN800-5000 PN Tablet Strengthen Enhanced Type Machine Bobbin is a premium heavy-duty solution engineered for the most demanding applications. Built with high-strength pressed steel and reinforced “tablet” (plate) flange design, these robust bobbins deliver superior rigidity, exceptional concentricity, and outstanding load-bearing capacity for XLPE insulation, stranding, extrusion, cabling, and armoring lines.
In high-performance wire and cable manufacturing, especially for high-voltage, medium-voltage, and low-voltage power cables, the choice of take-up and pay-off bobbins directly impacts production efficiency, coil quality, and equipment longevity. The PN800-5000 PN Tablet Strengthen Enhanced Type Machine Bobbin (also known as tablet-strengthened enhanced steel bobbin or reinforced flange process reel) is a premium heavy-duty solution engineered for the most demanding applications. Built with high-strength pressed steel and reinforced “tablet” (plate) flange design, these robust bobbins deliver superior rigidity, exceptional concentricity, and outstanding load-bearing capacity for XLPE insulation, stranding, extrusion, cabling, and armoring lines.
1. Primary Applications
The PN800-5000 series is specifically designed for modern high-speed cable production equipment, including:
- High-voltage, medium-voltage, and low-voltage power cable manufacturing
- XLPE insulated cable stranding and extrusion lines
- Large-scale cabling, armoring, and shielding processes
- Heavy-duty take-up and pay-off operations for power cables, submarine cables, and specialty conductors
Their enhanced structural design ensures stable performance under extreme tension and high rotational speeds, making them ideal for both in-process use and finished coil handling in large cable factories.
2. Structural Design & Engineering
These bobbins feature a robust pressed steel construction with tablet-strengthened enhanced flanges for maximum strength and deformation resistance. Key structural elements include:
- Precision-formed pressed steel flanges with internal reinforcement plates
- Heavy-duty barrel and hub assembly for superior concentricity
- Reinforced support ribs and high-strength welded joints
- Smooth, precision-machined surfaces to prevent cable damage and ensure uniform layering
The enhanced “tablet strengthen” design significantly increases flange rigidity compared to standard steel bobbins, allowing safe handling of very large, heavy cable coils without flange distortion.
3. Key Features & Benefits
- Pressed Steel Flanges with Tablet Reinforcement – Exceptional strength and rigidity for heavy-load applications
- Enhanced Load Capacity & Durability – Designed for continuous high-speed operation in XLPE and power cable lines
- Superior Concentricity & Balance – Precision manufacturing reduces vibration and extends machine life
- Versatile Compatibility – Suitable for stranding, extrusion, cabling, and armoring equipment
- Long Service Life – High-quality pressed steel construction withstands years of industrial use
- Full Customization – Dimensions and configurations can be tailored to exact customer requirements
4. Industry Standards & Technical Specifications
PN800-5000 Tablet Strengthen Enhanced Type Machine Bobbins are manufactured in strict accordance with international standards:
- GB4004-83
- JB/T8997.4-1999
- DIN 46395
Or fully customized to client drawings and specifications.
Technical Specifications (representative models):
| Type | d₁ (mm) | d₂ (mm) | d₃ (mm) | d₄ (mm) | d₅ (mm) | e (mm) | L₁ (mm) | L₂ (mm) | V (dm³) |
|---|
| 800 | 800 | 400 | – | – | – | – | 600 | 500 | 188.5 |
| 900 | 900 | 450 | – | – | – | – | 670 | 560 | 267.2 |
| 1000 | 1000 | 500 | – | – | – | – | 750 | 630 | 371.1 |
| 1150 | 1150 | 560 | – | – | – | – | 850 | 710 | 524.6 |
| 1250 | 1250 | 630 | 160 | 80 | 40 | 160 | 950 | 800 | 732.4 |
| 1400 | 1400 | 710 | – | – | – | – | 1060 | 900 | 1029.1 |
| 1600 | 1600 | 800 | – | – | – | – | 1180 | 1000 | 1508.0 |
| 1800 | 1800 | 1000 | 200 | 100 | – | – | 1320 | 1120 | 1970.4 |
| 2000 | 2000 | 1120 | – | – | – | – | 1500 | 1250 | 2695.5 |
| 2240 | 2240 | 1250 | 250 | 125 | 65 | 300 | 1700 | 1400 | 3799.1 |
| 2500 | 2500 | 1500 | – | – | – | – | 1900 | 1600 | 5026.5 |
| 2800 | 2800 | 1800 | 280 | 140 | – | – | 2120 | 1800 | 6503.1 |
| 3150 | 3150 | 1900 | 300 | 160 | – | 500 | 2300 | 2000 | 9915.6 |
Note: Custom sizes up to PN5000 and special surface treatments are available upon request.
5. Why Choose PN800-5000 Tablet Strengthen Enhanced Type Machine Bobbins?
For manufacturers of high-voltage and XLPE cables, these reinforced bobbins offer measurable improvements in operational stability, reduced maintenance, and higher production throughput. The tablet-strengthened flange design prevents common issues like flange bending or cracking, ensuring consistent performance even with the largest cable coils.
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