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High-Performance Silicone Belts for Bag-Making & Hot-Cutting Machinery
YONGHANG In the specialized field of flexible packaging, the Silicone Conveyor Belt serves as a critical component for heat-sealing and high-speed cutting. Engineered from premium-grade silica gel and reinforced with high-tensile fabric or internal ribs, these belts are specifically designed to withstand the rigorous demands of self-sealing film bag machinery and disposable glove production lines.
- Introduction
Introduction
1. Advanced Structural Integrity: The Seamless Advantage
Our silicone belts are manufactured through a precision molding process, resulting in a completely seamless structure. Unlike spliced belts, this continuous design ensures:
Uniform Tension: Consistent stability throughout the entire belt circumference.
Operational Precision: Enhanced accuracy for critical sealing and hot-cutting phases.
Zero Weak Points: Reduced risk of snapping or uneven stretching under high-speed operation.
2. Key Technical Performance Attributes
Exceptional Thermal Stability
Silicone is naturally resilient to extreme temperatures. These belts maintain their physical properties and shape even when subjected to the localized heat required for plastic film welding and hot-cutting processes.
Superior Non-Stick Surface
The inherent low-energy surface of silicone prevents adhesives, molten plastic, and film residues from bonding to the belt. This "self-cleaning" property ensures a smooth flow of materials and minimizes downtime for maintenance.
High Wear Resistance & Elasticity
Despite their flexible and lightweight nature, these belts offer excellent abrasion resistance. The surface remains smooth and free of micro-cracks during high-speed rotations, which is vital for handling delicate, thin-gauge plastic films without causing surface damage.
Chemical & Environmental Inertia
Our silicone compounds are highly resistant to acids, alkalis, and various chemical treatments often found on coated film materials. This chemical stability guarantees a longer service life in diverse manufacturing environments.
3. Customization & Reinforcement Options
Recognizing that different machines require different tensile strengths, we offer versatile configurations:
Pure Silicone Belts: For maximum flexibility and delicate handling.
Reinforced Core Belts: Featuring a high-strength fabric or internal rib core to increase load capacity and prevent stretching.
Color Customization: Standard stock available in Red, White, Black, and Transparent. Bespoke colors can be matched to your specific branding or machinery requirements.
4. Primary Industry Applications
Self-Sealing Bag Machinery: Optimized for precision hot-cutting and reliable sealing.
Disposable Glove Production: Ensuring the smooth transport of thin PE/CPE films.
Heat-Shrink Packaging: Ideal for tunnels where high heat and non-stick properties are mandatory.
Bag Making Machine Conveyor Belt Data Sheet：
| Type | Flat Silicone Belt |
| Color | Red/White/Black/Transparent |
| Material | Silicone |
| Width | ≤1500mm |
| Circumference | ≤4000mm |
| Thickness | 5-6mm |
| Hardness | 60 Shore A |
| Features | Heat Resistant, Good Elasticity, Wear-Resistance |
| Working Temperature | -20 ℃-220 ℃ |
| Processing | Fabric or Rib Reinforced |
FAQ:
Q1: Why is a "Seamless" structure important for bag-making silicone belts?
A: A seamless molded structure is critical because it ensures consistent tension across the entire length of the belt. In high-speed bag-making or glove-making machines, any splice or seam can cause a "jump" or slight vibration, leading to inaccurate cutting or sealing. Our seamless design eliminates these weak points, providing a perfectly smooth surface for delicate film handling.
Q2: What is the maximum temperature these silicone belts can withstand?
A: Our high-performance silicone belts are engineered to operate continuously at temperatures up to 200°C (392°F), with short-term resistance to even higher peaks. This thermal stability is essential for hot-cutting processes where the belt must remain flexible and stable while in close proximity to heated blades or sealing bars.
Q3: How does the "Non-Stick" property benefit my production line?
A: During the heat-sealing of plastic films (PE, PP, or CPE), residue or adhesives can often melt and stick to the conveyor. Our premium silica gel has an inherent low-surface energy, preventing molten plastic from bonding to the belt. This reduces downtime for cleaning, prevents film jams, and ensures the finished bags have a clean, professional edge.
Q4: When should I choose a "Fabric Reinforced" core over a pure silicone belt?
A: * Choose Pure Silicone: For applications requiring maximum elasticity and the gentlest touch on very thin, delicate films.
Choose Fabric/Rib Reinforced: If your machine has a long span between pulleys or handles heavier loads. The reinforcement core (fabric or rib) prevents belt elongation (stretching) and increases tensile strength, ensuring the belt maintains precise timing and tracking over long periods.
Q5: Can these belts handle chemical coatings on plastic films?
A: Yes. Silicone is chemically inert and offers excellent resistance to acids, alkalis, and many industrial solvents. If your bag-making process involves printed films or special chemical coatings, our belts will not degrade or react, ensuring a much longer service life than standard rubber belts.
Q6: Are the colors (Red, White, Transparent, etc.) purely aesthetic?
A: While color can help with branding, it also serves functional purposes:
White/Transparent: Often preferred for food-grade or hygienic environments (like disposable glove production) to easily spot contaminants.
Red: A common industry standard for high-temperature identification.
Black: Frequently used in high-speed lines where carbon-based additives might be used for anti-static properties.
Q7: How do I ensure the belt tracks correctly on my machine?
A: Proper tracking starts with a high-precision belt. Our molded process ensures the belt is perfectly symmetrical. Additionally, we can provide belts with tracking guides (ribs) on the inner surface to lock the belt into the pulley grooves, preventing side-to-side slippage during high-speed operation.
