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Truly Endless T10.5-934.5mm Silicone Coated VFFS Drawdown Belts

Truly Endless T10.5-934.5mm Silicone Coated VFFS Drawdown Belts

In the high-stakes environment of Vertical Form Fill Seal (VFFS) packaging, standard off-the-shelf timing belts often fall short. When a packaging line demands high-speed indexing, continuous positional accuracy, and complete resistance to heat radiation, standard 10(T10)mm pitches can introduce subtle micro-slippage over millions of cycles.

Enter the highly specialized T10.5-934.5mm Truly Endless Silicone Coated Timing Belt—a proprietary geometry engineered specifically for advanced European packaging machinery lines (such as premium Bosch and specialized high-speed bagging systems).

Manufactured using seamless No-Gap Reverse Forming Technology, this belt represents the highest echelon of B2B drive component engineering.

Introduction

Introduction

Manufactured using seamless No-Gap Reverse Forming Technology, this belt represents the highest echelon of B2B drive component engineering.

Technical Parameter	Specification Data
Product Specification Code	T10.5-934.5
Tooth Pitch	10.5mm(Proprietary Synchronous Geometry)
Total Pitch Length	934.5mm
Exact Tooth Count ($z$)	89 Teeth
Base Core Material	Wear-resistant Thermoplastic Polyurethane (TPU)
Tensile Reinforcement	High-flexibility, multi-strand Steel or Aramid (Kevlar®) cords
Coating Layer	Molecularly fused Liquid Silicone (No Glue / No Joints)
Coating Hardness Options	40 Shore A to 60 Shore A (High-friction elastic compound)
Temperature Envelope	Stable from -50°C up to 220°C

During rapid start-stop cycles on a VFFS machine, high-inertia film pulling exerts intense linear torque on the belt teeth. A standard 10mm pitch has less root mass per tooth. The 10.5mm configuration expands the tooth base and land area slightly, distributing the shear stress evenly across the 89 teeth. This ensures absolute mechanical synchronization, eliminating timing drift and preventing the belt from jumping teeth on high-cadence servo pulleys.

Performance Architecture of Truly Endless Belts

1.Truly Endless Flex Integrity：Zero Joins / Zero Seams。

Unlike spliced or open-ended belts welded together with a weak joint, a truly endless belt core is molded as a continuous loop of multi-strand steel or aramid tensile cord. It possesses uniform tensile strength across every single millimeter of its 934.5mm length.

2.Molecular Silicone Integration：No-Gap Reverse Forming。

Instead of using standard volatile adhesives that dry out near heat-sealing jaws, premium liquid silicone is vulcanized directly onto the polyurethane base compound during the primary molding cycle. There are no gaps or adhesive lines to crack, split, or delaminate.

3.Flush CNC Vacuum Tooling：Precision Air Extraction。

Because the structural matrix is a single, homogeneous block, our CNC machining centers can pierce customized vacuum holes and back slots through the belt without tearing the backing away from the teeth, ensuring clean, continuous suction.

Critical Machine Benefits for Plant Engineers

1. Zero Vacuum Drop for Perfect Bag Registration

For vacuum-assisted draw-down systems, any seam, bump, or splice gap in the belt backing breaks the airtight seal against the packaging film. This causes sudden vacuum drops, resulting in film slippage and inconsistent bag lengths. The seamless, reverse-formed silicone face guarantees a constant, hermetic seal against gloss, matte, or laminated film structures.

2. High Thermal Resilience Near Sealing Jaws

VFFS film feed mechanisms operate directly adjacent to vertical and horizontal heat-sealing bars. Standard rubber or PVC coatings quickly bake, harden, glaze over, and lose their grip under this constant radiant heat. Our specialized silicone formulation thrives in high-heat environments, maintaining its soft elasticity and high-coefficient grip up to 200°C (392°F).

3. Non-Marking, Contamination-Free Conveying

Chemically inert and oil-free, the premium silicone layer transfers no pigment, residue, or structural dust to the packaging material. Whether you utilize industrial red, safety blue, or high-contrast yellow silicone, the surface remains pristine, preserving food safety and pharmaceutical compliance.

Direct Factory Replacement from YONGHANG

Finding an exact replacement for proprietary European packaging machinery parameters like the T10.5-934.5mm can be a procurement bottleneck. At YONGHANG (Yonghang Transmission Belt Factory), we control the entire production line—from the initial tooth core molding to the secondary CNC drilling and slotting.

We provide precise drop-in replacements configured to your exact machinery blueprints, allowing your plant to bypass long OEM lead times and high markup costs while upgrading to a 100% delamination-proof component.