PP Strap Extrusion Line Supplliers In Salvador

Strap Extrusion Line – Semi Coating for Medium-Duty Industrial Strapping

Manufactured for dependable industrial use, the Strap Extrusion Line – Semi Coating is engineered to produce high-strength PET or PP straps with a semi-coated finish. These products are widely used in commercial and industrial applications, especially in packaging units, logistics facilities, construction material bundling, and warehouse operations. The semi-coated surface adds controlled grip and friction to the straps, enabling secure holding without compromising flexibility or feeding performance in strapping tools.

Precision Manufacturing Process

This extrusion line operates through a stepwise process involving drying, melting, filtration, die extrusion, quenching, orientation, annealing, embossing, semi-coating, and final winding. The raw polymer (typically PET flakes or virgin PP granules) is first dried to remove moisture content, then melted and passed through a T-die or flat die to form straps. The semi coating is applied post-embossing using a precision-coating roller or spray system that adds a thin, textured layer on one side of the strap.

This coating enhances friction characteristics where required, such as in load securing, while keeping the reverse side smooth enough for automatic machine compatibility. The result is a versatile strap that works with both manual tensioners and high-speed packaging machines.

Applications in Medium- to Heavy-Duty Strapping

These products are used in industrial applications where mid-range tension and load stability are necessary. Ideal for securing cartons, timber packs, construction panels, textile bundles, metal sheets, and palletized goods, semi-coated straps combine the advantages of frictional stability with smooth operability.

The semi-coated strap is especially useful for clients who require additional hold during storage and transit, but without the abrasiveness of full coating, which can sometimes interfere with machine feeding. This makes the strap highly reliable for automated lines in the beverage, food processing, cement, and furniture industries.

Flexible Configuration and Customization

The Strap Extrusion Line – Semi Coating is manufactured in different capacities depending on the number of straps and final strap sizes required. Options are available for single-line or twin-line output, with customizable strap widths ranging from 6 mm to 19 mm. Thickness can also be configured depending on tensile strength and elongation requirements.

Clients can request optional accessories such as automatic winder changers, online printing systems for branding, and dosing systems for color or UV additives. The semi-coating unit itself can be configured for spray, roll-on, or blade-assisted coating, depending on the type of strap and desired texture.

Durability, Control, and Output Efficiency

All line components are manufactured using treated metals and corrosion-resistant surfaces, ensuring uninterrupted production even in humid or dusty environments. The quenching bath, rollers, and stretching units are aligned with precision to prevent curling or edge damage during processing.

The extrusion line delivers consistent output over multiple shifts with minimal operator intervention. Maintenance is simplified with modular components, quick-access doors, and sensor-driven alerts for proactive servicing. These systems are built to operate continuously with high yield and low energy consumption.

Industry-Standard Performance with Enhanced Strap Properties

Semi Coating offers an effective middle ground between standard smooth straps and fully coated alternatives.

This manufacturing equipment is essential for companies looking to produce versatile, high-quality strapping material that meets the evolving needs of automated and manual packaging systems alike.