High-Precision Sandwich Strapping Line

Product Overview: High-Precision, Eco-Friendly PP/PET Strapping Production

The Sandwich Packaging Belt Strapping Production Line is a high-performance system designed for manufacturing durable PP (polypropylene) and PET (polyethylene terephthalate) packaging straps. It supports both 100% recycled bottle flakes and virgin materials, making it an eco-friendly and cost-effective solution for packaging needs. With a daily output of 2–4.5T, positioning accuracy of 0.3mm, and compliance with SGS/ISO9001/CE standards, this line ensures consistent strap quality—ideal for heavy-duty packaging applications. Key components include a high-precision extruder, dual stretching units, embossing equipment, and automatic winders, delivering straps with strong tensile strength and uniform dimensions.

Core Features: Precision Engineering & Sustainable Material Use

High-Precision Manufacturing for Consistent Strap Quality

A high-precision screw (75/80/90mm diameter, L:D ratio 30:1/31.5:1) ensures excellent plasticization, resulting in straps with uniform hardness and wear resistance. The CNC cutting system guarantees precise width (9–25mm) and thickness (0.5–1.5mm), minimizing dimensional errors and meeting global industry standards (e.g., ASTM, ISO).

Eco-Friendly Design for Reduced Environmental Impact

The line supports recycled PET/PP flakes, virgin materials, or mixed blends—reducing reliance on new plastic and lowering production costs. This sustainability focus aligns with global environmental regulations (e.g., EU’s Circular Economy Action Plan), making it a preferred choice for eco-conscious manufacturers.

Fully Automated Flow for Efficient Production

The integrated production process—from spiral feeding and material drying to extrusion, stretching, embossing, and winding—requires minimal manual intervention. Dual stretching phases enhance strap tensile strength (up to 1500N), while optional embossing/printing allows customization (e.g., brand logos, batch numbers) for product traceability. The system’s user-friendly interface simplifies operation and real-time monitoring.

Applications: Logistics & Heavy-Duty Packaging Straps

The PP/PET straps produced by this line are widely used in:

• Logistics & Shipping: Securing cartons, pallets, and large cargo (e.g., machinery, furniture) during transportation, with resistance to impact and moisture.

• Construction Materials: Strapping cement bags, steel bars, and wooden boards—ensuring stability during handling and storage.

• Food & Beverage: Packaging bulk food containers (e.g., rice bags, beverage crates) due to non-toxic, food-grade materials.

• Electronics Industry: Securing electronic appliances and components to prevent damage during handling (anti-static options available).

FAQs: Sandwich Packaging Belt Production Insights

Can the line handle 100% recycled PET flakes?

Yes, it is specifically designed to process 100% recycled PET/PP flakes (with pre-drying to remove moisture), along with virgin materials, without compromising strap quality (e.g., tensile strength, flexibility).

What is the accuracy of the strap dimensions?

The line ensures minimal dimensional errors, with strap width controlled within 9–25mm (±0.1mm) and thickness within 0.5–1.5mm (±0.05mm)—meeting strict industry accuracy standards.

Is embossing or printing available for the straps?

Yes, optional embossing and printing modules allow adding texture (for better grip) or text (e.g., brand names, safety warnings) to the straps—supporting brand customization and product identification.

What workshop space is required for installation?

The line requires a workshop area of 35–40m (length) × 10m (width) × 6.5m (height) to accommodate all components (e.g., extruder, stretching oven, winders) and ensure smooth operation.