Product Overview
Our Stretch Molded Cubic Bags are a game-changer for warehouse and logistics efficiency, designed to solve common pain points like bag bulging, unstable stacking, and wasted storage space. Unlike traditional container bags that lose shape after filling, this product features an innovative inner stretching rib design—a series of molded plastic ribs that stretch and lock into place when filled, creating a rigid, cubic structure. This ensures the bag remains upright, straight, and uniformly shaped, even under high pressure (up to 1800kg load). Crafted from high-density polyethylene (HDPE) with a stretch-molded outer layer, it’s lightweight yet sturdy, making it ideal for industries prioritizing space optimization, fast handling, and damage-free transportation (e.g., food, pharmaceuticals, chemicals).
Scenario-Based Solutions
Food & Beverage Bulk Storage
Food manufacturers storing sugar, salt, or cereal grains often struggle with bag bulging—leading to uneven stacking and increased risk of contamination (from bag collapse). Our Stretch Molded Cubic Bag’s rigid cubic shape allows for precise stacking (up to 8 layers) without tilting, maximizing warehouse rack space by 30% compared to traditional bags. The smooth outer surface also prevents dust buildup, making it easy to clean—critical for complying with food safety standards (e.g., FDA, HACCP).
Pharmaceutical & Fine Chemical Logistics
Pharmaceutical companies shipping powdered active pharmaceutical ingredients (APIs) or fine chemicals need packaging that minimizes product movement (to avoid segregation) and maintains sterility. Our bag’s inner stretching ribs lock the contents in place, reducing particle shifting during transit. The cubic shape also fits perfectly into standard shipping containers (20ft/40ft), eliminating gaps that cause bags to shift—protecting delicate products from damage and ensuring regulatory compliance (e.g., GDP for pharmaceutical logistics).
E-Commerce & Third-Party Logistics (3PL)
3PL providers handling bulk consumer goods (e.g., pet food, laundry detergent powder) need packaging that speeds up order fulfillment and reduces storage costs. Our Stretch Molded Cubic Bag’s uniform shape allows for automated picking (via conveyor belts or robotic arms) and efficient palletizing—cutting handling time by 25%. It also weighs 15% less than traditional cubic bags, lowering shipping costs for high-volume orders.
Key Product Features
• Inner Stretching Rib Design: Molded HDPE ribs stretch to 120% of their original length when filled, locking into a rigid cubic structure that prevents bulging and tilting.
• Space Optimization: Uniform cubic shape (width/height/depth ratio 1:1:1.2) fits standard pallets and containers, increasing storage capacity by 30% vs. traditional bags.
• Stacking Stability: Withstands stacking up to 8 layers (tested at 1800kg total load) without collapsing, thanks to reinforced top/bottom panels.
• Fast Filling & Emptying: Smooth inner surface and wide spout top allow for 20% faster filling (vs. standard bags); bottom discharge spout ensures complete emptying (no product residue).
Detailed Product Specifications
• Material: Stretch-molded HDPE outer layer (1.2mm thickness) + LDPE inner liner (0.8mm thickness); food-grade variants meet FDA 21 CFR Part 177.
• Load Capacity: SWL 800kg, 1000kg, 1200kg, 1500kg; Safety factor 5:1 (complies with ISO 21898).
• Cubic Dimensions: Standard sizes: 600x600x720mm, 800x800x960mm, 1000x1000x1200mm (custom sizes available).
• Stretching Rib Performance: Ribs stretch from 50mm to 60mm (120% elongation) at full load; retain shape for 5+ years in storage.
• Closure Options: Spout top (diameter 150mm, for automated filling) or duffle top (with drawstring); Bottom discharge spout (diameter 120mm, with valve).
• Compliance: ISO 21898, FDA, HACCP, and EU REACH (for chemical-grade variants).
Customization Services
We offer flexible customization to align with your logistics and product needs:
• Cubic Dimensions: Tailor width, height, and depth to fit your pallets (e.g., 700x700x840mm for European standard pallets) or shipping containers.
• Material Upgrades: Add UV inhibitors for outdoor storage (e.g., agricultural products) or anti-static coating for electronic components (e.g., carbon black powder).
• Liner Options: Choose between PE liners (standard) or aluminum foil liners (for moisture-sensitive products like coffee beans or vitamins).
• Smart Features: Integrate pressure sensors to monitor load weight or QR codes for real-time tracking (via logistics management software).
• Branding: Print company logos, barcodes, or handling instructions (e.g., “Stack Max 8 Layers”) using high-resolution flexographic printing (up to 6 colors).
