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| Parameter | Specification / B2B Capability |
| Material Structure | 3-Layer (Single Wall) / 5-Layer (Double Wall) / 7-Layer (Triple Wall) |
| Parameter | Specification / B2B Capability |
| Material Structure | 3-Layer (Single Wall) / 5-Layer (Double Wall) / 7-Layer (Triple Wall) |
| Flute Types | A, B, C, E, F Flute, BC Flute, EB Flute (Custom Combinations) |
| Paper Material | Premium Kraft Liner, Testliner, Recycled Paper (120 - 250 GSM) |
| Box Styles | RSC (FEFCO 0201), Die-Cut Boxes, Telescope Boxes, Folder Boxes |
| Certifications | FSC CoC Certified, ISO 9001:2015, ISO 14001, RoHS, REACH |
| Printing Options | Water-based Flexographic Printing, Offset Printing, UV Varnish |
| MOQ | 500 pcs for custom size/printing (Stock sizes available from 100 pcs) |
| Sample Lead Time | 2–3 Days for plain sample; 3–5 Days for printed custom sample |
| Bulk Delivery Time | 7–12 Days after artwork approval |
| Parameter Category | Standard Specification Options | Customization Range |
| Flute Profile (瓦楞楞型) | B-Flute (3mm) - Excellent compression & print quality | Custom flute combination (A, B, C, E, F, BC, EB) based on load capacity requirements. |
| C-Flute (4mm) - High stacking strength & cushioning | ||
| E-Flute (1.5mm) - Superior surface smoothness for retail | ||
| BC-Flute (7mm Double Wall) - Heavy industrial shipping | ||
| Bursting Strength (BST) | 11.0 kgf/cm² – 25.0 kgf/cm² (150 – 350 PSI) | Customizable based on cargo weight (up to 100kg+). |
| Edge Crush Test (ECT) | 32 ECT (Standard) / 44 ECT (Heavy Duty) / 48–51 ECT (Extra Heavy Duty) | Customized kraft paper GSM assignment to match ISTA 1A/3A transit tests. |
| Paper GSM Range | Outer Liner: 140 - 250 GSM Kraft Paper | 100% Virgin Kraft, Recycled Kraft, Kraftliner, White Top Liner. |
| Medium/Fluting: 110 - 180 GSM Corrugated Medium | ||
| Inner Liner: 120 - 200 GSM Testliner / Kraft | ||
| Moisture Resistance | Standard Water-resistant coating / Waterproof Wax Coating available | Anti-moisture varnish for sea freight and humid storage environments. |
| Surface Finishing | Matte/Gloss Lamination, Aqueous Coating, Spot UV, Foil Stamping | Eco-friendly water-based varnishes & food-grade coatings. |
| Color & Printing | Up to 6-color Flexo Printing, High-definition CMYK Offset Printing | Eco-friendly soy-based inks; Pantone color matching. |
Material & Structural Engineering
1. 3-Ply (Single Wall) vs 5-Ply (Double Wall) Corrugated Structure
3-Layer Single Wall Corrugated Box :
Structure: Outer Liner + Fluting Medium + Inner Liner.
Best for: Light-to-medium weight products (E-commerce shipping, express parcels, apparel, consumer goods up to 15 kg).
Advantage: Cost-effective, lightweight to save shipping costs, highly flexible.
5-Layer Double Wall Corrugated Box :
Structure: Outer Liner + Fluting Medium 1 + Middle Liner + Fluting Medium 2 + Inner Liner.
Best for: Heavy-duty export shipping, bulky electronics, machinery parts, fragile glassware, and long-haul warehousing (up to 40+ kg).
Advantage: Maximum puncture resistance, superior vertical compression strength for multi-layer stacking during ocean freight.
2. High-Grade Sustainable Kraft Paper Selection
Virgin Kraft Liner: Made from 100% natural wood pulp, offering maximum burst strength, tear resistance, and superior moisture defense.
Testliner (Recycled): High-quality recycled fibers providing an eco-friendly and cost-optimized solution for standard outer packaging.
Bleached White Top Liner: Premium white surface ideal for high-definition full-color logo printing and high-end brand packaging.
Industrial Application Fields
E-Commerce & Retail Fulfillment :
Designed for Amazon FBA standards, FedEx/UPS/DHL shipping compliance. Tear-strip and self-adhesive options available.
Electronics & Household Appliances :
High-density BC/EB flute boxes paired with anti-static interior pads to protect high-value electronic components during transit.
Industrial Goods & Machinery Parts :
Heavy-duty 5-ply/7-ply corrugated cartons with high ECT ratings replacing wooden crates to lower air & ocean shipping costs.
Food, Beverage & Fresh Produce:
Ventilated designs with water-resistant & oil-proof inner coatings for cold-chain transportation and fruit/vegetable export.
Logistics, Moving & Storage :
Standardized FEFCO 0201 RSC boxes engineered for optimal pallet usage (1200x1000mm and 1200x800mm standard pallets).
Customization & Manufacturing Process
Quality Assurance & Certifications
In-House Testing Laboratory :
Edge Crush Test (ECT) Machine: Verifies vertical stacking capacity.
Bursting Strength Tester: Ensures the box won't burst under pressure.
Drop Tester (ISTA 1A): Simulates rough handling during express courier delivery.
Moisture Content Analyzer: Ensures wood fiber moisture remains between 8%–12% to prevent mold during ocean transport.
Global Certifications:
FSC Certified: Responsible forestry sourcing to help brands meet European & US ESG standards.
ISO 9001:2015: Certified Quality Management System.
RoHS & REACH Compliant: Non-toxic water-based inks and glue, safe for international packaging.
Packaging & Container Loading Efficiency
Flat-Packed Delivery : All cartons are packed flat in bundles wrapped with waterproof stretch film, reducing volumetric weight by up to 70%.
Palletized Shipping : Custom wood or paper pallets fitted with corner protectors and steel/plastic strapping for easy forklift unloading at target warehouses.
Container Space Calculation: Our team uses 3D container loading software to ensure maximum CBM utilization in 20GP, 40GP, and 40HQ containers.
FAQ
Q1: What is the difference between Single Wall (3-ply) and Double Wall (5-ply) corrugated boxes?
A: Single wall boxes (3-ply) consist of one layer of corrugated fluting sandwiched between two linerboards, perfect for items up to 15 kg. Double wall boxes (5-ply) feature two layers of fluting and three linerboards, offering significantly higher bursting strength and compression resistance for heavy-duty export shipping up to 40+ kg.
Q2: How do I determine the right Edge Crush Test (ECT) rating for my corrugated boxes?
A: ECT measures the box’s stacking strength. For standard e-commerce shipping, 32 ECT is sufficient. For heavy industrial goods or multi-tier warehouse pallet stacking, we recommend 44 ECT or 48 ECT double-wall cartons to prevent box collapsing.
Q3: What is your Minimum Order Quantity (MOQ) for custom printed cardboard boxes?
A: Our MOQ for custom size and printed corrugated cartons is 500 pieces. For standard plain/stock size cartons, the MOQ starts at 100 pieces.
Q4: Can you provide free samples before bulk ordering?
A: Yes, we provide free plain unprinted samples (freight collect) for quality and fitting evaluation. For custom printed samples with your exact artwork, a small sampling fee applies, which is 100% refundable upon bulk order placement.
Q5: Are your paper materials FSC certified and eco-friendly?
A: Yes, all our raw kraft papers are sourced from FSC-certified mills. Our boxes are 100% recyclable, biodegradable, and printed using environmentally friendly water-based soy inks.
Q6: What printing methods do you support for outer packaging cartons?
A: We offer cost-effective Flexographic printing (ideal for standard outer boxes, logos, and shipping marks) and high-resolution Offset printing (ideal for detailed graphics, CMYK color accuracy, and retail packaging).
Q7: What are your shipping terms and lead times?
A: Production lead time is typically 7 to 12 days after sample and artwork approval. We support EXW, FOB, CFR, CIF, and DDP (Delivered Duty Paid directly to your warehouse) shipping options by sea, air, or rail.