Large Plastic Bags for Industrial and Bulk Packaging
Large plastic packaging bags are made from high‑quality LLDPE, LDPE, or HDPE. They offer large capacity, high strength, and waterproof/moisture‑proof performance. These bags are widely used for industrial raw materials, bulk goods transport, agricultural storage, construction sites, and logistics distribution centers – suitable for powders, granules, lump materials, and fluffy products. Customization of size, thickness, color, printing, closure type, and reinforced structures is fully supported, meeting export standards and bulk purchasing requirements.
Core Product Advantages
High load strength & tear resistance
Material: Virgin LLDPE / LDPE / HDPE resin
Tensile strength: ≥25 MPa
Thickness range: 50–250 microns (5–25 mil)
Suitable for: 10 kg to 100 kg+ industrial loads
Ideal for sharp, heavy, and irregularly shaped industrial goods.
Moisture & dust protection
100% waterproof polyethylene barrier layer
Prevents moisture damage during ocean shipping
Protects powders, granules, and sensitive materials
Suitable for long‑haul export transport and warehousing.
Fully customizable sizes
Width: Up to 200 cm
Length: Up to 300 cm+
Volume: 50L to 1000L+
Structure options: Flat / Gusseted / Square bottom / Liner bag
Perfectly suited for pallets, containers, and oversized goods.
Bulk shipping cost optimization
Optimized thickness reduces material waste
Large capacity design improves container loading efficiency
Supports bulk loading in 20GP / 40HQ containers
Helps bulk buyers reduce packaging costs by an estimated 15–30%.
Selection Guide & Parameter Tables
1.Specification Selection Guide:
|
Parameter |
Range / Options |
Application Notes |
|
Size (W × L) |
60 cm × 80 cm up to 200 cm × 300 cm+ |
Custom oversized dimensions based on pallet size, container space, and cargo volume |
|
Volume |
50L to 1000L+ |
Customizable – bulk bag alternatives, container liners, etc. |
|
Closure type |
Flat / Heat seal / Tie closure / Self seal / Drawstring |
Flat: for heat sealers or ties; Heat seal: strong seal; Drawstring: easy tightening. |
|
Printing |
No printing / 1 color / Multi color |
Supports product info, warning symbols, brand logo, barcode, instructions. |
2. Material & Function Selection Guide:
|
Material Type |
Features |
Recommended Applications |
|
LLDPE |
High stretch strength, puncture resistant, strong heat seal, cost-effective |
Industrial raw materials, powders/granules, bulk goods, export |
|
LDPE |
High flexibility, good clarity, low-temperature resistant |
Food ingredients, frozen goods, applications requiring flexibility |
|
HDPE |
Good stiffness, easy opening, crisp feel |
Building materials, chemical raw materials, automatic filling lines |
|
Antistatic |
Surface resistance ≤10⁹ Ω, prevents static buildup |
Electronic components, precision instruments, flammable dust packaging |
|
UV-resistant |
UV stabilizers added – anti-aging, weather resistant |
Outdoor storage, open-air warehousing, agricultural covers |
|
Biodegradable |
Meets EN13432, ASTM D6400 |
Regions with strict environmental regulations, green supply chains |
|
Reinforced composite |
Woven fabric composite, bubble composite, aluminum foil composite |
Heavy goods, light-blocking requirements, cushioning protection needs |
3. Thickness & Load Capacity Guide
|
Thickness |
Load Capacity per Bag |
Typical Products |
|
50–80 μm |
≤10 kg |
Light, bulky items; garments; foam products; waste collection |
|
80–120 μm |
10–25 kg |
Powders, granules, daily chemicals, small parts |
|
120–180 μm |
25–50 kg |
Fertilizer, animal feed, resin pellets, building materials |
|
180–250 μm |
50–100 kg |
Hardware parts, heavy components, bulk industrial goods |
|
250 μm+ |
≥100 kg |
Ore, metal parts, large equipment components |
|
Note: The above are reference values. Actual load capacity depends on cargo shape, edge sharpness, stacking height, and transport conditions. We recommend providing samples for actual testing. |
||
4. Bag Style Comparison & Selection Advice
|
Bag Style |
Features |
Best For |
|
Flat bag |
Simple structure, lowest cost, easy to process |
Basic packaging, liner bags, loose bulk goods |
|
Square bottom bag |
Flat bottom – stands upright, stable stacking, high space utilization |
Shelf display, pallet stacking, automatic filling |
|
Gusseted bag (M-shaped) |
Side folds – expands to large capacity, collapsible when empty |
Fluffy/voluminous goods, lightweight but bulky items |
|
Perforated roll film |
Perforated connections – easy dispensing, fits automatic lines |
Factory production lines, high-volume continuous packaging |
Where These Bags Work Best
Industrial raw materials
Large‑bag packaging for plastic pellets, chemical powders, resins, pigments, additives.
Building materials
Cement, mortar, gypsum powder, tile adhesives, insulation materials.
Agricultural storage
Fertilizer, animal feed, seeds, grain, agricultural film, fruit/vegetable preservation.
Bulk goods transport
Full‑pallet wrapping, container liners, moisture protection for export shipments.
Construction sites
Logistics distribution centers
Oversized parcels, warehouse transfer and storage.
Food ingredients
Flour, sugar, salt, starch, milk powder – food‑grade packaging available.
Environmental & municipal
Large waste bags, industrial waste collection bags.
Why Choose Us as Your Supplier
| Factory direct – no middlemen | 10+ years of industrial packaging experience |
| Monthly capacity 800,000+ bags | ISO / SGS / REACH certified – full international compliance |
| Stable raw material supply chain | OEM / ODM customization supported |
1. Packaging method
Inner PE moisture barrier bag + outer woven bag or kraft carton; edge protectors and stretch wrap reinforcement available.
2. Container loading estimates
20‑ft container: approximately 8–10 metric tons (depends on bag specifications and packaging method);
40‑ft HC container: approximately 12–18 metric tons.
3. Supporting documents
Commercial invoice, packing list, material certificate, REACH/RoHS/FDA compliance declarations, MSDS, SGS test reports.
4. Export experience
Products already exported to North America, Europe, Southeast Asia, the Middle East, and South America – familiar with customs clearance requirements for industrial packaging bags in various countries.
1. Warranty period
12 months from shipment date (when stored away from light, in a cool, dry place).
2.Factory testing per batch
Thickness variation, dimensional tolerance, seal strength, tensile strength, elongation at break.
3.After‑sales terms
Free replacement for quality issues caused by manufacturing defects that render the bags unusable.
Quality assurance agreements available for long‑term cooperation customers – third‑party testing can be arranged annually.
Get free samples
Request wholesale pricing
Customize your packaging solution
FAQ
Q: What is the maximum size available for large plastic packaging bags? Can they fit a sofa?
A: The maximum single‑piece width is 200 cm and length is 300 cm. For extra‑large sizes, we use a seaming process to meet requirements such as container liners or bulk bag alternatives. We can customize sizes to cover single‑seater sofas, two‑seater sofas, large mattresses, etc. Please provide the length, width, and height of your product – we will recommend the optimal size with an additional 10–15% allowance around the perimeter.
Q: How do I choose the right thickness for my product? For sharp mechanical edges, what thickness is needed?
A: Please provide information such as individual item weight, presence of sharp edges/corners, stacking layers, and transport distance. For general industrial machinery, we recommend at least 100 μm (10丝). For extremely sharp edges, 150 μm (15丝) reinforced material is the safest choice. Lightweight/fluffy items can use 50–80 μm; heavy industrial items require 250 μm or more.
Q: How do you ensure the bottom seal does not burst when loaded with heavy items?
A: Our large plastic bags are tensile‑tested in our lab. Combined with the elongation properties of 100% pure LDPE, the load limit is far higher than similar products on the market. The industrial‑strength bottom seal is reinforced using ultra‑wide heat‑sealing technology – it can hold over 45 kg vertically suspended without bottom failure.
Q: Large bags are often difficult to open – do you have a solution?
A: Yes. We apply anti‑block technology at the bag opening, ensuring that large bags open easily. A single person can complete the bagging operation, improving packaging line efficiency.
Q: Will the bags become brittle after 6 months of outdoor storage?
A: Ordinary plastic bags will. However, if you choose our UV‑resistant custom option (with UV stabilizers added), the bags remain tough under direct sunlight, extending service life by 6–12 months. We also recommend increasing thickness to improve tear resistance.
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