Plastic packing bag 50kg manufacturers

For a 50kg load capacity, the most common material is PP (Polypropylene) woven fabric. You should ensure the GSM (Grams per Square Meter) is at least 70-90g/m² to prevent bursting. If the product is moisture-sensitive, specify a PE (Polyethylene) inner liner or a BOPP lamination for enhanced water resistance and print quality.

Request a Drop Test Report from the supplier, typically ensuring the bag can survive a 1.2 to 1.5-meter drop without rupture. Additionally, check the tensile strength of the fabric and the stitching density at the bottom; a double-fold, double-stitched bottom is essential for securing a 50kg weight.

If packing food items like rice or flour, the bags must be FDA or EU Food Contact compliant and made from 100% virgin resin (no recycled materials). For hazardous chemicals, the bags must meet UN Certification standards for dangerous goods packaging, including specific labeling and leak-proof requirements.

You should evaluate BOPP film printing which allows for high-resolution, multi-color graphics that won't rub off. For automated filling lines, ensure the bags have anti-skid weaving or anti-slip coating to prevent stacks from collapsing during palletization and transport.

Always request a pre-shipment inspection (PSI). Use a micrometer to check fabric thickness and a scale to verify the weight per bag. A common industry trick is reducing the GSM to save costs, which leads to bag failure during 50kg loading. Ensure the contract specifies a weight tolerance of no more than ±3%.

Since empty bags are relatively heavy and dense, Sea Freight (FCL - Full Container Load) is the most economical method. To maximize space, ask the supplier to use hydraulic baling presses to compress the bags into tight bales, which can significantly reduce the total shipping volume and freight cost per unit.

For new suppliers on Made-in-China.com, utilize Secured Trading Services. Avoid 100% upfront payments; a standard industry practice is 30% deposit and 70% balance against the Bill of Lading (B/L) copy after quality verification. This protects your capital until the goods are confirmed to be shipped.

Be aware of Anti-Dumping Duties (ADD) and Plastic Taxes in your destination country. Some regions impose high tariffs on imported PP woven bags to protect local industries. Verify the HS Code (typically 6305.33) with your customs broker to calculate the exact landed cost before placing a bulk order.