Import Dunnage Bag — Buy in Bulk from Supplier in China

The Dunnage bag from Shanghai Spyis Packing Material Co., Ltd. measures 50 cm by 100 cm and is engineered to deliver a compression strength of 0.4 Pa, designed to immobilize cargo during transit. It is constructed from a laminated composite of kraft paper, polypropylene woven fabric, and polyethylene film, combining tear resistance with controlled elasticity. The bag is inflated manually or with a pump to fill voids between pallets, crates, or machinery, reducing shift and impact damage during transport.

This dunnage bag is typical of industrial-grade air bags used in maritime and rail logistics. The outer kraft layer provides abrasion resistance, while the PE film inner layer ensures air retention. The PP woven layer contributes tensile integrity and prevents over-inflation. Standard units in this category usually support loads between 1 and 5 tonnes per bag, with burst pressure tolerances exceeding 1.5 times operating pressure. Reusability is common, with most units surviving 5 to 10 inflation cycles if handled without sharp contact.

Buyers in logistics, heavy machinery shipping, and bulk commodity transport use these bags to stabilize irregular loads in containers and railcars. They are preferred over wood blocks or foam due to lower weight and faster deployment. The product is typically shipped in bulk packs of 50 to 200 units per carton. Trade terms are negotiable, but standard packaging includes cartons with inflation nozzles pre-attached. MOQ and lead time require direct confirmation with the supplier.

Shanghai Spyis Packing Material Co., Ltd. is a supplier based in the Jiading District of Shanghai, with a registered address at 804 Room, Huancheng Road No. 2222. The listing identifies the company as imported and verified by harbor-level trust signals, indicating presence in export documentation systems. There is no public information on years in operation, workforce size, or client list. The company's activity appears focused on packaging materials, specifically dunnage bags and related cargo stabilization products.

The supplier does not claim certifications, awards, or production capacity figures. Response rate and average response time are not recorded in the listing, suggesting limited or no active communication channel on the platform. Buyers should treat this as a manufacturer or trader with documented export history but unverified operational details. All claims about the product must be confirmed directly with the supplier before ordering.