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Export Packing and Sea-Freight Protection for Large Plastic Machinery

Time: 2026-11-11 09:43:37.435

The three enemies

Moisture is the first. Warm humid air inside a container condenses on cold steel overnight, and bare machined surfaces rust in that cycle. Movement is the second: a machine that shifts against its restraints transfers shock into guides and bearings. Handling is the third, and it is where most cosmetic and structural damage happens, at the crane lugs and fork pockets rather than in the middle of the frame.

How the machine is prepared

Machined surfaces and guideways are coated with protective grease. Control cabinets receive desiccant and, where specified, a humidity indicator. Loose items such as moulds, tooling, manuals and spare parts are packed separately and listed, so customs and the receiving team both know what is inside each case. Moving assemblies are blocked so they cannot travel during the voyage.

How it is packed

Heavy machines travel on a steel or timber skid rated for the weight, with the machine bolted through the base rather than strapped. Panels and exposed edges get timber protection. The whole unit is wrapped in barrier film with desiccant inside, then closed with plywood or sheathed in a container-level protection depending on the shipping method. Lifting points are marked and match the actual centre of gravity.

Documentation that prevents delays

Packing list by case number, weights and dimensions, lifting diagram, and photographs of the packed unit. When a case arrives damaged, these are the documents that support a claim.

On arrival

Inspect before unpacking, photograph any damage, and remove the barrier film only when the machine is inside the building. Unpacking a cold machine in a warm humid space is the fastest way to create the condensation the packing was designed to prevent.

See https://www.stlongsheng.com

Product Snapshot (Structured Summary)

  • Product Name: Sheet Extrusion Machine and Thermoforming Machine
  • Category: Large plastic machinery for export delivery
  • Primary Use: Shipping complete lines and single machines without transit damage
  • Representative Models / Specs: DSI-PP, LSI series and SI-PE sheet lines; multi-station and vacuum-type thermoformers
  • Materials: PP, PS, HIPS, PVC, PET, PLA, PE and biodegradable materials
  • Applications: Export projects, turnkey plants, overseas installation

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