Import 3-Layer Corrugated Paperboard Production Line — Buy in Bulk from Supplier in China

The 3-layer corrugated paperboard production line from Hangzhou Royall Import & Export Co., Ltd. is a complete manufacturing system designed to produce single-wall (B-flute, C-flute, or equivalent) corrugated board from a combination of linerboard and corrugated medium. The line typically integrates a mill roll stand, single facer, glue machine, double facer, slitter scorer, and rotary die-cutter or flexo folder-gluer, depending on the configuration ordered. Output speed and board width vary by machine specification, with standard working widths typically ranging from 1400 mm to 2500 mm in the industry.

The construction centres on a modular steel frame with hardened chrome-plated corrugating rollers, usually manufactured from alloy steel with tungsten carbide coating for extended wear resistance. Heating systems employ steam or thermal oil, with operating temperatures typically reaching 160-180°C on the corrugating cylinders. The glue unit applies starch-based adhesive, with typical viscosity controlled between 20-60 seconds on a Stein-Hall cup. Flute profiles are interchangeable via cassette-style roller changes, allowing A, B, C, E, or F flute configurations on the same line with appropriate tooling swaps.

Primary applications include box and carton manufacturing for e-commerce fulfilment, food and beverage packaging, consumer electronics protection, and industrial component shipping. Buyers are typically integrated packaging converters, independent sheet plants, or large end-users establishing captive production. Trade terms, lead times, and exact output specifications for this Hangzhou Royall unit should be confirmed directly with the supplier, as the listing does not state verified capacity figures or delivery schedules.

Hangzhou Royall Import & Export Co., Ltd. is located at No.1113, Modern Star, #337 Shaoxing Road, Hangzhou 310000, Zhejiang Province, China. The supplier is classified under the imported tier within the harbor trust tier. The company operates as a trading entity based in Hangzhou, a major manufacturing and export hub in eastern China with established logistics infrastructure including Ningbo-Zhoushan Port and Shanghai Port access.

The listing presents no response rate data and zero average response hours, which indicates limited communication history on this platform. No verified factory audit details, certification documents, or production capacity figures are stated in the available profile. Buyers should request direct verification of Hangzhou Royall's manufacturing partnerships, installation references, and after-sales service capability before committing to an order for capital equipment of this scale.