Import 3/5/7 Ply Corrugated Paperboard Production Line — Buy in wholesale FOB from Supplier in China

The Shandong Rino International Trade Co., Ltd. 3/5/7 Ply Corrugated Paperboard Production Line is a complete corrugated board manufacturing system anchored by a U-V5B hydraulic mill roll stand with dual-side paper loading capability. The line incorporates a top paper preheater (RG-1-900 model), a fingerless-type single facer (SF-320C), and associated conveying and glue application equipment for producing multi-wall corrugated paperboard. Key dimensional and performance figures from the source include a preheater with 360-degree angle adjustment, a wall thickness of 200 mm on the single facer castings, and a track length of 6000 mm for the paper trolley system.

The U-V5B mill roll stand uses hydraulic drive for clamping, lifting, and lateral translation of paper reels, with multipoint braking to control web tension during acceleration and deceleration. Each stand is paired with two paper trolleys that operate on buried track fabricated from 14th channel steel and 20 mm cold-drawn round bar, allowing simultaneous loading from both sides. The SF-320C single facer employs a hood suction structure with a high-pressure fan, resin-sand cast wall construction, and universal-joint transmission through an independent gearbox. The glue section uses an integrated slide structure with a 25-line pit-textured hard chrome-plated glue roller, with electric adjustment of glue volume and encoder-transmitted coating gap for repeatability.

This configuration suits packaging manufacturers requiring flexibility across 3-ply to 7-ply board for industrial cartons, shipping containers, and heavy-duty packaging. The fingerless design reduces flute crushing at higher speeds, while the preheater's pressure vessel construction meets national standards with enclosed inspection certification. Buyers should confirm the upward compatibility of the line, that is, whether a 3-ply base machine can be field-upgraded to 5-ply or 7-ply with additional single facers and double backers. Trade terms, lead times, and after-sales support scope are not specified and require direct discussion with Shandong Rino.

Shandong Rino International Trade Co., Ltd. is headquartered in Gaoxin District, Jinan, Shandong Province, China, postal code 273000. The company operates under a harbour trust tier classification with a recorded response rate of 0.00 and zero average response hours. Its business scope extends beyond corrugated machinery to include packaging consumables, second-hand packaging equipment, printing machines, and die-cutting machinery, positioning it as a diversified supply source rather than a single-product manufacturer.

The listing identifies Shandong Rino as a trading company with international reach, not necessarily the original equipment manufacturer of every subassembly. The SF-320C and RG-1-900 model numbers suggest sourced or partnered machinery rather than proprietary design. No manufacturing floor area, workforce size, year of establishment, export volume, or client reference list is provided. Buyers should clarify whether Shandong Rino owns the production facility, acts as a sales agent for a designated OEM, or sources from multiple workshops. Verification of the pressure vessel certificates, electrical compliance marks, and model-specific spare parts availability is essential before commitment.