Customer case:

Cartones Ponderosa strengthens its competitive advantage

Nov 18, 2016

Mexico’s leading producer of coated folding boxboard invested in Valmet's curtain coating and air impingement drying technology to improve coated board quality, lower costs and boost productivity. Prior to the investment, they tested the technologies and different coating recipes at Valmet Paper Technology center. The coating recipes developed in pilot plant were reproduced successfully with the production machine.

Reduced coating weight and increased opacity and coverage at Cartones Ponderosa after Valmet rebuild
Optimum quality was achieved after just eight hours of operation of the new curtain coater. It makes it possible to reduce 4 g/m² of total coating weight resulting in annual savings of 2,700 tons of coating material.”
Saul Guzman Espinoza, Director of Operations, Cartones Ponderosa


Location Cartones Ponderosa San Juan del Río mill in Mexico
Customer challenge Better printing properties that require smoother surfaces. Need to increase in machine speed and lower the operating cost.

Folding boxboard

235 - 490 g/m2

Food and pharmaceutical use


Pilot trials at Valmet Paper Technology Center prior investment decision.

Rebuild of the board machine with Curtain coating and air impingement drying technology.


Valmet’s solution was a complete one that required only a very short downtime for implementation.

The quality of the new coating was good from the start, and optimum quality was achieved after just eight hours of operation of the new curtain coater. 

A very uniform coating is obtained resulting in increased opacity and better coating smoothness.  Applied coating color has been reduced from 36 g/m² to 32 g/m².

Keywords Board and paper, Rebuilds, South America