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A Proudly Canadian Corporation  Serving the pulp, paper, and board industry for three generations     

QS Fibre is there for you, offering technical support 24 and 7

A Brief History

Pulmac Inc was incorporated in 2003 and, in 2012, became a founding shareholder in Pulmac Systems International Inc of Williston, Vermont. Pulmac Inc was responsible for all manufacturing and service until it formally broke with Pulmac Systems in May, 2015. Changing its name to QS Fibre Inc in 2016, the Montreal-based company  offers the  AutoScan for on or off-line determination of fibre, shive, and fines size distributions as well as competitive products and services for :

  • Pulmac MasterScreen, Z-Span Tester, Automated Sheet Former, Beater, and Dewatering Device.
  • Provisioning of testing services, in-mill service support, and mill studies

QS Fibre is owned and  operated by Brent Cowan, son of Wavell Cowan and grandson of inventor, industrialist and Pulmac patriarch, Eli Cowan.

W. Brent Cowan, CD MSc


QS Fibre : Committed to integrity

Atholville NB Pulp MillAtholville NB Pulp Mill


 QS Fibre is a fully accredited provider of parts and service for all Pulmac instruments sold prior to May 2015. It offers its clients full service post-sales support. This takes the form of regular preventive maintenance inspections, emergency repair effected on site or in our Montreal facility, overhaul, and technical upgrade modification. Our aim is to ensure our clients who have purchased Pulmac or QS Fibre testers will receive the timely and economical professional technical support they need in order to maintain a high degree of confidence in the information their Pulmac or QS Fibre testers provide them.