Mills run continuously under high temperatures, extreme pressures, corrosive chemicals, and abrasive slurries. Since 1885 we have built the equipment that keeps them running.
Harris Thermal designs and fabricates custom-engineered process equipment for pulp, paper, and wood product facilities across North America — ASME pressure vessels, TEMA heat exchangers, evaporators, tanks, and cyclones, all built for efficiency, compliance, and long service life.
Over a century of custom fabrication experience for demanding industries.
Supporting pulp, paper, and wood product mills across the U.S. and Canada.
Stringent welding qualifications, hydrotesting, and non-destructive examination.
From single vessels to complex multi-unit mill projects.
Collaborating directly with engineers and project managers to deliver on time and on spec.
Materials and designs proven in corrosive, abrasive, continuous mill duty.
From ASME digesters and black liquor evaporators to heat exchangers, cyclones, and custom tanks — tell us what your mill needs.