Smarter Valve Automation for Reliable Paper & Pulp Manufacturing
At Duncan Engineering, we provide robust, energy-efficient valve automation and pneumatic solutions designed for the unique challenges of paper and pulp production. From wood preparation and pulping to chemical dosing, drying, and finishing, our systems deliver dependable performance in abrasive, humid, and high-cycle environments. Duncan solutions help paper manufacturers achieve higher machine availability, consistent quality, reduced maintenance, and better environmental compliance — while lowering energy and utility costs across the mill.
Where our solutions work
Wood Handling & Chipping
Process: Robust valve automation supports dust suppression, lubrication, and motion control in systems that debark, chip, and convey wood for pulping.
Solutions: Control Panels, Pneumatic Actuator, Pneumatic Valves
Pulping (Chemical / Mechanical / Recycled Fiber)
Process: Automation for chemical, mechanical, or recycled fiber pulping systems, enabling precise control over flow rates and chemical feeds.
Solutions: Ball Valves, Butterfly Valves, Control Panels, Pneumatic Actuator,
Bleaching & Chemical Dosing
Process: Valves designed to accurately dose and handle aggressive bleaching and process chemicals, supporting product quality and safety.
Solutions: Flow Control Valves, Pneumatic Actuator, Pneumatic Valves
Stock Preparation & Approach Flow
Process: Valve solutions for consistent pulp slurry mixing, dilution control, and approach flow management to the paper machine.
Solutions: Butterfly Valves, Flow Control Valves, Pneumatic Actuator, Pneumatic Valves
Paper Machine (Forming, Pressing & Drying)
Process: Pneumatic systems automate core paper-making stages like sheet forming, pressing, drying, and web tensioning.
Solutions: Ball Valves, Butterfly Valves, Pneumatic Actuator, Pneumatic Valves, Air Preparation Units
Coating, Calendaring & Finishing
Process: Precise pneumatics enable high-speed coating, polishing, slitting, and cutting operations to ensure high surface quality.
Solutions: Flow Control Valves, Pneumatic Actuator, Quick Exhaust Valves,
Utilities & Plant Services
Process: Air, water, and steam utility systems across the mill rely on durable valve components for efficient distribution and control.
Solutions: Ball Valves, Butterfly Valves, Pneumatic Valves, Air Preparation Units
Effluent Treatment & Chemical Recovery
Process: Durable valve automation solutions for managing wastewater treatment and recovering chemicals in closed-loop processes.
Solutions: Ball Valves, Butterfly Valves, Control Panels, Pneumatic Actuator,