Greno Industries

Pulp and Paper


Pulp and Paper Parts Manufacturer

Engineered Components for Severe Corrosion, High Temperatures, and Continuous Operation

The pulp and paper manufacturing environment is one of the most punishing industrial sectors on Earth. Machinery operates continuously under extreme mechanical stress, exposed to highly corrosive chemical processes, abrasive wood fibers, massive moisture loads, and soaring temperatures.

At Greno Industries, we specialize in high-precision, heavy-duty CNC machining and custom manufacturing for pulp, paper, and tissue mill equipment. Whether you need to manufacture critical OEM components from advanced corrosion-resistant alloys or reverse-engineer legacy replacement parts to keep older machinery running smoothly, we deliver durability and tight tolerances.

Our industry experience includes the GIS Valve, a hydraulic pilot operated safety relief valve engineered to provide reliable overpressure protection for high-pressure steam systems.

Component Manufacturing & More for Mill Machinery

Our state-of-the-art facility is equipped with large-envelope CNC milling, multi-axis turning, and advanced manufacturing technologies. We manufacture and rebuild critical parts for every stage of the production cycle—from woodyard processing to the final calendar stack.

Custom Mill Component Production

We machine a diverse selection of high-tolerance parts for pulp and paper equipment, including:

  • Refiner plates, segments, and rotor shafts

  • Pulper rotors, impellers, and extraction plates

  • Custom valves, pump impellers, shafts, and housings

  • Suction roll shells, heads, and journal bearings

  • Calendar roll components, gears, and bearing housings

  • Conveyor components, sprockets, and heavy-duty drive shafts

  • Doctor blade holders and precision backing assemblies

Large-Scale CNC Milling & Turning

Pulp and paper machinery components are frequently massive and structurally complex. Our heavy industrial machining infrastructure easily accommodates large-diameter shafts, heavy-gauge castings, and complex forgings, ensuring absolute structural integrity and precise concentricity.

Advanced Surface Finishing & Balancing

To prevent premature mechanical wear and material buildup on critical paper-contact components, we offer specialized finishing treatments. Our precision grinding, surface texturing, and balancing services ensure that rotating components run true, minimizing vibration and optimizing sheet quality.

Why Partner with Greno Industries?

Expert Industrial Reverse-Engineering

Many mills run reliable, decades-old machinery where original OEM replacement parts are obsolete, prohibitively expensive, or restricted by lengthy international lead times. Our engineering team can reverse-engineer worn, damaged, or legacy parts, translating them into precise digital models and manufacturing heavy-duty replacements that match or exceed original performance specs.

Certified Quality and Traceability

Operating under a rigorous quality management system, we provide full material traceability and structural certification for critical mill components. Every part undergoes comprehensive dimensional inspection with advanced metrology equipment before leaving our floor.

Rapid Response to Minimize Mill Downtime

We understand that an idle paper machine can cost tens of thousands of dollars per hour. By streamlining our scheduling, maintaining a robust inventory of specialized raw materials, and executing efficient workflows, Greno Industries acts as a responsive partner to supply critical spares during both planned shutdowns and emergency outages.

Metals for Severe Chemical and Wear Environments

Pulp and paper processing involves harsh chemical recovery cycles, bleaching agents, and abrasive slurries. To extend equipment lifespan and maximize mean time between failures (MTBF), Greno Industries machines parts from a robust range of certified high-performance materials:

  • Duplex & Super Duplex Stainless Steels (e.g., 2205, 2507): Offering superior yield strength and exceptional resistance to chloride stress corrosion cracking and pitting in aggressive liquor environments.

  • Austenitic Stainless Steels (316L, 317L): The industry standard for reliable corrosion resistance against cooking liquors and bleaching chemicals.

  • Hastelloy®, Inconel®, and Titanium: Deployed in the most extreme bleaching and chemical processing zones where standard stainless steels degrade.

  • Abrasion-Resistant Alloys & Hardfacing Materials: Utilized for high-wear areas handling raw timber, wood chips, and high-density pulp slurries.

  • Specialty Bronzes: Precision-machined for low-friction bearings, structural wear strips, and specialized bushings.

Optimize Your Mill’s Reliability and Performance

From woodyard chipping equipment to high-speed paper machine press sections, trust an industrial manufacturing leader with the experience, scale, and technical capability to deliver components that last.

Contact the engineering and sales team at Greno Industries today to discuss your part specifications, submit your blueprints, or request an accurate quote for custom pulp and paper manufacturing services.