Greno Industries specializes in precision machining for large, complex parts. We combining decades of engineering expertise with state-of-the-art equipment to meet challenging material specifications and strict dimensional tolerances. Greno is a trusted manufacturing partner to industry leaders across multiple sectors where component failure is not an option.
Watch this video to take a virtual tour of our facility in Scotia, New York (USA).
Our 3-axis and 4-axis CNC milling setups deliver the versatility required for complex geometries, precise slotting, pocketing, and contouring. Utilizing advanced toolpaths and rigid workholding, we achieve exceptional surface finishes on tough alloys, reducing cycle times while maintaining blueprint tolerances.
With vertical and horizontal turning lathes capable of swinging diameters up to 90 inches, Greno handles oversized shafts, rings, and cylinders. Our heavy-duty turning equipment provides the necessary torque and rigidity to execute deep cuts and fine finishes on high-strength materials.
Greno provides specialized deep hole gun drilling services to produce exceptionally straight, deep holes with superior internal surface finishes. This specialized internal capability eliminates multi-vendor shipping delays and ensures single-source quality control for critical shafts, cylinders, and blocks.
We manufacture specialty, high-strength fasteners designed to withstand extreme pressure, thermal cycling, and corrosive environments. From custom-threaded studs to heavy hex bolts, our fasteners meet strict military, aerospace, and power generation specifications.
Large precision‑machined metal parts require heavy‑duty equipment, stable fixturing, and tight‑tolerance processes to achieve consistent, production‑ready results. They’re milled, turned, drilled, and inspected using workflows, tooling strategies, and machining techniques that maintain accuracy across large geometries.
Our machining protocols are strictly aligned with the quality tracking, material traceability, and non-destructive testing requirements mandated by elite OEMs and global supply chains:
Power Generation & Turbomachinery: Precision components for aeroderivative gas turbines, steam turbines, and heavy industrial power systems.
Aerospace & Defense: AS9100 certified components engineered to perform under extreme mechanical stresses and flight-critical environments.
Maritime & Unmanned Systems: Specializing in corrosion-resistant alloy machining for subsea, naval, and unmanned undersea vehicle (UUV) applications.
Our 200-pocket tool changer is a high-capacity storage carousel on a CNC machine that holds up to 200 different cutting tools or attachments. By storing 200 tools (“pockets” or “pots”), the machine can produce highly complex, multi-part runs or machine diverse materials without requiring operators to stop and swap out tooling.
Submit your custom engineering blueprints, material specifications, and compliance requirements directly to our estimating team for an accurate Request for Quote (RFQ).
Let’s talk about your project.
