Greno Industries provides precision aluminum machining services for the power generation, heavy equipment, defense, industrial manufacturing, and lifting device industries.
Greno Industries combines advanced machining capabilities with decades of manufacturing experience to support demanding industrial and defense applications.
Our certifications and qualifications include:
AS9100:2016
ISO 9001:2015
ITAR registered
Woman-Owned Small Business (WOSB) certification
Customers choose Greno Industries for:
Large-format machining expertise
Tight-tolerance machining capabilities
In-house gun drilling
Rapid-response manufacturing
Experienced machinists
End-to-end manufacturing support
Reliable quality systems
From custom prototypes to production manufacturing, Greno Industries delivers precision aluminum machining services built around quality, repeatability, and customer performance requirements.
Greno Industries machines a wide range of carbon steel grades, including:
6061
7075
2024
Greno’s CNC milling equipment handles everything from small precision blocks to large, complex geometries. Our 3‑axis and 4‑axis CNC mills are equipped to machine aluminum components with:
High‑precision pocketing and contouring
Complex geometries and multi‑face machining
Thread milling and tapped features
Surface finishing and flatness control
Tight‑tolerance bores and slots
Among its advantages, our CNC milling equipment supports aggressive cutting parameters, and 4-axis rotation is especially useful for machining keyways, bolt circles, and radial features. Milled carbon steels are also used in shafts, flanges, and prismatic parts.
For customers across various industries, Greno precision machines
Bearing housings
Mounting plates
Structural brackets
Valve bodies
Custom machined blocks
Precision interfaces for assemblies
Every part is inspected using calibrated metrology equipment to ensure compliance with customer specifications.
Greno’s large diameter turning services can support components up to several feet in diameter. This is critical for industries that need strong, heavy carbon steel parts such as:
Shafts
Rings
Sleeves
Flanges
Couplings
Large fastener bodies
Cylindrical housings
Greno’s turning centers are engineered for:
High‑torque roughing of forged or hot‑rolled stock
Precision finishing to tight tolerances
Threading, including ACME, UN, and custom profiles
Boring and facing of large internal diameters
Concentricity and roundness control, critical Geometric Dimensioning and Tolerancing (GD&T) controls for rotating and mating components
Greno’s in‑house gun drillling services are a major differentiator. Many machine shops outsource deep hole drilling, but Greno performs it internally using a DeHoff 60” gun drill and a DeHoff 24” dual-head gun drill.
Our gun drilling machines feature cast‑iron drill bases, hardened box ways, and hand‑scraped mating surfaces. Compared to linear guide machines, this construction delivers superior vibration damping and tool life.
Ask Greno to gun drill 1.25” through-holes up to 60 inches deep. In addition to aluminum and steel, we can gun drill superalloys like Inconel 718. With carbon steel, our deep hole drilling capabilities are essential for manufacturing:
Long fasteners
Studs and bolts
Hydraulic components
Shafts with internal lubrication channels
Cylindrical housings requiring deep bores
Gun drilling requires precise coolant delivery, chip evacuation, and feed control. Greno’s equipment and experience ensure straightness, roundness, and surface finish throughout the entire bore.
While many machine shops work with aluminum, Greno Industries specializes in large-format machining and tight-tolerance that require advanced equipment, rigid setups, and experienced machinists.
Shafts
Bushings
Housings
Structural components
Flanges
Couplings
Custom fasteners
Valve bodies
Heavy-machined industrial parts
From prototype machining to production manufacturing, Greno delivers the precision, repeatability, and quality required for demanding industrial applications.
