Industrial machinery OEMs require heavy, high-precision metal components to keep equipment operating under severe working conditions. At Technox Machining and Manufacturing, we specialize in large-scale CNC milling solutions for workpieces up to 120″ x 150″ x 350″ and weights up to 15 tons, delivering tight engineering tolerances while maintaining competitive pricing.
What CNC Milling Covers
Modern heavy equipment manufacturing demands flexible milling capabilities to process complex, large-format workpieces efficiently. We combine advanced machinery with skilled craftsmanship to produce reliable structural components.
Vertical, Planer, and Multi-Axis Milling
Our Chicago facility operates a fleet of vertical machining centers (VMCs), CNC planer mills, and multi-axis equipment designed for complex, heavy fabrications. By utilizing automated tool changers and multi-axis positioning, we reduce setup times and eliminate cumulative stack-up errors across secondary operations.
Key equipment capabilities include:
- Vertical machining centers. Machining precise mounting faces, deep pockets, and internal features on structural components.
- CNC planer mills. Handling long-bed, large-format weldments and heavy machine bases requiring continuous flat surface profiles.
- Multi-axis equipment. Executing complex 3D contours and compound angles in single setups to optimize tolerance retention.
Materials We Machine
Heavy industrial machinery relies on varied metallurgical properties to handle high stress, wear, and impact. We regularly machine standard carbon steels, alloy steels, stainless steels, aluminum, and cast iron. Our machinists also process tough superalloys and heavy metal plates without sacrificing surface finish or dimensional accuracy.
CNC Milling Capabilities and Part Sizes
Machining oversized parts requires specialized heavy-duty equipment, substantial crane capacity, and rigorous vibration control. Our Chicago facility is specifically equipped to handle large-format milling projects that standard machine shops cannot accommodate.
Large-Part and Heavy-Duty Milling
We specialize in oversized components, providing large travel envelopes that accommodate industrial weldments, machine bases, and structural frames. Supported by overhead crane capacity up to 15 tons, our machinery handles massive workpieces while maintaining precise geometric control across long tool paths.
Tolerances and Precision
Large physical scale does not require sacrificing precision. We routinely achieve dimensional tolerances down to ±0.0005″ and surface finishes up to 32 microinches on critical mating surfaces. All machining operations comply with ASME Y14.5 geometric dimensioning and tolerancing (GD&T) specifications.
How CNC Milling Fits Your Project
Integrating reliable CNC milling services into your supply chain minimizes production bottlenecks and ensures seamless component assembly.
Industries and Applications
We manufacture essential components for demanding sectors, including steel mills, oil and gas pipelines, wastewater treatment plants, and heavy packaging machinery. Typical applications include gearboxes, bearing housings, mounting plates, drive shafts, and custom valve bodies. Discover our full range of general machining services to explore how we support custom OEM manufacturing.
Quality Control and Inspection
Quality assurance guides every step of our manufacturing workflow. Operating under an ISO 9001-certified quality system, our inspectors check incoming raw materials, conduct in-process dimensional audits, and perform final CMM inspections. Every part leaves our shop fully verified against your original CAD models and engineering prints.
Getting a Milling Quote
Requesting a milling quote is straightforward. Submit your project details through our online portal for a fast, technical evaluation. Standard turnaround lead times run 2 to 3 weeks for lower-volume production, or 8 to 10 weeks for high-volume or complex components.
To ensure an immediate quote turnaround, include the following in your RFQ packet:
- Complete engineering prints (STEP, IGES, or DXF CAD files)
- Material grade and specialty heat-treatment requirements
- Critical tolerances, surface finish callouts, and GD&T specifications
- Production volume and required delivery schedules
Start Your CNC Milling Project With Technox
Technox Machining and Manufacturing brings decades of heavy manufacturing expertise, ISO 9001 quality controls, and unmatched large-part capacity to your supply chain. Whether you need custom prototypes or ongoing OEM production, our team delivers high-precision CNC milling services tailored to your budget and timeline.