Holtec International is in the vanguard of the global manufacturing renaissance fueled by rapid leaps in advanced manufacturing technologies that employ robotics, automation, and digitally savvy lean manufacturing.
The Company’s heavy fabrication and machining pre-eminence is undergirded by Holtec’s three mammoth manufacturing plants located in Ohio, Pennsylvania, and New Jersey, covering nearly 1.5 million square feet of manufacturing floor space.
The three plants collectively provide capabilities to sculpt large forgings and castings into precision components that are unrivaled in North America.
Holtec’s fabrication capabilities can be deployed to extrude, roll, form, weld, machine and finish precision custom parts for the entire range of industries that need them: military, aerospace, nuclear, pharmaceutical, chemical, petrochemical, to name a few.
Some vignettes that illustrate Holtec’s heavy fabrication capabilities:
- Our ultra-precision CNC machine tools can machine parts up to 62 feet long and 21 feet high, while maintaining a dimensional tolerance of less than .0003”. To put this into perspective, this precision would allow the machine to cut 100 stair steps within the cumulative tolerance that is less than the thickness of a credit card.
- An array of several ultra-heavy hydraulic press brakes and plate rollers provide capability of hot and cold rolling of plate stock — thin and thick — with maximum plate thickness in excess of 7 inch.
- Manufacturing and assembly of weldments that are as much as 100 feet long, and weigh up to 400 tons. The building steel, cranes, floor and manufacturing processes are all designed to support large part fabrication.
- Our largest CNC vertical turning mill can machine any cylindrical parts up to 15 feet in diameter, 100 tons in weight and reaching 17 feet high.
- A number of extrusion presses installed at Orrvilon provide the ability to extrude aluminum alloys of all types (Class 1000 to 7000). The largest extrusion press has thrust capacity of 7200 tons and can handle billets up to 14-inch diameter and 700 lb. in weight.
- Orrvilon also boasts two Friction Stir Welding machines that can join alloys of aluminum, copper, and other exotic metals in thicknesses up to 1 inch.
The one-of-a-kind manufacturing capabilities, along with the overlay of robotics, automation and technology, underpin Holtec’s ability to deliver challenging custom parts with exceptional quality, and timely delivery.
Holtec’s Proven Recipe for Manufacturing Excellence
- A common Quality program: All Holtec’s Manufacturing Divisions employ a common quality platform for all required activities (from order entry, to design, to manufacturing, to delivery). Common quality platform means:
- One approved vendor list;
- One corrective action program;
- One set of operating procedures.
- One (all-digital) configuration control system
- A Robust process for material traceability and defective material control:
- Computerized inventory with air tight material release protocol
- Auto crib vending machines & color coding working stations
- Visual aids utilized placed through-out the facilities to identify (e.g., “Proper Marking” vs. “Improper Marking.”
- Electronic Production Control
- A fully computerized traveler system that seamlessly combines the following (electronically robust) control elements.
- PWRP: Production Work Routing Plan
- e-SADS: Electronic Subassembly Data Sheet
- e-Inspection: Inspection Report Data Sheet
- Software applications fully integrated with QA protocols
- Real time information entry: Information is entered “real time” from the shop floor via barcodes. Software application have road tested barriers to eliminate Human Error and to assure final product
- Manufacturing infrastructure controlled by road tested software
- Verification of calibrated equipment
- Verification of Non-destructive examination (NDE) and Inspection Qualification
- Welder Qualification and continuity
- Verification of welding parameters (WPS and Filler Metal verification)
- Material profile and verification of critical material attributes to prevent unintended usage
- Status control for welding, inspections, and examinations
- Computerized control of Non-conformance, Corrective Action Requests and personnel training program
Additional information on the machines and capabilities may be obtained on the pages linked below for each facility: