In Columbus, Casting operations are supported by four Brown-Boveri coreless induction furnaces, coupled with 1200°F (650°C) preheating, and a comprehensive core shop employing isocure, shell and no-bake (air set). Steel and quality scrap are purchased from a variety of sources.
The Large Casting Facility at Columbus utilizes a Heinrich Wagner Sinto automated molding machine. Using this (48×48 18/18) high pressure machine, ductile iron and gray iron casting capability includes the cost efficient manufacture of large castings. The Sinto incorporates the Seiatsu blow squeeze process, and provides opportunity to produce short run and high-volume orders.
The goal with a tight-flask machine such as this is to create near net-shape castings, reducing the need for machining and other processing operations.
Columbus also has a Small casting facility with three Hunter molding machines. The machines produce castings ranging from a few pounds to more than 200 pounds.
Goldens’ new second facility comprises the largest step in expanding output in the company’s 130 year history. The 150,000 sqft facility, built in 2001, houses Savelli cope and drag (28×36’ 12/12) molding line with automatic core setter to create small to medium sized ductile and gray iron castings.
The Savelli is capable of making ~120 molds an hour. The facility also includes cleaning, robotic finishing, and machining centers.
Operations at the new Golden facility began in May 2007.