Chicago Flame Hardening Co

Founded in 1948, Mech-Tronics began as a mechanical and electrical assembly. Currently, the company has grown to be a supplier of precision fabricated components serving the aerospace, avionics, communications, medical and military industries. Based in Melrose Park, Ill., it offers manufacturing services in precision sheet metal fabrication, photochemical etching, aluminum dip brazing and nuclear instrumentation. In addition, the firm provides computer numerical control milling machining (CNC), certified welding, chemical conversion, hardware installation and painting. Mech-Tronics is ISO 9001:2000 and AS9100B:2004 certified.

TC Industries, Inc. is engaged in the commercial heat-treating of carbon and alloy steel bars. It serves the steel industry with highly trained employees who have the skills and tools necessary to provide its customers with the delivery and conformance to their precise specification. Its Mill Product Division has the capability to quench and temper steel bars in water, oil or polymer. It is capable of normalizing bars at 1700 degrees F., can handle rounds from 3/8' to 12' in diameter and can handle flats, squares, hexes, and octagons up to 350 pounds per lineal foot. The company is equipped with an annealing furnace that has a hot zone of eighty feet in length. The company also provides stress relieving, shot blasting and demagnetizing to its customers. The division has more than five horizontal hydraulic presses for straightening heavier flats and squares. TC Industries, Inc. is headquartered in Crystal Lake, Ill.

Founded in 1950, Riverdale Plating & Heat Treating is a heat treating and electroplating company. Located in Riverdale, Ill., the company specializes in metal finishing of fasteners and stampings for the automotive and related industries. It utilizes advanced heat treating technologies and computer-controlled atmosphere and monitoring systems for atmospheric hardening, gas carburizing and carbo-nitriding. Riverdale Plating & Heat Treating s metal finishing processes are carried out on automatic computerized barrel plating equipment devices. The company operates a 125,000-square-foot manufacturing facility located in Riverdale, Ill., with more than five belt furnaces and over three automatic barrel hoist plating lines. It serves customers in Indiana, Michigan, Ohio and Tennessee. Riverdale Plating & Heat Treating has received an ISO 9000:2000 certification from the International Organization for Standardization.