Gros-Ite Spindles Produces Tailstock Assembly

Gros-Ite Precision Engineered Spindles, a business unit of EDAC Technologies Corporation, Farmington, CT announces the shipment of a large precision tailstock spindle assembly. This spindle is the largest ever designed and manufactured by the company.

The tailstock spindle assembly was manufactured under contract with a Connecticut based machine tool manufacturer for use on a lathe that produces large shafting for the power generation industry. The lathe is capable of machining parts that are 40 feet long, and weighing 400,000 pounds.

The spindle features a 30" diameter quill housing with a 14" stroke. The stroke is generated by a precision ball screw powered by an AC induction motor through a worm gear reducer. The quill is supported by two hydraulically actuated guiding/clamping sleeves.

The tailstock spindle shaft is supported in the radial direction by two high precision cylindrical roller bearings. Thrust loads are supported by a combination of roller thrust and spherical roller bearings. Bearings are lubricated using chilled, recirculating oil. The assembly is designed to operate at speeds up to 50 RPM while supporting extremely heavy axial and radial loads.

Thermal growth of the work piece is counteracted by a series of bellville springs that allow the shaft to float with any work piece expansion while still maintaining adequate clamping force. The clamping force is measured using a load cell and digitally displayed on the operator's control panel.

Radial capacity of the assembly is 200,000 pounds. Axial capacity is 300,000 pounds.

The assembly is approximately six feet wide, ten feet long, four feet high and weighs in excess of 26,000 pounds.

Gros-Ite Precision Engineered Spindles Offers 3-5 Day Spindle Repair Service, Complimentary Pick-Up and Limited 1-2-Year Warranty

FARMINGTON, Conn., September 23, 2005 - Gros-Ite Precision Engineered Spindles, a division of EDAC Technologies Corporation (OTC Bulletin Board: EDAC), offers a spindle repair service capable of re-conditioning any type of precision rolling element bearing or hydrostatic spindle, domestic or foreign, in as little as 3-5 Days, depending on the type of failure, more complex repairs may take up to 10-15 days. The repairs carry a limited, 1-2-year warranty on most spindles. In addition, Gros-Ite will arrange, through its carrier, the pick-up of any spindle 300 lbs. or less at no charge. For spindles weighing 300 lbs. or more, Gros-Ite will pay the pick-up charges covering the first 300 lbs.

Rebuilt spindles' dimensions are returned to print specifications, or better, for trouble-free operation, as well as dynamically balanced to the tightest balancing tolerances in the industry, then re-assembled in a certified Class 10,000 clean room to ensure complete bearing integrity. Repairs also include thorough testing for vibration and temperature.

"Our repair service can actually improve the capability of most spindles, increasing their productivity, as well as lowering customers' maintenance costs," said Gary Mankus, Technical Sales Manager. "Our skilled craftsmen make repairs quickly and promptly but with the same concern for quality shown to our own new spindle products. And we stand behind every rebuild with our 1-2-year warranty."

EDAC Technologies Corporation is a designer and manufacturer of tools, fixtures, jet engine components, injection molds and spindles. The company's Gros-Ite Precision Engineered Spindles division designs, manufactures and repairs precision rolling element bearing and hydrostatic spindles for grinding, boring, milling and similar rotating devices for a wide variety of industrial applications. To contact the Spindles division, call (800) 851-2564; Fax: (860) 677-7344; E-mail: info@spindles.net; Web: www.spindles.net. EDAC Technologies Corporation is located at 1806 New Britain Avenue, Farmington, CT 06032; Tel: (860) 677-2603.

Gros-Ite Precision Motorized Rotary Tables

Gros-Ite Precision Spindle is pleased to offer it's new series of Motorized Rotating Tables for use as indexing tables or precision worktables on grinding, milling, or other precision rotating equipment.

The table features an integral rotating union, available in either single or dual passage for the transfer of either coolant or hydraulic fluid to the table surface. With the use of the dual passage rotating union, hydraulic fluid can be brought to the table surface while the table is rotating to operate hydraulically actuated clamps or clamping fixtures.

The tables are powered by Kollmorgen Brushless DC motor technology that allows for operation in either indexing or velocity mode.

The motors are liquid cooled. The liquid cooling is accomplished by circulating temperature conditioned coolant or oil around a specially designed cooling jacket that surrounds the motor.

Depending upon the application, the bearings may either be grease lubricated or lubricated via an Oil-Air Lubrication System.

Runout accuracies of .000050" are offered. The rotating tables are available in sizes from an 8" diameter tabletop to a maximum of 30" table top as well as custom configurations and designs.

Brötje in Partnership with EDAC, delivered to Boeing Phantom Works an Advanced Friction-Stir Welding Machine...

FOR IMMEDIATE RELEASE: FARMINGTON, Conn., March 1, 2006 - EDAC Technologies Corporation (OTC Bulletin Board: EDAC.OB)

Boeing Phantom Works will use a sophisticated new friction-stir welding machine purchased from Brötje-Automation GmbH to develop better ways to efficiently build stronger, lighter and more complex-shaped components for aerospace products.

In response to Boeing specifications, Brötje-Automation designed and built an eight-axis machine that is 88 feet long, 30 feet wide and generates four tons of force. It employs an advanced spindle design, process instrumentation, and control algorithms to produce contoured structural components up to 33 feet long, 13 feet wide and 5 feet tall.

Brötje-Automation produced the machine in partnership with Gros-ite Precision Engineered Spindles, a division of EDAC Technologies of Farmington, Conn., which provided the co-axial spindle; Siemens AG of Erlanger, Germany, which provided the control system; and with HBM GmbH of Darmstadt, Germany, for the instrumentation.

Boeing Phantom Works is the advanced R&D unit of The Boeing Company. As an element of Boeing Technology, it provides advanced system solutions and innovative, breakthrough technologies to the company's business units that reduce cycle time and cost while improving the quality and performance of aerospace products and services. In addition to its own development work, Phantom Works collaborates with universities, companies, and organizations around the globe to ensure it is finding the best technology solutions the world has to offer.

About EDAC Technologies Corporation EDAC Technologies Corporation
is a diversified manufacturing company primarily offering (i) design and manufacturing services for the aerospace industry in such areas as jet engine parts, special tooling, equipment, gauges and components used in the manufacture, assembly and inspection of jet engines (ii) high-precision fixtures, gauges, dies and molds and (iii) the design, manufacture and repair of precision spindles, which are an integral part of numerous machine tools found in virtually every manufacturing environment.

Contact:
Glenn Purple
EDAC Technologies Corporation
860-679-7418