BLUE VALLEY MACHINE AND MANUFACTURING COMPANY, INC.

Model 87 Elliptical Head Shearing and Flanging Machine

Over the past 50 years, Blue Valley Elliptical Head machines have set the industry standard for quality, dependability and productivity. Today's Model 87 continues that tradition of excellence. Used primarily for truck and trailer tank heads, the Model 87 is readily adaptable to the manufacturing of other shapes and products, and for a variety of shearing and flanging needs. Using a template of 1/8 " (3 mm) thick material shaped and sized to finished dimensions, the machine will shear and flange the work piece with the ability to obtain overall size and flange height in one setup. No hole is required in the work piece, but a 1" x 2" x 6" long channel must be positioned and tack welded to hold the head in place, while working. The machine is entirely self contained and all functions can be easily controlled by one operator. Three hydraulic motors and one 10-HP electric motor (for the hydraulic unit) provide the working power. A normal size tank head can be completed by one operator in approximately 10 to 15 minutes. Flat heads and dished heads [9" (230 mm); maximum depth of dish] can be sheared & flanged on the Model 87, using the equipment that is standard on the machine. Reverse dished heads can be accommodated with additional tooling. The maximum major axis diameter is 9' (2750 mm), with a maximum major / minor axis ratio of 2:1. Larger diametric capacity is optional. A 3/4" (19 mm) knuckle radius is maximum on all dished, reverse dished and flat heads. However, with the new Model 87, a 1/2" (13 mm) taller flange height can be achieved over the capabilities of previous machines.

Sketch of Model 87 Elliptical Head Machine

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