72" HALLDEN FLYING SHEAR - $30,000

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Type #55 Hallden Automatic Flattening and Cutting Machine, equipped 

with a Rocker type of Guillotine Flying Shear, suitable to take metal from 

coil, flatten same and cut it accurately into pre-determined lengths. 

SHEAR HEAD: 

• This unit is a Rocker Guillotine type of design, constructed of steel 

casings. THE ENTIRE SHEAR HEAD ASSEMBLY IS MOUNTED 

ON HEAVY DUTY ROLLER BEARINGS. Standard type of shear 

knives are used. Each blade having four cutting edges, and the top 

and bottom blades being inter-changeable. One pair of shear blades is 

furnished with the machine. 

FLATTENER: 

• A ten roll Flattener, with two pair of pinch rolls. Center to center of 

Flattening rolls: 4-1/2". Diameter of Flattening rolls: 4-3/8". Face 

of rolls: 72". The rolls are constructed of an alloy steel, hardened 

and ground to a Scleroscope of between 90 and 95. 'The rolls are 

driven by couplings from a Single helical Gear box. 

GEAR BOX DRIVE FOR ROLL STAND: 

• Designed with single helical, 23 degree gears, mounted on Timken 

bearings. 

LENGTH CONTROL: 

• The pre-determined length may be obtained by turning a crank, 

which moves the indicator on a scale to the desired point. The length 

may be changed while the machine is in operation. The load, 

temperature, or speed of the machine will not effect the accuracy of 

the cut. 

SHEAR KNIVES: 

• 1-1/2" x 4-1/2" x 72". 

ACCURACY: 

• The machine is designed to cut the metal into any length to an 

accuracy of 1/32".

GEAR HOUSINGS: 

• All Main Drive Gears are totally enclosed in Gear Housings, forced 

feed lubricated and mounted on anti-friction bearings. 

GEARS: 

• All gears are constructed of a special alloy steel, heat-treated to a 

proper degree of hardness. All fast running gears are either single 

helical or double helical. 

GAUGES: 

• Maximum gauge on high tensile aluminum: .064". 

LENGTHS: 

• Minimum length: 30". Maximum length: 35'. 

MAIN BASE: 

• Constructed of welded steel 

HOUSINGS: 

• Welded steel and Farrel-Birmingham's "Meehanite" castings. 

LUBRICATION: 

• Forced oil lubrication is used wherever possible, all other bearings 

are lubricated with a Centralized Manual Oiling System. 

FLEXIBLE COUPLINGS: 

• The machine will be fitted with Fast type of Couplings. 

SPEED: 

• The machine is designed for any speed from 100 ft. to 300 ft. per 

minute. 

BUFFS: 

• The Roll Stand is to be fitted with Alcoa type of Buffs, the same as 

furnished on previous Shears both for Alcoa and Edgewater. 

WEIGHT: 

• About 85,000 pounds. 

MOTORS: 

• One 100 H.P. motor, 400 to 1200 RPM. 

• One 2 H.P. motor, constant speed, for oil pump. 

ELECTRIC: 

• Avtron model ADVANTAGE 32 DC drive system, 100 H.P., 230 

VDC., consisting of: 

• 1 - 175 KV A isolation transformer. 

• 1 - Model # DC0550-4BNO-C SCR controller. 

• 1 - lEC rated single pole contractor.