Mechanical Shear with Automatic Gap Control 

For Use in Cut-to-Length Line

Type:                      Down-cut 

Strip Thickness:           0.060" - 0.500" (Mild Steel)

Blade:                     Carbon Steel Knife, Single Rake 

Blade Gap Control:         Motorized 

Lubrication:               Centralized and Manual Grease 

Kick out Roll:             Hydraulic Gear Motor 

Construction:

The Shear consists of the main housing, over driven clutch/brake 

flywheel arrangement, camshaft, sliding frame, top and bottom blade

holder, gap control and kick-out roll assembly.

Main Housing:

The main housing and base are of fabricated steel construction.  The 

housing incorporates cam rollers to support and guide the sliding frame

in its travel.  The main housing also supports the camshaft, clutch and 

brake assembly and drive.

Blade Holders:

The upper and lower blade holders are of heavy steel plate construction,

machined to accept the blade.  The (upper) sliding frame is connected 

to the camshaft via pitmans running in large bronze bushings.

Camshaft:

The alloy precision machined camshaft is supported in roller bearings in the

housing and, in turn supports the clutch-brake and flywheel assembly.  The 

camshaft drives the pitmans which give the vertical motion to the sliding 

frame.

Automatic Gap Control:  

The blades will automatically be set, by input from the PLC, to the 

proper clearance for the material being processed.  An operator override 

is provided.

Drive:

The Flywheel is driven via vee belts and a pulley mounted on the drive motor.

The flywheel has the clutch/brake assembly mounted to it which when actuated 

will turn the camshaft to initiate the cut cycle.

Kickout Rolls:

Pinch Rolls are mounted ahead of the shear blades to assist transporting the 

tail of the strip through the shear.  The rolls run in grease lubricated 

bearings and are supported in fabricated steel housings.

The lower roll is full width and the upper roll partial width, pivoted up 

and down through a pneumatic cylinder.  The lower roll is driven via a hydraulic 

gearmotor.

Controls:

This shear is controlled by a rotary electronic limit switch blade position 

system.  The cut signal when received from the measuring control system 

will initiate the shear cycle.  After the cut, the shear will cycle back 

to its ready position.

Hydraulic Power:

Hydraulic Supply from Main Power Unit.