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GUTTER MACHINE TERMINOLOGY


Entry end - the end of the gutter machine into which the material is fed, the end with the black curved guides; also called the front end or feed end.


Exit end - the end of the gutter machine from which the finished gutter profile emerges,  the end with the shear; also called the rear end or discharge end.


Forming rolls - the rotating contoured dies used to both drive the material through the gutter machine and form the finished gutter profile; also called forming dies, rolling dies, rollers. 


Left side - when viewing from the entry end of the gutter machine, the side located to the left. 


Right side - when viewing from the entry end of the gutter machine, the side located to the right. Also called the “Box Side.” 


Station # - forming stations are numbered sequentially from the entry end to the exit end of the gutter machine. 


Crash – a condition in which any of the following problems may exist: 


  • metal will not move through the gutter machine
  • metal is bent or crumpled against a fixed component in the gutter machine
  • metal is bunching up between forming stations
  • the drive train is seized

PROFILE SPECIFIC TERMS:


The profile is normally described as if it were being viewed from the entry end of the gutter machine as the material runs:


Away from the house - profile is horizontally level, but curves toward the front, or box side, of the gutter.


Downhill - the profile runs laterally strait, but curves downward as it exits the gutter machine; also referred to as having a crown in the profile.


Into the house - profile is horizontally level, but curves toward the backside of the gutter.


Left - the profile is horizontally level, but curves to the left as it exits the gutter machine.


Right - the profile is horizontally level, but curves to the right as it exits the gutter machine.


Twist - one end of the profile rotates away from the other end.


Uphill - the profile runs laterally strait, but curves upward as it exits the gutter machine.


MATERIAL/COIL RELATED TERMS:


Camber - lateral curvature in coil stock - camber may lead to an inconsistent profile.


Coil Set - longitudinal curvature induced in coil stock due to the winding or coiling process - excessive coil


set may cause rippling in the gutter profile.


Edge wave - a ripple-like effect on the edge of the material - often caused by the slitting process.


Gauge - term used to reference the thickness of steel material per AISI thickness tolerance ranges - ex: 24


Ga = .0276" thick


Long-centered - center of the coil stock strip slightly longer than the edges - often results from the


Heating and cooling process


Oil canning - a periodic pattern of buckling appearing on flat sections of a profile - often results from coil


Set.


Width - the lateral width of coil stock material - also called strip width or stretch-out.


UNITS:


Standard Units:


in – inches (unit of length)


lbs – pounds (unit of weight)