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
Width - the lateral width of coil stock material - also called strip width or stretch-out.
in – inches (unit of length)
lbs – pounds (unit of weight)