Short Workclamps
The Way to Run Wider Sheets on your Strippit Machine!
No matter what Machine you have,
Everyone Wishes it would take a Larger Sheet of Material!
The most Common Model of Strippit HECC80 Machine is the
FC1000/1, FC1000/2, and FC1000/3 Class of Machines.
These Machines have a Y-Axis Dimension of 39 inches from the "Home" Position to Die Center. Using our Short-Workclamps, you can Run up to 9 Inch Wider (48") Sheet in your Machine. Now you can Process Larger Parts on your Machine, And you can also use the 48 Inch Wide "Off the Truck" Sheet-Size of Material without Shearing!
Short Workclamps Installed on my Circuit Board-Testing
Strippit FC1000/3 Machine
Both Short Workclamps Types shown above will work on following Strippit Machines:
FC750, FC750/2 --- Allows a 39 Inch Wide (Y- Dimension) Sheet
FC1000/1, FC1000/2, FC1000/3 --- Allows a 48 Inch Wide (Y- Dimension) Sheet
Short Workclamps are also available for the FC1250/30/1500 Machine Models
which will allow up to a 60 Inch Wide Sheet (Y- Dimension) to be Processed.
Short Workclamps are Easy to Install, and
Easy to Swap Back & Forth with your Regular Long Workclamps;
--- Turn off Air Supply to Machine & Remove 2 Workclamp Air Hoses
--- Loosen 2 Bolts on each Long-Workclamp, and slide them off the T-Bar
--- Slide on the Short Workclamps on to the T-Bar and Tighten their 2 Bolts
--- Plug-In the 2 Air Hoses to Short Workclamps, and turn Air Supply back on. That's It!
--- If using "Air Over Oil Cylinder" Type, Lower Air Pressure to 50 PSI to Clamps,
Boost it back up to 90 PSI when Regular Long Workclamps are put back on Machine.
But, Please Note the Following Caveats!
1 --- You can now put a 9 Inch Larger Sheet on your Machine, but your Machine did Not Magically grow 9 Inches bigger. For instance, on a FC1000 Machine, you can Punch about 39 to 40 inches of the 48 ( Depending on how your Limit Switches are set-up).
To Punch the remaining 8 to 9 Inches, you will have to "Flip" or "Rotate" the Sheet, and Run that Part of the Sheet again with a Second-Program or the 2nd-Part of a 2-Part Run-Program.
2 --- Your Long Workclamps are about 9 3/4 Inches long, but they are Not made to any Particular Dimension. We and Strippit are only concerned that they are the Same Length, so that they do Not Cock your Sheet Out of Square.
We then Punch a Hole (usually a 2x2 Square) between the Workclamps, and Measure how much we are Off. Then we "Zero" the Y-Axis by Rotating the Resolver inside the Feedback Package on the end of the Y Servo-Motor to Eliminate the Error.
I use a 1" Dial-Indicator on a Mag-Base up against the Y Carriage. With the Machine On,
I can slowly turn Resolver inside the Feedback Package, and Watch the Indicator to
Dial-Out the Exact Error. Punch another Test Hole and Measure that you set Resolver Correctly, you should be able to set within .005" if you have a Good Y-Axis Ballscrew.
The Short Workclamps are about 5/8 Inch Long from the T-Bar, so your "Zero"
(Distance from Die-Center to the Far Edge of Sheet in Workclamps) will now be moved about 9 Inches Plus About 1/8 Inch, depending on your Short & Long Workclamp lengths.
You can Punch a Test Hole (Best done with your 2x2 Notch Unit in Station #1 that 99% of all older Strippit's have) and Measure how much you are off, then either put a
"Fudge Factor" in your Run Program, or Adjust the Y-Resolver to compensate for Error.
The newer FC1000/3 Machines with a Fanuc Control can Adjust this Error with a Parameter or Grid-Shift Change in the Control's Memory. Consult your Machines Control Maintenance and Programming Manuals on how to do this.
We build Short Workclamps to Order. Allow about 2 weeks delivery Time from order,
so order them before you need them, Not When!
This page was last updated: May 21, 2008
There are 2 Kinds of Short Work Clamps. Both Types work well.
The "Double-Air Cylinder" Type Show Above,
which we have available as Brand-New Short Workclamps.
And the "Air Over Oil Intensifier-Cylinder" Type that Strippit Made Years-Ago,
and that we sometimes have available as Used. This Type is Shown Below.
A Used Pair of Strippit
"Air Over Oil Intensifier-Cylinder" Short Workclamps.
A Air-Piston Inside Cylinder Moves a Smaller Oil Hydraulic Piston to give Very Powerful Clamp Pressure.
So Powerful that a Small In-Line Air Regulator (Set to 50 PSI) Must be Installed Physically just Before the "T-Fitting" that sends Air to the 2 Short Workclamps. This Lower Air Pressure is Required to keep the Lower Jaws on this Type of Clamp from being Broken by the High Downward Clamp Pressure.
Note,
a Air Regulator is Not Required on the "Double-Air Cylinder" Type of Short Workclamp. These use Full Air Line Pressure.
Use a Miniature Air Regulator with the Above
"Air Over Oil Intensifier Cylinder" Type Short Workclamps,
like this Grainger #4ZM07 or Similar,
which has 1/4" N.P.T (National Pipe Thread) Inputs & Outputs.
Remember to also get the 1/4" Air-Tube to 1/4" N.P.T. Air-Fittings, some Thin-Wall 1/4" Air-Tubing, and a Air Gage to Set the Pressure.
We now have Short Workclamps for the
"R" & "H' Type Strippit Machines.
Like the following Strippit Machine Models;
--- FC630R --- FC1250R
--- FC1000R --- FC1250R/2
--- FC1000R/2 --- FC1250XP
--- FC1000R20 --- FC1250XP20
--- FC1000XP --- FC1250H20
--- FC1000XP20
--- FC1000H20
These Short-Workclamps, Show Above,
will Move the Part-Sheet Back about 7.5 Inches in the Y-Axis
allowing you to run Wider Sheets.
You just Slide Workclamps onto Machine & Hook-Up Air Hoses to Install.
