Collapsible Core & Collapsible Minicore - Roehr Tool Corporation

COLLAPSIBLE CORECC 602 P.C. Core Dimensions (cont.)CENTER SCREWS ONMIDDLE OF LARGESEGMENT2.38MAXSET-UP FOR GRINDINGREFER TO GRINDING INFORMATION 1.750(NOTE 4)±.005Ø4.75 Ø3.75USE SCREWS TOALIGN CORE ON PININDICATE HERE FORGRINDING .003 MAX T.I.R.NOTES:1. Center pin to project .045 minimum/.075 maximum above frontface of Collapsible Core with .020 R minimum at corners. Seesuggested partial mold assembly view.2. Both ends of center pin to be cut off after grindingcontour on Collapsible Core before assembly in mold.3. Minimum suggested I.D. of thread or undercut is 2.060-S to giveminimum steel support between depth of undercut and center pin.4. The 1.750 ±.005 dimension must be held in mold assembly andcore grinding.5. Consult Grinding Instructions.6. A 1/16 radius is essential on the inside corners of the stripperinsert, especially where shut-off contacts Collapsible Core.7. Thread must never be run out of face of core, leaving aknife-edge of material. For complete instructions, refer toDesign Procedures.8. Do not use center pin as a pilot into “A” half of mold.Questions? Call Roehr Tool Corporation at 978-562-4488 or Toll Free at 877-563-1912.72