Collapsible Core & Collapsible Minicore - Roehr Tool Corporation

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COLLAPSIBLE CORECC 200 P.C. Core Dimensions(CIRCULAR STEP DETAIL)35MIN DRAFT PER SIDE.030 FLAT MIN(NOTE 7)15.010STRIPPER INSERT.010R.008 MIN(NOTE 1).030 FLATR.03PARTIAL MOLDASSEMBLYP.C. SLEEVECOLLAPSIBLE CORECENTER PIN.015 MIN.075 MAX.9751.150.030 CLEARANCE.030 CLEARANCE.150 MIN/.250 MAX SHUT OFF HEIGHTDO NOT USE TAPER SHUT OFFØ.470MIN.13 MIN60° C’SINKBOTH ENDSFOR GRINDINGØ1.270MINSTK.975±.005Ø.785.25NOMØ2.000NOM7.315±.0035.200 NOMØ2.177NOM Ø1.436±.0011.938 ±.005(NOTE 4).249 ±.001±.001Ø1.000.56MINØ.437COOLINGHOLE.043 COLLAPSE MINAT FACECENTER PINCOLLAPSIBLE COREP.C. SLEEVE.188NOMØ1.750+.000-.010Ø1.250+.000-.010Questions? Call Roehr Tool Corporation at 978-562-4488 or Toll Free at 877-563-1912.31
COLLAPSIBLE CORECC 200 P.C. Core Dimensions (cont.)1.150MAXSET-UP FOR GRINDINGREFER TO GRINDING INFORMATION±.0051.562(NOTE 4)Ø2.63Ø1.88CENTER SCREWS ONMIDDLE OF LARGESEGMENTUSE SCREWS TOALIGN CORE ON PININDICATE HERE FORGRINDING .003 MAX T.I.R.NOTES:1. Center pin to project .015 minimum/.075 maximum above frontface of Collapsible Core with .008 R minimum at corners.2. Both ends of center pin to be cut off after grinding contour onCollapsible Core before assembly in mold.3. Minimum suggested I.D. of thread or undercut is .910-S to giveminimum steel support between depth of undercut and center pin.4. The 1.938 ±.005 dimension must be held in mold assembly andcore grinding.5. Consult Grinding Instructions.6. A 1/32 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 a knife edgeof material. For complete instructions, refer to Design 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 877-563-1912.32
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Collapsible Core & Collapsible Minicore - Roehr Tool Corporation

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