| IMS Forged-Steel, Open-Toe Mold Clamps are made expressly for use on injection
molds. Most injection molds have a standard 29/32" clamping flange that permits
use of the IMS Model FO5 (Forged Open Toe 5" long) and Model FO7 (7" long) Mold
Clamps without use of the adjusting screw. The method of clamping mold bases with
flanges from 29/32" down to 1/2" can be seen on the Adjustable
Mold Clamp Installation Options page. The 3-5/8" long hold down bolt
(B8) allows ample thread holding power. Where the mold clamping flange is
29/32" or more (up to 2") use a longer bolt (B10 or B11) 4-3/16". For mold
flanges thicker than 2", special bolts are required to avoid stripping platen
hole threads. Ask for prices.
About Model FO5 and FO7 Mold Clamps
Open Toe Mold Clamps are designed for use on injection molds where clamps are
slipped off the bolts during mold changes. Closed toe clamps on the other hand,
allow the clamp to hang safely on the bolt during mold changes. Specify Closed
Toe (Model FC5 and FC7) where set-up men follow this practice.
IMS Model FO5 and FO7 mold clamps are designed for use with full strength hold
down bolts with 5/8"-11 or 3/4"-10 threads and preferably with IMS Forged
No-Turn Washers.
Bolts B7 and B8, 3-5/8" long and B10 or B11, 4-3/16" long are expressly made to
cover these clamps when used with any mold flange 1/2" to 2" thick.
| Warning to users of any adjustable mold clamp: Use the
right length bolt to avoid stripping platen hole. Strive for thread engagement
length of at least 1-1/2 times the diameter thread. |
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| When clamping standard 29/32" flanges, use the clamps heel down
without the adjusting bolt. In selecting clamps, utilize the quarter or half
scale drawings to size the clamp and bolt to your mold flange to avoid
stripping the platen hole threads. DO
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Use Model FO5 and FO7 clamps without the adjusting bolt, heel down on all
29/32" standard flanges.
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Use the anti-spread, forged, no-turn washer, as the is grips the clamp toes and
prevents any possibility of deforming the clamp as happens with cheaper, open
toe, machine types which should NOT be used on injection molds.
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Select the right bolt length to avoid stripping platen hole threads. (See
Mold Clamps 101).
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Use a torque wrench to avoid spoiling platen hole threads.
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Set the adjusting screw height properly. The clamp should be exactly parallel
to the platen and the adjusting screw head should be flat on the platen to
avoid marring the die plate surface.
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use some type of lubricant on platen bolt holes such as IMS copper Flake.
DO NOT
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Do NOT allow mold set-up men to use soft steel, round washers on open toe
clamps of any type.
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Do NOT clamp flanges thicker than 2" without using the proper length bolts. you
can order special-length hold down bolts from IMS when necessary.
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Do NOT fail to check thread engagement length on all adjustable mold clamps.
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