Safety Tongs
MIFCO CRUCIBLE TONGS ARE DESIGNED AND
MANUFACTURED ACCORDING TO RECOMMENDATIONS
OF THE CRUCIBLE MANUFACTURERS ASSOCIATION.
Correctly designed tongs provide maximum safety and crucible
life.
Lifting a thirty-pound melt of aluminum
with a No. 30 Bent Crucible Tong.
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Starting with #40B, all tongs have lifting eyebolt designed
with spacer bearing to maintain alignment and remain tight. Claw type grippers
are die formed to fit the contour of the crucible and apply even pressure.
All tongs are built with adjustable stop to prevent excess gripper
pressure against the crucible walls. Excessive pressure can crush a crucible
of molten metal. Steel webs add rigidity and strength.
The tongs can be locked open, or closed, with the locking latch.
Once crucible is secured in the tongs it cannot be dropped.
Correct top clearance prevents pinching and chipping the crucible
lip. Improper clearance at this point is the major cause of crucible failure.
Plain Crucible Tongs
With lifting eye bolt (40P and larger) and locking latch bar.
All tongs are sized to fit bilge crucibles.
| Part Number |
Tong Number |
Crucible Size |
Approx. Wt. |
| 030510 |
10P |
10 |
19 lbs. |
| 030520 |
16P |
16 |
20 lbs. |
| 030530 |
20P |
20 |
22 lbs. |
| 030540 |
30P |
30 |
28 lbs. |
| 030550 |
40P |
40 |
36 lbs. |
| 030560 |
50P |
50 |
43 lbs. |
All tongs are designed to allow room to set the crucible into
the
furnace chamber and withdraw it for pouring.
Bent Handle Crucible Tongs
Bent Handle Crucible Tongs, Size 40 and larger, will have links and
ring as well as bent handles for two man handling. Handle bent 90°,
rings furnished to engage hoist. Eye bolts also furnished on Size 40 Bent
Handle Tongs and Larger.
| Part Number |
Tong Number |
Crucible Size |
Approx. Wt. |
| 030495 |
4-0000 |
#4-0 / #P-3 |
2 lbs. |
| 030600 |
10B |
10 |
19 lbs. |
| 030610 |
16B |
16 |
20 lbs. |
| 030620 |
20B |
20 |
22 lbs. |
| 030630 |
30B |
30 |
28 lbs. |
| 030640 |
40B |
40 |
38 lbs. |
| 030650 |
50B |
50 |
45 lbs. |
| 030660 |
670B |
60 thru 70 |
58 lbs. |
| 030670 |
890B |
80 thru 90 |
78 lbs. |
| 030680 |
1025B* |
100 thru 125 |
95 lbs. |
| 030690 |
150B |
150 |
105 lbs. |
*Cannot use with a T-80 Furnace.
All tongs are designed to fit bilge crucibles.
Lifting Tong for Bowl Crucibles
Used for setting and removing bowl crucible.
For Safety's Sake
One of the
greatest hazards in foundry work is the danger of dropping a crucible of molten
metal. The MIFCO Safety Shank was developed
by our engineers at the request of school administrators, to help eliminate
this hazard. It is simple in design, yet easy to operate, and holds the
crucible securely. This prevents the accidental dropping and dumping of
a crucible of molten metal. The Safety Design has been tested thoroughly
in school shops and commercial foundries, where safety regulations specify
its use. It is available in both the Hand Shank and the two-man Single End
Shank.
Crucible Shanks
Crucible shanks are foundry tools used to hold the crucible of molten
metal while pouring the molds. Shanks are made in two standard designs -
the one man Hand Shank and the two-man Single End Shank.
Illustration shows Adjustable Safety
Single End Pouring Shank with bail.
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- Crucible rings are die formed to shape and size, insuring correct fit
at point below bilge diameter of crucible.
- Supporting pads placed inside ring for four-point suspension. Design
provides air space between crucible and ring. This prevents heat transfer
from crucible to band and adds to the service life of crucible and shank.
- All Single End shanks are offset to provide better balance of the crucible
when pouring.
- Tubular handles for light weight and strength. Handle length and tubing
size varies with size shank.
- Crucible shank bails available for handling large crucible with hoist
and trolley.
Using these basic design features, MIFCO developed and added the spring
loaded latch as a locking device for the Safety Series.
OUTSTANDING FEATURES OF THE SAFETY SHANKS ARE:
Adequately Held - The spring-loaded locking device holds the crucible
so securely in place, it can be completely inverted while pouring. Larger
sizes are equipped with double locks.
Simple in Design - Simplicity of design insures positive action
and dependable operation.
Easy to Use - The locking arms swing clear of the shank ring and
in no way impedes the loading of the crucible. The latch handle is conveniently
located on the shank handle.
More Efficient - Entire contents of the crucible can be poured
without the risk of dropping the crucible.
Labor Saving - Eliminates need for additional help to hold crucible
in shank ring while pouring.
Three Types of Safety Pouring Shanks
SAFETY LOCK - PLAIN - ADJUSTABLE SAFETY LOCK
SAFETY HAND CRUCIBLE SHANK
| Part Number |
Shank Number |
Crucible Size |
Approx. Wt. |
| 030010 |
S10H |
10 |
8 lbs. |
| 030030 |
S16H |
16 |
8 lbs. |
SAFETY SINGLE CRUCIBLE SHANKS
| Part Number |
Shank Number |
Crucible Size |
Approx. Wt. |
| 030110 |
S10SE |
10 |
12 lbs. |
| 030130 |
S16SE |
16 |
13 lbs. |
THE SAFETY LOCK SHANK was developed to prevent the accidental
dropping of a crucible of hot metal. It is highly recommended for school
shop use. Made in both hand and single end models, the safety lock shanks
are sized to fit one size clay graphite crucible.
THE ADJUSTABLE SAFETY LOCK SHANK is furnished in hand or single
end shanks. Each size shank can be adjusted to fit two or more sizes of
clay graphite or silicon carbide crucibles. Adjustable support pads placed
inside shank band provide four point suspension. Positive adjustment is
easily and quickly made. Loosen lock nuts, move pads to desired position,
then tighten lock nuts.
Double Latch starts at
S450SE and larger.
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Double Latch starts at S450SE and larger.
ADJUSTABLE SAFETY SINGLE END SHANKS
| Part Number |
Shank Number |
Crucible Size |
Approx. Wt. |
| 030300 |
S116SE |
10 thru 16 |
15 lbs. |
| 030310 |
S230SE |
20 thru 30 |
22 lbs. |
| 030320 |
S450SE |
40 thru 50 |
31 lbs. |
| 030330 |
S670SE |
60 thru 70 |
40 lbs. |
| 030340 |
S890SE |
80 thru 90 |
52 lbs. |
| 030350 |
S1050SE |
100 thru 150 |
65 lbs. |
NOTE: Order All Shanks By Shank Number
Double Latch starts at S450DE and larger.
ADJUSTABLE SAFETY DOUBLE END SHANKS
| Part Number |
Shank Number |
Crucible Size |
Approx. Wt. |
| 030440 |
S116DE |
10 thru 16 |
25 lbs. |
| 030450 |
S230DE |
20 thru 30 |
32 lbs. |
| 030460 |
S450DE |
40 thru 50 |
41 lbs. |
| 030470 |
S670DE |
60 thru 70 |
50 lbs. |
| 030480 |
S890DE |
80 thru 90 |
62 lbs. |
| 030490 |
S1050DE |
100 thru 150 |
75 lbs. |
NOTE: Order All Shanks By Shank Number
