McKissick Utility Crane Blocks

380 Series Hook Blocks

Key to McKissick
Utility Crane Block Model Numbers
M 10 S 10 L
McKissick
Utility
Crane
Blocks		 Working
Load
Limit
(Tons)		 Number
of
Sheaves		 Sheave
Nominal
O.D.		 Block
Weight
    S=1
D=2
T=3
Q=4		 QN=5
SX=6
SV=7
OCT=8		   L=Light
(No Cheek Weight)
LM=Light Med.
M=Medium
H=Heavy

 

Table 1 - Standard Wire Line Sizes
For McKissick 380 Utility Crane Blocks
Sheave
Diameter
(in.)		 Wire Line Size
(in.)
7/16 1/2 9/16 5/8 3/4 7/8 1 1 1/8 1 1/4
10 • • • • . . . . .
12 . • • • • . . . .
14 . • • • • . . . .
16 . . • • • • . . .
18 . . . • • • • . .
20 . . . . • • • • .
24 . . . . . • • • •
* For additional wire line sizes, please call Crosby's Special Engineered Products Group at 1 (800) 777-1555.

70 Tons

Model
No.		 Inquiry
Stock
No.		 Working
Load
Limit
(tons) §		 A
Overall
Length
(in.)		 B
Net
Length
(in.)		 E
Thickness
(in.)		 F
Width
(in.)		 H
Throat
Opening
With
Flapper
(in.)		 J
Hook
Thickness
(in.)		 K
Hook
Width
(in.)		 Standard Wire Line
Size *
(in.)		 Dead End §§ Weight
Each
(lbs.)
T
Thickness
(in.)		 U
Pin Hole
(in.)
M70D24L 2012379 70 64.44 57.75 11.09 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1006
M70D24M 2012383 70 64.44 57.75 18.84 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1711
M70D24H 2012387 70 64.44 57.75 22.84 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2174
M70T18L 2012391 70 58.94 52.25 11.12 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 916
M70T18M 2012395 70 58.94 52.25 15.25 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1142
M70T18H 2012399 70 58.94 52.25 17.25 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1280
M70T20L 2012403 70 60.94 54.25 11.12 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 994
M70T20M 2012407 70 60.94 54.25 15.62 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1294
M70T20H 2012411 70 60.94 54.25 19.25 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1637
M70T24L 2012415 70 64.44 57.75 11.12 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1197
M70T24M 2012419 70 64.44 57.75 18.88 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1902
M70T24H 2012423 70 64.44 57.75 22.88 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2365
M70Q16L 2012427 70 57.19 50.50 13.31 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 - - 848
M70Q16M 2012431 70 57.19 50.50 17.69 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 - - 1004
M70Q16H 2012435 70 57.19 50.50 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 - - 1150
M70Q18L 2012439 70 58.94 52.25 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1047
M70Q18M 2012443 70 58.94 52.25 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1273
M70Q18H 2012447 70 58.94 19.44 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1411
M70Q20L 2012451 70 60.94 13.31 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1149
M70Q20M 2012455 70 60.94 17.81 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1449
M70Q20H 2012459 70 60.94 21.81 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1762
M70Q24L 2012463 70 64.44 13.31 28.75 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1390
M70Q24M 2012467 70 64.44 21.06 28.75 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2095
M70Q24H 2012471 70 64.44 25.06 28.75 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2558
M70QN16L 2012475 70 64.56 18.25 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 899
M70QN16M 2012479 70 64.56 22.62 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1055
M70QN16H 2012483 70 64.56 25.12 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1201
M70QN18L 2012487 70 63.31 18.25 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 1.66 1311
M70QN18M 2012491 70 63.31 22.38 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 1.66 1537
M70QN18H 2012495 70 63.31 24.38 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 1.66 1675
M70QN20L 2012499 70 65.94 18.25 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1484
M70QN20M 2012503 70 65.94 22.75 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1784
M70QN20H 2012507 70 65.94 26.75 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 2127
M70QN24L 2012511 70 69.44 18.25 28.75 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 1.50 2.06 1830
M70QN24M 2012515 70 69.44 26.00 28.75 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 1.50 2.06 2535
M70QN24H 2012519 70 69.44 30.00 28.75 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 1.50 2.06 2998
M70SX16L 2012523 70 61.56 20.41 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1002
M70SX16M 2012527 70 61.56 24.78 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1158
M70SX16H 2012531 70 61.56 27.28 20.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1304
M70SX18L 2012535 70 63.94 20.41 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 2.06 1410
M70SX18M 2012539 70 63.94 24.53 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 2.06 1636
M70SX18H 2012543 70 63.94 26.53 22.75 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 2.06 1774
M70SX20L 2012547 70 65.94 20.91 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1460
M70SX20M 2012551 70 65.94 24.91 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1760
M70SX20H 2012555 70 65.94 28.91 24.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 2103

* Additional wire line sizes available upon request.
§ Ultimate Load is 4 times the Working Load Limit unless otherwise noted.
§§ Dead End dimensions for Multi-Sheave Blocks are shown here.

Specify Wire Line Size When Ordering. For Standard Wire Line Sizes See Table 1 above.