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.

75 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.)
M75D24L 2012559 75 64.44 57.75 11.09 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1231
M75D24M 2012563 75 64.44 57.75 18.84 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1936
M75D24H 2012567 75 64.44 57.75 22.84 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2399
M75T20L 2012571 75 60.94 54.25 11.12 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1202
M75T20M 2012575 75 60.94 54.25 15.62 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1502
M75T20H 2012579 75 60.94 54.25 19.62 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1845
M75T24L 2012583 75 64.44 57.75 11.12 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1385
M75T24M 2012587 75 64.44 57.75 18.88 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2090
M75T24H 2012591 75 64.44 57.75 22.88 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2553
M75Q16L 2012596 75 57.19 50.50 13.31 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 - - 893
M75Q16M 2012600 75 57.19 50.50 17.44 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 - - 1049
M75Q16H 2012604 75 57.19 50.50 19.44 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 - - 1195
M75Q18L 2012595 75 58.94 52.25 13.31 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1179
M75Q18M 2012599 75 58.94 52.25 17.81 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1405
M75Q18H 2012603 75 58.94 52.25 21.81 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 - - 1543
M75Q20L 2012607 75 60.94 54.25 13.31 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1267
M75Q20M 2012611 75 60.94 54.25 17.81 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1567
M75Q20H 2012615 75 60.94 54.25 21.81 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 - - 1910
M75Q24L 2012619 75 64.44 57.75 13.31 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 1503
M75Q24M 2012633 75 64.44 57.75 21.06 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2208
M75Q24H 2012627 75 64.44 57.75 25.06 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 - - 2671
M75QN16L 2012631 75 61.56 50.50 18.25 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1238
M75QN16M 2012635 75 61.56 50.50 22.62 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1394
M75QN16H 2012639 75 61.56 50.50 25.12 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 1.66 1540
M75QN18L 2012632 75 63.31 52.25 18.25 22.25 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 1.66 1438
M75QN18M 2012636 75 63.31 52.25 22.38 22.25 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 1.66 1664
M75QN18H 2012640 75 63.31 52.25 24.38 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 1.66 1802
M75QN20L 2012643 75 65.94 54.25 18.25 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1498
M75QN20M 2012647 75 65.94 54.25 22.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1798
M75QN20H 2012651 75 65.94 54.25 26.75 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 2141
M75QN24L 2012655 75 69.44 57.75 18.25 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 1.50 2.06 2060
M75QN24M 2012659 75 69.44 57.75 26.00 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 1.50 2.06 2785
M75QN24H 2012663 75 69.44 57.75 30.00 28.75 5.38 6.69 4.25 7/8, 1, 1 1/8, 1 1/4 1.50 2.06 3228
M75SX16L 2012668 75 61.56 50.50 20.41 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 2.06 1254
M75SX16M 2012672 75 61.56 50.50 24.78 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 2.06 1384
M75SX16H 2012676 75 61.56 50.50 27.28 20.25 5.38 6.69 4.25 9/16, 5/8, 3/4, 7/8 1.50 2.06 1530
M75SX18L 2012667 75 63.94 52.25 20.41 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 2.06 1576
M75SX18M 2012671 75 63.94 52.25 24.53 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 2.06 1812
M75SX18H 2012675 75 63.94 52.25 26.53 22.75 5.38 6.69 4.25 5/8, 3/4, 7/8, 1 1.50 2.06 1950
M75SX20L 2012679 75 65.94 54.25 20.41 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 1845
M75SX20M 2012683 75 65.94 54.25 24.91 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 2144
M75SX20H 2012687 75 65.94 54.25 28.91 24.75 5.38 6.69 4.25 3/4, 7/8, 1, 1 1/8 1.50 2.06 2486

* 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.