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.

300 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.)
M300SX30L 2013456 300 93.25 77.38 28.50 36.50 6.25 10.62 7.25 1, 1 1/8, 1 1/4, 1 3/8 2.25 2.53 7274
M300SX30M 2013460 300 93.25 77.38 32.50 36.50 6.25 10.62 7.25 1, 1 1/8, 1 1/4, 1 3/8 2.25 2.53 8154
M300SX30H 2013464 300 93.25 77.38 34.50 36.50 6.25 10.62 7.25 1, 1 1/8, 1 1/4, 1 3/8 2.25 2.53 8724
M300SV24L 2013457 300 87.25 71.38 36.00 28.75 6.25 10.62 7.25 7/8, 1, 1 1/8, 1 1/4 2.25 2.53 6459
M300SV24M 2013461 300 87.25 71.38 43.75 28.75 6.25 10.62 7.25 7/8, 1, 1 1/8, 1 1/4 2.25 2.53 7163
M300SV24H 2013465 300 87.25 71.38 47.75 28.75 6.25 10.62 7.25 7/8, 1, 1 1/8, 1 1/4 2.25 2.53 7628
M300OCT30L 2013527 300 93.25 77.38 36.00 36.50 6.25 10.62 7.25 1, 1 1/8, 1 1/4, 1 3/8 2.25 2.53 10145
M300OCT30M 2013531 300 93.25 77.38 38.00 36.50 6.25 10.62 7.25 1, 1 1/8, 1 1/4, 1 3/8 2.25 2.53 10887
M300OCT30H 2013535 300 93.25 77.38 39.00 36.50 6.25 10.62 7.25 1, 1 1/8, 1 1/4, 1 3/8 2.25 2.53 11592

* 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.