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70 SERIES BLOCKS
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McKissick Oilfield Tubing Blocks
utilizing new Split Nut Retention System
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Revolutionary new retention system eliminates conventional threaded
nut and potential problems associated with thread corrosion.
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Exclusive E-Z opening guards, no bolts to pull out and lose. Feature
gives fastest possible exposure of sheave cluster for quick reeving.
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Extremely short overall length, extra weight, excellent balance for
fast non-wobbling falls.
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Extra large sealed sheave bearing diameters for fully rated
capacities.
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Roller thrust bearing in hook.
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Duplex hook for easy elevator operation, locks in eight positions.
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Convenient rod hook clevis available.
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Completely streamlined, no projections.
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McKissick Roll-Forged, flame hardened sheaves, grooved for proper
wire line size.
Contact Crosby for additional wire line sizes.
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Threaded hook parts precision machined and individually fitted for
maximum performance.
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All blocks available with additional cheek weights.
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70 Series Tubing Blocks
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Stock No.
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Block
Config. *
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Working
Load Limit
(Tons)
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Wire Line
Size
(in.)
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Weight
Each
(lbs.)
|
|
111792
|
20" 73
|
75
|
7/8
|
1770
|
|
111890
|
20" 73-A
|
75
|
7/8
|
1815
|
|
111818
|
24" 73
|
100
|
1
|
2634
|
|
111916
|
24" 73-A
|
100
|
1
|
2750
|
|
111827
|
30" 73
|
150
|
1-1/8
|
4450
|
|
111925
|
30" 73-A
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150
|
1-1/8
|
4068
|
|
128793
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30" 74
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150
|
1-1/8
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4400
|
|
125545
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30" 74-A
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150
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1-1/8
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4462
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*Spring loaded duplex hook assuring ample travel for efficient
tubing operations. No load
carrying threads.
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