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- Crosby 70 Series & 80 Series McKissick Oilfield Tubing Blocks - Range from 50,000kg to 150,000kg

Crosby 70 Series & 80 Series McKissick Oilfield Tubing Blocks - Range from 50,000kg to 150,000kg
Oilfield Servicing, Tubing Blocks.
McKissick 70 / 80 Series / OTB-2533





The McKissick Oilfield Tubing Blocks utilising new Split Nut Retention System. Revolutionary new retention system eliminates conventional threaded nut and potential
problems associated with thread corrosion.
- Exclusive E-Z opening guards, no bolts to pull out and lose. Feature gives fastest possible exposure of sheave cluster for quick reeving.
- Extremely short overall length, extra weight, excellent balance for fast non-wobbling falls.
- Roller thrust bearing in hook.
- Duplex hook for easy elevator operation, locks in eight positions.
- Also available with Rod Hook Clevis.
- Completely streamlined, no projections.
- McKissick Roll-Forged, flame hardened sheaves, grooved to API profile for proper Wireline size. Contact Crosby for additional Wireline sizes.
- Separate lubrication channel to each sheave.
- Double row, pre-adjusted tapered bearings with seals.
- McKissick Split-Nut® hook parts precision machined and individually fitted for maximum performance.
- Manufactured to API-8C specifications.
- 35 ton Capacity Rod Hook Clevis available.
- Lock Arms with Self Retaining Bolts.
- All sizes are RFID EQUIPPED.
- The 70 Series has a spring loaded hook that is better for heavy usage and larger depths. Tends to last longer since the shock loads are somewhat absorbed.
- The 80 Series has no spring loaded hook and is better for shall ow depths and rework.
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70 Series | 80 Series |
70 Series Tubing Blocks
Stock No. | Block Config.* | Working Load Limit | Rod Hook Clevis Working Load Limit | Wireline Size (mm) | Weight Each (kg) | ||
(Tons) | (t) | (Tons) | (t) | ||||
111895 | 20" 73-A** | 75 | 68 | 12.5 | 11 | 22 | 823 |
111823 | 24" 73 | 100 | 90 | 20 | 18 | 25 | 1195 |
111921 | 24" 73-A** | 100 | 90 | 20 | 18 | 25 | 1247 |
111922 | 24" 73-AN** | 125 | 113 | 35 | 31 | 25 | 1263 |
128798 | 30" 74 | 150 | 136 | 22.5 | 20 | 28 | 1996 |
125550 | 30" 74-A** | 150 | 136 | 22.5 | 20 | 28 | 2024 |
112552 | 30" 74-AN** | 175 | 158 | 35 | 31 | 28 | 2251 |
* Spring loaded duplex hook assuring ample travel for efficient tubing operations. No load carrying threads ** A = Rod Hook Clevis attachment standard. AN = New 35 Ton Clevis.
80 Series Tubing Blocks
Stock No. | Block Config. | Working Load Limit | Rod Hook Clevis Working Load Limit | Wireline Size (mm) | Weight Each (kg) | ||
(Tons) | (t) | (Tons) | (t) | ||||
112135 | 17" 83 | 50 | 45 | 7.5 | 6.8 | 22 | 491 |
112243 | 17" 83-A** | 50 | 45 | 7.5 | 6.8 | 22 | 503 |
112252 | 20" 82-A** | 50 | 45 | 7.5 | 6.8 | 22 | 564 |
112261 | 20" 83-A** | 75 | 68 | 12.5 | 11 | 22 | 753 |
112270 | 24" 82-A** | 75 | 68 | 12.5 | 11 | 25 | 830 |
112181 | 24" 83 | 100 | 90 | 20 | 18 | 25 | 998 |
112279 | 24" 83-A** | 100 | 90 | 20 | 18 | 25 | 991 |
117498 | 24" 84-A** | 100 | 90 | 20 | 18 | 25 | 1247 |
112278 | 24" 83-AN** | 125 | 113 | 35 | 31 | 25 | 996 |
117500 | 24" 84-AN** | 125 | 113 | 35 | 31 | 25 | 1329 |
117514 | 30" 84-A** | 150 | 136 | 22.5 | 20 | 28 | 1873 |
205857 | 30" 83-AN** | 175 | 158 | 35 | 31 | 28 | 1704 |
117516 | 30" 84-AN** | 175 | 158 | 35 | 31 | 28 | 1963 |
** A = Rod Hook Clevis attachment standard. AN = New 35 Ton Clevis.
The McKissick Oilfield Tubing Blocks utilising new Split Nut Retention System. Revolutionary new retention system eliminates conventional threaded nut and potential
problems associated with thread corrosion.
- Exclusive E-Z opening guards, no bolts to pull out and lose. Feature gives fastest possible exposure of sheave cluster for quick reeving.
- Extremely short overall length, extra weight, excellent balance for fast non-wobbling falls.
- Roller thrust bearing in hook.
- Duplex hook for easy elevator operation, locks in eight positions.
- Also available with Rod Hook Clevis.
- Completely streamlined, no projections.
- McKissick Roll-Forged, flame hardened sheaves, grooved to API profile for proper Wireline size. Contact Crosby for additional Wireline sizes.
- Separate lubrication channel to each sheave.
- Double row, pre-adjusted tapered bearings with seals.
- McKissick Split-Nut® hook parts precision machined and individually fitted for maximum performance.
- Manufactured to API-8C specifications.
- 35 ton Capacity Rod Hook Clevis available.
- Lock Arms with Self Retaining Bolts.
- All sizes are RFID EQUIPPED.
- The 70 Series has a spring loaded hook that is better for heavy usage and larger depths. Tends to last longer since the shock loads are somewhat absorbed.
- The 80 Series has no spring loaded hook and is better for shall ow depths and rework.
![]() |
![]() |
70 Series | 80 Series |
70 Series Tubing Blocks
Stock No. | Block Config.* | Working Load Limit | Rod Hook Clevis Working Load Limit | Wireline Size (mm) | Weight Each (kg) | ||
(Tons) | (t) | (Tons) | (t) | ||||
111895 | 20" 73-A** | 75 | 68 | 12.5 | 11 | 22 | 823 |
111823 | 24" 73 | 100 | 90 | 20 | 18 | 25 | 1195 |
111921 | 24" 73-A** | 100 | 90 | 20 | 18 | 25 | 1247 |
111922 | 24" 73-AN** | 125 | 113 | 35 | 31 | 25 | 1263 |
128798 | 30" 74 | 150 | 136 | 22.5 | 20 | 28 | 1996 |
125550 | 30" 74-A** | 150 | 136 | 22.5 | 20 | 28 | 2024 |
112552 | 30" 74-AN** | 175 | 158 | 35 | 31 | 28 | 2251 |
* Spring loaded duplex hook assuring ample travel for efficient tubing operations. No load carrying threads ** A = Rod Hook Clevis attachment standard. AN = New 35 Ton Clevis.
80 Series Tubing Blocks
Stock No. | Block Config. | Working Load Limit | Rod Hook Clevis Working Load Limit | Wireline Size (mm) | Weight Each (kg) | ||
(Tons) | (t) | (Tons) | (t) | ||||
112135 | 17" 83 | 50 | 45 | 7.5 | 6.8 | 22 | 491 |
112243 | 17" 83-A** | 50 | 45 | 7.5 | 6.8 | 22 | 503 |
112252 | 20" 82-A** | 50 | 45 | 7.5 | 6.8 | 22 | 564 |
112261 | 20" 83-A** | 75 | 68 | 12.5 | 11 | 22 | 753 |
112270 | 24" 82-A** | 75 | 68 | 12.5 | 11 | 25 | 830 |
112181 | 24" 83 | 100 | 90 | 20 | 18 | 25 | 998 |
112279 | 24" 83-A** | 100 | 90 | 20 | 18 | 25 | 991 |
117498 | 24" 84-A** | 100 | 90 | 20 | 18 | 25 | 1247 |
112278 | 24" 83-AN** | 125 | 113 | 35 | 31 | 25 | 996 |
117500 | 24" 84-AN** | 125 | 113 | 35 | 31 | 25 | 1329 |
117514 | 30" 84-A** | 150 | 136 | 22.5 | 20 | 28 | 1873 |
205857 | 30" 83-AN** | 175 | 158 | 35 | 31 | 28 | 1704 |
117516 | 30" 84-AN** | 175 | 158 | 35 | 31 | 28 | 1963 |
** A = Rod Hook Clevis attachment standard. AN = New 35 Ton Clevis.
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