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- Crosby McKissick and Lebus Pulley / Crane Blocks/
- Crosby McKissick Oilfilled Blocks/
- Crosby McKissick 475, 476 & 477 Oilfield Well Logger's Blocks, WLL Range from 1350kg to 9,000kg
- Alloy aluminum housing for maximum strength and minimum weight.
- Conductor cable ONLY is recommended for use with Well Logger’s Blocks.
- For use in high speed well logging, perforating, etc.
- Extra large double row, pre-adjusted sealed tapered bearing.
- Quick opening pin for fast string-up, light weight for easy handling.
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| McKissick 475 Floor Block | McKissick 477 Floor Block | McKissick 476 Top Block |
475 & 477 Floor Block Specifications
| Sheave Dia. (mm) | Block No. | Floor Block Stock No. | Working Load Limit (t)* | Conductor Cable Size (mm)† | Weight (kg) | Connection |
| 178 | 475 | 180020 | 1.35 | 5 | 4.5 | Swivel Hanger |
| 254 | 475 | 180253 | 2.25 | 8 | 9.5 | Swivel Hanger |
| 305 | 475 | 180440 | 2.25 | 8 | 10.8 | Swivel Hanger |
| 356 | 475 | 180618 | 2.25 | 8 | 19.5 | Swivel Hanger |
| 356 | 477 | 169784 | 5.4 | 6 | 26.3 | Swivel Clevis |
| 508 | 477 | 191072 | 5.4 | 6 | 31.8 | Swivel Clevis |
| 610 | 477 | 191107 | 9 | 8 | 58.9 | Swivel Clevis |
*Ultimate Load is 4 times the Working Load Limit.
†Other cable sizes available upon request.
476 Top Block Specifications
| Sheave Dia. (mm) | Block No. | Top Block Stock No. | Working Load Limit (t)* | Conductor Cable Size (mm) | Weight (kg) | Connection |
| 178 | 476 | 180075 | 2.25 | 5 | 4.5 | Stinger Pin |
| 254 | 474 | 180173 | 2.25 | 5 | 4.5 | Stinger Pin |
| 254 | 476 | 180333 | 3.6 | 8 | 9.5 | Stinger Pin |
| 305 | 476 | 180529 | 3.6 | 8 | 10.8 | Stinger Pin |
| 356 | 476 | 180707 | 3.6 | 8 | 19.5 | Stinger Pin |
* Ultimate Load is 4 times the Working Load Limit.
Contact Us About This Product
If you wish to receive a quote for this product, please use the tab, this form is for general enquiries regarding this product only.
You can also request a quote through the pricing tab!
You can easily add more than one item to the Quote Request. This is highly recommended as we will be able to suit your needs much more efficiently.
Share this page!
- Alloy aluminum housing for maximum strength and minimum weight.
- Conductor cable ONLY is recommended for use with Well Logger’s Blocks.
- For use in high speed well logging, perforating, etc.
- Extra large double row, pre-adjusted sealed tapered bearing.
- Quick opening pin for fast string-up, light weight for easy handling.
![]() |
![]() |
![]() |
| McKissick 475 Floor Block | McKissick 477 Floor Block | McKissick 476 Top Block |
475 & 477 Floor Block Specifications
| Sheave Dia. (mm) | Block No. | Floor Block Stock No. | Working Load Limit (t)* | Conductor Cable Size (mm)† | Weight (kg) | Connection |
| 178 | 475 | 180020 | 1.35 | 5 | 4.5 | Swivel Hanger |
| 254 | 475 | 180253 | 2.25 | 8 | 9.5 | Swivel Hanger |
| 305 | 475 | 180440 | 2.25 | 8 | 10.8 | Swivel Hanger |
| 356 | 475 | 180618 | 2.25 | 8 | 19.5 | Swivel Hanger |
| 356 | 477 | 169784 | 5.4 | 6 | 26.3 | Swivel Clevis |
| 508 | 477 | 191072 | 5.4 | 6 | 31.8 | Swivel Clevis |
| 610 | 477 | 191107 | 9 | 8 | 58.9 | Swivel Clevis |
*Ultimate Load is 4 times the Working Load Limit.
†Other cable sizes available upon request.
476 Top Block Specifications
| Sheave Dia. (mm) | Block No. | Top Block Stock No. | Working Load Limit (t)* | Conductor Cable Size (mm) | Weight (kg) | Connection |
| 178 | 476 | 180075 | 2.25 | 5 | 4.5 | Stinger Pin |
| 254 | 474 | 180173 | 2.25 | 5 | 4.5 | Stinger Pin |
| 254 | 476 | 180333 | 3.6 | 8 | 9.5 | Stinger Pin |
| 305 | 476 | 180529 | 3.6 | 8 | 10.8 | Stinger Pin |
| 356 | 476 | 180707 | 3.6 | 8 | 19.5 | Stinger Pin |
* Ultimate Load is 4 times the Working Load Limit.
Contact Us About This Product
If you wish to receive a quote for this product, please use the tab, this form is for general enquiries regarding this product only.
You can also request a quote through the pricing tab!
You can easily add more than one item to the Quote Request. This is highly recommended as we will be able to suit your needs much more efficiently.
Share this page!


