| Block Size (in.) | Fitting | Single Sheave | Double Sheave | Triple Sheave | |||
| 21 B Galv | 22 B Galv | 23 B Galv. | |||||
| CERTEX Cat. Ref. No. | Crosby Stock No. | CERTEX Cat. Ref. No. | Crosby Stock No. | CERTEX Cat. Ref. No | Crosby Stock No. | ||
| 3 | HS | CX13-0376 | 603813 | CX13-0402 | 604616 | CX13-0426 | 605410 |
| 4 | HS | CX13-0377 | 603831 | CX13-0403 | 604634 | CX13-0427 | 605438 |
| 5 | HS | CX13-0378 | 603859 | CX13-0404 | 604652 | CX13-0428 | 605456 |
| 6 | HS | CX13-0379 | 603877 | CX13-0405 | 604670 | CX13-0429 | 605474 |
| 8 | HS | CX13-0380 | 603911 | CX13-0406 | 604714 | CX13-0430 | 605517 |
| 3 | N | CX13-0381 | 606419 | CX13-0407 | 606810 | CX13-0431 | 607212 |
| 4 | N | CX13-0382 | 606437 | CX13-0408 | 606838 | CX13-0432 | 607230 |
| 5 | N | CX13-0383 | 606455 | CX13-0409 | 606856 | CX13-0433 | 607258 |
| 6 | N | CX13-0384 | 606473 | CX13-0410 | 606874 | CX13-0434 | 607276 |
| 8 | N | CX13-0385 | 606516 | CX13-0411 | 606918 | CX13-0435 | 607310 |
| 3 | S | CX13-0386 | 610011 | CX13-0412 | 611617 | CX13-0436 | 613214 |
| 4 | S | CX13-0387 | 610039 | CX13-0413 | 611635 | CX13-0437 | 613232 |
| 5 | S | CX13-0388 | 610057 | CX13-0414 | 611653 | CX13-0438 | 613250 |
| 6 | S | CX13-0389 | 610075 | CX13-0415 | 611671 | CX13-0439 | 613278 |
| 8 | S | CX13-0390 | 610119 | CX13-0416 | 611715 | CX13-0440 | 613312 |
| Block Size (in.) | Sheave Diameter (in.) | Manila Rope Size (in.) | Working Load Limit* (lbs.) | Weight Each (lbs.) | ||||||
| Outside Diam. | Rim Thickness | Center Pin Diam. | 21 Single | 22 Double | 23 Triple | 21 Single | 22 Double | 23 Triple | ||
| 3 | 1.75 | .50 | .38 | 3J8 | 500 | 800 | 1200 | 1.00 | 1.75 | 2.50 |
| 4 | 2.25 | .63 | .38 | 112 | 1000 | 1400 | 1800 | 1.75 | 3.00 | 4.00 |
| 5 | 3.00 | .75 | .38 | 518 | 1200 | 1800 | 2400 | 3.25 | 5.60 | 6.50 |
| 6 | 3.50 | 1.00 | .50 | 314 | 1800 | 2500 | 3200 | 5.00 | 8.50 | 11.50 |
| 8 | 4.75 | 1.13 | .63 | 7/8-1 | 2800 | 3800 | 4800 | 9.00 | 14.00 | 21.50 |
*Ultimate Load is 4 times the Working Load Limit.
Note: We furnish beckets on all blocks.
WARNING: Prop 65: Products supplied by CERTEX USA may expose you to chemicals including Nickel, which is known to the State of California to cause cancer. For more information, visit to www.P65Warnings.ca.gov.
Ropeblock Snatch Blocks are an excellent choice in most rigging and lifting plans. Durability and ease of use are some of the key benefits in addition to: Design Factor of Safety of 4:1 Lubricated bronze bushings Eye or oblong eye connection Sheaves, featuring...
Blocks shown in this section may be used on a wide variety of land based cranes such as mobile and crawler cranes. Standard Reeve Blocks are an excellent choice where frequent easy block change is not a required main feature, or lifting height is limited: Double...
The weight of the overhaul balls in this segment are based on average boom lengths and efficiency loss in mobile and crawler cranes. The low friction and easy to access hook swivel design makes the OHB series an excellent choice for a wide variety of crane...
The weight of the overhaul balls in this segment are based on average boom lengths and efficiency loss in mobile and crawler cranes. The low friction and easy to access hook swivel design makes the OHB series an excellent choice for a wide variety of crane...
