29
© Nick Woviotis / Skylla Filmworks LLC / Sailing World
2630
2686 
2632
2687 
2629
2685 
2634
 
 
 
  
Ratchamatic Blocks
About Carbo Air blocks: see feature page at beginning of this section.
 *Maximum working loads and breaking loads for blocks based on cam strengths.
Use with 2631/2677 for a powerful 
8:1 purchase.
Part
No.
Description
Sheave
Ø
Length
Weight
Shackle pin
Ø
Max line
Ø
Maximum
working load
Breaking
load
Holding power 
w/180° wrap
in
mm
in
mm
oz
g
in
mm
in
mm
lb
kg
lb
kg
50 lb (23 kg)
  57 mm 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2629 
 Triple/150 Cam-Matic* 
 2 1/4 
 57 
 4 1/16 
 103 
 14.9 
 421 
 1/4 
 6 
 3/8 
 10 
 1500 
 680 
 3750 
 1700 
 10:1 
 2630 
 Triple/150 Cam-Matic/becket* 
 2 1/4 
 57 
 4 15/16  125 
 15.2 
 431 
 1/4 
 6 
 3/8 
 10 
 1800 
 816 
 4500 
 2041 
 10:1 
 2632 
 Triple/150 Cam-Matic/40 mm block/becket* 
 2 1/4 
 57 
 6 1/8 
 156 
 18.3 
 520 
 1/4 
 6 
 3/8 
 10 
 1800 
 816 
 4500 
 2041 
 10:1 
 2634 
 Double 
 2 1/4 
 57 
 4 9/16 
 116 
 7.2 
 204 
 1/4 
 6 
 3/8 
 10 
 750 
 340 
 1875 
 851 
 10:1 
  75 mm 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2685 
 Triple/150 Cam-Matic* 
 2 15/16 
 75 
 6 3/16 
 137 
 31 
 879 
 5/16 
 8 
 7/16 
 12 
 1500 
 680 
 3750 
 1700 
 15:1 
 2686 
 Triple/150 Cam-Matic/becket* 
 2 15/16 
 75 
 6 1/2 
 165 
 31.6 
 896 
 5/16 
 8 
 7/16 
 12 
 1800 
 816 
 4500 
 2041 
 15:1 
 2687 
 Triple/150 Cam-Matic/57 mm block/becket* 
 2 15/16 
 75 
 6 1/2 
 165 
 34.7 
 984 
 5/16 
 8 
 7/16 
 12 
 1800 
 816 
 4500 
 2041 
 15:1 
57 mm
Actual size
75 mm
Actual
size

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