Page 21 - Harken

Ratchamatic Blocks

About Carbo Air blocks: see feature page at beginning of this section.

Use with 2631/2677 for a powerful
8:1 purchase.

DNA F1 A-Cat, Mischa Heemskerk, 5.49 m, DNA Performance Yachts © DNA Performance Sailing
75 mm
Actual
size
.
57 mm
Actual size

2630
2629 2686 2632
2685 2687 2634
Sheave Shackle pin Max line Maximum Breaking Holding power
Part Ø Length Weight Ø Ø working load load w/180° wrap
No. Description 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
*Maximum working loads and breaking loads for blocks based on cam strengths.
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