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HARKEN75mm Carbo Ratchamatic Blocks

HARKEN

75mm Carbo Ratchamatic Blocks

Control loaded lines with ease

The 57mm and 75mm Carbo Ratchamatic blocks are adjustable for use in many applications and weather conditions. This load-sensing ratchet block rolls freely in both directions under low loads, then engages the ratchet automatically as loads increase. With 180 degree wrap, you get a 10:1 holding power. Great for asymmetrical spinnakers when you need tough holding power and a quick release.

  • Sheave: Hardkote anodized eight-sided aluminum
  • Sheave Size: 1-9/16" (40mm)
  • Ball Bearings: Engineered plastic in fitted ball races
  • Line Diameter: 3/8"
  • Cheek Material/Finish: Long-glass reinforced engineered nylon
  • Shackle/Strap Type: Stainless swivel shackle
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
75mm Carbo Ratchamatic Block, 750lb. SWL, 8.4oz. 6840623 2680
In stock online.

$127.99

75mm Carbo Ratchamatic Block with Becket, 750lb. SWL, 9.0oz. 6840631 2681
In stock online.

$137.99

75mm Carbo Ratchamatic Block, Cheek, 750lb. SWL, 6.5oz. 6840649 2682
In stock online.

$127.99

75mm Carbo Ratchamatic Block with Becket & Cam, 600lb. SWL, 15.5oz. 6840656 2684
In stock online.

$249.99

75mm Carbo Ratchamatic Block, Triple with Cam, 1,500lb. SWL, 31.0oz. 6840664 2685
In stock online.

$369.99

75mm Carbo Ratchamatic Block, Triple with Cam & Becket, 1,800lb. SWL, 31.6oz. 6840672 2686
In stock online.

$379.99

75mm Carbo Ratchamatic Block, Triple with Cam, Becket, Single 1,800lb. SWL, 34.7oz. 6840680 2687
Delivery within 2 - 3 weeks.

$424.99

75mm Carbo Ratchamatic Block, Flip-Flop with Cam, 300lb. SWL, 18.0oz. 9485764 2689
Delivery within 2 - 3 weeks.

$334.99

Product Description

Control loaded lines with ease

The 57mm and 75mm Carbo Ratchamatic blocks are adjustable for use in many applications and weather conditions. This load-sensing ratchet block rolls freely in both directions under low loads, then engages the ratchet automatically as loads increase. With 180 degree wrap, you get a 10:1 holding power. Great for asymmetrical spinnakers when you need tough holding power and a quick release.

  • Sheave: Hardkote anodized eight-sided aluminum
  • Sheave Size: 1-9/16" (40mm)
  • Ball Bearings: Engineered plastic in fitted ball races
  • Line Diameter: 3/8"
  • Cheek Material/Finish: Long-glass reinforced engineered nylon
  • Shackle/Strap Type: Stainless swivel shackle

Specs

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REVIEW SNAPSHOT®

by PowerReviews
Harken75mm Carbo Ratchamatic Blocks
 
5.0

(based on 1 review)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)

 
5.0

Do what they say.

By Nieldy

from Windermere England

About Me Professional

Verified Buyer

Pros

  • Attractive Design
  • Easy To Install
  • Easy To Use
  • Quality Construction

Cons

    Best Uses

    • Sailing

    Comments about 75mm Carbo Ratchamatic Blocks:

    We use these blocks to help get the genoa in on a 24ft racing yacht. The blocks work well and help to the extent that most of the time, winching in the sail is no longer needed. This means faster, crisp tacks. We have not yet decided upon the best setting at which the ratchet engages, but a few more races and we will find a good all round setting.

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