My shopping cart
Your cart is currently empty.
Continue ShoppingHARKEN 75mm Ratchamatic Flip-Flop SB Block, 2688
tesstingkkk
tesstingkkk
PRODUCT DESCRIPTION
Small Boat Flip-Flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows a variety of lead angles.
Lightweight, machined 6061-T6 aluminum cheeks pivot on fiber-reinforced plastic chocks. Sheave runs exclusively on a ball-bearing system for fast trim and release under any load. Ball bearings, sheaves, and sideplates are UV-stabilized with carbon black for maximum protection.
Ratchamatic block versions roll freely in both directions under low loads and automatically engage a ratchet mechanism as loads increase, giving sailors a holding power of up to 15:1. The ratchet engagement can be adjusted to a higher or lower load depending on the sailor’s strength, sailing style, and system usage.
Reversible cam arms adjust and lock in a range of positions for crew accessibility and accommodation of changing lead angles.
Note: Special Order Only
FEATURES
SPECS
Type | Ratchamatic | Maximum Working Load | 750 lbs. (340 kg) |
---|---|---|---|
Sheave | 75 mm (3") | Breaking Load | 1500 lbs. (680 kg) |
Length | 143 mm (5 5/8") | Maximum Line | 12 mm (7/16") |
Height | 89 mm (3 1/2") | Width | 64 mm (2 1/2") |
Weight | 11 oz (304 g) |
© 2025 SailM8 | Powered by Shopify