HARKEN RATCHAMATIC FLIP FLOP BLOCK 57MM CAM

Small Boat Flip-Flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows for various lead angles. Adjustable automatic ratchet mechanism allows sheave to freewheel when under light loads and automatically engages ratchet under heavy loads.

Sheave Ø (mm)
57 mm

Sheave Ø (in)
2 1/4 in

Length (mm)
110 mm

Length (in)
4 5/16 in

Width (mm)
66 mm

Width (in)
2 5/8 in

Height (mm)
106 mm

Height (in)
4 3/16 in

Weight (g)
329 g

Weight (oz)
12 oz

Maximum line Ø (mm)
10 mm

Maximum line Ø (in)
3/8 in

Maximum working load (kg)
136 kg

Maximum working load (lb)
300 lb

Breaking load (lb)
600 lb

Footnote
Maximum working loads and breaking loads for blocks based on cam strengths.