HARKEN CARBO RATCHET TRIPLE CAM BKT 57MM

The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless.

Sheave Ø (mm)
57 mm

Sheave Ø (in)
2 1/4 in

Length (mm)
125 mm

Length (in)
4 15/16 in

Weight (g)
431 g

Weight (oz)
15.2 oz

Shackle pin Ø (mm)
6 mm

Shackle pin Ø (in)
1/4 in

Maximum line Ø (mm)
10 mm

Maximum line Ø (in)
3/8 in

Maximum working load (kg)
816 kg

Maximum working load (lb)
1800 lb

Breaking load (kg)
2041 kg

Breaking load (lb)
4500 lb

Holding power w/180 degree wrap 50 lb (23 kg)
10:1

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