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)
75 mm

Sheave Ø (in)
2 15/16 in

Length (mm)
165 mm

Length (in)
6 1/2 in

Weight (g)
896 g

Weight (oz)
31.6 oz

Shackle pin Ø (mm)
8 mm

Shackle pin Ø (in)
5/16 in

Maximum line Ø (mm)
12 mm

Maximum line Ø (in)
7/16 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)

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