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)
103 mm

Length (in)
4 1/16 in

Weight (g)
266 g

Weight (oz)
9.4 oz

Shackle pin Ø (mm)
5 mm

Shackle pin Ø (in)
3/16 in

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 (kg)
340 kg

Breaking load (lb)
750 lb

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

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