HARKEN CARBO BLOCK RATCHAMATIC SINGLE 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)
103 mm
Length (in)
4 1/16 in
Weight (g)
104 g
Weight (oz)
3.7 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)
227 kg
Maximum working load (lb)
500 lb
Breaking load (kg)
907 kg
Breaking load (lb)
2000 lb
Holding power w/180 degree wrap 50 lb (23 kg)
10:1