Online ordering is temporarily closed for a system upgrade. Please contact customer service to place an order.
mouseover to enlarge
75 mm Ratchamatic Block — Swivel, Cam Cleat 75 mm Ratchamatic Block — Swivel, Cam Cleat 75 mm Ratchamatic Block — Swivel, Cam Cleat
click thumbnail to select

75 mm Ratchamatic Block — Swivel, Cam Cleat

Part No. 2683
$269.20  In Stock
Sheave Ø (mm)75 mm
Sheave Ø (in)2 15/16 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg)136 kg
Maximum working load (lb)300 lb

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)138 mm
Length (in)5 7/16 in
Weight (g)440 g
Weight (oz)15.5 oz
Shackle pin Ø (mm)6 mm
Shackle pin Ø (in)1/4 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 7/16 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) 15:1 
FootnoteMaximum working loads and breaking loads for blocks based on cam strengths. 
DWG: 2683.dwg (open/save)
DXF: 2683.dxf (open/save)
IGS: 2683.igs (open/save)
EPS: 2683.eps (open/save)
High-res JPG: 2683.jpg (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

  • United States
  • Australia
  • France
  • Italia
  • New Zealand
  • Polska
  • Sverige
  • UK