check valve which is installed for safety
prevents objects falling.
with large capacity cylinder of strong power.
Hydraulic Thumb can be attached at all types
of 5 to 40 ton class excavators of all brands.
valve is mounted on cylinder: Cylinder shock-absorbing
function prevents twisting, crack at the
welded part and breakage of cylinder
a special steel of POSCO, is adopted for
all models. Light weight and high elasticity
steel plates secure low abrasion and excellent
shock absorber of cushion function: Brake
function in cylinder protects excavator
boom before and after operation.