Heavy Duty Floor Hinge

1. One model four optional spring strength for every application 2. Mutiple functions as standard for reduced inventory 3. Non-handed, for single or double action door 4. Changeable spindle insert available to suit field conditions 5. Provided door weight up to 300KG 6. Height mechanical efficiency compliance 7. Hold- open angle available for 90 degree HO, 105 degree HO or NHO 8. Closing speed variable by valve adjustable 9. Max Door Open angle 180 degree 10 Back check, the function helps to prevent damage of door and wall when a door being opened with excessive force by people or the wind.