Used for the most demanding tasks, these tools leverage hydraulic pressure to apply thousands of foot-pounds of torque with minimal physical effort. Brands like Atlas Copco offer models specifically designed for these high-limit industrial flanges.

is a common specification for heavy-duty industrial applications, such as securing wind turbine yaw bearings or bridge structural components.

A torque value of 1558 is often calculated based on the bolt's material, size, and thread pitch. Common Conversion Reference Equivalent to 1558 Nm Foot-Pounds (ft-lb) 1,149.12 ft-lb Inch-Pounds (in-lb) 13,789.44 in-lb Kilogram-force Meters (kgf-m) 158.87 kgf-m

Applying force beyond 1558 when that is the limit can lead to bolt stretching or permanent thread deformation.