Torque Loader 52110091, 7791

Stahlwille MANUTORK® 7791 Mechanical Calibration System

The Stahlwille MANUTORK® 7791 Mechanical Calibration System is a professional torque calibration platform designed to simplify the testing, calibration, and adjustment of torque wrenches and torque screwdrivers up to 400 N·m. Engineered for calibration laboratories, quality assurance departments, manufacturing facilities, and service centers, the system provides a highly stable and repeatable method of applying torque while minimizing the measurement errors commonly associated with conventional calibration setups.

At the heart of the MANUTORK® 7791 is a patented force transmission mechanism that prevents the force application point from shifting during the calibration process. This innovative design ensures consistent load application throughout the measurement cycle, helping technicians achieve more accurate and repeatable calibration results while reducing setup complexity and operator influence.

The system operates through a precision handwheel-driven spindle mechanism that moves a lever linearly. This controlled linear movement is converted into a rotational movement within the connected transducer, allowing torque to be applied smoothly and progressively. The design significantly reduces the effort required to perform calibration procedures while providing exceptional control over torque application.

Two integrated ball-bearing bushings create a virtually friction-free support surface for the torque wrench, enabling precise horizontal alignment throughout the testing process. Because the torque wrench remains securely positioned while the load is applied, transverse forces and friction effects are minimized, helping to reduce measurement uncertainty and improve overall calibration accuracy.

Designed for use with Stahlwille transducers sizes 1 through 100, the MANUTORK® 7791 supports torque calibration applications up to 400 N·m and accommodates torque tools with functional lengths up to 815 mm. Its robust construction and stable platform make it suitable for routine calibration work, verification procedures, and quality control programs where dependable measurement performance is essential.

Protected by national and international patents, the Stahlwille MANUTORK® 7791 delivers an efficient, repeatable, and user-friendly solution for professional torque calibration. By reducing friction, minimizing side loads, and maintaining a fixed force application point, the system helps ensure reliable calibration results while improving workflow efficiency and reducing operator fatigue.