What is the nominal working arm length typically specified?

The nominal working arm length typically specified, especially in the context of ergonomic standards and equipment design, is 900 mm. This measurement is commonly used in various industries to ensure that the equipment or workstation is designed to accommodate the average reach of users.

Using 900 mm as the standard promotes comfort and efficiency during tasks, helping to reduce strain and the risk of injury. This dimension is often derived from anthropometric data, which considers the average arm lengths of the population, ensuring that the majority of users can operate tools and machinery effectively without excessive stretching or awkward postures.

In contrast, other lengths such as 800 mm, 850 mm, and 950 mm may not align with the ergonomic principles that prioritize user comfort and effectiveness. While they may serve specific applications in particular contexts, the 900 mm standard is widely recognized and implemented as a fitting compromise for optimal reach and functionality in general working conditions.