Key design points of the handle for the propulsion control lever of Marine main engines

The handle design of the Marine main engine propulsion control handle needs to take into account environmental adaptability, operational safety, human comfort and functional reliability.

I. Material compatibility with the environment

1. Core requirements: Resistant to harsh Marine environments (salt spray, oil stains, and temperatures ranging from -20℃ to 60℃), and corrosion-resistant materials such as reinforced nylon and rubber should be selected. ​

2. Auxiliary features: The surface is equipped with anti-slip texture (sweat-proof and oil-proof), while also being lightweight (to avoid operational fatigue). ​

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II. Ergonomic Design

1. Shape fit: Conform to the natural arc of the palm (use an ellipse or a cylinder with a groove, avoiding pure circles or sharp corners), with a length of 10 to 15cm and a diameter of 35 to 50mm (suitable for most hand shapes). ​

2. Operational comfort: The built-in buffer layer reduces vibration transmission, ensuring uniform force distribution on the palm when held. ​

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III. Function and Safety Control

1. Button layout: Key buttons (such as emergency stop) should be prominent and easily identifiable, while secondary buttons need to be triggered with force (to prevent accidental touch), and their positions should be within the natural reach of fingers. ​

2. Operation feedback: There is a tactile sensation when pressing the button, and the resistance during rotation adjustment is uniform (facilitating precise control). ​

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IV. Basic Security and Compliance

1. Structural safety: The grip and handle are firmly connected, with a waterproof rating of IP65 or above. The markings are clear and wear-resistant (using internationally recognized symbols). ​

2. Industry standards: Comply with relevant ergonomic regulations of IMO, classification societies (such as CCS, ABS), and ISO.