China Mechanical Hanging Scale for Farm Manufacturer Factory

Mechanical hanging scales have been a staple in weighing applications for decades, providing a simple, reliable, and effective way to measure weight. These scales are widely used in various industries, including agriculture, retail, logistics, and even in scientific research. Despite the rise of digital scales, mechanical hanging scales continue to be favored for their durability, ease of use, and independence from power sources.

1. Concept and Design Phase

The step in the production of a mechanical hanging scale is conceptualizing its design. The design phase involves determining the scale's intended use, load capacity, and features. Factors such as the type of material being weighed, the environment in which the scale will be used, and the required precision all play a role in the design process.

The key components of a mechanical hanging scale include:

The Hook: This is where the item being weighed is suspended. It must be strong enough to hold the weight without bending or deforming.

The Spring: The spring is responsible for measuring the force exerted by the load, which translates into weight.

The Dial or Scale Face: This is where the measurement is displayed. It may be a pointer that moves along a graduated scale.

The Casing: The casing protects the internal components from damage and environmental factors such as dust or moisture.

Designers use Computer-Aided Design (CAD) software to model the scale, ensuring that all parts are properly sized and function together. The CAD design also includes stress testing to ensure the scale can handle its rated capacity without distortion or failure.

2. Material Selection

Once the design is finalized, selecting the appropriate materials for each part is crucial. Mechanical hanging scales are typically made from materials such as:

Steel or Stainless Steel: The body, hook, and spring are often made from high-strength steel or stainless steel. These materials offer the necessary durability and resistance to corrosion, especially for scales that are used in outdoor or industrial environments.

Aluminum or Plastic: For lighter models or when weight is a critical factor, parts of the casing or dial may be made from aluminum or durable plastic composites.

Glass or Acrylic: The dial cover may be made from glass or acrylic, both of which offer transparency while being strong enough to protect the inner workings of the scale.

Choosing high-quality materials is essential for ensuring the scale's longevity and accuracy. The selected materials must also be able to withstand environmental factors such as humidity, temperature fluctuations, and exposure to chemicals or salts, particularly in industrial or marine settings.

3. Manufacturing the Components

With the materials chosen, production begins with manufacturing the individual components of the scale. This process involves several steps:

Stamping or Cutting: Components like the hook, spring, and casing may be stamped or cut from sheets of metal. This is done using precision machinery that ensures each part is shaped correctly.

Machining: Parts that require specific dimensions, such as the spindle or the shaft that holds the spring, are often machined using lathes or milling machines. This step ensures that the components fit together accurately.

Spring Fabrication: The spring is a critical element of the mechanical hanging scale. It is typically wound from high-carbon steel or stainless steel wire. The spring must be calibrated to the exact specifications needed for accurate weight measurement. The process involves coiling the wire into a specific shape and then tempering it to ensure it maintains its flexibility and strength.

Dial Manufacturing: The dial is often made by printing graduated markings onto a metal or plastic face. The markings are carefully calibrated to correspond with the scale's load capacity. If the scale features a pointer, it is attached to the spindle, which will rotate in response to the spring's movement under load.