Balance Beam Scale AUNMAS Mechanical Roberval Balance for Teaching

Description

Product Overview

The Balance Beam Scale from AUNMAS is a precision-engineered mechanical balance that follows the classic Roberval lever design, delivering reliable and repeatable weight measurements without the need for electronic components. Constructed from high‑quality steel alloy and reinforced with a sturdy wooden base, the instrument offers a stable platform that resists vibration and environmental fluctuations, making it suitable for both classroom demonstrations and small‑scale laboratory work. Its compact dimensions—7.87 × 2.76 × 5.43 inches—and lightweight build (1.45 lb) allow easy placement on benches, desks, or portable workstations. The scale includes a set of calibrated reference weights (5 g, 10 g, two × 20 g, 50 g, and 100 g) and a pair of precision tweezers designed to handle the weights without contaminating them. The lever arms are balanced to within 0.01 g, ensuring that the beam remains level when equal masses are placed on either side, thereby illustrating fundamental principles of equilibrium and mass distribution.

Usage

This balance is specifically tailored for educational environments, including high‑school physics and chemistry labs, vocational training centers, and university introductory courses. In physics classes, instructors can demonstrate concepts such as torque, center of mass, and the relationship between force and lever length. Chemistry teachers can use the scale to weigh solid reagents, compare densities, and perform stoichiometric calculations with tangible, hands‑on experience. The included tweezers enable students to transfer small weights safely, reducing the risk of contamination or loss. Because the instrument operates entirely on mechanical principles, it does not require batteries or power sources, making it ideal for remote locations, field trips, or schools with limited resources. The scale’s clear, engraved markings and the optional protective cover help maintain accuracy over years of frequent use.

Why Choose Us

Choosing the AUNMAS Balance Beam Scale means investing in a product that combines durability, educational value, and cost‑effectiveness. Each unit undergoes a rigorous quality‑control process that includes calibration verification, lever alignment testing, and corrosion resistance assessment. The steel alloy frame is coated with a non‑reactive finish that prevents rust and extends the lifespan of the instrument even in humid laboratory conditions. AUNMAS provides a one‑year warranty covering manufacturing defects, and our dedicated customer‑service team is available to assist with calibration queries, replacement parts, or instructional resources. By offering a fully assembled balance with all necessary accessories, we eliminate the need for additional purchases, allowing schools to allocate budget toward other essential supplies.

Key Features

• Roberval lever mechanism delivers precise, repeatable measurements without electronic interference.
• High‑quality steel alloy construction ensures long‑term durability and resistance to corrosion.
• Compact size and lightweight design make it easy to transport and set up in any classroom or lab.
• Complete accessory kit includes calibrated weights (5 g‑100 g) and precision tweezers for accurate handling.
• Responsive after‑sales support with a one‑year warranty and expert assistance for calibration and maintenance.

FAQ

How accurate is the Balance Beam Scale?

The scale is calibrated to an accuracy of ±0.01 g when used with the supplied reference weights, making it suitable for most educational experiments that require precise mass comparison.

Can the balance be used for liquids?

While the instrument is primarily designed for solid objects, it can be used with liquid containers as long as the container is placed on a stable platform and the total mass does not exceed the scale’s capacity.

What maintenance is required?

Periodically check that the lever arms are free of dust and that the pivot points are lubricated with a light oil. Store the balance in a dry environment and avoid exposure to extreme temperatures.

Is calibration needed after long‑term use?

For best results, we recommend recalibrating the balance annually using the included reference weights or a certified calibration set.

Do you ship internationally?

Yes, AUNMAS offers worldwide shipping. International orders may be subject to customs duties and import taxes, which are the responsibility of the buyer.