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Rolling Ball Balance

Ball bearings cross a pivoting beam without falling.

Rolling Ball Balance — Children's Discovery exhibit for science museums
Model ZZKJG-1F-01-04Studio rendering
CategoryChildren's Discovery
Model codeZZKJG-1F-01-04
Standard size5400 x 660 x 4500 mm
SupplySingle unit or batch · OEM to your drawing
Lead timeStandard 4–8 weeks after deposit (confirmed per contract)
Warranty2 years, structure and control
DocumentsSpecification sheet · control diagram · spare-part list

A standard catalogue model: the drawing, control package and finish are fixed, which is what keeps the price and the lead time predictable. Size, colour and interface language can be adapted without a new design cycle.

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01 / Overview

This interactive mechanism is a combination of small balls walking on different tracks, and visitors participates by changing the trajectory of the balls through hands-on activities, allowing them to move in mazes and balance swings.

02 / How visitors use it

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

03 / The science behind it

The Bernoulli principle was first proposed by Daniel Bernoulli in 1726: "In water or air currents, if the velocity is low, the pressure is high; if the velocity is high, the pressure is low." We call it the "Bernoulli principle.

04 / Built for a public floor

Every unit leaves the factory after a running test: mechanisms cycled, electronics burned in, edges dressed, fixings torqued and marked. Wear parts — bearings, sliders, lamps, belts, touch panels — are modular and listed on the spare-part sheet, so a venue technician can replace them without returning the exhibit. Crating is plywood with foam blocking; the loading plan and packing list travel with the shipment.

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