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Home / Hand Gongs / Sanjuban Set: Copper Gongs, Drums, and Cymbals, Plated or Pure Copper, 15cm/32cm/42cm Sizes for Flood Warning

Attributes

Brand -
Category Musical Instruments/Guitars/Pianos/Accessories / Hand Gongs
Origin -
Material Composition High-grade pure copper with optional gold plating
Set Components Includes one gong, one drum, and one pair of cymbals
Available Sizes 15cm, 32cm, and 42cm diameter options
Primary Application Traditional flood warning signals and community alerts
Sound Profile Deep, resonant tone capable of long-distance travel
Mounting Hardware Reinforced steel frame and heavy-duty suspension ropes included
Finish Type Hand-polished surface for weather resistance
Weight (42cm Set) Approximately 8.5 kg total package weight
Origin Artisan crafted using traditional metallurgy techniques
Maintenance Requires occasional polishing to maintain acoustic clarity

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 4/5

Beautiful craftsmanship, loud tone

Bought this for a cultural demonstration, but it works perfectly for its intended warning purpose too. The copper finish is stunning. Only giving 4 stars because the stand assembly instructions were slightly vague.

A

Anonymous

Mar 29, 2026

Rating: 5/5

Excellent clarity for emergency use

We purchased the 42cm set for our village flood defense team. The sound carries incredibly well over the river noise, ensuring everyone hears the warning immediately. The build quality is solid.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Great value for a complete set

Getting the gong, drum, and cymbals together saved us money. The cymbals are particularly sharp and cut through wind noise effectively. Shipping took a bit longer than expected.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Superior to electronic sirens

In areas where power might fail during a storm, this mechanical set is invaluable. The 32cm size provides the perfect balance between portability and volume. Highly recommended.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Reliable in all weather conditions

Has been mounted outside for six months through rain and sun. The plating holds up well, and the sound has not degraded. Essential equipment for our coastal monitoring station.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Authentic and powerful

The resonance of the pure copper is unmatched. We use this for both ceremonial purposes and as a backup alert system. It feels like a piece of history that still serves a vital modern function.

5 FAQ

Q: What is the effective range of the sound for the 42cm gong?

A: Under normal atmospheric conditions, the 42cm gong can be clearly heard up to 1.5 kilometers away, depending on terrain and wind direction.

Q: Do you offer replacement beaters or mallets?

A: Yes, we sell hardened wood and rubber-tipped mallets separately. Please check the accessories section of our store for compatible sizes.

Q: Can these instruments withstand continuous outdoor exposure?

A: Yes, the Sanjuban sets are treated with a protective finish designed to resist oxidation and weather damage, making them suitable for permanent outdoor installation.

Q: Is the 15cm size loud enough for a small neighborhood alert?

A: The 15cm model is best suited for immediate vicinity alerts or indoor use. For neighborhood-wide warnings, we strongly recommend the 32cm or 42cm models.

Q: How difficult is it to mount the frame on a concrete wall?

A: The kit includes anchor bolts for masonry. While the process is straightforward, we recommend two people for installation due to the weight of the larger units.

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