Underwater Lifting & Rotating Stage | 3 Independent Rings + DMX512 Control

POSTED: 4/27/2026

Обзор

Project: Underwater lifting & rotating stage (3‑tier cake structure)
Client: Suzhou Siyan Culture Development Co., Ltd.
Industry: Cultural tourism & performing arts
Key challenges: Underwater corrosion, 3 independent rings, DMX512 control, 30m hydraulic piping, tight access (1500×2000mm)

Suzhou Siyan Culture Development Co., Ltd. is producing a high‑end show integrating water, wind and lighting. Immersive cultural tourism is booming across China – sold‑out water shows in Wuhan, immersive performances in Suzhou (Panmen, Zhouzhuang, Lion Hill Grand Theatre). Demand for custom stage equipment is surging.

Core Specifications

Параметр	Значение
Outer ring diameter	Φ7000mm
Middle ring diameter	Φ4900mm
Inner ring diameter	Φ2800mm
Travel per ring	600 / 1000 / 1500mm
Total load capacity	1500kg
Rotation speed	1-5 min/rev (VFD)
Hydraulic medium	Water‑glycol fluid
Corrosion protection	Galvanising + epoxy + PVC topcoat
Control protocol	DMX512
Pump station distance	30m
Site access	1500×2000mm
Order→shipment	14 days (urgent)

Решение

2.1 Corrosion Protection: Hot‑Dip Galvanising + Multi‑Layer Coating

Approach: Conventional stages have no corrosion protection. This stage operates fully submerged. Solution: hot‑dip galvanising (sacrificial anode protection) + epoxy primer + PVC topcoat.

Advantage: Dual protection – even if topcoat is damaged, the zinc layer continues to protect.

2.2 Eco‑Friendly Medium: Water‑Glycol Fluid

Approach: Hydraulic oil leaks produce oil films on water. Switched to water‑glycol fluid – transparent, no visible film. Paired with hydraulic water cylinders and water pumps.

Advantage: Zero water contamination, reduced maintenance, pure visual effect.

2.3 Three Independent Rings: Enhanced Choreography

Approach: Outer ring Φ7000mm, middle Φ4900mm, inner Φ2800mm. Each lifts separately (travel 600/1000/1500mm) and rotates independently (VFD, 1‑5 min/rev).

Advantage: Full creative freedom – complex motions like inner rising while outer rotating, synchronised with water, wind and lighting.

2.4 30m Remote Piping: Redundant Pre‑embedding

Approach: Pump station 30m from pit edge. Pipes must be embedded before stage arrives. Redundant interfaces added because fountain hole locations are not finalised.

Advantage: Proactive coordination avoids delays; redundancy absorbs site changes.

2.5 DMX512 Unified Control: Sync with Lighting & Fountain

Approach: Industry‑standard lighting protocol DMX512. Each ring has three position states (low/middle/high) and three rotation states (forward/reverse/stop), with repeat positioning.

Advantage: Stage motion can be choreographed like lighting cues – true water‑moves‑with‑music, stage‑rotates‑with‑light immersion.

2.6 Tight Access: Segmented On‑Site Assembly

Approach: Entrance only 1500×2000mm – a fully assembled Φ7000mm ring cannot enter. Solution: fabricate each ring in radial segments (each ≤1500mm wide), transport separately, weld in the pit.

Advantage: “Divide and conquer” – fits through narrow access, reduces on‑site lifting difficulty, modular interfaces maintain factory‑calibrated performance.

Если вы хотите изготовить оборудование для обработки материалов по индивидуальному заказу, пожалуйста contact us →.