Operating stage mechanisms underwater causes rapid seal degradation, corrosion, and water contamination hazards. This submersible single scissor stage lift uses IP68-sealed hydraulic actuators and marine-grade coatings to elevate performers, props, and marine animals between submerged depths and pool deck levels.
Submersible IP68 Actuation: Sealed hydraulic cylinders and ceramic-coated rods resist continuous chlorinated pool water immersion.
Non-Toxic Hydraulic Circuit: Compatible with water-glycol and biodegradable fluids to protect aquatic life and performers.
Multi-Color Anti-Slip Deck: Textured composite surface tiles provide traction during wet transitions.
| Technical Parameter | Standard Specification | Engineering Customization Range |
| Rated Lifting Payload | 1,500 kg (Static and dynamic stage load) | Fully Customizable to Client Specifications (500 kg – 10,000 kg) |
| Lowered / Submerged Height | 450 mm (Compact low-profile footprint) | Fully Customizable to Client Specifications |
| Raised Elevation Height | 1,800 mm above pool floor | Fully Customizable to Client Specifications (Up to 4.0 meters) |
| Platform Usable Dimensions | 3,000 mm (L) × 2,000 mm (W) | Fully Customizable to Client Specifications |
| Platform Deck Finish | Multi-Color Anti-Slip Composite Safety Tiles | Perforated SUS316L stainless plate / Teak wood decking |
| Submersible Sealing Rating | IP68 Certified Submersion (Up to 5 meters water head) | Engineered to specific pool depth requirements |
| Scissor Arm Material | Heavy-Wall Structural Steel + Marine Epoxy Coating | Solid SUS304 / SUS316L stainless steel |
| Hydraulic Cylinder Package | Dual Submerged Cylinders with Ceramic-Coated Rods | Sized per buoyancy and dynamic performance load |
| Hydraulic Fluid Type | Non-Toxic Biodegradable Synthetic Ester / Water-Glycol | Eco-certified fluids safe for marine mammals |
| Hydraulic Power Pack | 4.0 kW Remote-Mounted Power Unit (Dry Room Installation) | Sized per required cycle speed and line distance |
| Vertical Lifting Speed | 2.0 – 4.0 m/min (Proportional speed control) | High-speed stage options up to 10 m/min |
| Safety Perimeter Guarding | SUS304 Handrails + Expanding Mesh Safety Net Skirt | Stainless bellows / Interlocked underwater safety gates |
| Control Console | 24V DC Poolside Push-Button Console + Remote Pendant | DMX512 / Art-Net show control automation integration |
| Electrical Power Rating | 380V / 50Hz / 3-Phase (4-Wire) | Fully Customizable to Client Specifications (208V–480V, 60Hz) |
The scissor pantograph arm assembly uses heavy-wall structural steel treated with thermal zinc spray and a high-build marine epoxy barrier coat (optional solid SUS316L stainless steel). Hydraulic cylinders feature double-lip polyurethane rod wipers, internal ceramic-coated stainless steel piston rods, and IP68 external gland seals that prevent water ingress under 3-meter hydrostatic pressure. Pivot pins use self-lubricating composite polymer bushings that function in full water submersion without petroleum grease discharge.
The hydraulic power unit sits in a remote plant room outside the pool basin, linked via stainless steel hydraulic hard lines and heavy-wall flexible hoses. High-pressure quick-disconnect fittings allow fluid extraction and seal inspection without draining the pool. GRADIN provides a 12-month marine environment warranty, full structural calculation books, underwater installation guidelines, and direct spare seal kit dispatch.
A low-voltage 24V DC poolside operator panel provides proportional joystick control for positioning between full submersion and flush deck elevation. The perimeter of the lift incorporates a flexible multi-color safety net skirt that collapses and expands during vertical travel to prevent performer entanglement. For facilities staging dry-land mechanical maintenance or backstage prop loading, technicians can implement complementary custom hydraulic scissor tables along equipment corridors.
Integrated hydraulic pilot-operated check valves lock cylinder extension in place upon power interruption or hydraulic line pressure decay. Perimeter stainless steel handrails with intermediate mid-rails protect performers along the open water edge. The lifting platform satisfies international entertainment and machinery safety directives:
ANSI MH29.1 safety requirements for industrial scissor lifts and movable platforms
OSHA 1910 general industry safety standards for working platforms and guardrails
DIN 56950-1 Entertainment Technology – Machinery Installations – Safety Requirements and Testing
CE Machinery Directive 2006/42/EC compliance for stage machinery and performance lifts
Aquatic Theme Park Theaters: Elevating acrobats, divers, and stage props from underwater holding chambers to pool water level during live shows.
Oceanarium Marine Mammal Handling: Controlled vertical positioning of dolphins and sea lions between medical holding pools and dry examination platforms.
Hotel Resort Water Show Stages: Concealed underwater stage platforms that emerge above water level for evening theatrical productions.
Commercial Dive Training Centers: Variable-depth training platforms for recreational, commercial, and military diver buoyancy practice.
Synchronized Swimming Competitions: Adjustable-depth false pool floors for artistic swimming routine staging and athlete presentations.
Film & Television Water Tank Sets: Submerged camera and actor staging platforms inside specialized aquatic production studios.
For this heavy-duty series, we can engineer load capacities up to [300] tons, with platform dimensions and lifting heights customized to your operational envelope. Requirements exceeding our standard engineering matrix will undergo a Finite Element Analysis (FEA) by our engineering team to ensure structural viability before proposing a solution.
To initiate the engineering proposal, please provide the following baseline data:
Rated Load Capacity
Maximum Lifting Height & Closed Height
Platform Dimensions (L x W)
Duty Cycle (e.g., operational cycles per hour/day)
Environmental Conditions (e.g., indoor/outdoor, washdown, explosion-proof)
Pit depth or overhead clearance constraints
Yes. The control systems can be equipped with standard communication protocols (e.g., Profinet, Modbus, Ethernet/IP) utilizing [Siemens / Allen-Bradley / Omron] PLCs. This ensures seamless I/O signal synchronization with upstream/downstream conveyors, AGV/AMR units, and your central control room.
Every custom unit undergoes a mandatory Factory Acceptance Test (FAT) prior to dispatch. This includes continuous operational testing at 100% rated load, static overload testing at [120% / 125%] capacity, and the physical triggering of all mechanical anti-fall and hydraulic safety interlocks. FAT documentation and video proof are included in your engineering package.
Upon final approval of the General Arrangement (GA) drawings, the manufacturing lead time is typically 4 to 8 weeks. Oversized structural components are engineered with a modular design to fit into standard shipping containers (20FT/40HQ). On-site assembly utilizes pre-engineered bolted flange connections and heavy-duty aviation plugs, strictly eliminating the need for field welding.
We provide a standard [12/24]-month warranty covering the structural frame and primary hydraulic/electrical components. To minimize operational downtime, a comprehensive set of standard consumables (e.g., cylinder seal kits, travel switches, relays) is shipped alongside your equipment. During the warranty period, replacement parts for non-human-induced failures are dispatched via priority air freight (DHL/FedEx) within 48 hours.
Beyond the warranty, we guarantee lifetime engineering support. Your custom equipment's CAD drawings, electrical schematics, and BOM (Bill of Materials) are permanently archived in our system. This ensures you receive uninterrupted remote troubleshooting, maintenance guidance, and exact spare parts matching for the entire lifecycle of the equipment.
Gradin Machinery is a leading manufacturer specializing in aerial work platforms and hydraulic lifting solutions. With ISO & CE certifications, we provide safe, reliable, and customized equipment for global industrial needs
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