Elevating large theatrical scenic elements and multi-performer ensembles across extended platform spans requires synchronized vertical travel without deck bowing. This non-standard custom heavy-duty tandem scissor hydraulic stage lift utilizes a dual-span single-tier scissor architecture, delivering an 8000kg dynamic payload across a 10x3m platform with smooth 3-meter vertical travel.
Dual-Span Tandem Elevation: 10x3m heavy structural steel deck engineered with dual synchronized scissor mechanisms.
8-Ton Dynamic Load Rating: Powered by 4 synchronized hydraulic cylinders driven by an 11kW low-noise pump unit.
Flush Stage Pit Integration: 800mm collapsed height allows seamless flush mounting with the auditorium stage floor.
| Technical Parameter | Specification Value | Customization Status |
| Equipment Type | Tandem Single-Stage Hydraulic Scissor Stage Lift | Non-Standard Customization Available |
| Platform Configuration | Dual-Span Tandem Single-Tier Scissor Mechanism | Heavy-Duty Structural Steel Standard |
| Rated Load Capacity | 8000 kg (8 Tons Dynamic Load) | Fully Customizable to Client Specifications |
| Travel Stroke Height | 3000 mm (3.0 Meters) | Fully Customizable to Client Specifications |
| Platform Deck Dimensions | W10000 * D3000 mm (10m x 3m Long Platform) | Fully Customizable to Client Specifications |
| Collapsed Height / Pit Depth | 800 mm (Pit Flush Stage Installation) | Fully Customizable to Client Specifications |
| Lifting Speed Range | 2 – 4 m/min (Proportional Smooth Control) | Fully Customizable to Client Specifications |
| Hydraulic Cylinders | 4 Units Synchronized Heavy-Duty Cylinders | Heavy-Duty Component Standard |
| Hydraulic Power Unit | 11.0 kW Low-Noise Theatrical Hydraulic Station | Fully Customizable to Client Specifications |
| Synchronization System | Rotary Gear Flow Divider + Proportional Leveling Valves | Standard Precision Sync Package |
| Safety Features | Velocity Fuses, Perimeter Safety Edges, Emergency Descent | Standard Theatrical Safety Package |
| Control Method | Centralized Theatrical Operator Console + Remote Pendant | Fully Customizable to Client Specifications |
| Operating Noise Level | <= 55 dBA at 1 Meter (Silent Theatrical Design) | Acoustically Insulated Standard |
| Surface Finish & Paint | Anti-Corrosion Primer + Industrial Black Stage Finish | Fully Customizable to Client Specifications |
Constructed for heavy theatrical performances and extra-long industrial staging, the lift pantograph utilizes dual-span tandem scissor arms fabricated from heavy-duty structural steel rectangular tubing. The 10000*3000mm platform frame features an integrated cross-braced steel lattice capable of handling distributed dynamic loads up to 8000kg without center deflection. Elevation across a 3000mm stroke is driven by 4 heavy-duty synchronized hydraulic cylinders equipped with precision hard-chrome plated rods. The hydraulic unit features an 11kW low-noise motor with proportional flow control valves for silent stage movement. Structural integrity complies with OSHA workplace walking-working surface standards .
Built for long-term theatrical reliability, all scissor pivot bearings and cylinder trunnions feature self-lubricating composite bushings backed by accessible grease zerks. Hydraulic manifolds centralize all pressure-regulating valves within an acoustic enclosure to isolate motor noise. The IP55 control system incorporates thermal overloads and phase monitoring. Includes a 12-month structural and hydraulic warranty supported by detailed PDF/DWG layout blueprints and remote diagnostic telemetry.
Operation is orchestrated through an intuitive stage management control console featuring programmable preset heights and variable-speed joystick controls. The 800mm collapsed height allows the lift to retract completely flush into the stage floor pit, enabling rapid transformation between flat auditorium floors and multi-level performance tiers, as demonstrated in Heavy-Duty & Sync Lifts .
Stage engineering complies with international ANSI theatrical machinery safety protocols.
Hydraulic Flow Synchronization: Mechanical flow divider and proportional leveling valves maintain exact deck parallelism.
Cylinder Velocity Fuses: Explosion-proof check valves on each cylinder lock fluid instantly to prevent freefall in case of hose rupture.
Perimeter Optical & Contact Safety Edges: Platform edges incorporate safety edges that immediately halt motion if an obstruction is sensed.
Manual Emergency Descent: Integrated pilot-operated relief valves allow controlled platform lowering during facility power outages.
Overload Pressure Bypass: Pump relief valves prevent movement if payload exceeds the 8000kg rated capacity.
Theatrical Scenic & Prop Elevation: Smoothly lifting large mobile stage sets, vehicles, and scenery walls during live drama performances.
Orchestra Pit Elevating Platforms: Adjusting orchestra pit elevations between performance, auditorium seating, and storage levels.
Auditorium Multi-Level Staging: Transforming flat convention hall floors into stepped amphitheater seating platforms.
Extra-Long Industrial Component Assembly: Elevating 10-meter aerospace wings and composite airframes, as seen in Custom Maintenance Lifts .
Commercial Exhibition Auto Stages: Rotating and elevating heavy display vehicles in large-scale automotive expos.
Performing Arts Choir & Ensemble Lifts: Staging large choir groups and theatrical troupes with silent, jerk-free vertical movement.
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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