A heavy-duty lifting platform engineered with dual-scissor mechanisms for exceptionally long or oversized payloads. 100% custom-built, it utilizes multi-cylinder synchronous flow control to neutralize eccentric bending moments, ensuring absolute structural rigidity and zero platform deflection across extended industrial spans.
Elongated Geometries: Platform dimensions and dual-scissor matrices strictly calculated for your specific oversized cargo, sheet metal, or extended assembly loads.
Synchronous Actuation: Multi-axis hydraulic flow dividers guarantee identical ascent/descent rates, preventing structural racking under unbalanced tonnage.
Kinetic Integrity: FEA-validated reinforced pivot points and heavy-duty steel legs engineered to sustain severe torsional stress without elastic fatigue.
| Technical Category | Engineering Keys | Standard Reference | Gradin Bespoke (ETO Options) |
| I. Performance | Rated Payload Capacity | 1,000 kg – 5,000 kg | Scalable 10,000kg to 150,000kg+ |
| Deck Longitudinal Span | 2,000 mm – 4,000 mm | Tandem Configuration (Up to 25m+) | |
| Positioning Accuracy | ± 30 mm | Sub-Millimeter Calibration (± 1 mm) | |
| II. Structural | Scissor Architecture | Single Scissor Set | Dual/Multi-Bank Tandem (FEA-Optimized) |
| Actuation System | Basic Hydraulic Gear | Servo-Hydraulic / Multi-Cylinder Sync | |
| Surface Protection | Industrial Paint | C5-M Marine / Stainless / Anti-Static | |
| III. Intelligence | Control Architecture | Siemens S7-1500 | Industry 4.0 / 5G Smart Integration |
| Handshake Protocol | Manual I/O Signals | Profinet / EtherCAT / TCP-IP | |
| Feedback Mechanism | Limit Switches | Absolute Encoders / Laser Rangefinders | |
| IV. Compliance | Risk Mitigation | Velocity Fuse | Active SIL 3 / Redundant Safety Loop |
| Global Standards | Local Codes | OSHA / ASME B20.1 / ISO 13849 |
Operating a Gradin Bespoke Tandem Scissor Lift with oversized or high-density cargo—such as a 10T aerospace wing or a 100T stamping die—introduces extreme structural stress, particularly torsional forces across the longitudinal axis. Unlike standard lifts that struggle with “platform-twist” and structural fatigue, our H-Series systems utilize advanced Finite Element Analysis (FEA) to optimize the dual-bank scissor geometry for your specific load-center. We utilize high-yield box-section alloy steel for the structural arms, ensuring that the extra-long platform maintains absolute horizontal equilibrium even when the cargo is positioned asymmetrically. This structural stiffness neutralizes the deflection and “shudder” common in generic tandem lifts, preserving the fatigue life of the entire assembly over decades of high-frequency operation in heavy industrial environments.
Standard tandem lifts often suffer from “uneven ascent” where one scissor bank moves out of sync with the other, creating dangerous deck angles that trigger AGV safety faults. The Gradin Bespoke Tandem Scissor Lift bypasses these mechanical failures through a Closed-Loop Servo-Hydraulic Architecture integrated natively into our drive logic. Utilizing the Siemens S7-1500 PLC suite, the system achieves sub-millimeter deck alignment (±1mm) across the entire platform length. By monitoring real-time pressure and encoder feedback from multiple synchronized cylinders, the system automatically adjusts fluid flow to compensate for uneven load distribution. This results in a seamless vertical artery that eliminates mechanical shock, significantly reducing building vibration and cargo shift during high-capacity vertical indexing.
The Gradin Bespoke Tandem Scissor Lift functions as more than a vertical transporter; it is an intelligent data node within your facility’s digital nervous system. It is designed for seamless native integration with modern Warehouse Management Systems (WMS) and Automated Storage and Retrieval Systems (AS/RS). Through Profinet or 5G connectivity, the system facilitates a real-time data handshake, reporting payload weights, cycle health, and cylinder pressure profiles directly to your MES. To ensure maximum uptime in 24/7 industrial hubs, integrated vibration sensors and oil-temperature profilers track the “health signature” of the hydraulic loop. This Predictive Maintenance Monitoring identifies seal wear or motor anomalies before they result in unplanned downtime, transforming maintenance from a reactive task to a scheduled, data-driven strategy for oversized material handling.
In vehicle manufacturing, moving 10T–50T oversized chassis frames between ground-level storage and mezzanine assembly lines requires absolute structural stability. The Gradin Bespoke Tandem Scissor Lift provides the required rigidity to handle the 10-meter+ length of the frames. Its sub-millimeter leveling ensures that automated robotic arms can interface with the cargo on the deck with zero positional error, protecting high-value automotive components from kinetic shock during the transfer process.
Vertical transit of extra-long aerospace wing sections requires a vibration-free vertical link. The bespoke Gradin Bespoke Tandem Scissor Lift utilizes specialized soft-start/stop dynamics and vibration-dampened carrier mounts. This ensures that sensitive internal structures of the wing are never subjected to harmonic resonance or sudden G-force changes during vertical indexing, making it an ideal choice for high-precision aerospace assembly floors where structural integrity is non-negotiable.
Moving high-density dies across long-format decks demands 100% continuous duty cycles and extreme point-load resilience. The custom Gradin Bespoke Tandem Scissor Lift is engineered with FEA-optimized structural decks designed to handle concentrated point loads at any location on the platform. By eliminating the deflection inherent in standard tandem lifts, the H-Series provides a reliable vertical artery that sustains non-stop die-changing cycles even in the most demanding metal-stamping environments.
Redundant Engineering as the Absolute Engineering Priority
Safety in high-tonnage oversized vertical logistics—especially where AMRs and human operators interface with heavy-duty open platforms—is the core of our engineering mandate. The Gradin Bespoke Tandem Scissor Lift exceeds international regulatory standards through a multi-layered redundancy loop:
Active SIL 3 Risk Mitigation: We integrate ultra-fast pressure-sensing valves and secondary mechanical anti-fall cams that engage guide rails instantly if any deviation in velocity or synchronization is detected between the tandem banks.
Perimeter Safety Interlocks: Every system is designed with full-height safety bellows or shaft enclosures, electronically interlocked with the ASME B20.1 safety PLC logic to ensure zero operator access during transit.
Fail-Safe Hydraulic Redundancy: Dual-channel electromagnetic safety valves and redundant power units provide a 200% safety margin. These engage instantly during an E-stop or power loss, securing the high-capacity platform and protecting the facility infrastructure from catastrophic failure.
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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