The SJD-L4 hydraulic cargo lift utilizes a reinforced four-post structural matrix to provide a high-capacity vertical transport platform for oversized or extreme-tonnage payloads. Standard single or dual-mast hydraulic lifts frequently suffer from severe platform racking and guide rail binding when subjected to heavy, off-center dynamic loads—such as a forklift driving onto one corner of the deck. Gradin engineers these heavy-duty L4-series VRCs by positioning synchronized hydraulic actuators within a rigid four-column frame, utilizing precision mechanical flow dividers to guarantee equal fluid displacement and a perfectly level ascent. Every hydraulic power unit, cylinder stroke length, and reinforced carriage frame is custom-calculated to accommodate your specific payload footprint and completely eliminate eccentric loading failures in high-volume industrial environments.
| Technical Parameter | Standard Range | Maximum Customization |
| Load Capacity | 1,000 kg — 5,000 kg | Up to 50,000 kg (50 Tons) |
| Platform Dimensions | 1500 * 2000 mm | Fully Tailored to Any Size |
| Lifting Height | 2,000 mm — 12,000 mm | Up to 25,000 mm (25 Meters) |
| Lifting Speed | 4 — 6 m/min | High-speed Inverter Control |
| Post Structure | 4-Post Steel Rail | Reinforced Multi-Post |
| Control Interface | Digital Push Button | PLC / Remote / Full Automation |
| Power Source | 380V / 220V / 415V | Explosion-proof / DC Battery |
The Gradin SJD-L4 Hydraulic Cargo Lift is a powerful and reliable industrial lifting solution, expertly engineered for the secure and efficient vertical transport of heavy goods across multiple floor levels. This robust system is indispensable for modern facilities demanding high capacity, unwavering stability, and uncompromising operational safety.
It combines heavy-duty hydraulic mechanics with precision engineering, ensuring smooth, tilt-free operation even with massive loads. The Gradin SJD-L4 Hydraulic Cargo Lift is the ultimate choice for businesses seeking to optimize multi-level material flow while ensuring maximum product integrity and workplace security.
Exceptional Load Capacity: Standard 5 Tons, Custom Engineered up to 50 Tons: The Gradin SJD-L4 Hydraulic Cargo Lift offers an impressive standard load capacity of 5 Tons, with custom engineering available to accommodate up to a massive 50 Tons. This broad payload capability makes it ideal for handling diverse heavy industrial goods, from large pallets to colossal machinery components.
Reliable Vertical Travel Height Available Up to 25 Meters: Excelling in multi-story industrial and commercial applications, this lift provides reliable vertical travel available up to an impressive 25 Meters. This extensive lifting height ensures efficient access to numerous floor levels, high-bay storage areas, and elevated production lines, enhancing logistical flexibility.
Fully Tailored Custom Platform Dimensions to Fit Your Shaft Space: The Gradin SJD-L4 Hydraulic Cargo Lift features a custom platform with dimensions fully tailored to fit your specific shaft space and operational requirements. This bespoke approach ensures perfect integration into any facility layout, maximizing usable space and optimizing material flow efficiency.
Reinforced 2-Cylinder 4-Post Structure for Dual Stability & Zero-Tilt Lifting: Experience unparalleled stability with the lift’s reinforced 2-Cylinder 4-Post structure, designed for zero-tilt lifting. This dual stability system ensures that the platform remains perfectly level throughout its ascent and descent, protecting cargo and providing smooth, safe operations under heavy loads.
Safety First: ISO & CE Certified with Emergency Anti-Fall Locking System: The Gradin SJD-L4 Hydraulic Cargo Lift prioritizes safety, being fully ISO & CE Certified, and integrating an emergency anti-fall locking system. These certifications and robust safety features guarantee adherence to stringent international safety standards, providing peace of mind and secure operation in line with global INDUSTRIAL SAFETY STANDARDS .
Multi-Story Manufacturing & Assembly Plants: Ideal for vertically transporting heavy components, large work-in-progress, and finished products between various production floors in tall industrial buildings. Its high load capacity and dual stability ensure continuous, safe material flow for complex manufacturing processes.
Warehousing & Distribution Centers: Indispensable for moving massive pallets, heavy containers, and bulky goods across several floors in facilities with significant vertical clearance. The custom platform and robust lifting capabilities optimize storage density and material handling efficiency in large-scale logistical operations.
Automotive & Aerospace Industry: Perfect for the secure vertical transport of heavy engine blocks, vehicle chassis, aircraft components, and large tooling between production and assembly stages. The reinforced structure and safety features are critical for handling high-value and sensitive industrial parts.
Heavy Industry & Construction Sites: Crucial for lifting large and heavy materials, equipment, and structural components between different levels in steel mills, foundries, or active construction zones. Its rugged design and high lifting capacity provide essential support for demanding industrial environments.
Commercial & Retail Complexes (Back-of-House): Facilitates the efficient and robust movement of bulk stock, large display items, and heavy supplies between multiple retail levels, storage areas, and receiving docks. The custom platform and reliable lifting ensure seamless replenishment and support uninterrupted commercial operations, as a core part of HYDRAULIC CARGO LIFTS .
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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