Moving heavy raw materials vertically across 17-meter mezzanines is notoriously difficult. Standard freight elevators are slow, lack precise leveling, and fail to integrate with automated factory dispatch systems. This operational gap causes pallet trucks to hitch at landings, damages fragile assemblies, and stalls your automated guided vehicles (AGVs) Gradin’s Hydraulic Goods Lift solves these floor-to-floor logistics bottlenecks. Engineered as an incredibly rigid 4-Cylinder 8-Column Hydraulic Lift, this unit is built with custom-aligned guide rails, full-height Perforated Shaft Cladding Lift enclosures, and rapid High-Speed Shutter Door Lift gateways. Compliant with international ASME B20.1 safety codes, it integrates flawlessly with your warehouse management systems, securing seamless material transfer. Consult with our engineers and explore our Gradin Custom Material Lifts to customize your mezzanine setup.
The technical parameters in the table below correspond to the 3-stop reciprocating elevator (W2) built for multi-level industrial mezzanine facilities.
| Technical Parameter | Standard Specification (Freight Elevator W2) | Bespoke Customization Support |
| Model Designation | W2 / SJG Hydraulic Lifting Platform | Custom dimensions configured per your building shaft |
| Platform Deck Dimensions | 2,600 mm x 3,200 mm / Ground-Flush Circular Lift | Custom dimensions up to 6,000 x 8,000 mm |
| Rated Load Capacity | 5,000 kg (5 Tons) / Hydraulic Goods Lift | Custom structural design up to 20,000 kg (20 Tons) |
| Lifting Height / Stroke | 17,100 mm (17.1 Meters) | Custom travel heights up to 25,000 mm (25 Meters) |
| Guide Rail Specifications | 125H Steel * 8 Columns (Guide Rail Freight Elevator) | Heavy H-section or double channel options |
| Hydraulic Drive Cylinder | Φ80-60 * 4 Cylinders (4-Cylinder 8-Column Hydraulic Lift) | Symmetrically balanced Multi-Cylinder configurations |
| Landing Stations / Level Stops | 3 Stops, 3 Stations | Multi-stop digital selector programming |
| Motor Pump Station | Siemens 7.5kW Pump (New Grade 2 Energy Efficiency) | Heavy-duty explosion-proof or low-noise HPUs |
| Landing Gate Doors | 3 Sets of Rigid High-Speed Dark Gray Shutter Doors | Fire-rated swing doors or manual telescope gates |
| Outer Cladding Protection | 1.2mm Perforated Plate Enclosure (RAL9003 White) | Solid steel cladding, tempered glass, or safety mesh |
| Smart System Controls | Siemens S7 Smart PLC (Includes AGV Linkage Module) |
Schneider electrics / WMS automatic integration |
AGV Wireless Handshake Integration: We eliminate manual dispatch wait times. The Hydraulic Goods Lift features an integrated Siemens S7 Smart PLC control panel with an AGV trolley linkage module and Schneider electrics -> allowing laser-guided automated guided vehicles to wirelessly summon the lift, coordinate auto-infeed, and change floors without human operators.
4-Cylinder 8-Column Rigid Framing: Standard 2-rail cargo lifts flex severely under off-center 5,000 kg dynamic loads. Gradin engineers a 4-Cylinder 8-Column Hydraulic Lift structure with 125H steel guide rails -> distributing load forces evenly to prevent platform twisting and ensure perfectly straight, quiet tracking over 17.1-meter travels.
Siemens Grade 2 Energy-Efficient Motor: Low-quality pumps run hot and trigger thermal shutdowns during 24/7 high-cycle periods. Utilizing a 7.5kW Siemens hydraulic motor rated at the New Grade 2 Energy Efficiency standard -> providing consistent high-pressure fluid flow at lower noise levels, cutting electricity consumption significantly.
Landing Fast-Rolling Shutter Doors: Manual steel gates allow workshop dust, chemical vapors, or drafts to leak between factory levels. We install 3 sets of dark gray high-speed rigid rolling shutter doors (W2500 x H3500mm) at each stopping level -> opening and sealing in seconds to maintain constant air pressure and temperature between floors.
Full-Height Perforated Safety Cladding: Ugly wire mesh cages look unprofessional and fail strict OSHA/cleanroom audits. Gradin surrounds the hoistway with a 1.2mm thick perforated steel plate enclosure in high-durability RAL9003 white -> creating a full-height dust and fall-prevention barrier that matches cleanroom aesthetics.
Vibration-Free Platform Mechanics: Sliding heavy dollies continuously on the lift deck wears down standard bearings. Our platform deck is built with a 6mm carbon steel checkered plate supported on premium NSK sliding guide bearings -> reducing running friction and ensuring zero horizontal drift during 3-stop reciprocating transitions.
Smart Cylinder Leveling & Safety Burst Valves: Minor hydraulic oil leaks can cause platforms to drift down during overnight staging, leaving dangerous steps. Every SJG Hydraulic Lifting Platform cylinder includes automatic hydraulic leveling devices and emergency rupture valves -> compensating pressure in real-time and locking the carriage instantly if a hose bursts.
Zero-Blindspot landing Workspace Lighting: Forklift operators loading pallets in dimly lit factories often crash into closed gates. We integrate 220V low-voltage energy-saving LED lighting inside each level paired with bright digital indicator controls -> ensuring maximum visibility for logistics operators and stopping door-collision accidents.
Multi-Level Industrial Waste Gas Equipment Plants (Environmental Engineering): In heavy environmental machinery fabrication facilities, massive sheets, raw carbon bins, and large scrubbers need to move from the ground floor preparation zone to upper mezzanine floors for assembly. The Hydraulic Goods Lift operates as a high-capacity vertical artery, lifting heavy carbon canisters over 17 meters with zero platform tilt. Its sealed white outer enclosure isolates the cargo from welding dust below, keeping different processing zones climate-controlled.
AGV Robot Dispattered Automated Distribution Center (Smart Logistics): Large logistics hubs require a continuous loop of materials travelling from ground unpacking stations up to high storage mezzanines. Our AGV-Integrated VRC allows self-navigating warehouse robots to interact with the lift automatically. The Siemens S7-PLC calls the elevator, triggers the dark grey high-speed shutter gates, and processes pallet transitions 24 hours a day with no human supervisors in sight.
Automotive Engine and Powertrain Assembly Warehouses (Heavy Manufacturing): Automotive parts vaults require massive quantities of heavy metal chassis blocks and transmissions to move continuously from ground sorting areas up to clean assembly platforms. This heavy-duty Guide Rail Freight Elevator with its 4-cylinder 8-column steel framing supports the 5,000 kg dynamic shock loads of heavy pallet jacks easily, preventing any vibration-induced damage to delicate engine components.
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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