Handling massive corrugated paperboard stacks and heavy jumbo rolls in continuous packaging plants requires rugged lifting solutions to sustain high-speed output. This tailor-made pit-mounted industrial scissor lift platform optimizes vertical raw material delivery directly into die-cutting and folding-gluing processing lines.
Heavy Cardboard Stack Transit: Engineered structural frames resist intense loading impacts from heavy palletized paperboard stacks.
Dust-Tight Hydraulic Components: Specialized rod wipers protect cylinder seals from abrasive airborne paper fibers and dust.
Flush Pit-Mounted Alignment: Sinks completely level with warehouse floor to allow seamless forklift transit.
| Technical Parameter | Standard Specification | Customization Options |
| Nominal Load Capacity | 5000 kg | Tailored from 1000 kg to 30000 kg (Fully Customizable) |
| Standard Platform Length | 4500 mm | Scaled from 1500 mm to 8000 mm based on pallet layout (Fully Customizable) |
| Standard Platform Width | 2400 mm | Scaled from 1000 mm to 4000 mm based on stack width (Fully Customizable) |
| Maximum Lifting Stroke | 2200 mm | Engineered to match different factory floor heights (Fully Customizable) |
| Lowered Closed Height | 550 mm | Designed to fit specific concrete pit depths (Fully Customizable) |
| Lift Drive Mechanism | Electro-hydraulic pump pack | High-frequency motor configurations for 24/7 lines (Fully Customizable) |
| Platform Surface Finish | Smooth or checkered steel plate | Optional motorized rollers or ball transfers (Fully Customizable) |
| Control Interface Voltage | 24V DC safety control | PLC terminal block integration available (Fully Customizable) |
Structural scissor arms utilize solid Q345B steel plates to prevent twisting under off-center loading from paper rolls.
Double-layered braided hydraulic hoses with burst protection jackets provide a high safety ratio during peak line operations.
Anti-corrosive industrial zinc-rich primer combined with acrylic enamel finishes protects the frame in humid pulp processing environments.
Pivot points utilize high-performance composite self-lubricating bearings to repel fine paper dust and minimize wear.
Pit-accessible maintenance hatches on the platform plate permit convenient inspections of safety valves without lifting the frame.
Structural components are covered by an extensive 12-month factory warranty with dedicated replacement parts logistics.
Intuitive dual-button wall control stations facilitate easy height adjustments for operators near corrugated board production lines.
Heavy welded lifting eyes on the outer frames assist crane rigging during deep foundation pit placements.
Integrated mechanical travel limiters ensure the platform stops perfectly level with ground conveyors to prevent cardboard jams.
Internal velocity-fuses shut down hydraulic return lines instantly in the rare event of pressure loss.
Platform surfaces feature industrial-grade checkered steel plating to prevent heavy paper rolls from sliding.
Safety perimeter switch frames halt descent automatically upon contact with any foreign objects near the pit edge.
Standardizations and Certifications:
Leveling corrugated paperboard stacks between automated slitter-scorers and stackers.
In-feed lifting of raw paper rolls to conveyor lines feeding corrugating rolls.
Height adjustment at die-cutting and carton-gluing stations to reduce operator bending strain.
Loading finished carton pallets into shipping container vehicles via pit-to-dock transitions.
Integrating with powered roller conveyors for multi-stage box packaging production flows.
Under-floor scrap conveyor feeding for paper shavings disposal below factory grade.
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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