This rail-guided scissor platform positions assembly technicians along heavy excavator frame weldments. The machine combines motorized floor track travel, a 1000 mm vertical scissor elevation, and dual slide-out cantilever decks to access longitudinal joint seams without ladders or scaffolding.
Rated Payload Capacity: 500 kg Safe Working Load (300 kg distributed center deck, 150 kg per slide-out extension)
Chassis Envelope (Rail-Guided): 5000 × 1000 × 500 mm (L × W × Collapsed Height, floor-track envelope)
3-Axis Motion Profile: 1000 mm vertical lift at 2.0 m/min; motorized track travel; manual slide-out extension
Usable Deck Surface: 5000 mm retracted to 7000 mm extended length × 1000 mm width with anti-slip plate
| Technical Parameter | Engineering Specification / Design Standard |
| Equipment Model | Rail-Mounted Scissor Lift Table (Telescopic Assembly Deck) |
| Structural Kinematics | Dual-span single-stage scissor on motorized rail base chassis |
| Rated Payload Capacity | 500 kg Safe Working Load (Structural safety factor
) |
| Base Deck Dimensions | 5000 mm L × 1000 mm W checkered steel deck |
| Extended Deck Span | 7000 mm overall length via dual telescopic platform extensions |
| Telescopic Drive Stroke | 1000 mm stroke on each end driven by electric ball-screw thrusters |
| Vertical Lift Travel | 1000 mm stroke (collapsed height 500 mm, raised height 1500 mm) |
| Vertical Lifting Speed | 2.0 to 3.0 m/min controlled hydraulic travel speed |
| Ground Travel Velocity | 2.0 to 10.0 m/min VFD-regulated track traverse with disc brake |
| Floor Track Profile | Dual runs of 8-meter P22 light crane rail embedded drive system |
| Scissor Leg Material | 200 × 100 × 8 mm ASTM A572 Grade 50 structural rectangular tubing |
| Platform Deck Plate | 4 mm heavy-duty anti-skid steel checkered plate |
| Base Chassis Beams | UPN 160 / C150 structural steel channels per ASTM A36 |
| Hydraulic Lift Cylinders | Dual heavy-duty cylinders (Ø90 mm bore / Ø70 mm rod) with lock valves |
| Power Station Output | 4.0 kW 380V/400V power pack, CETOP 03/NG6 modular manifold valves |
| Material Traceability | Certified mill inspection dossiers supplied per EN 10204 Type 3.1 |
| Control Architecture | Integrated Siemens S7 PLC logic with Schneider industrial pushbuttons |
| Remote Operation Gear | Dual industrial wireless radio transmitters with physical safety key |
| Perimeter Fall Defense | 1100 mm lockable guardrails with full-length overhead fall arrest line |
| Secondary Boarding Aid | Detachable steel step ladder for low-position carriage access |
| Design Standard Basis | ANSI/SAIA A92.20 mobile elevating work platform safety rules |
Precision sawing and line boring shape the primary pantograph linkages from ASTM A572 Grade 50 high-strength rectangular hollow sections (200 × 100 × 8 mm). This high section modulus resists lateral twisting under asymmetric technician movement across the extended 5-meter chassis. Heat-treated alloy steel pivot pins (Ø90 mm) rotate inside self-lubricating composite bushings to prevent joint galling. Certified EN 10204 Type 3.1 inspection sheets trace raw plate metallurgy, while all primary structural chassis welds undergo inspection per AWS D1.1.
Precision-milled guide rails paired with recirculating linear ball slides control horizontal deck expansion. Twin electric ball-screw thrusters extend the working platform from 5000 mm out to 7000 mm overall length. The center deck sustains a 300 kg distributed load, while each slide-out extension supports a 150 kg tooling payload with positive mechanical travel stops, giving fitters direct access to recessed frame seams without structural sag.
Induction surface hardening on flanged cast steel wheels stops tread wear and keeps the rig tracking true along factory floors. The integrated chassis traverses an 8-meter P22 light crane rail layout powered by an electric brake gearmotor. Floor rail sweepers push debris off the wheel path, while under-rail hook brackets grip the rail base to prevent carriage tipping during off-center technician staging.
Isolated terminal barrier strips and shielded signal conduits stop electrical noise coupling inside the onboard IP54 control console. An integrated Siemens S7 PLC interlocks all motion axes: rail transit locks out whenever the scissor elevates, and deck extensions disable while personnel perimeter safety gates remain open. Industrial radio remotes provide low-speed jogging control, conforming to ANSI/SAIA A92.20 mobile elevating work platform mandates.
Heavy equipment fabrication plants place this platform along longitudinal chassis fixtures. The rig traverses P22 floor tracks to position welders along excavator boom pivots and box girders, sustaining up to 40% asymmetric personnel load across the 1000 mm deck width. Civil installation requires P22 rails set into recessed floor channels flush with the finished slab datum, allowing cross-bay vehicle traffic. Foundations demand 20 MPa concrete capable of supporting a 10 kN maximum dynamic point load per wheel. Rated for plant thermal spans from -10°C to +45°C.
Commercial vehicle assembly plants deploy dual telescopic platform extensions to span clearance zones across chassis fixture stands without ladder setups. Fitters stand on the 4 mm anti-skid checkered deck to torque suspension hangers and frame cross-members directly against the truck rail web, operating below crane-suspended components without hoist hook interference. Embedded steel plates secure the rail anchor ties against dynamic wheel transfer reactions across ambient workshop temperatures of 0°C to +50°C.
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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