LX Type Multi-Support Electric Single-Girder Suspension Crane
The LX Type Multi-Support Electric Single-Girder Suspension Crane is a premium lifting solution engineered specifically for aerospace assembly, aircraft maintenance hangars, and ultra-wide-span industrial facilities. Featuring a lightweight simply supported main girder design with a flexible hoist point system, it achieves spans up to 90m with lifting capacities from 3 to 40t and 3 to 8 configurable support points. Equipped with a modern electric hoist and integrated inverter drive mechanisms, it supports multi-crane synchronized lifting and PLC-based synchronization control — setting the benchmark for suspension crane systems in the aerospace sector.
▲ LX Type Multi-Support Single-Girder Suspension Crane in operation (click to enlarge)
Product Overview
The LX Type Multi-Support Electric Single-Girder Suspension Crane — also referred to as the aerospace multi-support crane — is a purpose-built model developed by Kelude Heavy Industry for precision hoisting applications such as aircraft final assembly lines, fuselage component handling, and wing mating operations. Unlike conventional overhead cranes, this model is suspended directly from the factory roof truss structure, eliminating the need for floor-mounted columns and crane rail foundations. For extra-wide spans (up to 90m), 3 to 8 flexible support points are positioned along the span to distribute the load, ensuring main girder stiffness while preserving the structural integrity of the roof truss.
Performance Parameters
| Parameter Item | Specification |
|---|---|
| Lifting Capacity | 3t / 5t / 10t / 15t / 16t / 20t / 30t / 32t / 40t |
| Number of Support Points | 3 / 4 / 5 / 6 / 7 / 8 Support Point(According to Span Customization) |
| Maximum Total Span | 90m |
| Lifting Height | 3~30m |
| Work Duty / Classification | A3 / A4 / A5 |
| Lifting Speed | 0~5 m/min(Variable Frequency Speed Control) |
| trolley speed | 2~20 m/min(Variable Frequency Speed Control) |
| travel speed | 5~32 m/min(Variable Frequency Speed Control) |
| Control Mode | Ground Pendant Controller + Wireless remote control |
| Power Supply | Three-Phase AC 380V±10% / 50Hz±1% |
| Safety Configuration | Emergency Stop Button, Leakage protection, Reliable Grounding, Warning sign |
Product Features
Ultra-Long Span Total span up to 90m, covering an entire aircraft assembly line
Grid Structure Compensation Simply supported main girder design accommodates grid deflection, arching, and thermal expansion/contraction
Precision Synchronization Multiple hoists operate in precise sync, with PLC monitoring of three-mechanism coordination
Modular Design Lightweight design + modular construction + automation, flexibly expandable
Anti-Sway & Vibration Damping Micro-speed load control + inching + anti-sway control ensures zero sway during aircraft component hoisting
Intelligent Control Variable frequency speed control + PLC synchronization + dual-mode operation via pendant or remote control
Core Technology Configuration
| System | Configuration Description |
|---|---|
| Main Girder Structure | Shear Support Beam Design——Under Grid Structure Settlement, Camber, Caused by Thermal Expansion and Contraction Deformation With Compensation Capability, Ensure Normal Operation |
| Hoisting mechanism | New Chinese Style Electric Hoist——Safe and Reliable Performance, Energy Saving and Environmental Protection, Integrated Three-in-One Unitdrive unit |
| End Carriage System | Single Wheel flange Wheel+Guide Roller, Wear-Resistant Ductile Iron or Engineering Plastic Travel Wheels, Independent Friction Drive Wheel Transmit Driving Force |
| Anti-wheel rail gnawing / flange rubbing | End Carriage Both Ends Guide Roller Device+driving wheel High Friction Coefficient Design, Eliminate wheel rail gnawing / flange rubbing and slipping |
| Electrical Control | Variable Frequency Speed Control System, PLCMonitoring Independent or Linked Operation of Three Mechanisms, Configuration Emergency Stop Button+Leakage protection+Reliable Grounding |
| Synchronization Function | Multiple Unitscrane Linked Lifting Operation——Crane Bridge / Long Travel/Trolley / Cross Travel/Hoisting / Lifting Three Mechanisms Speed Matching+position closed-loop control, Realize Aircraft Component Precise Alignment |
Application Scenarios
- Aircraft Final Assembly Lines — Ultra-large spans (>60m) covering multi-station hoisting for fuselage, wings, tail, and engine sections
- Spacecraft Assembly Halls — Multi-crane synchronized lifting, turning, and docking of rocket segments and satellite components
- Large Aircraft Manufacturing Plants — Whole-aircraft transfer, in-plant air transport of fuselage sections, and wing-to-fuselage mating
- Aircraft MRO Hangars — Multi-point coverage over wide-body aircraft maintenance areas, with precise positioning for engine removal and installation
- Ultra-Large-Span Industrial Buildings — 40~90m span light-steel grid structures, column-free, maximizing floor space utilization
FAQ
Q: What is the difference between the LX Type and the LXD/DXT Type multi-point suspension cranes?
A: The LX Type is the upgraded iteration of the LXD/DXT series. The core differences are: ① Main girder design — the LX uses a simply supported girder design with active compensation for grid structure deformation, while the DXT uses a traditional box girder; ② Hoisting mechanism — the LX comes standard with a new-generation electric hoist (energy-efficient + lightweight design), while the DXT is fitted with a European-style hoist; ③ Maximum span — the LX reaches 90m (aerospace grade), while the DXT is typically limited to ≤50m; ④ Control precision — the LX comes standard with multi-crane PLC synchronization (ideal for aircraft component mating), while this is optional on the DXT. In short: the LX is engineered for high-precision aerospace applications, while the DXT targets general industrial use.
Q: What are the advantages of the simply supported main girder design?
A: A traditional box girder is rigidly connected to the roof grid structure through the end carriages. When the grid deforms due to temperature changes or load variations (sagging, arching, or thermal expansion/contraction), this rigid connection transfers stress into the main girder, causing wheel rail gnawing or binding. The simply supported girder design uses hinged joints to release degrees of freedom, allowing the main girder to maintain runway rail straightness even when the grid structure deforms, preventing stress concentration. This design is particularly critical for hangars with large diurnal temperature swings and for spans exceeding 60m.
Q: How is synchronized lifting achieved with multiple cranes?
A: The LX Type comes standard with a PLC-based multi-crane synchronization control system: ① Each crane's long travel, cross travel, and hoisting mechanisms are equipped with encoders providing position feedback; ② The PLC collects real-time position data from all cranes via Profinet/CANopen Fieldbus and calculates deviations; ③ The master PLC dynamically adjusts the output frequency of each crane's VFDs to minimize position deviation (master-slave synchronization with cross-coupling control); ④ Typical synchronization accuracy reaches ±5mm (long travel direction) and ±2mm (hoisting direction). The system also features anti-sway functionality — suppressing load swing through acceleration S-curve planning and a load swing observer.
Q: What are the lead time and after-sales service terms?
A: Standard lead time is 30~45 days (including design, manufacturing, and in-house commissioning), with an additional 10~20 days for non-standard customizations. Kelude Heavy Industry offers: ① Free design service — hoist point layout and load calculations based on your workshop grid structure drawings; ② Nationwide installation & commissioning — professional on-site team for installation and PLC integration; ③ One-year free warranty plus lifetime technical support; ④ Optional remote operation & maintenance system — real-time monitoring of crane operating status and fault prediction. LX Type multi-point suspension cranes are already operating reliably at multiple aircraft manufacturing bases and MRO hangars across China.
Standards: GB/T 3811-2008 Crane Design Standard, GB/T 14405-2011 General Purpose Bridge Crane | Product Type: LX Type Multi-Point Suspension Crane | Henan Kelude Heavy Industry Co., Ltd.
