Outdoor Heavy-Duty Lifting Powerhouse | Truss Double-Girder Gantry Crane: Unfazed by Wind and Rain, Reliably Lifts Heavy Loads

In outdoor environments such as precast concrete factories, port yards, and wind power installation bases, heavy-duty lifting operations often face challenges such as large spans, strong wind resistance, and unstable power supply. Traditional equipment is either bulky and has poor wind resistance, or is limited by cable dragging, making it difficult to adapt to complex outdoor working conditions. This truss double-girder gantry crane, with its lightweight truss structure, stable cable reel power supply, and precise wireless remote control, becomes a reliable partner for outdoor heavy-duty lifting.

Technical Parameters：

✨ Core Advantages: Tailor-made for Outdoor Operations
1. Truss Double-Girder Structure, Lighter and More Wind-Resistant
Using a high-strength steel truss design, while ensuring large-span load-bearing capacity, it significantly reduces the equipment's self-weight, reducing wind resistance by more than 40% compared to traditional box-type structures. It can easily cope with strong wind environments in coastal areas and open factory areas, achieving stable lifting over ultra-large spans of 10-50 meters. The double-girder configuration improves lifting stability, suitable for heavy-duty operations of 20-100 tons, easily lifting heavy workpieces such as precast box girders and wind turbine towers.
2. Cable Reel Power Supply, Stable and Uninterrupted Operation
Equipped with an intelligent cable reel retraction and extension system, it can automatically retract and extend the cable as the crane moves, with a power supply distance of up to 100-300 meters, completely eliminating the problems of cable dragging and power interruptions. Continuous 380V three-phase AC power supply supports 24-hour uninterrupted operation, meeting the needs of long-distance, high-frequency lifting in outdoor environments, and is suitable for logistics turnover in large-span venues such as ports and mines.
3. Wireless Remote Control Operation, Flexible, Safe and Efficient
Equipped with an industrial-grade wireless remote control system, the effective control distance can reach 150 meters. Operators can achieve precise start-stop, luffing, and travel control within a safe line of sight, eliminating the need to work at high altitudes or in dangerous areas, ensuring personnel safety and improving lifting positioning accuracy (within ±20mm). The remote control handle comes with an emergency stop button, allowing for instant power cut-off in case of emergencies, thus reinforcing safety.
4. Weatherproof and corrosion-resistant design, fearless of harsh outdoor working conditions
The entire machine adopts a double anti-corrosion process of sandblasting and epoxy zinc-rich paint, making it resistant to salt spray and UV rays. It can operate stably in extreme temperatures from -20℃ to 60℃ and in harsh weather conditions such as rain, snow, and sandstorms. The wheels are made of wear-resistant cast steel, suitable for complex outdoor road surfaces such as sand and mud, extending the equipment's service life by more than 30% compared to ordinary models.
🛠️ Applicable scenarios: Covering all outdoor heavy lifting fields
✅ Precast component factories: Transfer and stacking of precast box girders and pipe segments
✅ Ports/Storage yards: Loading, unloading and stacking of containers, steel, and ore
✅ Wind power/photovoltaic bases: Installation and positioning of wind turbine towers and photovoltaic brackets
✅ Bridge/infrastructure construction sites: Lifting operations of large steel structures and concrete modules
✅ Mines/material yards: Loading, unloading and transfer of heavy ore and building materials
Whether dealing with strong coastal winds or adapting to long-distance power supply in remote construction sites, this truss double-girder gantry crane can become the core support for your outdoor lifting operations with its stable performance and flexible control. Parameters | Specifications
Rated Lifting Capacity | 20t~100t (customizable to 125t/160t)
Span | 10m~50m (customizable for larger spans)
Lifting Height | 8m~30m (customizable for extra-high lifting)
Working Class | A5~A7 (suitable for medium to high frequency outdoor operations)
Applicable Environment | -20℃~60℃, outdoor environments including rain, snow, sand, and coastal salt spray
🏗️ Structural Parameters
Main Beam Structure: Truss-type double beam, welded with Q355B high-strength steel
Leg Structure: Truss-type gantry legs, overall hot-dip galvanized + epoxy zinc-rich paint anti-corrosion
Trolley Structure: Truss-type lifting trolley, lightweight design
Crane Wheels: ZG55 cast steel wheels, wear-resistant and pressure-resistant, service life ≥ 5 years
Buffering Device: Polyurethane buffer (200mm stroke) + anti-collision buffer pad
Overall Weight: Approximately 35t~120t (customized according to lifting capacity and span)
⚡ Power and Power Supply System
Power Supply Method: Cable reel power supply (automatic retraction and extension)
Power Supply Voltage: 380V 50Hz three-phase AC
Cable Reel Specifications: Reel diameter φ600mm~φ1200mm, suitable for cable cross-section 16mm²~70mm²
Power Supply Distance: 100m~300m (customizable for extra-long distances)
Lifting Motor: YZR series wound rotor motor, power 15kW~75kW
Running Motor: YSE series soft-start motor, power 3kW~11kW
Insulation Class: F
Protection Class: IP54 (suitable for outdoor dusty and humid environments)
🚀 Performance Parameters
Lifting Speed: 3.5m/min~12m/min (dual speed) Variable frequency speed control (optional)
Trolley running speed: 10m/min~30m/min (variable frequency speed control)
Crane running speed: 20m/min~50m/min (variable frequency speed control)
Positioning accuracy: ±20mm (meets the requirements for precise lifting of heavy outdoor workpieces)
Wind resistance: Working state wind resistance ≤ 8 levels, non-working state wind resistance ≤ 12 levels (requires anchoring device)
Climbing ability: ≤3‰ (gentle slope climbing on outdoor tracks)
Continuous working time: 24 hours of uninterrupted operation (continuous power supply from cable reel)
🛡️ Safety Configuration
Lifting protection: Overload limiter + lifting height limiter + lowering depth limiter
Operation protection: Travel limit switch + ultimate limit switch + windproof rail clamp / anchoring device
Electrical protection: Leakage protector + overcurrent/overvoltage protection + cable anti-break device
Warning device: Walking sound and light alarm + fault alarm indicator light + anemometer (optional)
Emergency protection: Remote emergency stop + ground emergency stop button + power-off braking system
🎮 Control System
Control method: Industrial-grade wireless remote control + ground linkage control console (dual backup)
Remote control distance: 100m~150m (penetrates complex outdoor environments)
Remote control functions: Lifting/lowering, trolley traverse, crane travel, emergency stop, dual-speed switching
Control system: PLC programmable control (with fault diagnosis and operation data recording functions)