35 Ton Double Girder Overhead Crane with Double Hook, 12m Span
$50000.00 1 set
Qingdao Shanghai
L/C T/T
New
QD
CE, ISO9001:2000
Yongtong
General manufacturing
Key Features
Double Girder Design: Provides superior rigidity and stability compared to single girder cranes, supporting lifting capacities of 3–63 tons (common models: 5–50 tons) and spans up to 50 meters.
Dual-Hook System: Equipped with a main and auxiliary hook (e.g., 25/5t, 32/10t) for simultaneous handling of primary and secondary loads.
Electric Hoist Integration: Uses CD/MD-type hoists with dual-speed lifting (e.g., 0.8/8 m/min) for precision in material handling.
Safety Mechanisms: Includes overload protection, limit switches, emergency stop buttons, and polyurethane buffers.
Control Options: Operated via pendant pushbutton, remote control, or cabin control for flexibility.
Technical Specifications
| Parameter | Range/Details |
|---|---|
| Lifting Capacity | 3–63 tons (standard: 5–50t) |
| Span | 5–50 meters (customizable) |
| Lifting Height | 6–60 meters (adjustable) |
| Lifting Speed | 0.33–8 m/min (dual-speed options) |
| Trolley Speed | 10–30 m/min (standard); up to 63 m/min |
| Crane Travel Speed | 20–110 m/min (variable frequency drives optional) |
| Work Duty Class | A3–A5 (ISO 4301-1) |
| Power Supply | 380V, 50Hz, 3-phase |
| Temperature Range | -20°C to +60°C |
| Protection Grade | IP54–IP65 (dust/water-resistant) |
Applications
Steel Mills: Handling coils, molds, and heavy machinery.
Ports & Warehouses: Loading/unloading containers and bulk cargo.
Manufacturing: Assembly lines for automotive, machinery, or electronics.
Mining & Construction: Transporting raw materials and equipment.
Power Plants: Maintenance of turbines and generators.
Advantages
Durability: Constructed with high-quality carbon steel (Q235B/Q345B) and forged hooks for longevity.
Space Efficiency: Compact trolley design maximizes vertical workspace.
Energy Savings: Variable frequency drives (VFDs) reduce power consumption and enable smooth acceleration.
Customization: Configurable spans, speeds, and lifting heights to match specific workflows.
Safety Compliance: Meets FEM, DIN, and ISO standards with overload alarms and fail-safe brakes.
Double Hook Functionality
Main Hook: Handles primary loads (e.g., 25t main hook).
Auxiliary Hook: Manages lighter/secondary tasks (e.g., 5t auxiliary hook).
Example Configuration: A 32/5t model lifts 32 tons with the main hook and 5 tons with the auxiliary hook, ideal for multi-task operations like balancing long beams or handling mixed loads.
Selection and maintenance suggestions
Key points of selection
Load matching: Select tonnage (such as 16/3 tons or 32/10 tons) according to the needs of the main and auxiliary hooks to avoid overload of the auxiliary hooks.
Span and plant adaptation: Span > 22 meters preferably H-beam, enhance the torsional performance.
Safety and maintenance
Regular inspection: monthly check brake wear (braking torque ≥1.5 times rated load), wire rope breakage rate ≤10%.
Lubrication management: gear box lubricating oil change every 3 months (ISO VG220), track bolts tighten every 6 months
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