Products
GJM40.5t Double Girder Gantry Crane with Two Hoists Exported to Mongolia
Double Girder Gantry Crane (with Two Hoists) – Equipment Overview
The GJM40.5t double girder gantry crane is equipped with two hoists and is a heavy duty handling unit custom designed for a landlocked container hub in Mongolia. The crane has a rated lifting capacity of 40.5 tonnes (under the spreader), a span of 37 m, and a lifting height of 21 m (supporting stacking of five layers and six tiers). It is fitted with an ISO compliant container spreader compatible with 20 ft, 40 ft, and 45 ft containers. The complete machine holds CE certification and complies with the GB/T 3811 2008 crane design standard, with a design service life of 20 years.
Container Yard Operations
Task: Handling heavy 40 ft containers (each weighing up to 38 t).
Result: The full variable frequency drive system (no load speed 80 m/min, full load speed 36 m/min), together with a hydraulic anti swing device, increases single container handling efficiency by 40% and reduces energy consumption by 18%.
Intermodal Support
Task: Connecting railway freight stations with road transport (daily throughput of 1,200 TEU).
Result: ±5° spreader rotation accommodates different trailer orientations; 270° trolley rotation covers multiple rail tracks, increasing yard utilization by 35%.
Extreme Climate Adaptation
Task: Continuous operation in a low temperature environment of 30 °C.
Result: Low temperature grease and fully sealed electrical enclosures reduce the equipment failure rate to below 0.5%, which is 60% lower than that of conventional cranes.
Double Girder Gantry Crane with Two Hoists – Technical Innovations
Intelligent Monitoring System
The CMS (Condition Monitoring System) monitors 12 key parameters in real time, including crane and trolley operation, and supports remote fault diagnosis.
Equipped with a 3D laser anti collision system; the operational safety distance accuracy reaches ±10 cm.
Structural Optimisation
The main girder is a Q345D high strength welded box steel structure with a dead weight coefficient of only 1.15.
A flexible leg beam hinge design (±15° adaptive tilt) accommodates complex foundation conditions.
Eco Friendly Energy Saving Features
An energy recovery system captures potential energy during lowering, saving 20% on electricity.
Low noise design (operating noise ≤75 dB) complies with ISO 11202.
Eco Friendly Energy Saving Features
An energy recovery system captures potential energy during lowering, saving 20% on electricity.
Low noise design (operating noise ≤75 dB) complies with ISO 11202.