China Capacity 200 to 500 Ton Double Girder Gantry Crane

Capacity 200 to 500 Ton Double Girder Gantry Crane

Part 1 Descriptations:

MG Gantry cranes are all types of cranes which lift objects by an open winch which is fitted in a trolley and can move horizontally on a rail or pair of rails fitted under a beam. Gantry cranes are an excellent alternative to permanent indoor overhead cranes, which minimal investment in any new building by eliminating the need for increased foundational and structural considerations. In addition, they can be disassembled and moved to a new location easily.
We designed MG Gantry cranes with different capacities and spans that will meet your requirements.
Our designed Gantry Crane is with heavy loads up to 700t and spans can be over 50 meters. For fabrication and freight-transfer applications, it can move loads rapidly and smoothly.
Double Girder Gantry cranes are widely used for moving objects within shipyards, ports, rail yards, factories, and warehouses.

Part 2: Detailed Configuration

Mechanical:
-Double main girder, welded box beam
-Material: carbon steel with high quality of Q235B or Q345B
-The main girder is connected by strength bolt.
-Weld joint tested by X ray or ultrasonic examination;
-Forged Crane wheels
-Trolley with Compact structure, small size and light;
-Lifting mechanism is rigid open winch trolley
-Compacted gear motor driving, harden gear, hydraulic brake
-Excellent driving properties, smoothly moving
-Shot-blasting Sa2.5 for complete girder after welding, stress release
-Epoxy zinc rich high quality painting, 2x2 with 140μm
Electrical
-Conductor power supply
-All hoist and crane movements are independent and can be run simultaneously.
-Protection degree IP55
-The components are positioned in a maintenance friendly way, and the whole layout provides with good protection
-Festoon cables are suspended on cable saddles, fixed to cable trolleys, running in a galvanized C-track.
Protective Features
- Overload Limiter, Limit Switch (Lifting and Traveling), Interlock protection device, Buffer, Rail clear plate, Protective cover, Bus Bar preventer plate, Anti-collision device, Light alarm devices Main isolating switch, Emergency stop system, Motor overload protection
-equipped with rainproof devices for lifting mechanism, electrical control box.Part 3: Sketch & Technical Data

MG Double Girder Gantry CraneCapacity(t)5t~700t as per requirementsSpan(m)7m~60m, or other special spanLifting Height(m)6m~24m or other specail heightLifting Speed(m/min)single lifting speed or stepless speed(designed as per requirements)Trolley Speed(m/min)single lifting speed or stepless speed(designed as per requirements)Bridge Speed(m/min)single lifting speed or stepless speed(designed as per requirements)Working DutyA5~A8 depends on applicationPower supply380V,50Hz or other




Crane Inquiry Data SheetNos. Crane required
CapacityMain Hook
Aux. hook
Span of the Crane
Required Hook LiftMain Hook
Aux. hook
Length of Runway
Working Ambient



Working DutyUsing Frequency
Application



Power SupplyVolts HzPhaseControl Methodcabin
floor
wireless
other

Lifting capacityMaint200320400500Aux32503080Spanm22181828.5Lifting heightMainH112131833/10AuxH213142034Max. wheel load419580400480Installed power190260275350SpeedMain hoistingm/min0.2-1.80.14-1.40.15-1.50.15-1.5Aux hoisting67.560.6-6Crab travelling207101.36-13.6Trolley travelling1617181.6-16Main dimensionsB1mm9800105001100016000B215000158002010024600L12500300030004500L23000350045003500Working systemMediumPower source3-Phase A.C. 380V 50Hz