- MOQ 1 Set(s)
- gantry craneoutdoor crane
- purposelifting objects
1.type and Function mg Series Gantry Cranes are Patent Products Specially Designed for Bridge Construction. Because Bridge Constructions are Characteristic of Little Work Batch, Large Weight, Short Power Supply and Frequent Worksite Changing, Combined with Advantages of Existing Machines At Home and Abroad, Zzhz Designs Gantry Cranes Featuring Simple Structure, Convenient Installation, Easy Operation and Energy Savings. Advantages of the Gantry Crane are as Below: (1) unique Honeycomb Girder First Made By Zzhz Features Light Self Weight, Large Bearing Load and High Wind Resistance (2) mature Pin Connection Mechanism, Stable and Reliable, Fast and Convenient Assembly (it Only Takes Several Minutes to Put a Steel Pin) (3) pipe Support Legs Can Be Disassembled as Single Pieces as Transferring Sites, Quite Convenient to Transport (4) min Power Solves the Problem of Electricity Supply in the Wild. (5) travelling Mechanism Uses Frequency Converter Whose Speed is Multistage and Adjustable, High Alignment Precision and Small Impact On the Complete Machine. 2.main Technical Parameters (1) gantry Crane a. Rated Lifting Capacity: 50t (net Lifting Capacity) b. Span: 30m (two Sides Rail Centre Distance ) c. Lifting Height 9m d. Structure Honeycomb Type Double Girder e. Load Condition Moving Under Rated Load f. Working Level: A3 g. Crane Travelling Speed 0-20m/min h. Trolley Moving Speed 12m/min i. Main Hook Lifting Speed 3m/min j. Applicable Gradient ≤0.5% k. Power Supply 3-phase, A.c, 380v, 50hz l. Power About 95kw m. Total Weight About 63t n. Out Dimension About 34 X 8.5 X 15m (2) auxiliary Hook (10t Electric Hoist) a. Rated Lifting Capacity 10t b. Lifting Speed 7m/min c. Moving Speed 20m/min d. Origin of Electric Hoist Xinxiang, China 3. Installation Steps of Gantry Crane (1) Cranes Match to Assemble Main Girder, Support Legs, Gear Boxes By Mark On the Ground. After Passing Examination, Install Main Longitudinal Girder On the Ground, Firstly Lift the Main Longitudinal Girder in the Certain Place (mark and Distinguish One Side Main Girder and Another Side Girder)and Install Walking Platform (2) Install the Crane Gear Boxes On the Crane Rails, Alignment with Diagonal and Fix the Gear Box. Then Lift One Side Support Leg to Assemble with Wheel Box and Connect Them Firmly with Pins, Then Use Steel Wire Rope and Chain Block to Adjust and Tighten Them and to Fix Them On the Ground Anchor. Install the other Side Support Leg with the Same Way, Make Two Support Legs Stand Vertically On the Ground, Ensure Installation Dimension of Main Girder. (3) Two Truck Cranes At the Same Time Lift One Side Main Girder to Put It On the Support Legs, Adjust It and Use Bolts to Fix the Connection Plate At the Bottom of the Main Girder with that of Support Legs Trimmers. Then Install the other Side Main Girder. Attention: the Truck Crane is Not Allowed to Loose Hook Before the Main Girder is Fixed Tightly. (4) One Truck Crane Lifts Connection Frames, Fix Them Tightly with Bolts (5) One Truck Crane Lifts Trolley and Installs It On the Rail, Adjust It to Make Its Wheel Tread Contact with Rail Plane (6) One Truck Crane Lift Driver’s Cabin, Halfpace, Walking Platform, Handrail and other Accessories to the Certain Position. (7) Install Electrical Facilities, Pave the Electrical Lines, Remove Mooring Rope, Ground Anchor and other Equipments. Then Start a Test Run and Make a Record According to the Demand of the Quality Inspection Department. 4. Main Structure mghz50/10-30-9 Gantry Crane is Mainly Made Up of Main Girder Assembly, Support Legs, Crane Travelling Mechanism, Lifting Trolley, Halfpace Assembly, Cabin and Electrical Control System. (1) Main Girder structure Type: Honeycomb Girder weight: 32t material: Main Structure Member is Q345b(web Plate) max Weight of One Piece：≤5.2t (2) Lifting Trolley a. Trolley Moving Mechanism wheel Number: 2 Pairs/ 4 Wheel Diameter: 300mm Trolley Number: 1 centre Distance of Trolley: 2500mm(same with Centre Distance of Main Girder) wheel Base: 1500mm rail At Each Side: Monorail Drive Mode: Motor Drive safety Device: Anemobiagraph, Limit Stopper, Over-travel Limit Switch and Bumper Block b. Lifting Mechanism structure, Type and Constitute： Travelling Wheel Box, Frame and Winch winch Type: Jmy5t pulley Rate: 10 Max Kn: 6t steel Wire Rope Model: ∮21.5（6 X 37）-1770 c. Steel Wire Rope for Lifting model: ∮21.5（6 X 37）-1770 origin: China d. Auxiliary Hook(10t Electric Hoist) rated Lifting Capacity 10t lifting Speed 7m/min moving Speed 20m/min origin of Electric Hoist Xinxiang, China (3) support Legs structure Type: Pipe Support Legs material: Hot Rolling Seamless Pipe weight: About 10t max Weight of Single Piece: About 5t (4) crane Travelling Mechanism mechanism and Its Model wheels Number: 4 Pairs(8) Wheel Diameter: 400mm Wheel Distance Error: ±6mm trolley Wheel Base：620mm Rail Distance: 30000mm Rail Height Error: ≤10mm drive Mode: Motor Drive two Rails Height Error to the Span Direction: ≤10mm two Rails Centre Distance Error to the Span Direction: ±6mm safety Device: Overtravel-limit Switch, Rail Clamping Device, Bumper Block, Block Rail Board (5) auxiliary Hook (to Meet the Demands of Customers) (6) Electrical Control System a. control Mode: Driver’s Cabin Control b. lighting (enough Lighting Source for Night Work) quantity: 4 One Set Light Source Power: 500w (7) Driver’s Cabin broad Vision, the Driver’s Cabin is Installed Between Auxiliary Support Leg and Main Support Leg below Devices or Systems are Installed in the Driver’s Cabin: voltmeter, Ammeter, Load Limit Device Display Instrument, Anemoclinograph and So On. alarm Device, Sound System, Air Conditioner heat Preservation, Heat Insulation Treatment for Driver’s Cabin (8) Safety Device a. Electrical Safety Device General Power Switch Earth Leakage Protection Device Crane Travelling Emergency Stop Button Crane Travelling Warning Light Lifting Travel Limit（max）, Crane Travel Limit and Trolley Travel Limit Lifting Load Limiter anemoclinograph Lifting Trolley Travel Locking Device Crane Stop Rail Clamping Device b. Electrical System Protection Device Lightning Arrester overload, Overcurrent, Short-circuit Protection, Monitoring Indicator and Interlocking Device overvoltage, Undervoltage Protection; Mechanical and Electric Interlock Mechanism (avoid Misoperation) gantry Crane Sets Up Inclined Staircase, Handrail, Walking Platform and other Safety Auxiliary Facilities to Ensure Convenient Construction and Personnel Safety.
Zhengzhou, Henan province, China 
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