Electric Single Girder Overhead Crane apply to working-level A5, working environment temperature -25 ℃ ~ + 40 ℃, relative humidity ≤85% of non-flammable, explosive hazardous and corrosive media under the environmental conditions of work.
Overhead Crane mainly consists of the main components of the bridge, hoist, traveling mechanism, electrical equipment and other components. Crane hoisting two-speed (ratio of 6: 1), Long travelling movement adopts frequency control (speed ratio 1:10). Crane power lines are arranged in the main slide end of the main beam, using the safety sliding line.
◆Customized design base on GB/ISO/FEM/DIN/BS standards.
◆High efficient, with the work class: ISOA3-A5, FEM 1m-2m.
◆The frequency-converter can be installed.
◆Remote control, pendant control can be equipped.
◆Inspection standard for load test: Dynamic/ Static load test 1.1 times/1.25 times.
◆Light self- weight & Small space use.
◆When hoist is located at the mid-span, loaded with natural frequency of the main beam is less than 2Hz.
◆Main beam used European FEM standard off-track box beam.
◆High quality carbon steel Q235B or Q345B（16Mn）.
◆Use submerged arc welding in main welding line.
◆Reducer gears and gear shaft using 42CrNiMo materials.
◆Wire rope breaking strength of not less than 2160N / mm2, the safety factor of not less than 5.
◆Motors imported from Germany, electrical connection sustained rate of not less than 60%, insulation class F, protection class IP54.
◆Maintenance-free electromagnetic disc brakes to be used
◆Crane end beam adopt rectangular tube structure to avoid the deformation generated by welding.
◆Traveling mechanism using a motor, gear box, brake “Three-in-one " drive mode.
◆Motor protection not less than IP54, electrical connection sustained rate of not less than 40%.
◆High protection class IP54.
◆Using Frequency converter device.
◆Module control speed, micro-speed and double speed are available.
◆Safety smooth slide wire, high conductivity, small pressure drop.
◆Have special access PE wire, all electrical devices dedicated line and PE line phase, and a ground network.
Single Girder Overhead Crane Main Specification