Tower Crane Dxz Slewing Limit Switch for Safe Load Indicator

Tower Crane Spare Parts DXZ Hoist Trolley Load Limit Switch
Dxz Slewing Limit Switch Tower Crane Spare PartsSpecifications :The products are according to the followlng technical parametersRaw material control:
1.The steel material selected 100 % comes from our natlonal large-scalesteel corporations .
2.The critical materials that steel,welding material etc are all examedby chemical detection , then They are allowed into workshop for batchproduction.
3.Strictly conforms to drawing requirements, we make the products with16 Manganese,40 Chromium and 45#steel etc .
4,Every parts of our products that pins ,axles,sleeves etc are strictlyobey quenching and tempering procedures .
5,Every parts of our products strictly conforms to the procedurerequirements : mill ,plane, polish, press ,test etc in turn.
6,As for have finished products ,we perform the requirements of theISO9001 Quality System and national standard strictly.General introduction of tower crane main mechanisms .
( 1 ) Main raw material of tower crane's body and tower-cap are 16Manganese,Q345B Steels , which are selected from heavy wall seamlesssteel pipe manufactured by Ansteel Steel Group.
( 2 ) Hoisting mechanism " Jiuhe " and " Yibin " brand are provided bynational-level manufacturer. To adopt eddy current brake,four-speedwinding hoist.
( 3 ) Slewing bearing : appointed corporation of Fangyuan SlewingBearing Factory .
( 4 ) Slewing mechanism : equipped with four-speed winding motor and "Shengjian " brand, the quality is the same with exporting supplier
( 5 ) Luffing mechanism is double-speed cone rotor motor, so It'sneedn't refill gear lubricant or maintenance , and double-planetaryreducer.
( 6 ) Electrical apparatus system : The main contactor is fromSiemens. The operating system is a high-quality product (integrated pellet ) ,which provided by Sanmen Sangang ,and isdurable in use.
( 7 ) Welding : welding is carbon-dioxide shielded and automaticsubmerged arc welding. Feature: advanced technology,strongconnectivity.
( 8 ) Driver cab : With arc space capsule , toughened glass , widefield of vision , clear and safe ,auto wiper, air conditioner.
( 9 ) Basic mast section : square strengthened steel, repeatedlyapplicable, convenient in tower crane displacement. But lower in cost.
( 10 ) Mast section : 3 meters in length , strengthened bolted with10.9 grade high-strength bolt . each mast section with 12 bolts .(common manufacturers adopts 8.8 grade).DXZ series multi-functional turning angle type travel limiter is akind of new safety protection drvice disigned and produced
domestically after the introduction of products from France,applicable to space three-cooodinate bilateral control,control of any position, turning angle and travel and analog sensory control, widely used in tower cranes, port cranes,various windlasses and other construction machinery,as well as control circuit of similar machinery.
The product has avariety of functions, such as small size, large transmission ratio, high accuracy, convenient installation and debugging versatility and so on, having been applied more and more widely.
StandardRatioDrive rate No.123456789Drive rate1:131:171:461:601:781:2101:2741:6601:960Nonstandard ratio
Ratio1:201:261:301:351:871:1051:1351:1401:1601:1881:2471:3301:3601:4531:4801:660
DXZ limit switch use for tower crane / crane switch /amplitute sensor1.Small size2.Large transmission ratio3.High accuracy4.Convenient installation and debugging versatility and so onITEM:DXZDataHousing AluminumRating load10A/250VACRated VoltageAC 220/380VRated Current6~10AOperating speed1mm-50cm/sOperating frequencyMechanical 120times/minElectrical30times/minInsulation resistance100MΩ(Above)DC500VContact resistance25MΩ(intial value)Withstand voltageNon-connection wire1000VACEvery terminal1500VACVibrationMisoperation10-55Hz Amplitude 1.5mmImpactDurable1000m/s²Misoperation300m/s²LifeElectrical100,000aboveMechanical1,000,000aboveProtection degreeIP65Operation temperature"-40'C~55'COperating humidity≤ 90%RHRepeatable Positioning Accuracy Angle Error of Memory Cam ≤0.005rad (0.3°)