Specifications: JG gear-device series 1)Double limit switch device-Avoid impacting the top limit ,carry out soft stop. Very convenient in adjusting location ,and the error is no more than 1.50CM with its compound driving structure2)Gear-driving-Stable drive,low noise,high strength, high security ,convenient installation and operation.3)Brake device-Adopt strengthened fibre .High frictionfactor ,low noise,low abrasion and stable braking performance under high speed running and heavy load.4)Controlling part-Adopt alternating current contactor. Good in energy saving ,no shake occurs at the contact terminal, without magnetic leakage, without temperature increment, noise-free and maintenance-free .Suitable for frequent start-up and control. Elevating weight range: 250kg - 500kg5) Guarantee period- 5 yearsMain Technical Parameter:ModelElevating weightElevating speedRated powerRated currentElevating heightMotor running speedNet weightJG-250A250KG6cm/s150w1.8A5m960rpm13.5kgJG-350A350KG4.3cm/s180w2.1A5m960rpm17.2kgJG-500A500KG6.2cm/s370w2.6A7m960rpm17.5kg