Parameters:ModelQJJ20-4B  QJJ30-6BQJJ30-4B  QJJ45-6BQJJ40-4B  QJJ60-6BCapacity per unit(t)101520Lifting    height(mm)170017001700Motor    power(kw)2.233Output    rotation speed(r/min)505050Ascending speed(m/min)600600600External    dimensions(mm)4600X1080X26504600X1080X26504780X1080X2960Weight(t)2.12.83.6Input voltage(v)380380380         10/15t unit size drawing            20t unit size drawing              control box            supporting jack(optional)Feature:Inside column design  system—more convenient and lightPlatform can be  choose-suitable for more kinds of vehicles Mechanical motor driven  mode, electrical control box—easy to control, safety and convenienceAuxiliary circuits inside  each column and external limit switch for low voltage.Electric connecting  cables between the columns equipped with special connectors.Upper and lower limit  single push button switch.Personalized  design,reasonable aestheticDouble nuts,Supporting  post available ,more safety24V power control voltageAll  posts can lift together,or single4/6/8 columns can be combined  for different vehicles          platform (optional)main working theory: the electric  motor drive the screw,and the screw drive the nut ,the nut connect with the  lifting beam ,the lifting beam lift the vehicle up side down together with the  nuts.>You ask & i answerY:What about the protection device? I:automatic safety lock      Y:Do your company have the limit switch device? I: Yes,we have the  traveling limit switch , current overload protection system to make sure the safety. Y:About the warranty time? I:Our warranty time is one yearY:What is the MOQ? I:One set     Y:How about the delivery time? I:About 30 days  after receive the depositY:What is the payment terms? I:30%deposit by  T/T,then 70% balance after check the copy of B/LY:Do your company offer  install service?I:Yes,we can offer the  install service ,but the cost will be paid by your company.In normal cases,the  machine be installed by our customers,we will offer the install manual and  video for installation. Y:What about the after-sale service? I:Our company can offer  free parts within one year and provide the technical support all  life.Y:Can your company can  offer CE and ISO certification?I:Yes,we have passed CE and ISO quality management system certificate ,and all of our products are 100% inspected before Shipment,so  you can retail or use directly.If you can't find the information you need ,please contact me i will send you the information to you as soon as possible,thanks and regards.Aofu Industrial has been focused on beam style mechanical mobile two post car lifts designing and manufacturing since 1978, which is well-known as one of the leading manufacturers and suppliers of various quality lifts. Equipped with a professional factory, we can offer you customized service at cheap price. Welcome to buy low price beam style mechanical mobile two post car lifts with us and check the pricelist and quotation with us.