ER-50eVo . Electron retracts presents the new ER-50eVo. This standard size retract for models up to 77Lb (35kg)weight, is the result of the evolution of the ER-50. 1.New gear motor: The new bigger gear motor, provides more torque with realistic cycle time ( 3-4sec like ER-40). Also, the gear boxes are stronger. 2.More compact design: The ER-50eVo have a new spindle system with internal absorbers mounted between three bearings, more effective and safe. Also it is combined with new software in the control unit. 3.Stronger: the main body, milled from aeronautical aluminium block, has been reinforced in some points. 4.Very easy maintenance: All rotative parts are made in very strong and auto lubricated materials. Change any damaged part, will be very easy. The customer only will need remove four screws to completely disassemble the system.