Description
Product Introduction:
The SJB series Ball Screw Jack produced by Shanghai Dianmai Transmission is formed by ingeniously combining the ball screw with the worm gear and worm reduction device, and it is also called SGB Jack. It is an innovative product in the process of industrial progress, and its design prototype is the SJA series trapezoidal screw lifting device. Due to the large friction coefficient of the trapezoidal screw, when performing lifting or horizontal pushing movements, it cannot withstand rapid and frequent use. Therefore, the box has been modified to enable it to install the ball screw to replace the trapezoidal screw, thereby compensating for the defects of the trapezoidal screw.
The SJB series Ball Screw Jack has a rich variety of models, including SJB10, SJB20, SJB21, SJB22, SJB50, SJB51, SJB80, SJB81, SJB100, SJB101, SJB200, SJB201, SJB300, and so on. Its lifting force ranges from 2.5 to 1000KN, and it will vary according to the differences in speed and stroke. For specific model selection, you can consult Shanghai Dianmai Transmission. It can be seen from the illustration that the SGB series and the SGA series not only have similar appearances, but also have similar assembly forms. The left picture shows the screw up and down lifting type, and the right picture shows the nut up and down lifting type, and it can be selected according to actual usage needs. Up and down lifting is only one of the common installation methods.
When installed horizontally, it can perform horizontal pushing movements. In terms of input power, just like the conventional screw jack, both hand cranking and electric power can be used, and because the friction coefficient of the ball screw is small, the requirement for the motor torque is also correspondingly reduced, which undoubtedly brings more advantages and conveniences to its application.
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