The selection principles of components for screw type hoists

The screw type hoist is widely used in cast iron gates. Due to its simple structure, easy installation, and low price, it has been loved by a large number of users. However, in terms of devices, if not carefully selected, it poses a great threat to the safety of operators. So, how should we choose the components for screw type hoists?

1. If the screw type hoist uses a non AC power supply during use, its alarm can be selected based on the DC power supply voltage used. For example, electric horns, transistor alarms, or those buzzers and other sound devices, as long as they are in the travel switch, choose a 5A rated current touch rod type.

2. In the process of using a screw type hoist, if a steel gate with AC electrical appliances or electric opening and closing is used, we can also choose an electric horn, Changti tube alarm or buzzer in the selection process. However, for the alarm, it is better to determine the power supply based on the rated voltage of the selected alarm.

Whether it is in the selection of components for cast iron gates or screw type hoists for steel gates, we need to pay close attention to them. Only when safety is ensured can we work and use it better.