What is the most suitable specification of elevator counterweight?

What is the most suitable specification of elevator counterweight?

Elevator counterweight This is a common counterweight method, and the counterweight weight is also needed to check the balance coefficient of the elevator. The balance coefficient of elevator is one of the most important parameters in the overall design of traction elevator, and it is also an important parameter related to the safe, reliable, comfortable and energy-saving operation of elevator. As an important elevator function test, the balance coefficient test is included in the acceptance project. The elevator balance coefficient needs to be checked by 20kg cast iron weight "lock weight" (M 1 national standard weight) with an error of 1g standard weight. Common elevator companies are generally equipped with 1 ton to several tons of small cast iron weights.

The special equipment testing institute also needs to use cast iron weights to test the load quality of elevators. Specification: 20KG cast iron lock weight (easy to carry and lift). Secondly, some inspection units will choose 25kg cast iron lock weight.