The harm of unauthorized modification of single beam crane and installation of electric hoist

Some time ago, a customer said that he would build a 2-ton single-beam crane by himself, and then build an electric hoist by himself. Let's not talk about the feasibility of this customer's idea, let's talk about the hazards of privately rebuilding a single beam crane.

Single-beam cranes of more than 3 tons belong to the category of special equipment and require qualified manufacturers to produce them. The consequences of cranes produced by unqualified manufacturers are very serious. Although one LD single-beam crane can be installed with two electric hoists, if the user installs them privately, there will be the following potential hazards:

1. It may cause overload and cause major accidents

A single beam crane is equipped with an electric hoist and becomes a double electric hoist crane. The total lifting capacity of the two electric hoists may be greater than the rated lifting capacity of the crane. This is a dangerous operation and may cause the main The beam was bent and deformed, causing the crane to fall.

2. Two electric hoists may collide

Generally, double electric hoist cranes will install safety devices to prevent collisions between the electric hoists during production. If the company installs them privately, there may be no such devices. When the electric hoists are running, there is a danger of collision between the two. Cause a production accident.

3. Reduced safety performance

The control system used by an electric hoist crane cannot meet the requirements of the double electric hoist crane, which seriously reduces the safety performance of the crane. If the operation is careless, various accidents can easily cause damage to the equipment and even cause personal injury.

Our factory reminds everyone: If the single-beam crane needs to be modified, please find a qualified manufacturer (such as our factory) for modification.