MHH electric hoist gantry crane (truss type)

MHH electric hoist gantry crane (truss type)

Technical features:

The transmission adopts the new generation three in one system, the electrical appliance adopts the contactless module speed control, and can realize the micro speed and two speed approach frequency conversion function, so that the operation and lifting inching performance are particularly stable. It is equipped with overload alarm, inclined lifting, secondary protection against hook punching, missing item overcurrent and other protection, and the console (handle) adopts 12V voltage to realize the multi-functional protection of the hoist door crane. When the voltage is within 380v+5~-10%, the electric control can be used for "2million" times for a long time.

Selection principle:

Use industry, starting and inching times /1h The practical time per day is h. It must be noted that for light cranes, the starting and inching are gn/0-80 times /1h, gn/2- 40 times /1h, gn/1-15-20 times /h, high temperature of 50 ℃ and harsh environment times /1h ÷ 2.

matters needing attention:

① At the operation site, when the crane stops operation, the user shall lock the crane in time.

② There is no wire above the main switch of the crane. It is strictly prohibited to lift high-temperature molten liquid, flammable, explosive, corrosive, overloaded, dust and other dangerous operations.

③ The total overhang length of the gantry crane is less than 1/3 of the mid span 90% of GN at the outer suspension limit, and the crane can run only when the heavy object is moved into the outrigger. The weight gn of the crane running outside the legs shall be reduced by 10-20%. When the external suspension exceeds 1/3 of the midspan, the GN shall be reduced by sections. Under the above conditions, the heavy objects can only be operated when they are close to the outrigger crane. Small spans should not be run outside the legs.