PROJECT NAME: Single-girder bridge crane JMD 5 t / 7,14 m

INVESTOR: Uniweld strojevi Ltd.

LOCATION: Kamanje

YEAR OF PRODUCTION: 2013.

TECHNICAL CHARACTERISTICS:

• maximum crane capacity: 5 t
• bridge span: 7,14 m
• lifting height: 3,4 m
• load lifting speed (frequency control): 3,3/0,6 (0,3) m/min
• suspensioned hoist travel speed (frequency control): 8/2,4 m/min
• bridge travel speed (frequency control): 30/8 m/min

TECHNICAL DESCRIPTION:

For the needs of the investor, the company Uniweld strojevi Ltd., a project of a single-girder bridge crane was made, and it was manufactured and installed. The maximum load capacity of the crane is 5 t, and the span of the bridge is 7,14 m, while the lifting height is 3,4 m. The crane is mounted on the crane tracks in the lobby of the paint shop inside the production plant of the investor.

All working movements of the crane: driving the bridge, suspended carts and lifting/lowering the load, are electrically driven, and are controlled via frequency converters.

The crane is operated from the floor using a radio remote control button.

The single-girder bridge crane consists of:

• steel structure, consisting of:
  • main girder derived from HEA profile,
  • end carriagesmade of NPU profiles,
• electric driving hoist,
• electric installations.

The electrical equipment of the crane consists of:

• electric motor of the lifting mechanism with brake,
• electric motor with brake for driving a hoist,
• two electric motors with brakes for driving the bridge,
• control cabinet,
• limit switches for switching off the lifting/lowering drive, the hoist drive and the bridge drive,
• radio remote control button,
• main switches, and
• power and control cables within the crane itself.

At the ends of the crane tracks, steel bumpers are placed as safety against the crane falling off the tracks, and rubber bumpers are against stiff impact into the obstacle. In the same way, the movement of the suspension trolleys along the main girder of the crane is limited.