PROJECT NAME: Single-girder bridge crane JMD 5 t / 6 m

INVESTOR: IRT Hidro Ltd.

LOCATION: WR Vukovar

YEAR OF PRODUCTION: 2017.

TECHNICAL CHARACTERISTICS:

• maximum crane capacity: 5 t
• bridge span: 6 m
• lifting height: 9,3 m
• load lifting speed (frequency reg.): 3,3/0,3 m/min
• hoist travel speed: 10 m/min
• bridge travel speed: 9 m/min

TECHNICAL DESCRIPTION:

For the needs of the investor, the company IRT Hidro 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 6 m, while the lifting height is 9,3 m. The crane is mounted on the crane tracks in WR Vukovar in Vukovar.

All working movements of the crane: driving the bridge, suspended trolley and lifting/lowering the load, are electrically driven, where the lifting/lowering drive is controlled in two speeds via a frequency converter.

The crane is operated from the floor by means of a suspended control button with reduced voltage.

A single-girder bridge crane consists of:

• steel structure, consisting of:
  • main girder derived from HEB profile,
  • end carriages made of rectangular steel pipe,
• 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,
• suspended control button with reduced voltage,
• main switches, and
• power and control cables within the crane itself.

At the ends of the crane tracks, steel bumpers were installed as a safety against the crane falling off the tracks. In the same way, the movement of the driving hoist along the main girder is limited.