Single Girder Overhead Crane

Single Girder Overhead Crane

Design

CRANOIST electric overhead traveling cranes are designed & manufactured accordance with IS 807, IS 3177, code of practice for design, manufacturing, erection, testing of structural part of the crane and IS 3177 code of practice for design of overhead traveling crane. In the design of components adequate factors of safety as per relevant code is allowed impact, fatigue, wear & stress concentration factors are taken whenever applicable. All drives are designed to give sound & efficient performance.

Steel Construction

Structural steel are used in the manufacturing of crane confirming to IS 2062 or equivalent.

Bridge Girder

The bridge girder is fabricated from RSJ / Box type construction in the manufacturing. The maximum deflection of the bridge girder is limited to span / 1000 of the live loads. Bridge girder is designed to sustain stress creating due to vertical & cateral forces with impact.

End Carriages / End Trucks

• End carriages are fabricated from rolled steel section / plate with adequate diaphragms & stiffeners to give a rigid construction. The girders with gusset plates are set on the end carriages joined with bolt in rimmed holes, rubber buffers are provided on both the side of end carriages for abhorring the jerks.
• Twin drive arrangements will be provided for L.T. motions, central drive arrangement also available on request.

Hoisting Machinery

The hoisting machinery / crab is designed with IS 3938 in modular construction which simplifies repair & maintenance consists of a CRANOIST heavy duty industries type std. wire rope hoist.

Controls

• The crane is controlled from pendent push button station is suspended from the one end of bridge at a suitable height from the floor level with stepped down voltage of 110v, 24v.
• Dust proof powder coated sheet - metal housing consists of contactors overload relays fuses, transformers etc.
• Emergency stop button in all cranes to shutting off the power to the main contactors.

Single / Double Girder type Gantry / Goliath Cranes

• Capacity: Single Girder Crane Up to 20 ton.
• Double Girder Crane Up to 100 ton.
• Span: Up to 30 mtrs.
• Long travel speed: Up to 20 mtrs/min.
• Cross travel speed: Up to 15 mtrs/min.

Used for outdoor application: Ship yards, Construction area.

Travel on rails are installed on ground surface.

Cost effective-economical solutions, No need of concrete foundations, Runway beam and columns.

Motors & Brakes

• The motors used are specially crane duty suitable for frequency starting, reversing and braking in accordance with IS 225.
• All trolley and drive motors have suitable AC/DC/brakes as std. equipments with smooth running properties.

Optional Features

Following features shall be supplied on request.

• Micro speed arrangement through frequency inverters / variable frequency drives.
• Cable festooned system or shrouded bus bar system.
• Warning horn.
• Bridge lights.
• Cabin operated through master controller