Double Girder Type EOT Cranes

R- Cranes, Electric overhead travelling cranes are designed & manufactured accordance with IS 807 &. IS 3177. The Mechanical part of the Crane is manufactured Accordance with IS 3177 code of practice of design, manufacturing, erection & testing of EOT Cranes. The Structural part of the crane is manufactured accordance with IS 807 code of practice & Design of EOT Cranes. In the design of components, an adequate factor of safety as per relevant code is allowed Impact, Fatigue, Wear & Stress concentration factor are taken whenever applicable. All drives are designed to give sound and efficient performance.

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 stresses creating due to vertical & lateral forces with impact.

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

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

The motors used are specially crane duty suitable for frequent starting. Reversing and braking in accordance with IS 325. All trolley and drive motors have suitable AC/DC/ brakes as STD equipments with smooth running properties.

The hoisting machinery is designed with IS 3938 in modular construction, which simplifies repair and maintenance. R-Cranes Std. wire rope hoist & Customized Crab specially design for light & heavy duty industries

The wheels of the trolley and the end carriages shall be forged steel confirming to IS 2707, GR II, Duly spin hardened to 300 BHN. Materials, double flange straight thread type fitted with antifriction bearings mounted on L type bearing housing assembly for the ease of the maintenance.

• Latest crane control solution AC variable speed drives.
• Control torque.
• Allow accurate positioning.
• Different operating speed control.
• Smoother operation.
• Reduces the stress on electrical equipment.
• Eliminate micro speed motor, micro gear box & additional brake.
• Directly save on equipments cost with better performance.
• Eliminates the need for magnetic reversing contactors.
• Reduces the wearable components in panel.
• Reduces long term maintenance cost.

Following features shall be supplied on request

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