Double Girder EOT Crane

Double Girder EOT Crane 

Description:

A Double Girder EOT Crane is a robust, heavy-duty material handling system that uses two parallel bridge girders supported on end carriages and travels on a runway system installed on building structures. A trolley with a hoisting mechanism runs on top of these girders to lift, lower, and move heavy loads across a factory or industrial premises.

These cranes are suitable for high-capacity lifting applications, ranging from 5 tons to 150+ tons, and are a mainstay in industries where bulk material movement and precision handling are required.

How It’s Made:

1. Bridge Girders Fabrication:

   • Two main girders are built using IS-grade rolled steel sections or welded box-type beams, stress-relieved and tested for structural integrity.

2. End Carriages:

   • Heavy-duty fabricated steel structures with precision-mounted wheels (double-flanged forged or cast steel) and drive mechanisms.

3. Crab Trolley Assembly:

   • A self-contained unit housing the hoist, gearboxes, brakes, motors, and control panel. Runs on rails mounted on the two girders.

4. Lifting Mechanism:

   • Uses electric wire rope hoist or winch system, powered by squirrel cage or slip ring motors, with fail-safe brakes and limit switches.

5. Drive Mechanism:

   • Equipped with long travel (LT) and cross travel (CT) motors, geared for controlled and smooth movement.

6. Control System:

   • Operated via pendant push-button station, radio remote control, or operator cabin. Speed control via VFD (Variable Frequency Drive).

7. Power Supply:

   • Through shrouded DSL busbar system, cable carrier, or festoon system.

Where It’s Used:

• Steel Plants & Foundries

• Shipyards & Ports

• Precast Concrete Plants

• Heavy Engineering & Machine Building

• Hydropower & Thermal Plants

• Automotive & Assembly Plants

• Railway Workshops, Metro Rail Depots

Key Features:

• Lifting Capacity: 5 Ton to 150+ Tons

• Span: Up to 40 meters

• Lift Height: Up to 35 meters or customized

• Duty Class: Class II to IV (IS 3177 & IS 807 standards)

• Controls: Pendant / Radio Remote / Cabin

• Brakes: Electromagnetic / Hydraulic Thruster Brakes

• Safety: Overload limiters, anti-collision sensors, brake interlocks

• Power: 3-phase, 50 Hz, 415V standard

Importance:

Double girder EOT cranes are critical in industries that require bulk lifting, precise placement, and long-span material movement. They provide reliable, uninterrupted performance, reducing labor dependency and increasing efficiency in high-load environments.

Advantages:

• Handles Extra Heavy Loads with Stability

• Crab Trolley Allows Higher Hook Height (top-mounted)

• Higher Speeds for Cross & Long Travel

• Customization for Span, Load, & Speed

• Advanced Safety Systems for Operator Protection

• Ease of Maintenance – Modular Design

• Lower Lifecycle Cost for Large-Scale Operations

Significance in Industry:

With increasing demand for automated and high-load material movement, double girder EOT cranes provide the perfect combination of strength, technology, and adaptability. Their dual girder configuration enhances structural strength and hook approach, making them ideal for long-span and high-capacity industrial buildings.

Indicative Price Range (India):

Capacity	Span	Price Range (INR)
5 Ton	10–20 m	₹8 – ₹14 Lakhs
10 Ton	15–25 m	₹12 – ₹20 Lakhs
20 Ton	20–30 m	₹18 – ₹30 Lakhs
50 Ton+	25–40 m	₹35 Lakhs – ₹1 Cr+

FAQs:

Q1. What is the main difference between single and double girder EOT cranes?

A: A double girder crane supports the crab trolley on top of the girders, allowing higher lifting heights and heavier loads compared to single girder cranes

.

Q2. Can the crane be used outdoors?

A: Yes, with IP-rated components, weatherproofing, and gantry adaptation, they can function in open yards or outdoor workshops.

Q3. Is VFD necessary?

A: While not mandatory, VFDs offer smoother starts/stops, energy savings, and protection, making them ideal for modern installations.

Q4. How is safety ensured?

A: Via emergency stop systems, overload relays, brake systems, limit switches, and anti-collision devices.

Q5. What standards apply in India?

A: IS 3177 and IS 807 for design and manufacturing. Clients may also request FEM, DIN, or CE standards for export.

Conclusion:

Double Girder EOT Cranes are the backbone of heavy-duty industrial lifting, offering strength, span, safety, and speed. Gujarat’s crane manufacturers deliver tailored, certified, and cost-effective solutions backed by strong service and AMC support. For any facility with intensive lifting needs, these cranes ensure operational continuity, safety, and investment value.

Contact:-+91 9824434660

Gmail:[email protected]

Website:-https://hindustancranes.com/