Urja Automations And Hydraulics Industries

PULLING WINCHESPulling winches are mechanical devices designed primarily to pull heavy loads over a level surface or up a slight incline. Unlike hoists, which are built for vertical lifting and holding, pulling winches typically use dynamic braking that offers resistance only while moving. Common Types of Pulling Winches

• Manual/Hand Winches: Often called "come-alongs" or "ratchet pullers," these are portable and hand-operated using a lever or crank. They are ideal for light tasks like small boat trailers or tree straightening.
• Electric Winches: The most common type, powered by a vehicle battery (12V/24V) or industrial AC power. They provide fast, consistent pulling for vehicle recovery and industrial workshops.
• Hydraulic Winches: Best for heavy-duty, continuous operation in marine, forestry, and construction. They offer high torque and are highly resistant to overheating.
• Pneumatic (Air) Winches: Powered by compressed air, these are essential for hazardous environments (like oil rigs or mines) where electric sparks could cause explosions.
• Capstan Winches: Unlike drum winches that store rope on a spool, capstans pass the rope through, allowing for unlimited lengths. They are frequently used for underground cable pulling. 

1 ton to 5 ton An electric hoist is a motorized lifting device that uses electricity to lift, lower, and move heavy loads, reducing manual labor and increasing efficiency in industrial settings like warehouses, factories, and construction sites. It typically consists of an electric motor, gearbox, drum or chain system, and a hook, controlled by a pendant or remote. These hoists can operate as standalone units or as part of larger systems, like cranes, using either wire rope or chains for lifting.  Key Components & How It Works:

• Motor & Gearbox: Converts electrical energy into mechanical force. 
• Lifting Mechanism: A wire rope or chain wraps around a drum (for rope hoists) or engages a sprocket (for chain hoists). 
• Control: An operator uses buttons or a remote to control vertical movement (lift/lower) and sometimes horizontal travel via a trolley. 
• Trolley: A wheeled mechanism that moves the hoist along a beam (like on an overhead crane). 

Types of Electric Hoists:

• Electric Wire Rope Hoists: Use wire rope, ideal for heavy lifting and longer distances. 
• Electric Chain Hoists: Use a chain, often better for shorter lifts and precise positioning. 

Common Applications:

• Manufacturing & Assembly Lines
• Warehousing & Logistics
• Construction Sites
• Automotive Garages (e.g., engine lifts)
• Maintenance (e.g., lowering chandeliers) 

An electric hoist is a motorized lifting device that uses electricity to lift, lower, and move heavy loads, reducing manual labor and increasing efficiency in industrial settings like warehouses, factories, and construction sites. It typically consists of an electric motor, gearbox, drum or chain system, and a hook, controlled by a pendant or remote. These hoists can operate as standalone units or as part of larger systems, like cranes, using either wire rope or chains for lifting.  Key Components & How It Works:

• Motor & Gearbox: Converts electrical energy into mechanical force. 
• Lifting Mechanism: A wire rope or chain wraps around a drum (for rope hoists) or engages a sprocket (for chain hoists). 
• Control: An operator uses buttons or a remote to control vertical movement (lift/lower) and sometimes horizontal travel via a trolley. 
• Trolley: A wheeled mechanism that moves the hoist along a beam (like on an overhead crane). 

Types of Electric Hoists:

• Electric Wire Rope Hoists: Use wire rope, ideal for heavy lifting and longer distances. 
• Electric Chain Hoists: Use a chain, often better for shorter lifts and precise positioning. 

Common Applications:

• Manufacturing & Assembly Lines
• Warehousing & Logistics
• Construction Sites
• Automotive Garages (e.g., engine lifts)
• Maintenance (e.g., lowering chandeliers) 

An Underslung EOT (Electric Overhead Traveling) Crane, also known as an underhung or suspension crane, is a specialized lifting system designed for facilities with limited headroom or where floor space must remain completely clear of supporting columns. Unlike standard top-running cranes that sit on top of runway beams, these cranes are suspended from the bottom flange of runway tracks, which are typically attached directly to the building's roof structure or rafters. Key Features & Design

• Mounting: Suspended from the ceiling or roof rafters, eliminating the need for floor-mounted gantry columns.
• Configurations: Available in both Single Girder (most common for light-to-medium duty) and Double Girder (for increased stability and higher capacity).
• Capacity: Generally used for lighter loads, typically ranging from 0.5 to 10 tons, though some specialized models can reach up to 40 tons.
• Maneuverability: Excellent for navigating tight or complex workshop layouts. Some designs allow for cantilevers (lateral overhangs) so the hoist can travel beyond the runway tracks. 

Advantages vs. Standard EOT Cranes

• Space Saving: Ideal for low-headroom areas; they maximize the available vertical lifting distance (hook height).
• Lower Infrastructure Costs: Because they don't require dedicated support columns, they are often more cost-effective to install in existing buildings.
• Flexible Layouts: Can be designed to transfer loads between different crane systems or even move along curved tracks. 

Common Applications

• Manufacturing & Assembly: Precise movement of parts in production lines.
• Warehousing: Efficiently moving goods without obstructing floor-level vehicles like forklifts.
• Maintenance Facilities: Lifting heavy machinery components in cramped service bays. 

An electric wire rope hoist is a motor-powered machine that uses a high-strength steel wire rope, wound around a grooved drum, to lift, lower, and precisely position heavy loads in industrial settings, featuring safety mechanisms like brakes and limit switches for efficient material handling, with options for trolleys for horizontal movement. It's essentially the core lifting mechanism for cranes, known for handling heavier weights and longer lifts than chain hoists, with components including a motor, gearbox, drum, rope, and hook. Core Components

• Motor: Provides the power to drive the lifting mechanism.
• Gearbox: Transmits motor torque to the drum, reducing speed and increasing force.
• Rope Drum: A grooved cylinder that winds and unwinds the wire rope.
• Wire Rope: A durable steel rope that connects to the load.
• Hook Block: Attaches to the load, often with guarded sheaves.
• Brake System: Holds the load securely when the motor stops.
• Control System: Pendant or wireless control for precise operation, often with low-voltage systems for safety.
• Trolley (Optional): Allows horizontal travel along a beam for precise positioning. 

How It Works

1. The electric motor powers the gearbox.
2. The gearbox rotates the hoist drum, causing the wire rope to wind or unwind.
3. As the rope winds, it lifts the hook block, raising the attached load.
4. Limit switches prevent over-hoisting or over-lowering. 

Key Features & Applications

• Heavy-Duty: Handles significant loads, ideal for manufacturing, construction, and foundries.
• Precision: Offers smooth operation and precise load placement, sometimes with VFDs (Variable Frequency Drives) for multiple speeds.
• Safety: Incorporates interlocked controls, robust braking, and overload protection.
• Versatility: Can be fixed or mounted on a trolley for movement on EOT (Electric Overhead Traveling) cranes. 

An EOT Crane Crab Trolley is the essential, self-contained unit on an EOT crane (Electric Overhead Traveling crane) that houses the hoist (lifting motor & mechanism) and travels across the crane's bridge, providing both vertical lift and horizontal movement (cross-travel) to precisely position heavy loads in industrial settings like workshops, power plants, and steel mills. Key Components & Function:

• Hoist & Motor: Lifts and lowers the load.
• Wheeled Assembly (Crab): Moves along the main girders of the EOT crane.
• Cross-Travel Drive: Powers the trolley's movement across the bridge.
• Structure: A robust, compact unit designed for heavy-duty operation, often used in double girder cranes for high capacity. 

Purpose:

• Precise Load Positioning: Allows for accurate placement of materials.
• Versatility: Combines lifting and horizontal travel in one unit. 

Where Used:

• Heavy engineering industries
• Steel plants
• Workshops
• Power plants 

URJA MAKE. 

EOT (Electric Overhead Traveling) crane specifications cover capacity (typically 1–500 tons), span (3–60+ m), lift height, duty class (M3-M8), and speed. Key components include steel girders (IS:2062), wire rope/chain hoists, motors (IE2/IE3), brakes, and safety features like overload protection. These cranes are designed for indoor/outdoor use, ambient temperatures up to , and comply with standards like IS:3177 or FEM. Technical Specifications

• Capacity (SWL): 1 Ton to 500 Tons.
• Span (Center to Center): 3 meters to 60+ meters.
• Lifting Height: 3 meters to 300 meters.
• Duty Class (IS/FEM): Class II/III, M3-M8 (Light to Heavy duty).
• Speed (Lift/CT/LT): Variable (VFD) or fixed; e.g., 5-ton lifting speed $\sim$8-11.5 m/min, Cross Travel (CT) 20-30 m/min.
• Power Supply: 415V, 3 Phase, 50Hz AC.\Mechanical & Electrical Features

• Structure: Single girder (up to 20t) or Double girder (higher capacity).
• Hoisting Mechanism: Electric Wire Rope Hoist or Crab.
• Motors: Squirrel Cage Induction Motors, TEFC, F-Class insulation, IP55 protection.
• Brakes: Electromagnetic or Electro-hydraulic thruster brakes for hoist, CT, and LT.
• Controls: Pendant station, cabin control, or wireless radio remote.Safety & Standards

• Standards: IS:3177, IS:807, IS:2062, FEM.
• Safety Devices: Overload limiter, hoisting limit switches, CT/LT limit switches, emergency stop button. 5-Ton EOT Crane Typical Spec 

• Capacity: 5 Ton.
• Span: 10.5m - 31.5m.
• Lifting Height: 6m - 30m.
• Mechanism: M5 (Moderate duty)

Material Handling Equipment (MHE) includes machines, systems, and tools for moving, storing, controlling, and protecting goods and products through manufacturing, distribution, and consumption, with examples like forklifts, conveyors, < pallet jacks< , < cranes< , < robots< , and < racks< . These systems improve efficiency, reduce manual labor, enhance safety, and ensure smooth supply chain flow by automating tasks like transport, positioning, and storage, categorized into transport, storage, positioning, and unit load equipment.     Common Types of MHE

• Industrial Trucks: Forklifts (counterbalance, reach, rough terrain), pallet jacks, stackers, order pickers.
• Conveyors: Belt, roller, and other systems for continuous movement.
• Storage Equipment: Racks, shelving, carousels, Automated Storage and Retrieval Systems (AS/RS).
• Bulk Handling Equipment: For loose materials like grains, powders, liquids (e.g., conveyors, silos).
• Automated Systems: Autonomous Mobile Robots (AMRs), Automated Guided Vehicles (AGVs).
• Positioning Equipment: Lifts, hoists, manipulators, lift tables. 

Key Functions

• Transport: Moving items within a facility or to vehicles (e.g., forklifts, conveyors).
• Storage: Organizing and holding inventory (e.g., racks, AS/RS).
• Positioning: Placing items in specific spots, often during processing (e.g., lifts, manipulators).
• Unit Load Formation: Creating stable loads for handling (e.g., palletizing). 

Importance

• Increased Productivity: Speeds up operations and reduces bottlenecks.
• Cost Reduction: Minimizes labor, damage, and loss.
• Improved Safety: Reduces physical strain and accidents from manual lifting.
• Enhanced Control: Better tracking and management of materials. 

Eot Cranes An electric hoist is a motorized lifting device that uses electricity to lift, lower, and move heavy loads, reducing manual labor and increasing efficiency in industrial settings like warehouses, factories, and construction sites. It typically consists of an electric motor, gearbox, drum or chain system, and a hook, controlled by a pendant or remote. These hoists can operate as standalone units or as part of larger systems, like cranes, using either wire rope or chains for lifting.  Key Components & How It Works:

• Motor & Gearbox: Converts electrical energy into mechanical force. 
• Lifting Mechanism: A wire rope or chain wraps around a drum (for rope hoists) or engages a sprocket (for chain hoists). 
• Control: An operator uses buttons or a remote to control vertical movement (lift/lower) and sometimes horizontal travel via a trolley. 
• Trolley: A wheeled mechanism that moves the hoist along a beam (like on an overhead crane). 

Types of Electric Hoists:

• Electric Wire Rope Hoists: Use wire rope, ideal for heavy lifting and longer distances. 
• Electric Chain Hoists: Use a chain, often better for shorter lifts and precise positioning. 

Common Applications:

• Manufacturing & Assembly Lines
• Warehousing & Logistics
• Construction Sites
• Automotive Garages (e.g., engine lifts)
• Maintenance (e.g., lowering chandeliers) 

An electric hoist is a motorized lifting device that uses electricity to lift, lower, and move heavy loads, reducing manual labor and increasing efficiency in industrial settings like warehouses, factories, and construction sites. It typically consists of an electric motor, gearbox, drum or chain system, and a hook, controlled by a pendant or remote. These hoists can operate as standalone units or as part of larger systems, like cranes, using either wire rope or chains for lifting.  Key Components & How It Works:

• Motor & Gearbox: Converts electrical energy into mechanical force. 
• Lifting Mechanism: A wire rope or chain wraps around a drum (for rope hoists) or engages a sprocket (for chain hoists). 
• Control: An operator uses buttons or a remote to control vertical movement (lift/lower) and sometimes horizontal travel via a trolley. 
• Trolley: A wheeled mechanism that moves the hoist along a beam (like on an overhead crane). 

Types of Electric Hoists:

• Electric Wire Rope Hoists: Use wire rope, ideal for heavy lifting and longer distances. 
• Electric Chain Hoists: Use a chain, often better for shorter lifts and precise positioning. 

Common Applications:

• Manufacturing & Assembly Lines
• Warehousing & Logistics
• Construction Sites
• Automotive Garages (e.g., engine lifts)
• Maintenance (e.g., lowering chandeliers) 

EOT (Electric Overhead Traveling) crane specifications cover capacity (typically 1–500 tons), span (3–60+ m), lift height, duty class (M3-M8), and speed. Key components include steel girders (IS:2062), wire rope/chain hoists, motors (IE2/IE3), brakes, and safety features like overload protection. These cranes are designed for indoor/outdoor use, ambient temperatures up to , and comply with standards like IS:3177 or FEM. Technical Specifications

• Capacity (SWL): 1 Ton to 500 Tons.
• Span (Center to Center): 3 meters to 60+ meters.
• Lifting Height: 3 meters to 300 meters.
• Duty Class (IS/FEM): Class II/III, M3-M8 (Light to Heavy duty).
• Speed (Lift/CT/LT): Variable (VFD) or fixed; e.g., 5-ton lifting speed $\sim$8-11.5 m/min, Cross Travel (CT) 20-30 m/min.
• Power Supply: 415V, 3 Phase, 50Hz AC.\Mechanical & Electrical Features

• Structure: Single girder (up to 20t) or Double girder (higher capacity).
• Hoisting Mechanism: Electric Wire Rope Hoist or Crab.
• Motors: Squirrel Cage Induction Motors, TEFC, F-Class insulation, IP55 protection.
• Brakes: Electromagnetic or Electro-hydraulic thruster brakes for hoist, CT, and LT.
• Controls: Pendant station, cabin control, or wireless radio remote.Safety & Standards

• Standards: IS:3177, IS:807, IS:2062, FEM.
• Safety Devices: Overload limiter, hoisting limit switches, CT/LT limit switches, emergency stop button. 5-Ton EOT Crane Typical Spec 

• Capacity: 5 Ton.
• Span: 10.5m - 31.5m.
• Lifting Height: 6m - 30m.
• Mechanism: M5 (Moderate duty)

An EOT (Electric Overhead Travelling) Crane is a heavy-duty material-handling machine designed to lift, lower, and transport loads horizontally and vertically within a defined industrial space. Also known as a bridge crane, it operates on parallel runways with a travelling bridge spanning the gap, powered entirely by electricity. Core Components

• Bridge: The main horizontal structure that spans the width of the workspace.
• Hoist: The lifting mechanism that raises or lowers the load using wire ropes or chains.
• Trolley (Crab): Carries the hoist and moves laterally along the bridge girder.
• End Carriages (End Trucks): Mounted at both ends of the bridge, these house the wheels that allow the entire crane to move longitudinally along the runway rails.
• Runway: The elevated tracks fixed to the building's structure on which the crane travels.
• Control System: Operators manage the crane via a pendant unit, wireless radio remote, or an attached operator's cabin. 

Main Types & Configurations

• Single Girder EOT Crane: Features one bridge beam. It is lightweight, cost-effective, and typically used for lighter loads (up to 20 tons) and shorter spans.
• Double Girder EOT Crane: Utilises two parallel beams. It offers higher lifting capacities (up to 500+ tons), greater stability, and higher hook height for heavy-duty industrial tasks.
• Top Running: The bridge travels on top of the runway rails, providing maximum headroom.
• Under Running (Underslung): The bridge is suspended from the bottom flange of the runway girders, ideal for facilities with limited overhead space.
• High Efficiency: Streamlines workflows and reduces manual labour by up to 40% in material handling.
• Precision Control: Modern systems often include Variable Frequency Drives (VFDs) for smooth acceleration and precise load positioning.
• Safety Mechanisms: Equipped with overload protection, limit switches to prevent over-travel, emergency stops, and anti-collision sensors.
• Customisable: Tailored to specific industry needs, including varying spans, lifting heights, and specialised attachments like magnets or grabs.Typical Applications

EOT cranes are essential in various sectors:Manufacturing: For assembly line movement and handling heavy machinery parts.

• Steel Plants: Moving molten metal, heavy coils, and plates.
• Warehousing

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A DGEOT (Double Girder Electric Overhead Travelling) Auxiliary Crab Trolley is a secondary hoisting mechanism mounted on the bridge of a heavy-duty crane, designed for handling lighter loads with higher speed while the main crab handles the primary, heavier loads. It is a critical component for Double Girder EOT cranes, typically in industrial applications. Key Features and Specifications

• Capacity: Commonly available in 5-10 Ton capacities, though often paired with main hoists up to 100T.
• Operation: Electrically operated via a 3-phase, 415V power source.
• Design: Features a "top-running" design on the main crane girder, with robust construction for industrial environments.
• Safety: Equipped with limit switches to prevent over-hoisting or over-lowering.
• Components: Includes a hoisting motor, gearbox, brake, rope drum, and hook block.
• Construction: Mild steel with powder-coated finishing. 

Typical Pricing and ManufacturersAuxiliary crab trolleys are primarily manufactured and supplied by engineering firms in India, particularly around Ahmedabad and Gujarat. 

• Price Range: Typically ranges from ₹1,20,000 to ₹6,00,000+ per unit depending on capacity, lifting height, and features.
• Key Suppliers: Vikrant Engineering Works, Derrick Engi Works, Akash Engineering Works, and Inovic CRM Engineering. 

Advantages

• Efficiency: Allows for faster handling of small loads, improving cycle times.
• Flexibility: Provides dual-capacity lifting capability on a single crane.
• Maintenance: Open-type construction allows for easier maintenance. 

 

A DGEOT Crab Trolley (Double Girder Electric Overhead Traveling Crab Trolley) is the crucial component of a double girder EOT crane that carries the hoist, moving horizontally along the crane's girders to lift and position heavy loads in industrial settings like factories and workshops, offering high capacity, stability, and precision for material handling. What it is:

• It's an independent machine with its own motor, gearing, and runner wheels, designed to travel across the bridge of a double girder crane.
• It houses the hoist, which is the mechanism that lifts and lowers the load. 

Key Components & Functions:

• Crab/Trolley: The entire unit that moves along the girders (cross-travel).
• Hoist: The part within the crab that performs the vertical lifting (hoisting/lowering).
• Motors & Gearboxes: Provide power for both the cross-travel (crab) and lifting (hoist) motions.
• Electromagnetic Brakes: Ensure safety by holding the load when the motor stops. 

Types:

• Double Girder Trolley: Specifically designed for double girder EOT cranes, offering high load capacity and stability.
• Low Headroom Trolley: A variation that allows for compact crane designs. 

Applications:

• Heavy industries, steel plants, power plants, workshops, and manufacturing facilities. 

Key Benefits:

• High Load Handling: Ideal for medium to heavy lifting demands.
• Stability & Precision: Smooth, controlled movement for accurate load positioning.
• Robust Construction: Built with heavy-duty steel for demanding environments. 

In essence, the DGEOT crab trolley is the workhorse of a double girder overhead crane, responsible for its crucial horizontal movement and lifting capabilities, ensuring efficient material handling.