25Ton Single Girder Overhead Crane With CE Certification

1. Main Girder

Description: The primary horizontal beam that spans the building.

Function: Supports the trolley and the load. Transfers the load to the end trucks and runway rails.

Notes: Typically a box-section or I-beam made of high-strength steel, designed to carry 25 tons with minimal deflection.

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2. End Trucks

Description: Located at both ends of the girder.

Function: Roll along the runway rails, supporting the girder and load.

Components: Wheels, bearings, motor, and frame.

Notes: Designed for smooth motion and to distribute the crane load evenly along the runway.

3. Trolley

Description: Moves along the main girder.

Function: Carries the hoist and positions the load precisely.

Components: Wheels, frame, hoist mount, motors (for motorized trolleys).

C. Trolley and Hoist

Trolley: Moves along the girder to position the load.

Hoist: Lifts or lowers the load. Can be electric chain or wire rope hoist.

 

4. Hoist

Description: Lifting mechanism attached to the trolley.

Function: Lifts, lowers, and holds the load.

Types: Electric wire rope hoist (common for 25 tons), sometimes chain hoist for lighter applications.

Components: Drum, motor, brake, rope or chain, hook, and limit switches.

5. Runway System

Description: Rails installed along the factory building or workshop.

Function: Guides crane movement along the length of the building.

Notes: Must be level, straight, and strong enough to support crane + maximum load.

 

6. Control System

Description: The interface for operating the crane.

Function: Controls lifting, lowering, trolley travel, and crane movement.

Types: Pendant control, cabin control, or radio remote.

CE Requirement: Control systems must comply with safety and electrical standards.

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7. Safety Devices

Overload Protection: Prevents lifting beyond 25 tons.

Limit Switches: Prevents trolley over-travel and over-lifting.

Emergency Stop: Immediately stops all crane movement.

Optional CE Safety Devices: Anti-collision sensors, warning lights, or alarms.

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8. Auxiliary Systems

Motors and Drives: Electric motors for hoist, trolley, and crane movement.

Braking Systems: Mechanical or hydraulic brakes to hold load safely.

Walkways / Access Ladders: For inspection and maintenance.

Hydraulic or Pneumatic Components: Only if additional lifting assistance or braking is required.

 

Sketch

 

Main technical

 

1. High Load Capacity

Can lift up to 25 tons, making it suitable for heavy machinery, steel coils, large equipment, and bulk materials.

Reduces the need for multiple cranes or manual lifting systems.

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2. Cost-Effective

Single girder design uses less steel and simpler structure than double girder cranes.

Lower manufacturing, installation, and maintenance costs.

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3. Space-Efficient

Requires less headroom than double girder cranes, making it ideal for factories with limited vertical clearance.

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4. CE-Certified Safety

Complies with European safety standards (EN 15011, EN ISO 12100).

Includes overload protection, limit switches, and emergency stop features.

Reduces the risk of accidents and ensures safe operation.

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5. Versatile Material Handling

Moves heavy loads longitudinally along the runway and laterally across the girder.

Suitable for a variety of industries: metal fabrication, warehouses, workshops, and assembly lines.

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6. Easy Installation & Maintenance

Lightweight single girder structure allows for easier installation and alignment.

Fewer moving parts than double girder cranes make maintenance faster and cheaper.

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7. Precision & Efficiency

Allows precise positioning of heavy loads.

Reduces manual handling and material handling time.

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8. Flexible Control Options

Can be operated via pendant, cabin, or radio remote control.

CE-certified control ensures ergonomic and safe operation.

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9. Long Service Life

Durable steel structure and high-quality hoist motors provide reliable operation for years.

CE standards ensure that design and materials meet rigorous European industrial standards.

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✅ Summary

A 25-ton single girder overhead crane with CE certification combines high lifting capacity, cost efficiency, safety, and versatility, making it ideal for industrial factories, warehouses, and workshops handling heavy loads.

 

Here's a detailed breakdown of the applications of a 25-ton single girder overhead crane with CE certification:

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1. Heavy Machinery Factories

Lifts and moves large machinery parts during assembly or fabrication.

Ideal for machine shops, automotive plants, and equipment manufacturing facilities.

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2. Steel Plants & Metal Fabrication Workshops

Handles steel coils, plates, and fabricated components up to 25 tons.

Reduces manual handling and speeds up material processing workflows.

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3. Warehouses

Moves bulky and heavy materials efficiently.

Helps with storage, stacking, and order fulfillment for industrial goods.

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4. Shipbuilding & Repair

Transports large ship components such as engines, hull sections, or heavy equipment.

CE-certified safety ensures secure handling of critical loads.

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5. Construction Material Handling

Ideal for precast concrete elements, beams, and columns in prefabrication plants.

Provides precise positioning and reduces on-site labor requirements.

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6. Assembly Lines

Moves heavy components between production stations.

Facilitates efficient workflow in automotive, aerospace, or industrial assembly lines.

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7. Maintenance Operations

Can be used in factories for lifting and positioning heavy equipment during maintenance or repairs.

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✅ Summary

A 25-ton single girder overhead crane with CE certification is widely used wherever heavy industrial materials or equipment need to be lifted, moved, and precisely positioned. Typical applications include:

Machinery manufacturing

Steel and metal fabrication

Warehousing and storage

Shipbuilding and repair

Prefabrication and construction material handling

Assembly line operations

 

Here's a detailed production procedure for a 25-ton single girder overhead crane with CE certification, step by step, from design to on-site commissioning:

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1. Design & Planning

Load & Capacity Analysis:

Determine lifting capacity (25 tons), span, lift height, and trolley travel.

Assess factory/workshop dimensions and runway layout.

Structural Design:

Main girder, end trucks, trolley frame, and hoist mounting designed to withstand heavy loads with minimal deflection.

Control & Safety Design:

Specify CE-compliant control system (pendant, cabin, or radio remote).

Include limit switches, overload protection, emergency stops, and braking systems.

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2. Material Preparation

Steel Components:

High-strength steel for main girder, end trucks, trolley frame, and hoist mounting.

Mechanical Components:

Wheels, bearings, shafts, couplings, hoist drum, and hooks.

Electrical Components:

Motors for hoist, trolley, and crane movement.

Control panels, wiring, sensors, limit switches, and CE-certified components.

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3. Fabrication of Components

Main Girder:

Cut and weld steel plates or I-beams.

Add stiffeners and reinforcements for 25-ton capacity.

End Trucks:

Weld frames and install wheels, bearings, and driving motors.

Trolley & Hoist:

Assemble wire rope hoist with drum, motor, brake, hook, and mounting frame.

Mount trolley wheels and frame for movement along the girder.

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4. Sub-Assembly

Mount end trucks to main girder.

Attach trolley and hoist to the girder.

Check alignment and mechanical fit.

Preliminary movement tests along girder and end trucks.

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5. Control System Installation

Install pendant, cabin, or radio remote control.

Connect all motors, limit switches, and safety devices.

Ensure CE compliance of electrical and control components.

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6. Testing & Calibration

No-Load Test: Move crane along runway and trolley along girder; test hoist without load.

Load Test: Lift 25 tons (or slightly higher for safety margin) to verify structure, hoist, and safety devices.

Safety Verification: Test limit switches, overload protection, emergency stop, brakes, and alarms.

Adjust speeds and alignments as needed for smooth operation.

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7. Surface Protection

Clean all steel components to remove oil, dust, and rust.

Apply anti-corrosion paint or coating to girder, trolley, end trucks, and hoist.

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8. Packaging & Shipping

Disassemble crane if required for transport.

Carefully load components for shipping to factory or installation site.

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9. On-Site Installation

Install runway rails in the factory building.

Mount main girder with end trucks on runway.

Place trolley with hoist onto the girder.

Connect electrical and control systems.

Perform final load test and CE compliance inspection.

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10. Commissioning

Test crane under full operational conditions: lifting, trolley movement, and crane travel.

Verify all safety devices and CE compliance.

Hand over crane for production use.

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✅ Summary Flow

Design & Planning → Material Preparation → Fabrication → Sub-Assembly → Control Installation → Testing & Calibration → Surface Protection → Packaging → On-Site Installation → Commissioning

This procedure ensures the crane is safe, durable, CE-compliant, and fully operational for handling 25-ton loads.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.