Single Girder Brand New Overhead Crane

Core Components: Gearbox, Motor, Gear

Place of Origin: Henan, China

Warranty: 1 Year

Weight (KG): 10000 kg

Video outgoing-inspection: Provided

Machinery Test Report: Provided

Selling Units: Single item

Single package size: 600X300X300 cm

Single gross weight: 200.000 kg

 

 

 

1.Main beam

Shape and Material:

The main beam is typically made from high-strength steel, ensuring it can bear the load and endure the stresses of lifting and moving heavy objects.

The shape of the main beam can vary, but it is often an I-beam, box beam, or truss design. The choice depends on factors like the crane's lifting capacity, span, and environmental conditions.

I-beam: Most commonly used for light to medium-duty applications.

Box beam: Offers more rigidity and strength, often used for higher capacities or cranes with longer spans.

Truss beam: A more complex structure, offering a lightweight yet strong solution for large cranes.

 

2.Lifting System

Types of Lifting Systems for Single Girder Cranes
1)Electric Wire Rope Hoist System

Hoist Type: This system uses a wire rope wound around a drum to lift and lower heavy loads.

Lifting Capacity: Typically used for heavier lifting tasks (up to 20 tons or more).

Applications: Suitable for industrial environments where high lifting capacities, precise movements, and long spans are required.

2)Electric Chain Hoist System

Hoist Type: Uses a chain and sprocket mechanism to lift loads.

Lifting Capacity: Suitable for lighter lifting tasks (usually up to 10 tons).

Applications: Ideal for small workshops, warehouses, and spaces with limited height.

3.End carriage

The end carriage of a single girder brand new overhead crane is a critical component that supports the entire crane structure and facilitates its movement along the runway beams. It is designed to carry the weight of the crane, including the main girder, hoist, and trolley, while ensuring smooth and stable travel across the rails.

 

4.Crane travelling mechanism

The crane traveling mechanism of a single girder brand new overhead crane is responsible for enabling the entire crane to move horizontally along the runway. This mechanism allows the crane to cover a large area, positioning itself to lift or lower loads at different points along the crane's span. It plays a crucial role in ensuring that the crane operates smoothly, efficiently, and safely across the runway rails.

5.Trolley travelling mechanism

The trolley traveling mechanism of a single girder brand new overhead crane is a crucial component responsible for moving the hoist along the girder, allowing it to position loads accurately across the crane's span. The trolley is mounted on the main girder and is designed to move horizontally to the left or right, typically in conjunction with the crane's main traveling mechanism, to cover the full operating area of the crane.

6.Crane wheel

1)Wheel Material
Steel or Alloy Steel: The crane wheels are typically made from high-quality steel or alloy steel to withstand heavy loads, resist wear, and provide long-term durability. These materials offer high strength and hardness, making them suitable for industrial environments where heavy lifting and continuous movement are common.

Heat Treatment: Some crane wheels are heat-treated to improve their hardness and resistance to wear. This treatment enhances the wheel's ability to handle heavy loads and reduces maintenance requirements.

2)Wheel Design
Grooved Wheels: Many crane wheels have a grooved profile that fits into the rails of the runway system. This design helps ensure proper alignment and smooth movement of the crane.

Flat Wheels: Some crane systems may use flat wheels, where the wheels directly contact the flat rails on the runway. This design is often used in cranes with lower speed or lighter loads.

Wheel Diameter: The diameter of the crane wheels depends on the size and weight of the crane. Larger wheels are often required for cranes that handle heavier loads or need to travel longer distances.

7.Crane Hook

The hook of a single girder brand new overhead crane is an essential component in the lifting system. It serves as the point where loads are attached and lifted by the crane. The hook must be strong, durable, and designed to handle heavy weights while maintaining safety and operational efficiency. Let's dive into the key features and functions of the hook in this crane system.

8.Motor

The motor in a single girder brand new overhead crane plays a crucial role in driving the crane's various mechanisms, such as the hoisting, trolley, and crane travel systems. It provides the necessary power for lifting loads, moving the trolley, and enabling the crane to travel across its runway. Let's explore the components, types, and functions of the crane motor in more detail.

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9.Sound and light alarm system & limit switch

The Sound and Light Alarm System & Limit Switch on a single girder brand new overhead crane are crucial components that enhance operational safety and prevent accidents during lifting and traveling operations. Here's a breakdown of their functions and importance:
1)Sound and Light Alarm System
Function:
This system provides audible (sound) and visual (light) alerts to signal crane movement or abnormal operating conditions. It ensures that people in the vicinity are aware of crane activity, helping to avoid collisions and injuries.
2)Limit Switches
Function:
Limit switches are safety devices that prevent over-travel or mechanical collision by stopping or controlling the motion of the crane, trolley, or hoist at predefined points.

10.Safety Devices

1)Limit Switches
Lifting Limit Switch: Prevents the hook from over-hoisting or over-lowering.

Travel Limit Switch: Stops crane or trolley from colliding with end buffers or derailment.

2)Overload Protection Device
Detects if the lifting load exceeds the crane's rated capacity.

Automatically stops hoisting or triggers an alarm to prevent mechanical failure.

3)Emergency Stop Button
Located on the pendant, remote control, or control panel.

Instantly shuts down all crane operations in case of an emergency.

4)Sound and Light Alarm System
Emits audible and visual warnings during crane movement or in dangerous situations.

Alerts nearby personnel to stay clear of the operational area.

5)Anti-Derailment Devices
Installed on the end carriage to prevent the crane from derailing during travel.

6)Overheat Protection (Motor and Electrical Systems)
Prevents damage due to excessive motor temperature or electrical overload.

Shuts down the crane when overheating is detected.

 

11.Control Mode

1)Pendant Control (Wired Controller)
Description: A hand-held control device physically connected to the crane via a cable.

Features:

Includes buttons for up/down, left/right, forward/backward, and emergency stop.

Easy to use and cost-effective.

Best for: Short-span cranes and simple operations where the operator stays close.

2)Wireless Remote Control
Description: A radio-frequency remote controller allowing the operator to control the crane from a distance.

Features:

Enhances safety by allowing operators to stand away from the load.

Lightweight, portable, and easy to use.

Dual transmitters can be configured for backup.

Best for: Environments with obstacles, large span cranes, or when overhead access is needed.

3)Cabin Control (Rare for Single Girder)
Description: An enclosed cabin mounted on the crane where the operator sits and operates controls.

Features:

Provides full visibility and control for large cranes.

Not commonly used in single girder cranes due to size limitations.

Best for: Heavy-duty or special applications (usually used on double girder cranes).

4)Automatic or Semi-Automatic Control (Optional)
Description: PLC-based or software-controlled systems for predefined lifting operations.

Features:

Supports preset movement paths, speed control, or synchronized operations.

Useful for production lines or intelligent warehouse systems.

Best for: Advanced or repetitive industrial tasks needing high efficiency and precision.

Sketch

 

Main technical

 

 

1. Cost-Effective
Lower manufacturing, installation, and maintenance costs compared to double girder cranes.

Fewer components and lighter structure reduce overall project investment.

2. Compact and Lightweight Design
Requires less headroom and space, ideal for facilities with limited height.

Easier to integrate into existing buildings or workshops.

3. Simplified Installation
Faster assembly and easier alignment due to its straightforward structure.

Reduced labor time and downtime during installation.

4. Low Dead Weight = Reduced Load on Runway Structure
Minimizes the load transferred to the building structure or gantry supports.

Allows for lighter runway beams and supporting columns.

5. Efficient Operation
Suitable for a wide range of general lifting tasks.

Can be equipped with advanced controls like remote operation and VFD (variable frequency drive) for smooth, precise movements.

6. Ease of Maintenance
Fewer moving parts and simpler mechanical layout lead to easier inspection and servicing.

Accessible components help reduce crane downtime during maintenance.

7. Customizable Options
Compatible with various hoist types, control systems, and optional accessories (e.g., anti-sway, limiters).

Adaptable for specific industry needs like manufacturing, logistics, or repair workshops.

 

1. Manufacturing Workshops
Transporting raw materials, parts, and finished products between workstations.

Ideal for metalworking, machinery assembly, electronics, and light fabrication.

2. Warehouses & Distribution Centers
Loading and unloading pallets, containers, and packaged goods.

Efficient internal logistics in storage areas with height limitations.

3. Maintenance and Repair Shops
Lifting engines, machine parts, or heavy tools during service and repair operations.

Compact size allows use in confined spaces.

4. Steel & Metal Processing
Handling steel plates, coils, profiles, and structural components.

Often used with magnet lifters or clamps for safer handling.

5. Automotive Industry
Moving vehicle parts and sub-assemblies during production or maintenance.

Used in engine plants, assembly lines, and repair bays.

6. Power Plants
Maintenance and installation of turbines, pumps, and other heavy equipment.

Offers precise positioning and safe handling in critical operations.

7. Paper, Textile, and Food Industries
Lifting equipment, raw materials, or large rolls (paper/textile).

Ensures clean, efficient, and damage-free material handling.

8. Small Foundries and Fabrication Shops
For repetitive lifting tasks, mold handling, or part transfer in compact environments.

Often used with a wire rope or electric chain hoist.

 

1. Technical Design & Engineering
Requirement Analysis: Confirm lifting capacity, span, lifting height, control mode, etc.

3D CAD Design & Structural Calculation: Ensure mechanical strength, load distribution, and compliance with standards (e.g., FEM, ISO, GB).

Approval of Drawings: Submit to client or quality team for confirmation before manufacturing.

2. Raw Material Procurement
Main Beam Material: Typically high-strength Q235B/Q345B structural steel.

Standard Components: Motors, wheels, brakes, electric panels, etc., from approved suppliers.

Hoist System: Electric wire rope hoist or chain hoist sourced or manufactured.

3. Steel Structure Fabrication
Cutting & Pre-treatment: Laser/plasma cutting of plates, surface rust removal.

Beam Assembly & Welding: Flange and web plate welded to form the main girder.

End Carriage Fabrication: Welded or bolted structure for smooth crane movement.

Welding Inspection: Non-destructive testing (UT/MT) of critical welds.

4. Surface Treatment
Sandblasting: Removes scale and impurities, improves adhesion.

Primer & Paint Coating: Anti-rust primer and industrial-grade topcoat applied (usually 2–3 layers).

Color Coding: As per customer specifications or safety color standards.

5. Mechanical Assembly
End Carriages: Mounting wheels, bearings, buffers, and coupling devices.

Trolley & Hoist Integration: Installation of lifting mechanism, drum, hook, reducer.

Crane Wheels & Axles: Precision installation with proper alignment.

6. Electrical System Installation
Wiring & Cable Routing: Internal wiring for control cabinet, hoist, and trolley.

Control Panels: Mounting limit switches, contactors, inverters, and protective devices.

Pendant or Remote System: As per client requirements.

7. Pre-Delivery Testing
No-Load Testing: Movement in all directions, brake function, signal testing.

Load Testing: Static and dynamic load tests using test weights (typically 125% of rated load).

Safety Device Verification: Check limit switches, alarms, and emergency stop functionality.

8. Final Inspection & Quality Control
Dimensional Check: Confirm span, height, and component alignment.

Painting Check: Ensure full coating coverage and thickness.

Documentation Review: Technical files, manuals, test reports.

9. Packing & Delivery
Component Packaging: Electricals packed in wooden cases; beams and steel structures in plastic wrap or tarpaulin.

Labeling & Marking: Ensure correct identification and easy installation on-site.

Shipping Logistics: Load and secure components in containers or flatbed trucks.

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%.