Single Girder Overhead Crane

The first step in selecting the right crane is to clearly define your lifting needs. Understanding the specifics of your material handling tasks will help narrow down the options. Key factors to consider include:

• Load Capacity: How heavy are the materials you need to lift? Single girder cranes typically handle loads from 1 ton to 25 tons, but it’s important to choose a crane that can safely accommodate the heaviest load you expect to lift.
• Lifting Height: Determine the height to which you need to lift materials. Ensure that the crane offers a lifting height that suits your facility’s requirements and clears any obstacles.
• Span: The span is the distance between the crane’s support columns. Measure the width of your workspace to ensure the crane fits well within your operational area.

The working environment plays a significant role in determining which type of overhead crane single girder is best for your needs. Consider the following factors:

• Space Constraints: If your facility has low ceilings or limited space, an under running single girder crane may be ideal. These cranes are suspended from the ceiling and require less headroom, offering a clean, unobstructed floor area beneath.
• Working Conditions: Some industries, such as steel mills, chemical plants, or warehouses dealing with hazardous materials, require specialized cranes. For these environments, you may need explosion proof cranes or metallurgical cranes that are built to withstand extreme conditions.
• Indoor vs. Outdoor Use: If your crane will be used outdoors or in a harsh environment, ensure you choose a crane designed for such conditions, often featuring weather-resistant components.

Our single girder cranes offer a variety of control options to suit different operational needs. You should consider the most efficient and ergonomic control system for your business:

• Pendant Control: The simplest control option, where the operator controls the crane from a fixed location on the ground.
• Remote Control: Provides more flexibility by allowing the operator to control the crane from anywhere within the working area, improving safety and efficiency.
• Cab Control: For larger operations, some single girder overhead cranes come with a cabin for the operator, offering full visibility and more precise control over the crane’s movements.

Our single girder electric overhead travelling cranes are equipped with various safety features to protect both the operator and the load:

• Overload Protection: This feature ensures that the crane will not lift loads that exceed its rated capacity, preventing accidents and damage.
• Limit Switches: These switches prevent the crane from traveling beyond its designed limits, ensuring safe operation.
• Anti-Sway Systems: For added stability, anti-sway technology helps reduce the oscillation of the load during movement, ensuring safer transport of materials.

Before the overhead crane installation process begins, several factors must be considered:

• Site Evaluation: Ensure the installation site is clear of obstacles and has a stable, level surface. The crane will need adequate space for movement along its track, so the area should be measured and marked according to the single girder overhead crane specifications.
• Preparation of Materials: Gather all necessary materials, tools, and equipment for the installation. This includes the single girder overhead crane components (girder, hoist, end beams, motors, etc.), bolts, lifting equipment, and safety gear.
• Crane Specifications: Review the crane’s specifications, including its lifting capacity, span, lifting height, and control type (manual, pendant, or remote). Ensure that all components are compatible with the designated space and operational requirements.

The installation of a single girder overhead crane typically involves several major components:

• Girder Assembly: The overhead crane single girder forms the main structural element of the crane. It should be positioned on the beam supports (e.g., runway beams). Carefully assemble the girder, ensuring that the connections between sections are tight and secure.
• Trolley and Hoist: The trolley and hoist are the moving parts of the crane that carry the load. The trolley should be aligned with the girder and properly mounted, allowing it to move smoothly across the span. Install the hoist on the trolley, ensuring that the lifting mechanism is well-secured.
• End Beams: Attach the end beams to the crane’s girder. These beams support the crane’s movement along the runway system and help distribute the load. Ensure that the beams are properly aligned with the crane’s structural components.

The runway system consists of rails that guide the crane’s movement. Proper alignment is essential to ensure the crane operates smoothly.

• Install the Rail Tracks: Position the rail tracks along the path where the crane will travel. Ensure the tracks are level and parallel to each other, as any misalignment can cause uneven travel and unnecessary wear on the crane’s wheels.
• Mount the Runway Beams: The runway beams should be securely mounted to the structure (e.g., building columns or walls). Check that the distance between the runway beams matches the top running crane span.
• Track Alignment: Once the rails and runway beams are installed, check the track alignment. Use a level and measuring tools to ensure the tracks are properly aligned for smooth crane operation.

With the girder, trolley, hoist, and end beams assembled, the crane needs to be lifted into position.

• Lifting Equipment: Use appropriate lifting equipment such as cranes, hoists, or other lifting devices to raise the assembled crane structure into position. Ensure that the lifting equipment has sufficient capacity to handle the weight of the crane components.
• Position the Crane: Carefully position the crane onto the rails of the runway system. Ensure that the crane is centered and properly aligned with the runway. Double-check that the crane can move freely along the track without any obstructions or friction.

Once the physical structure of the crane is in place, the next step is to install the electrical systems, which include wiring, motors, and control mechanisms.

• Wiring and Connections: Connect the hoist, trolley, and main crane motor to the power supply. This will likely involve running electrical wires and ensuring all connections are tight and secure. Always follow the manufacturer’s guidelines and local electrical codes.
• Control Panel Installation: Install the control panel in a convenient location, ensuring that the operator has easy access to control the crane. The control system could be manual, pendant-controlled, or remote-controlled, depending on the overhead crane specifications.
• Safety Features: Install any safety features such as limit switches, emergency stop buttons, and overload protection mechanisms. These features are essential for safe crane operation.

Once the crane is installed, it’s time to test its functionality.

• Test the Movement: Activate the crane and test the movement along the runway. Check the hoist for smooth operation, and ensure the trolley moves freely across the girder. Look for any signs of friction or irregular movement.
• Check the Load Capacity: Perform a load test to ensure the crane can handle its rated capacity. Start with a lighter load and gradually increase it to check the hoist’s lifting capacity, stability, and functionality.
• Check Electrical and Control Systems: Test all electrical systems and the control mechanisms. Ensure that the operator can control the crane smoothly, and all buttons, switches, and remote controls are functioning correctly.

Before putting the crane into full operation, conduct a thorough inspection:

• Structural Integrity: Check all bolts, welds, and connections for any signs of stress or looseness. Ensure that the crane’s structure is robust and secure.
• Safety Features: Verify that all safety features, such as emergency stops, limit switches, and overload protection, are working properly.
• Documentation: Review the crane’s manual and ensure that the installation meets all safety standards, local regulations, and manufacturer guidelines. Document all inspection results, including test load data and safety checks.

Once the crane has been installed, tested, and inspected, it’s time to train the operators.

• Operator Training: We provide comprehensive training on how to operate the overhead crane safely. Cover all aspects, including controls, load handling, emergency procedures, and daily maintenance.
• Handover to the Client: After training, we officially hand over the crane to the client, ensuring they have all necessary documentation, including manuals and certificates of compliance.