Crane Installation: How to Install a Single Girder Overhead Crane

How to install a single girder overhead crane? 5 ton single girder overhead crane installation procetures for reference. Overhead crane installation. It is critical to make the overhead crane installation process safe and orderly, which must be planned, organized, and built step-by-step in order to assure smoothness of single girder overhead crane installation. Each job employee must be aware of the following construction plan and be able to apply it with ease:

Preparation of single girder overhead craneinstallation

1. Site selections for installation

The site space of a single girder overhead crane installation should be sufficient to fulfill the needs of an overturn lifting installation, as well as the ability to plug in welding machines and other electric tools.

2. Equipment and tool preparation

Two sets of welding machines, two sets of oxygen acetylene, two sets of manual chain hoists, a cushion wooden ladder, lifting equipment, and a truck crane are required for the project.

3. Material preparation

This project requires a single girder overhead crane crane rail, platen, clamp, steel material for producing a single girder overhead crane baffle, slide wire, and welding rod, all of which must be prepared in advance.

4. Working staff involved.

Determine how many people will be involved in this project: One electrician, one fitter, one riveter, one welder, one lifting worker, and one safety/head.

5. Basic safety requirements

Construction staff must closely adhere to the standards of safe operation of each type of construction activity in order to participate in this project; illegal operations are prohibited.

Fundamentals procetures of a single-girder overhead crane installation

Crane rail installation

• Clean up the site first, then accept the cement beam foundation under the rail of a single girder overhead crane.
• Leveling up and laying out.
• Check for positive reinforcement and measurement inspection, leveling, and straightening of single girder overhead crane rail, rail top, and rail joint connection.
• Installation of a single girder overhead crane stopper

The crane rail installation standards must meet TJ231-78 "mechanical equipment installation engineering construction acceptance specifications" rules, and the entire single girder overhead crane traveling must not exceed 10 mm. On the face, the difference between the highest and lowest joint of the left, right, offset is less than 1 mm. Joint clearance shall not exceed 2 mm, span deviation should not exceed 5 mm, and the relative height difference between cross two parallel tracks in the post should not exceed 10 mm, and in other places should not exceed 15 mm.

Installation of busbar

Sliding wire contact surfaces should be smooth and straight, with no rust, conductive good and appropriate installation, and a compensating mechanism should be established across the structure of the expansion joints. Power supply cable with red paint on conductive contact surface, device safety notice in proper place, or electric lamp Installing a suitable slip line, for example, should be straight, conductive, and have a soft cable to meet the requirements of line number, traction wire rope.

Bridge installation of single girder overhead crane

Single girder overhead crane assembly, want to put the bridge in the working position in the pad on the shelf, fix firmly, put end beam, measuring diagonal is poor, should not be greater than 5 mm, span should not be greater than 3 mm, completely comply with the rules, then assembling electric hoist, trolley running clearance should not be greater than 5 mm, final assembly control room

Electrical installation

4.Before installing a single girder overhead crane, be familiar with the electrical schematic diagram, detailed wiring diagram, electrical assembly drawing, and relevant technical data, as well as the working principles and functions of the various components. Installation issues arose during the process in order to precisely and swiftly process the data. The geopolitical resistance of all electrical components and the motor must be less than 0.8 ohms.

In a moist environment, the resistance should not be less than 0.4 ohms. Before doing the current test, double-check that each line is proper and that there are no bers. Check whether the direction is consistent, the travel switch power is in compliance with the direction's requirements, and the up and down limit device is safe and dependable during the test run. Before lifting construction, a safe and dependable safety equipment must be qualified; throughout the hoisting process, rigorous adherence to safe operation standards must be followed; unlawful actions are prohibited.

Crane tests

No load test, static load test, and dynamic load test shall be performed once the overhead crane has been qualified. Qualified self-checking, filling in the report's completion, notifying party a, organizing relevant departments to check and accept, and qualified after the consignment has been utilized.

Installation of 5 tons single girder overhead crane

How to assemble 5 tons single girder overhead crane? Check 5 ton crane assembly study to know 5 ton single girder overhead crane assembly process now. The 5 ton single girder overhead crane is designed and processed for our respectful client. And now the 5 ton crane assembly is for your reference.

Crane specifications of single girder overhead crane

• Single girder overhead crane lifting capacity: 5 tons
• Single girder overhead crane lifting height: 6 meters
• Single girder overhead crane span: 20 meters

Main procetures of 5 ton crane assembly

A single girder overhead crane is a type of warehouse lifting equipment that consists of the main girder, end carriages, electric hoist, and electrics.

Crane assembly 1: Install and fix the rail

To begin, we'll place one side crane rail in the middle of the bearing beam and secure it with welding bolts and a platen; after that, we'll judge the distance and secure the other side crane rail in the right location, as shown in the assembly diagram below.

5 ton single girder overhead crane assembly -crane rail assembly

Because the inner length of a 40GP container is 11.8 meters, we will cut the single girder overhead crane main girder into two pieces, one 11 meters long and the other 9 meters long, as shown in the diagram below.

Then we placed the 11-meter crane girder and the 9-meter crane girder in the open area, and used the forklift to combine the two parts. We will inspect the two pieces of crane girders bolt holes throughout this process, then secure the crane girders with our supplied high-strength bolts while checking the image.

5 ton single girder overhead crane assembly - single girder overhead crane girder connetion

Crane assembly 3: Linked the main crane girder and single girder overhead craneend carriages together

Then we shipped the two end carriages in addition to the single girder overhead crane main girder, and with the help of a forklift, we secured one side end carriage to the single girder overhead crane main girder; and then we fixed the electrics box and connected the wires on the other side. Then, after inspecting the picture below, fix the motors, travel limit switch, and other tiny crane parts.

5 ton single girder overhead crane assembly - single girder overhead crane end carriage

In the case of the electric hoist, we will send the hoist and the traveling trolley separately. During the installation, we will first connect the traveling trolley and hoist, as shown in the diagram below:

5 ton single girder overhead crane assembly - electric hoist

Crane assembly 5: Fixed the electric hoist to the main girder

Then we'll use a mobile crane to lift the single girder overhead crane bridge frame about 1 meter off the ground, and then we'll attach the electric hoist to the single girder overhead crane main girder with the help of personnel. Crane assembly 6: Put the single girder overhead craneon the rail

Because the single girder overhead crane will be put inside the warehouse, and most warehouses do not have much operating height for the mobile crane, we will remind the customer to have the roof uncovered.

5 ton single girder overhead crane assembly

Finally we'll double-check which side is the power source, and then secure the bar and current collector in place.

5 ton single girder overhead crane assembly- single girder overhead crane busbar

Then we'll connect the wires and electrics according to the electrics drawings we've provided.

5 ton single girder overhead crane assembly- single girder overhead crane electrics

Crane assembly 9: Turn on the power

Check to determine if the single girder overhead crane is powered properly by turning on the electricity. If not, we'll double-check the connections; if they're fine, we'll move on to the next step.

Crane assembly 10: Commissioning of 5 ton overhead crane

We normally examine two items before commissioning a single girder overhead crane:

The first step is to inspect the electric hoist lifting and traveling, as well as the crane moving, to ensure that they are in proper working order.

The second type of load testing is static load testing, for which we will use a 1.25 times, 6 ton lifting. The crane's correct performance is that it can lift 6 tons from one meter above the ground. The third type of testing is dynamic testing, which will involve testing the 1.1 times, 5.5tons. We'll raise the 5.5-ton cargo and observe how the crane moves.

Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.