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LX Underhung Overhead Crane Maintenance Construction Program

To install LX underhung single girder overhead crane smoothly, and make it work safely and orderly, it must be planned, organized, and have step-by-step construction. To help each operator do a good job and be handy, we designed the following construction program below for you to look over. LX under-hung single girder overhead crane parameter overview The LX underhung crane lifting capacity Q = 3 tons, span L = 13.5 m, lifting height H = 9 m, and the trolley traveling speed is 20 m / min. Preparation before installation 1). Installation site selection The installation site should have enough area to meet the needs of the installation of turning and lifting, the site should have a power supply to be ready to connect the welder and other power tools. 2). Preparation of equipment and tools This work requires 2 sets of welding machines, 2 sets of oxygen acetylene, 2 sets of hand-operated hoists, a matting ladder and spreader, and a crane, which Party A provides. 3). Preparation of materials The rails, pressure plate, plywood, bolts, plates used for making car gears as well as materials and welding rods used for sliding wires used for this project shall be prepared...

Small Portable Gantry Cranes: The Choice for Indoor Cranes

If you are looking for a solution for indoor lifting applications, the small portable gantry crane is always one of those options. With its small footprint and excellent maneuverability, it is popular among indoor cranes. In some practical cases, it is also used for outdoor work. In this article, we will explore the features of different types of small portable gantry cranes: manual portable cranes, electric mini-mobile portable cranes, and adjustable portable cranes. By comparing them, you will gain valuable insights and can choose the right option for your specific needs. What is a portable gantry crane? A portable gantry crane is a lightweight, mobile lifting device designed to provide support and stability when moving heavy loads from hundreds of kilograms to tons. It consists of a bridge, outriggers, and a lifting system. Versatile and easy to transport and assemble, these cranes are ideal for a variety of applications. Small portable gantry cranes offer a variety of advantages, including: Flexibility: They can be used in multiple locations within a facility or easily transported to different job sites. Versatility: They are suitable for a variety of applications and industries, such as manufacturing, construction, warehousing, and maintenance. Easy to assemble: Portable gantry...

Instruction and Application for Explosion-proof Electric Chain Hoist

Overview of Explosion-proof electric chain hoists HYBDB series explosion-proof chain electric hoist hereinafter referred to as explosion-proof hoist, according to provisions GB3836.1-2010《General Requirements for Equipment in Explosive Atmospheres Part 1》, GB3836.2-2010 《Explosive Atmospheres Part 2, Equipment protected by an outer layer “d”》、JB/T 1022-2011《Explosion-proof electric hoist》, JB/T 5317-2007《Electric chain hoist》and Q/LA0003-2014 《explosion-proof electric chain hoists》. The flameproof explosion-proof “EX d IIC T4 Gb”, which is suitable for the protection of workplaces with the danger of explosive gas and explosive mixture formed by vapor and air in factories. All electrical product accessories of this product must have the same explosion-proof certificate as the explosion-proof hoist. It is strictly forbidden to use the explosion-proof hoist to lift and transport personnel. Explosion-proof hoist model representation method Example of model marking: In an explosive gas environment, the explosion-proof mark is EX d IIC T4 Gb . The rated lifting capacity is G=10 tons. Standard building height lifting height H=9 meters, explosion-proof chain with the working level of M3, electric hoist model marked as HYBDB10-9 M3 EX d IIC T4 Gb Q/LA0003-2014. Scope of application for explosion-proof hoists 1. HYBDB series explosion-proof chain electric hoist products can be installed on the I-beam track, and the electric running...

Jib Crane Foundation Technical Requirements

Foundation Technical requirements before installation of jib crane track beam The strength grade of the concrete leveling layer of the jib crane is C30, and the thickness is 30～50 mm. The concrete leveling layer should be checked before construction according to the requirements of the track beam installation deviation, if it does not meet the requirements, then the track beam should be adjusted. According to the measured elevation of the track beam surface, determine a suitable control elevation of the top surface of the concrete leveling layer, and set a reference point for controlling the elevation every 214～310 m on the track beam. Measured by instrument, the cantilever crane adjusts the elevation of the reference point, sets out the leveling layer of the top surface elevation of the baseline, and then installs the template, clears the top surface of the track beam, and bolt holes in the debris, and bolt holes in the upper mouth blocking, sprinkle water wetting can be poured after concrete. The leveling layer top surface must be leveled and compacted, there shall be no stone exposed and uneven phenomenon, and do not allow the use of cement mortar on the surface or another leveling method. Cantilever...

Bridge Crane Brakes and Protective Devices

The brakes of bridge cranes are usually used to control the crane’s movement when it stops or decelerates, and are important components to ensure its safe and reliable operation. Bridge cranes are usually equipped with a various protective device to ensure operational safety and long-term reliability of equipment. The following is an overview of the working principle of bridge crane brakes and bridge crane protection devices. Bridge Crane Electric Brakes Bridge cranes usually use electric motors as the main driving force, such as electric motors for hoisting mechanisms and trolley mechanisms. Electric brakes are mainly used to control the movement of motors when they stop or decelerate. The working principle includes generating braking torque by controlling the electromagnetic field to stop or decelerate the rotating parts of the motor (such as the rotor) to a safe operating speed. Bridge Crane Electromagnetic Brakes Electromagnetic brakes work on the electromagnetic principle. When current passes through the electromagnetic coil, electromagnetic force is generated to press or clamp the brake body (such as the brake disc), thereby braking the rotating parts. When the motor stops or decelerates, the electromagnetic brake automatically acts to prevent further movement of the motor, ensuring that the crane can...

Questions about Electric Chain Hoist Crane

How do you think you could perform an operation test on an electric chain hoist crane before you use it? Press the down button to allow the chain hoist crane to descend until the limit spring touches the limit switch, and the motor will stop automatically. Press the up button until the chain is completely recovered into the chain bag and the motor stops running. Test the emergency stop switch function: press the up or down button at will, and press the economic stop switch at the same time to check whether the hook understands the stop action when the economic switch is pressed. When the emergency switch is pressed, there will be no response when other buttons are pressed again. Check the lubrication of the lifting chain (the load chain has been lubricated before leaving the factory, but it may dry during transportation). Any lubricant can be used to lubricate the chain. It is recommended that you keep a small amount of lubricant in the chain bag so that the chain in the chain bag can be immersed in the lubricant. Check the directionality of the chain. All welding points should be in the same direction. Only when all...