Double girder overhead crane is widely used for transferring material, goods, equipm ent installation and maintenance in factory, power station, storeroom, warehouse etc. It can be divided into following types according to different use standards. As a professional cranes supplier, AIMIX Group provides kinds of double girder bridge cranes with high quality and low prices to meet customers’ needs.
Advantages of our double girder crane
1.High stability and design rigidity
- Torsionally digid
- Connections between the girders and end trucks are designed and produced according to precise machined tolerances for minimum wear
- Great travel features and minimun wear due to low-maintenance drives
- Travel wheels has self-lubricating properties
- Low deadweight reduces cost-crane girders made of computer-optimized box sections
- Rope hoist helps reduce operating cost due to extended service life classification.
- Reliable monitoring and preventive maintenance due to advanced technology.
3.Efficiency and performance
- Control pendent suspended for separate travel on the crane girder
- Power supply to the trolley via high-flexibility flat cable with protective ground conductor
- Optional radio control with display and proportional pushbuttons
4.Customized service and modular design
- Our company provides additional options and customized system integration
What is double girder bridge crane with hook?
This kind of double girder overhead crane adapts to mine, factory, warehouse indoor and outdoor for general loading, unloading and transferring work. Two working classes are included: medium class and heavy class. Crane of medium class is suitable to machinery processing, metal structure, assembly; crane of heavy class is suitable to smelting workshop and continuous lifting work for heavy duty. When lifting dangerous goods and scorching hot liquor, the lifting crane should be equipped with double-brake system.
Requirements of crane application
- Control by pendant switch
- Control via interactive radio control with proportional pushbuttons
- End carriages with horizontal guide rollers to accomodate unique runway requirements
- Limit switches or slack rope relays protect the hoist and load from damage
- Zone control system prevents collisions with obstacles along the trolley and bridge travel paths
- Anti-collision protection and crane distance controls ensure the safe operation of several cranes on one runway
- Cranes can be fitted with two trolleys with simultaneous/independent control for handling of long and non-standard loads
- Full-length walkways and maintenance platforms available
When to use grab overhead cranes?
Grab overhead crane is often used in metallurgy, chemistry, cement and other enterprise’s warehouse and factory, or work on lifting bulk material such as ore, limestone, coal, sand under fixed span indoor and outdoor. It is called workstation crane. The grab system is flat grab with double drum (four ropes). The grab can close and open at any height. When grabbing solid block more than 60mm, the grab with gear is needed. The grab is suitable for bulk material under the condition of natural accumulation. If grabbing material in the water, special description is necessary. Rated lifting weight of grab overhead include the weight of grab itself and the weight of lifting material.
What is electromagnetic travelling crane?
Electromagnetic crane with detachable magnetic disc is suitable to steel market and cutting workshop. It is also used frequently for loading, unloading and lifting black metal products and material with magnetic permeability. The crane system includes box type bridge frame, travelling crane system, trolley, electrical equipment and magnetic disc. Complete mechanism is operated inside crane cabin. When using outside, the machine is equipped with anti-rain device. The magnetic disc is charged directly through cable reel on the trolley. The rated lifting weight of electromagnetic cranes refer to the weight of magnetic disc and the weight of lifting material.
Metallurgic crane for sale
It applies to lifting work in smelting workshop and has high work class for heavy duty. Due to lifting liquid metal, it is required that when one site of electric motor doesn’t work, another electric motor can continue for a work-process. Its rated lifting weight is the total amount of lifting steel ladle and molten steel. The hook of first vice lifting mechanism can be used together with main hook to pour out the molten steel and steel slag or can be used alone to lift material. Main lifting mechanism with four wire ropes is much better, because when one wire rope or two wire ropes on the diagonal line brake, it can also unload the heavy material on the floor.
Dual-purpose hoisting crane for sale
Dual-purpose overhead cranes include grab-magnetic type and grab-hook type. In order to improve the productivity, the trolley is equipped with hook and grab or magnetic disc and grab. But only one kind of lifting device can be used in every work cycle.
Three-purpose overhead cranes for sale
This kind of crane includes detachable magnetic disc, grab with motor and hook. Three lifting devices can exchange for transferring finished products, bulk material or magnetic metal material. But only one type can be used each time.
What is explosion-proof crane with hook?
Overhead explosion proof crane applies to factory and warehouse with flammable and explosive mixture, usually works on general transferring duty. Explosion proof classes have two major categories: I class refers to mine crane; II class refers to factory crane.
Its electric motor is explosion-proof, some explosion proof measures are also taken for mechanical parts so that crane in the work avoids producing spark, bringing fire or explosion accident. All electric motors are marked with “EX”. Explosion proof class of the crane should be chosen based on the classification of hazardous substances. There are four classes of explosion-proof as following: I、IIA、IIB、IIC. The voltage of I class is from 660V-1140V, the voltage of II class is 380V. Factories often use IIB class and IIC class( Exd IIBT4/ExdIICT4).
How to make two- girder cranes insulated?
Overhead cranes with insolation are widely used in aluminum and magnesium electrolytic workshop. They apply to aluminum electrolytic factory with low voltage and high currency. To avoid that the charged objects are transferred onto crane system through lifting device and endangering the life safety of crane operator, so several insolation devices are set on cranes’ three positions. Three positions include the place between overhead crane hook and pulley, the place between lifting mechanism and trolley frame, the place between trolley frame and crane system.
Where to purchase heavy duty double girder overhead crane
Low price double girder overhead crane is one of those purchases that you will know has to be made with careful precision. You cannot just put in thousands of dollars into a machine that is not going to help you with the project that is coming up on site.
You want to have it be able to come in and do what a crane is supposed to do, and that is working hard and lifting heavy.
Let’s say you want to get the double girder overhead crane, where do you go? Let’s take a look.
Understand project needs
What are your project needs? You can’t just get a double girder overhead crane and assume it is going to be okay. You need it to do a particular task, and that is only going to happen when you are aware of what that task is. Once you can pinpoint this, you are going to be able to take care of all of your project needs.
This is a simple part of the checklist you are going to have to make out.
Once you have the project needs down, the rest will be easier.
You want to look online as that is important too. When you are not looking online, you are going to get to a point where things fall apart. Be patient and see what is out there as soon as you can. You want to look online because a simple Google search is going to yield a lot for you.
It is going to show a list of local and international suppliers that you can make contact with to see what they are offering.
Get all of the information they provide and put it all in front of you as you make a choice.
Contact local companies first
You want to start close to home even if that might not be the best solution. You want to do this because you will have an easier chance of seeing the cranes in person. Now, if there is an option elsewhere, you are going to be able to bargain your way down when you have done your homework.
It is not just about getting to a good supplier; it is about paying a rate that is reasonable as well. You don’t just want a good crane that is going to cost you too much for the job.
The projects that you are going to be running will require the double girder overhead crane to be in top shape, and that is all you are going to expect of it. If that is what you are going for, the reality is that you are going to need the best possible crane in the world.
If that is what you need, the right supplier is important nad being able to find the best option is critical. Once you do this, you will get a crane that is going to handle your project with the utmost of ease.
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