On September 15th the first order by our customer in Bangladesh is one set 6.5t+6.5t double girder upper rotating overhead crane, span 25.5m, A7 working duty. The steel warehouses only have one set crane, so this crane is very busy, the crane works at least 12 hours a day, sometimes for 16 hours. The crane has been running smoothly for 3 months so far. They are very satisfied with our products. So they bought a new 10t double girder overhead from us, and now we already the installation and test.
Pictures of Double Girder Overhead Crane Sale to Bangladesh
Advantage of Double Girder Overhead Crane Sale for Bangladesh
1. The double-girder bridge machine has good sealing performance. The guide chain segment adopts a fully enclosed design to ensure a clean environment for the engagement of the chain and the chain guide seat;
2. The reverse brake is adopted to improve the performance of the brake and prolong the service life of the brake, so that the bridge machine can adapt to the high temperature and high humidity environment within a certain range;
3. The brake clutch gearbox is free of maintenance for ten years, reducing the number of maintenance and reducing the maintenance cost of the bridge machine;
4. Equipped with cylindrical asynchronous motor, with high power and sufficient power. Its wiring stability rate is high, and it can adapt to frequent opening and braking conditions; 5. The lifting speed is faster and the operation level is higher, which fully meets the customer’s production rhythm and production intensity requirements;
Double-speed electric hoists and single-speed electric hoists are two types of wire rope electric hoists. Double-speed electric hoists and single-speed electric hoists are two types of lifting devices that are widely used in various industries. They have different advantages and disadvantages depending on the application and the requirements of the users.
The Main Difference Between Double-speed Electric Hoist and Single-speed Electric Hoist
The representative of the double-speed electric hoist is the MD1 type wire rope electric hoist, which has two speeds constant speed and slow speed. The structure of the main and auxiliary motors realizes two-speed performance. Double-speed electric hoists are equipped with two-speed motors that can adjust the lifting speed according to the load and the working conditions. They can operate at a high speed when the load is light or when the lifting distance is long, and at a low speed when the load is heavy or when the lifting precision is high.
The main motor is at a constant speed, and the auxiliary motor is at a slow speed. An independent slow-speed mechanism is composed of an auxiliary motor, intermediate gear, and main motor brake disc with gear. They generate friction when the brake wheel of the main motor is braked. Connected into a double motor unit. This feature allows them to improve the efficiency and accuracy of the lifting operation, as well as to reduce the wear and tear of the components and extend the service life of the hoist. Double-speed electric hoists are suitable for applications that require frequent lifting, variable loads, high precision, or long distances. Double-speed electric hoists are often used in assembly workshops, and the slow speed can make the lowering position more accurate and the lifting product more balanced.
The working principle of the double-speed electric hoist is as follows: when the main motor is connected to the power supply, the motor rotor overcomes the pressure of the brake spring and produces an axial displacement, so that the brake wheel is disengaged from the brake disc of the slow-speed mechanism, and the main motor runs normally. , the mechanism lifts or descends at a constant speed. After the power supply is cut off, the brake wheel of the main motor is reconnected with the slow-speed mechanism under the action of the brake spring. When the auxiliary motor is connected to the power supply, the shaft of the auxiliary motor also produces axial displacement, and the brake of the auxiliary motor is opened. The main motor brake wheel is driven by the reduction gear, the main motor rotates together, and the mechanism lifts or falls at a slow speed.
Single-speed electric hoist refers to a hoist with only one lifting speed, which is constant speed, and its lifting speed is different according to the tonnage. The indicated model is CD1. Single-speed electric hoists are equipped with single-speed motors that operate at a constant speed regardless of the load or the working conditions. They are simpler and cheaper than double-speed electric hoists, but they also have some limitations. They cannot adjust the lifting speed according to the load or the working conditions, which may result in lower efficiency, lower accuracy, higher energy consumption, or higher noise levels. Single-speed electric hoists are suitable for applications that require infrequent lifting, stable loads, low precision, or short distances.
As a commonly used lifting equipment, electric single-girder overhead crane is a kind of lifting equipment that is used more in workshops. It can be used in machinery manufacturing, assembly, warehouse and other places with low frequency of use or few times of rated lifting capacity. For most of the production needs of enterprises, it can be said that the production of enterprises is inseparable from single beam overhead cranes.
So what are the advantages of single girder overhead cranes?
1. The price of single beam overhead crane is favorable.
The structure of the single-girder crane is relatively simple, mainly including a main beam, two end beams, and an electric hoist. Its simple structure and operation make its price very favorable. A single-girder crane can often be installed for tens of thousands of dollars.
2. The single girder crane is easy to operate.
The electric single-girder crane is very convenient to use in operation. Generally, there are 6 direction keys to control the lifting direction, which is intuitive and easy to understand. And it does not need to obtain a special equipment operation certificate, and it can be operated after training.
3. The single beam crane has stable performance.
Because the structure of the single-girder crane is relatively simple, its performance is relatively stable, and the probability of failure is relatively low.
4. The single-girder overhead crane has strong environmental adaptability.
There are various models of single-girder cranes, and the appropriate model type can be selected according to the user’s operating environment. Single girder cranes can be divided into single girder overhead cranes, suspension cranes, low headroom cranes, explosion-proof single girder cranes, metallurgical single girder cranes and other types.
Electric single-girder bridge cranes generally use wire rope electric hoists or electric chain hoists as lifting mechanisms to meet the different needs of customers.
The advantages of single-girder cranes make it a favorite lifting equipment for users. It is well received and relied on by many users. Welcome to inquire.
2. Structure drawing of electric single girder crane
You May Need to Know about the Single Girder Overhead Crane
The size of the electric single-girder crane is calculated and designed according to the tonnage of the crane, which can fully meet the customer’s use requirements. The customer can also reasonably build the workshop according to the drawing and the technical parameter table of the electric single-girder crane. The best use of factory space.
3. What are the common tonnages of single beam cranes
Single girder bridge crane is a kind of bridge crane. Its main girder structure is a single girder, and an electric hoist is used as a hoisting mechanism to hang on the I-beam below the main girder to run left and right. Compared with double-girder cranes, single-girder cranes have the advantages of low price, convenient operation and convenient maintenance. It is the best choice for many companies. So what are the common tonnages of single girder cranes?
Generally speaking, the common tonnage of LD type single beam cranes are 2 tons, 3 tons, 5 tons, 10 tons, 16 tons, 20 tons, etc. These tonnages are relatively common in the production of enterprises, and the maximum tonnage of single beam cranes can reach 32 tons . However, single-girder cranes with larger tonnage are relatively rare, because their operational stability is not as good as that of double-girder cranes. When the lifting tonnage is relatively large, double-girder cranes are generally used.
The common tonnage of LX type single girder suspension overhead cranes are generally 1 ton, 2 tons, 3 tons, 5 tons and 10 tons. Because of its structural limitations, the maximum tonnage can only reach 10 tons, and it is not common.
The tonnage of the LB type explosion-proof single beam crane is generally less than 20 tons, and its working level is higher than that of the ordinary LD type single beam crane.
LDY type metallurgical single beam crane, according to relevant regulations, the maximum tonnage can only be 10 tons, and the metallurgical crane in the form of double beams needs to be used for more than 10 tons.
4. How wide can the span of a single girder bridge crane be?
The span of a single girder crane refers to the center distance between the two parallel cart tracks of the crane. Generally determined according to the width of the workshop, the commonly used span is 7.5 meters to 22.5 meters, the largest can be 40 meters, but this kind of large span is rare.
In the construction machinery industry, cranes are mainly used for logistics transportation of parts machining, structural parts pretreatment, welding lines, painting lines and final assembly lines. The streamlined production operation of construction machinery requires that the selection and arrangement of cranes can meet the needs of its complex and efficient production process. At the same time, the production concept of “everything for the final assembly” also puts forward strict requirements for the stability and reliability of the quality of the lifting equipment.
In the machining industry, the cranes that are widely used include single-girder bridge cranes, double-girder bridge cranes, semi-gantry cranes, cantilever cranes, electric flat cars and other lifting and transportation equipment. Enterprises can also complete special lifting operations by choosing appropriate lifting and spreaders.
Machinery manufacturing enterprises often choose the type of crane that suits them according to the structure of their workshop and the working area of the production line. Complex and complicated workshops often use a combination of various types of equipment to make better use of the workshop structure and maximize the production efficiency of the enterprise.
A variety of hoisting and transportation equipment enriches the production line collocation scheme of the enterprise. Through reasonable collocation, the production efficiency can be maximized and the labor cost of employees can be saved.
The Crane Hook is a spreader commonly used on overhead cranes and gantry cranes, also known as a hook group. Have you ever encountered such a problem when the crane hook is in use: when you use it, you will find that the wire rope will find the torque, which will cause the hook component to have a tendency to rotate. Yuantai introduces why this happens and how to deal with it?
No matter what type cranes, specification, or grade of wire rope used by cranes, torque will be generated when subjected to force. Torque is caused by the way the wire rope is made, first the wires are twisted together helically to form strands, and then several strands are twisted together again to form the rope. When the force is applied, the wire and the strand will be straightened, but the end of the wire rope is fixed during the hoisting operation, so that a torque is formed in the wire rope. Another source of torque is that the pitch of the wire rope becomes longer after a period of use, so that when the end is fixed, the wire rope generates torque without being stressed. The existence of torque makes the hook assembly tend to rotate. .
On the other hand, there are many external factors that directly cause the hook to rotate. For example, external forces such as manpower or wind force during the hoisting process push the hook to rotate. The crane driver’s operation is unstable, so that the hook and heavy objects swing, causing the hook to rotate. The method causes the hook to be unbalanced, causing the hook to rotate, etc.
The rotation of the crane hook often occurs without any warning in the equipment hoisting operation. When the crane lifts the heavy object, the hook rotates, and the wire ropes wrapped around the hook pulley block are twisted together, and the lifted heavy object is twisted together. It also rotates with the hook. At this time, it is no longer possible to continue to lift and lower the heavy objects that have been lifted. The rotation of the hook will affect the normal operation of the crane hoisting and seriously threaten the safety of operators and equipment, so it must be avoided.
The specific treatment method for the torsion of the crane hook:
(1) When the heavy objects are not high off the ground and the crane performance allows, the heavy objects can be lowered slowly, and then the hook can be screwed up.
(2) If the heavy object has been lifted high off the ground, you can only find a way to close the hook of the crane manually.
(3) After the hook rotation occurs, the torque in the wire rope should be released. The specific method is: put the hook on the ground, untie the fixed end of the wire rope, multiply the number of turns m of the hook rotation by the matching of the wire rope The number n is the base number k (it can be increased or decreased depending on the actual situation). According to the reverse direction of the wire rope twist, turn the end of the wire rope to release the torque, and then install the fixed end. Repeat the above steps by repeating the lifting and lowering hook a few times to check the effect.
Double-girder cranes produced by Yuantai Crane usually have two types of gantry double-girder and bridge-type double-girder. Bridge-type double-girder cranes are widely used in machining and assembly workshops, metal structure workshops, mechanical maintenance workshops, metallurgical forging workshops, and various warehouse lifting work, etc., and their frequency of use is high. Portal double beams are usually used in outdoor ports, docks, beam yards, freight yards and other occasions. At present, there are thousands of crane manufacturers in China. How to choose a manufacturer with good quality, low price and good service among the many manufacturers?
How to choose a double beam crane manufacturer
1. Check whether the double-girder crane manufacturer has relevant qualifications. Double-girder cranes are special equipment, and there are many models and types. For example, if you want to buy a 50-ton gantry double-girder crane, the manufacturer must first provide the production qualification and installation qualification of this model. If manufacturers do not even have these qualifications, they do not have the corresponding technology and capabilities. Yuantai Crane has the production and installation qualification certificate of 300-ton bridge gantry crane
2. The quality of the product lies in the configuration. In terms of configuration, you get what you pay for. If you have a sufficient budget, it is recommended to choose a good configuration. A good configuration can indeed save you a lot of maintenance and delay in production in the later stage.
3. Service is also a concern of customers. Customers can first understand the after-sales service content of each company. Manufacturers are selected after comparison. Usually, the maintenance period of the crane is one year. After the full maintenance period, the maintenance contract can be renewed, and the maintenance costs and accessories prices will also be listed in detail to ensure that the price is transparent, which is convenient for customers to compare and will not charge arbitrarily.
When choosing a double-girder crane manufacturer, one thing to keep in mind is that “you get what you pay for”, and you can’t buy good products at low prices.
When many customers buy double-girder cranes, they do not understand the lifting machinery and have no professional guidance. Then you can identify the quality of crane manufacturers through the above points, and come to Yuantai Crane to buy lifting equipment that suits you.
Crane is a hoisting machine installed in a steel structure workshop for lifting various heavy objects, which can greatly reduce the labor intensity of workers and is an indispensable equipment in industrial production. There are many types of cranes to choose from in the steel structure workshop, such as bridge cranes, gantry cranes, semi-gantry cranes, jib cranes, etc. Users can choose the appropriate type according to the site conditions.
Both ends of the bridge crane sit on tall concrete columns or metal supports, shaped like a bridge. The bridge of the bridge crane runs longitudinally along the track laid on the elevated on both sides, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and the largest number of hoisting machinery.
Gantry crane is a variant of bridge crane, also known as gantry crane. The metal structure of the gantry crane is like a gantry frame. Two feet are installed under the main beam, which can walk directly on the track on the ground. The two ends of the main beam can have outrigger cantilevers. If an overhead crane cannot be installed in the workshop, a gantry crane can be considered.
Semi-gantry crane is an intermediate type of bridge crane and gantry crane. One end runs on the crane beam of the factory building, and the other end runs on the ground track, which can use the site more efficiently.
The cantilever crane is a small-scale operation hoisting machine, suitable for lifting heavy objects in a fixed working area, and the lifting tonnage is generally small.
Allowable deviation of crane beam installation in steel structure workshop (mm):
Mid-span verticality of beam: h/500;
Lateral bending sagittal height: l/1500 and should not be greater than 10.0;
Vertical upper arch sag: 10.0
Center displacement of supports at both ends:
1. When installed on a steel column, the offset to the center of the corbel: 5.0;
2. When installed on a concrete column, the offset of the positioning axis: 5.0;
Offset between the center of the stiffening plate of the crane beam support and the column bearing stiffening plate: t/2;
Bridge cranes are mostly used in steel structure workshops. Users can also choose other types of cranes according to their own conditions, or use a combination of various types of cranes. Improve the production efficiency of enterprises.
1. The single girder overhead in Philippines price is favorable.
The structure of the single-girder crane is relatively simple, mainly including a main beam, two end beams, and an electric hoist. Its simple structure and operation make its price very favorable. A single-girder crane can often be installed for tens of thousands of dollars.
2. Simple operation of Single girder overhead crane in Philippines
The electric single-girder crane is very convenient to use in operation. Generally, there are 6 direction keys to control the lifting direction, which is intuitive and easy to understand. And it does not need to obtain a special equipment operation certificate, and it can be operated after training.
3. Single girder overhead crane has Stable performance
Because the structure of the single-girder crane is relatively simple, its performance is relatively stable, and the probability of failure is relatively low.
4. Strong environmental adaptability of Single girder overhead crane In Philippines .
There are various models of single-girder cranes, and the appropriate model type can be selected according to the user’s operating environment. Single girder cranes can be divided into single girder overhead cranes, suspension cranes, low headroom cranes, explosion-proof single girder cranes, metallurgical single girder cranes and other types.
Electric single-girder cranes generally use wire rope electric hoists or electric chain hoists as lifting mechanisms to meet the different needs of Philippines customers.
The advantages of single-girder cranes make it a favorite lifting equipment for users. It is well received and relied on by many users. Welcome to inquire.
jib cranes are the optimal lifting equipment for short transfer applications. DQCRANES can provide you the Wall Travelling Jib Crane, Pillar Jib Crane and Wall Mounted Jib Crane, etc. DQCRANES jib cranes can lift and transport materials in semi circles or full circles around their support structures to provide localized material handling in work cells, to supplement a large overhead crane system, to transfer materials from one work cell to another, and to lift a line load up to the rated capacity safely.
Above parameter just for your reference, free standing jib crane design can be customized according to your request.
jib-crane-for-sale
Freestanding Jib Crane Features & Benefits:
Precision tapered roller bearings in top pivot and trunnion assemblies provide smooth operation and long life.
Independent head assembly installed separately from the boom for easier installation.
These jibs and components are built and assembled with jigs and fixtures to ensure easy installation.
Recessed bearing assembly allows greatly reduced clearances needed for installation.
Bolted head/boom connection permits separate installation and provides maximum lift for the hoist.
In-head, totally enclosed, bottom entry collector assembly allows for the option of easily adding power to the hoist for 360 degree rotation at the time of or after purchase.
Optional power rotation makes moving heavy loads even easier.
Suitable for underneath traveling cranes, in open areas where it can serve several work stations, in outdoor applications such as loading docks, or in machining and assembly operations where it can be overlapped with other jibs to provide staged operation.
Allows operators to position loads precisely, effortlessly and efficiently.
Safety head retaining pin provides the resistance to accidental upward dislodgment of the head.
Wire Rope Hoists are often preferred over electric chain hoists for lifting heavier loads because they offer faster lifting speeds and lower headroom. They can also be rated for extreme duty service. Our wire rope hoists are very popular in Philippines. With capacities ranging from 1/8 ton to 500 tons.
Recently, Yuantai Crane shipped 2 sets 40ton CD Wire Rope electric hoists Sale to Philippines
Details of 40ton CD Wire Rope Electric Hoists Sale to Philippines
Model：CD Wire Rope Electric Hoist
Lifting Capacity: 40t
Lifting Height: 70m
Lifting Speed: 2m
Types of Electric Wire Rope Hoist Sale in Philippines
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3. CD Electric Wire rope Hoist Sale to Philippines
