Overhead cranes-buy stable cranes Chunhua Group is your trusted choice
Overhead cranes-Buy stable and reliable cranes Chunhua Group is your trustworthy choice. Hefei Chunhua Crane Machinery Co., Ltd. is a company specializing in overhead cranes. Pursue the "quality first, credit first, service first" business philosophy. We have a high position in the crane industry by virtue of "good products, broad sales channels and good business reputation". The reliable and stable cranes supplied are sold in Beijing; Shanghai; Tianjin; Chongqing; Shandong; Jiangsu; Sichuan; Hebei; Hainan; Hunan; Shanxi; Anhui; Guangxi; Henan; Jilin; Guangdong; Liaoning; Hubei; Jiangxi; Zhejiang; Qinghai Gansu; Guizhou; Shaanxi; Tibet; Ningxia; Fujian; Inner Mongolia; Yunnan; Xinjiang; Heilongjiang, received praise from customers.
Chunhua Group pursues the business tenet of "winning the market with service and winning customers with quality", and strives to create valuable and stable bridge cranes for customers. The company has a sound quality inspection system, optimized production processes, and strived to build for customers. The company is positioned to be close to customer-oriented enterprises. The bridge cranes produced are well used by medium-sized enterprises and national key engineering projects. They are guided by industrial needs in marketing, design and development, and company operations. Expect. Create value for customers through technological innovation and provide customers with differentiated products and services.
The gantry crane can be classified according to the structure of the door frame, the form of the main beam, the structure of the main beam, and the type of use.
Door frame structure
Divided into gantry cranes and cantilever gantry cranes
1. Full-port crane: the main beam has no overhang, and the trolley is carried in the main span;
2. Semi-gantry crane: The outriggers have a height difference, which can be determined according to the civil requirements of the site.
Cantilever Gantry Crane
1. Double cantilever gantry crane: the most common type of structure, the structural force and the effective use of the site area are reasonable.
2. Single cantilever gantry crane: This type of structure is often selected due to site constraints.
Single main beam
The single girder gantry crane has a simple structure, is convenient to manufacture and install, and has a small mass. The main beam is mostly a deviating box structure. Compared with the double girder gantry crane, the overall stiffness is weaker. Therefore, this form can be used when the lifting capacity Q≤50t and the span S≤35m. Single main beam gantry crane door legs are available in L and C types. The L-type is easy to manufacture and install, has good stress, and has a small mass. However, the space for lifting goods through the outriggers is relatively small. C-type feet are made to be inclined or curved, the purpose is to have a large lateral space, so that goods can pass through the feet smoothly.
Double main beam
Double girder gantry cranes have strong bearing capacity, large span, good overall stability and many varieties, but their own quality is larger than single girder gantry cranes with the same lifting weight, and the cost is higher. According to the structure of the main beam, it can be divided into box beam and truss. Generally use box-shaped structure.
Main beam structure
The structural form made by welding angle steel or I-shaped steel has the advantages of low cost, light weight and good wind resistance. However, due to the many welding points and the defects of the truss itself, the truss beam also has the disadvantages of large deflection, small stiffness, relatively low reliability, and frequent inspection of welding points. It is suitable for sites with lower safety requirements and smaller lifting capacity.
The steel plate is welded into a box structure, which has the characteristics of high safety and high rigidity. Generally used for large tonnage and super large tonnage gantry cranes. As shown on the right, Mghz1200, with a lifting capacity of 1200 tons, is the largest gantry crane in China. The main beam adopts a box beam structure. Box girder also has the disadvantages of high cost, heavy weight, and poor wind resistance.
3. Honeycomb beam
Generally referred to as "isosceles triangle honeycomb beam", the end face of the main beam is triangular, with honeycomb holes on the oblique belly on both sides, and chords on the upper and lower sides. Honeycomb beams absorb the characteristics of truss beams and box beams, which have greater rigidity, smaller deflection, and higher reliability than truss beams. However, due to the use of steel plate welding, the weight and cost are also slightly higher than the truss beam. It is suitable for the field or beam field with frequent use or heavy lifting capacity. Because this beam type is a patented product, there are fewer manufacturers.
Chunhua Group has been developing in the industry for many years. From the scale of a few years ago to today's large-scale operation, the company has been in a stable and mature development stage. The company's bridge crane products have also been well received by users; stable product performance, one machine one yard, all crane products are exported to Beijing; Shanghai; Tianjin; Chongqing; Shandong; Jiangsu; Sichuan; Hebei; Hainan; Hunan Shanxi; Anhui; Guangxi; Henan; Jilin; Guangdong; Liaoning; Hubei; Jiangxi; Zhejiang; Qinghai; Gansu; Guizhou; Shaanxi; Tibet; Ningxia; Fujian; Inner Mongolia; Yunnan; Xinjiang; Heilongjiang; logistics to ensure fast product transportation At the same time, it also has high security. Product quality is good, cost-effective, is a good product trusted by the majority of industry.
I. Model Standard
Overhead cranes are represented by four main elements: code, rated lifting weight, span, and working level.
Second, single girder bridge crane
Its symbols are: MDG, MDE, MDZ, MDN, MDP, MDS.
Such as: MDN—Single Girder Single Trolley Grab Hook Gantry Crane;
MDS—Three-purpose portal crane with single main beam trolley.
Third, double beam bridge crane
Its symbols are: MG, ME, MZ, MC, MP, MS.
For example: MG—Double beam single trolley hook bridge crane;
ME—Double beam double trolley hook bridge crane
Overhead cranes-Buying stable and reliable cranes Chunhua Group is your trustworthy choice. Services are one-way and communication is two-way. It truly satisfies the customer's prior and potential needs, and advocates to move customers more. Hefei Chunhua Crane Machinery Co., Ltd. abides by contracts, keeps promises, and maintains good reputation of the enterprise. Sincerely look forward to mutual trust and mutual development with all friends for common development. Good sales are the golden key to the market. Our company strives to develop the market, expand the sales scope, and further provide customers with better bridge crane products and services. Welcome calls, and are willing to join hands with the new and old customers to create a better tomorrow.
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