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Shandong Huaxia tower crane

Shandong Huaxia tower crane

Shandong Huaxia tower crane, registered and established in Shandong / Weihai City in 1985, is now relocated to Linyi. Our company operates tower cranes in the mode of production and processing; Piling machine; Mixing station; Construction elevator; Tower crane, the processing method is incoming processing, the processing technology is machining, other mechanical hardware technology, assembly, and the service field is machinery; Hardware has more than 1000 employees and a registered capital of 90 million yuan. If you are interested in our products, technology or services, you are welcome to call or come to consult at any time.
Linyi Huaxia heavy industry

Linyi Huaxia heavy industry

Linyi Huaxia heavy industry mainly deals in Huaxia tower crane, QTd, QTP, QTZ, tower crane, elevator, tower crane, material machine and other products. Linyi Huaxia heavy industry of company independently develops hydraulic jack up tower crane, flat head tower crane, tower crane, QTd and other products with 8 technical patents. A good product (QTd tower crane, QTP elevator,Linyi Huaxia heavy industry ) is like a perfect movement, which requires our wholehearted investment, From raw material purchase to semi-finished product processing and later quality inspection All of them embody our painstaking efforts.
Huaxia tower crane

Huaxia tower crane

The special page of Huaxia tower crane provides you with the product information of various crane types and accessories of Huaxia tower crane, including the price, pictures and other information of Huaxia tower crane, which helps you choose better Huaxia tower crane products. Huaxia tower crane provides enterprises with product information of various crane types and applicable objects of accessories, including Huaxia tower crane price, pictures and other information, here to help you choose better Huaxia tower crane products.
5015 tower crane

5015 tower crane

5015 Tower crane is the most commonly used lifting equipment on construction sites. The extension (height) of each section (hereinafter referred to as "standard section"). It is used to lift construction raw materials such as steel bars, wooden beams, concrete and steel pipes. The function of the 5015 Tower crane is to bear the upper load transmitted by the jib pull rope and the balance arm pull rope, and directly transmit 5015 Tower crane to the tower structure through the rotary tower, turntable, bearing seat and other structural components. 5015 Tower crane ;50 represents the boom length of 50 meters, and 15 represents the maximum lifting capacity of the boom tip of 1.5 tons.
QTZ250 (7030) tower crane

QTZ250 (7030) tower crane

Model QTZ250 (7030) tower crane with lifting torque of 250tm.Tower crane: the boom form of tower crane is divided into horizontal type and pressure bar type. When the boom is horizontal, the truck runs along the horizontal boom and the luffing motion is balanced. The boom is long, but the boom weight is large. When the boom is of compression bar type, the luffing mechanism leads the boom to pitch luffing. The luffing motion is not as stable as the horizontal type, but its self weight is small. The lifting capacity of the tower crane varies with the amplitude. The product of lifting capacity and amplitude is called load moment, which is the main technical parameter of this crane. Through the slewing mechanism and slewing ring, the tower crane has large lifting height and large inertia mass of slewing and walking, so it needs to have good speed regulation performance. In particular, the lifting mechanism is required to be fast under light load, slow under heavy load and micro motion in place. Generally, in addition to resistance speed regulation, eddy current brake, frequency modulation, pole changing, thyristor and electromechanical combination are often used for speed regulation.
QTZ40 tower crane

QTZ40 tower crane

QTZ40 tower crane is a new type of tower crane for construction. The machine is in the form of horizontal boom, trolley luffing and upward rotary hydraulic jacking; The working range is 45m-2m; The lifting capacity is 4T at quadruple rate and 2T at double rate; The rated lifting moment is 400kN m; The lifting height is 35m for independent use and 100m for attached use.     
Qtz50 Huaxia heavy industry

Qtz50 Huaxia heavy industry

Tower crane QTZ: refers to jack up tower crane. 50 indicates boom length, 50m; There are two main parameters expressed by tower crane model: one is the rated lifting torque, and the other is the maximum boom length and boom end lifting weight. Introduction to typical preparation method: the numbering method specified in the standard is implemented according to zbjo4008. The model composition of tower crane in China is: class group code + form + characteristic code + main parameter code.    
QTZ63 Linyi Huaxia Heavy Industry Co., Ltd

QTZ63 Linyi Huaxia Heavy Industry Co., Ltd

QTZ63 tower crane: it belongs to engineering machinery, and its model is represented by capital letters of Chinese pinyin. Q refers to crane, t refers to tower type, Z refers to jack up type, 63 refers to rated lifting torque of 630kn Meters. QTZ63 tower crane is also called tc5610 tower crane. QTZ63 tower crane is a multi-purpose tower crane with horizontal boom, trolley luffing, up slewing and self elevating fixed. It is widely used in the construction of high-rise hotels, residential buildings, high-rise industrial buildings, long-span factories and high tower buildings. It can also be used in the handling and loading and unloading operations of ports, docks and freight yards.  
QTZ80 elevator

QTZ80 elevator

It is the different naming of tower crane in different periods: QTZ: a common saying in the 1980s, Q refers to steel material (generally Q235), t refers to tower crane (mostly tower top type), and Z refers to jack up type, Pt: the naming method appeared in recent years. P refers to flat head (without tower top), t refers to tower crane, and 80 refers to lifting torque of 800 kn M 5510 is a front end crane with a 55m boom of 1t. The rated lifting torque is 80tm, and the nominal torque cannot be seen only by looking at this parameter. QTZ80 is only a parameter range during declaration, and its lifting torque is 80 ~ 100tm (excluding 100tm).
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Industry Dynamic

Features of Wholesale QTD 160 tower crane

Features of Wholesale QTD 160 tower crane

The boom form of Wholesale QTD 160 tower crane is divided into two types: horizontal type and pressure rod type. When the boom is horizontal, the load trolley runs along the horizontal boom to luff, and the luffing movement is balanced.
2022-08-10
Wholesale QTD 160 tower crane

Wholesale QTD 160 tower crane

Bottom-rotating Wholesale QTD 160 tower crane: The slewing bearing is installed between the base and the turntable. Except for the traveling mechanism, other working mechanisms are arranged on the turntable to rotate together.
2022-08-04
About

About "Ten Not Hanging" in the Use of Tower Crane

  Tower cranes are widely used as vertical transportation machinery in construction operations, and have become indispensable construction machinery in construction. As a large-scale construction machine, the analysis has the following characteristics from a safety perspective: 1. It usually has a huge structure and a relatively complicated mechanism, which can complete one lifting movement, one or several horizontal movements.   2. There are many kinds of heavy loads, and the load is variable.   3. It needs to be operated directly in a large range, and the activity space is large.   4. There are many exposed and moving parts, and often come in direct contact with lifting operators (such as hooks, wire ropes, etc.), which has many potential risk factors.   5. Complex operating environment.   6. It is often necessary for multiple people to cooperate to complete an operation.   The existence of many of the above-mentioned risk factors determines that there are many accidents of lifting injuries, and once an accident occurs on the tower crane, not only the property loss but also the personal injury most of the time, the impact is greater, so it has been classified as special equipment management. The manufacturing, installation, use, and maintenance of the company have issued relevant specifications and regulations. The relevant departments or units have summarized the "ten no lifting" regulations for lifting operations as long as they adhere to this "ten no lifting" "In principle, tower crane accidents can be avoided to the greatest extent. However, in the actual production, there is no scientific, specific and practical version of the "ten-no-hang", and there are no special provisions in the relevant specifications of the tower crane. This article attempts to analyze and summarize the various versions of our site and various specifications of tower cranes, and on this basis, put forward specific regulations on the "ten do not hang" tower cranes for your reference.   Now lists the relevant "ten not hang" circulated in our place as follows:   1. The tower crane "Ten No Cranes" in the book "Safety Management System for Construction Sites" issued by Chengdu Safety Supervision and Management Station:   1. Someone staying or walking under the boom and lifting heavy objects is not allowed to hang.   2. The hoisting command should be performed by full-time personnel qualified in technical training. No command or unclear signal is not allowed to hoist.   3. Slender materials and multiple objects such as steel bars, steel bars, pipes, etc. must be tied firmly, and the single-headed "kilogram" or untied strapping is not allowed to hang.   4. Perforated plates, hoppers, and hand-pull dump trucks do not require four-point or large template plug-in plates, and are not allowed to hang when unloading armor cranes. Prefabricated reinforced concrete floor slabs are not allowed to be double-slung.   5. Hanging blocks must use safe and reliable block fixtures. Hanging bricks must use brick cages and be neatly stacked. Wooden bricks, embedded parts and other sporadic objects should be stably stacked with containers.   6. Floor, girders and other hanging objects are not allowed to hang.   7. Sheet piles, well point pipes, etc. buried in the ground, as well as sticking and adhering objects are not allowed to hang.   8. Multi-machine operation should ensure that the distance of lifting heavy objects is not less than 3m. When operating on multiple machines on the same track, it is not allowed to hang without safety measures.   9. Strong winds above level 6 are not allowed to hang.   10. Hanging heavy objects or exceeding mechanical allowable load is not allowed to hang.   The first of the above, "Someone stays or walks under the boom is not allowed to hang". This is definitely unavoidable in the construction site, because when the crane crane rotates, it almost covers the entire site, under the boom. There must be someone who stays or walks; "there is a person who stays or walks under the suspended heavy object and is not allowed to hang" is already contradictory. If it has already been lifted, it is required that it is not allowed to be hung, so this is meaningless. In the fourth article, the hopper is probably a special hopper that is equipped with the tower crane. This must be lifted at four points, but the hand-overturned hopper truck is afraid that it is forbidden to be used for lifting materials, so this article should also be modified; the rest of the articles are only It illustrates some particularities, not completely.   Second, the tower crane "Ten No Cranes" in "Migrant Workers Night School Reader" from Chengdu Safety Supervision and Management Station   1. Overload and oblique pulling are not allowed to hang.   2. The bulk goods are too full or the strapping is not allowed to hang.   3. No command, disorderly command and unclear command signal.   4. The edge of the hanging object is sharp and ther
2020-05-05
Several factors causing the accident of tower crane

Several factors causing the accident of tower crane

  Due to the particularity and structure of the tower crane, its safety concealment exists in many factors such as installation, use, management, natural environment and so on.   (1) The structure of the tower crane itself   The rigidity, stability and strength of the tower crane steel structure directly affect the safety of the tower crane. Because the crane is subjected to frequent alternating loads during the operation, it is very easy for the steel structure friends to fatigue and break the maple. For example, cracking of the welding seam of the tower crane web, fracture, deformation, and bending of the base material reduce the rigidity, stability, and strength of the structure, cause the steel structure to break thinly, and destroy the local stability of the steel structure. Introduce friends accident.   (2) The quality of electrical systems and institutions   The working mechanism of the tower crane adopts electrical movement and control. The advantages are convenient control, saving cost and low cost. At the same time, electrical components are easy to achieve standardization and generalization, easy to replace and maintain, and easy to realize various safety protections. The working state of the electrical system of the organization determines the reliability, safety and performance of the tower crane. If there is damage or abnormality. It may cause an accident. If the electrical system fails, it can cause shock vibration of the mechanism, resulting in broken shafts and broken teeth and attracting friends. Damaged clutches or brakes or vector control may cause crashes and heavy objects. Aging electrical insulation or broken cabinets may cause electric shock. The failure of various safety devices may lead to accidents such as falling towers, folding arms and falling heavy objects. If the amplitude limit or travel limit is invalid, it may cause a big car or a small car to rush and even derail. The overload limiter and torque limiter fail, and the arm and tower may fall.   The failure of the height limiter may cause the wire rope to overwrap into broken rope and fall accidents of heavy objects. Phase sequence protection vector rescue, in the case of wrong phase and broken phase. It may cause disorder of operation instructions and cause accidents.   (3) Human factors   In many tower crane accidents. Most accidents are due to user violations or misuses. The two accidents mentioned below also have elements of illegal operations.   A non-driver of a certain unit does not ring the bell to drive. As a result, the extravagant workers on the track were crushed. When the installation team of a machinery construction company inspected the TQSOB tower crane, in order to replace the boom puller, it was prepared to remove the balance weight first and then replace the pull plate pin to connect the boom and the lifting rope together , And then use the car to lift the boom. Open the boom pull plate pin. When lowering the boom, the backward tilting moment due to the balance weight is very large, causing the tower crane to lose its balance and causing the balance arm and the tower tip to fall together.   Accident during disassembly. Due to the high weight of the metal structure of the tower body, the disassembly and assembly of the tower crane is a high-altitude operation, which is dangerous and technical. Among the tower crane accidents, the accidents during the disassembly and assembly account for a considerable proportion, and they are relatively large accidents. Some tower cranes are not disassembled by professional installation teams but by non-professionals. Due to the low quality of the installation personnel, the ability to prepare installation plans, the ability to select schemes and mechanical calculations, and the ability to formulate scientific disassembly and assembly, so that new problems or special problems in the operation process cannot be solved, something happened   is inevitable. The quality of some installations is substandard, leaving hidden dangers.   Improper management. Insufficient training of the staff, insufficient understanding and implementation of various rules and regulations, and insufficient management of the work site have all laid hidden dangers for the accident. Some enterprises have unsound systems and staff have no rules to follow, so they have to rely on personal experience to operate and are prone to making mistakes. Some enterprises do not implement special personnel planes. In addition, different factory models have different operation handles. Therefore, it is possible for the driver to make mistakes; some work sites temporarily combine some staff for work needs, making it difficult for the commander, driver, and rigger to achieve   The industry is coordinated, and some non-professionals or leaders temporarily act as operating personnel, which will inevitably lead to errors and accidents; some companies do not pay attention to maintenance management and fail to eli
2020-02-04

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Huaxia Heavy Industry:

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Linyi huaxia:

0086-0539-6015699

Technical consulting:

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0086-0631-5999018

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0086-0631-5993999

Zip Code:264205

Contact Us

Outgoing telephone:0539-6015699/0631-5982999

Huaxia Heavy Industry:+86-0539-6015699(Domestic)

After-sales service:+86-0631-5980999/5982299

Hotline Fax:

+86-0631-5987519(Domestic)

+86-0631-5999076(Foreign)

Corporate Mailbox:huaxia12007@163.com

Company Address:Huaxia Road, Weihai, Shandong Province

Linyi huaxia:0086-0539-6015699

Technical consulting:0086-0631-5986868

Accessories sales:0086-0631-5999018

Anti-fake Supervision:0086-0631-5993999

Zip Code:264205

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