Wanfeng Tower Crane

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Weihai Wanfeng Group is located in Manshan Town, Weihai City-Model Town of National Small Town Construction, where

traffic is convenient and industry is developed.
  Weihai Wanfeng Group, originally founded in 1995, is one of the first enterprises that restructured in Wendeng City

in 1997. The present group company was founded in 2003 and composed of four companies-Wanfeng Steel Structure, Wanfeng

Door & Window, Wanfeng Leasing and Yifeng Properties. It has 400 staff, fixed assets of about RMB70 million and land

area of 90,000m2. Main products include FO/23B, 7030, QTZ125, QTZ80, QTZ63, QTZ40 and QTZ315 series tower crane,

construction lifts and material elevator, as well as construction steel structure and high-grade aluminum-plastic doors

and windows. Its products are sold in more than 10 provinces and cities in China and over 20 foreign countries.
  Weihai Wanfeng Group is Top 10 Tower Crane Enterprises of Shandong Province, Top 100 Private Enterprises of Weihai

City, Top 20 Enterprises of Wendeng City, "AAA" Level Banking Credit Enterprise, Provincial-level Advanced Equipment

Management Unit, Provincial-level "Contract Honored and Promise Kept" Unit and Top 100 Provincial-level Honest

Enterprises. "Wanfeng" trademark was rated as Shandong Famous Brand, and Wanfeng tower crane is honored Shandong Brand-

name Product.
  Weihai Wanfeng Group has always been adhering to the business tenet of "quality first, credit first", regarding

customers as God and workers as source of development, paying attention to technology development, service and product

quality, introducing and innovating brand products, and injecting endless vigor and vitality to the company development.
  Weihai Wanfeng Group has strong technical force and excellent testing equipment. In 2001 it passed IS09001: 2000

Quality Management System Certification, and enhanced both management and service quality. With China's entry into WTO,

Wanfeng Group keeps an eye on the world development and continuously expands foreign markets. In 2004, its products

entered the international market, in 2006 took the lead to achieve license to enter the Russian market, and in 2007

passed CE certification and opened the door to the EU market, winning favorable opportunity for construction in foreign

market. With good reputation and services, our products attracted are more and more foreign customers.
  After nearly 10 years of development, Wanfeng Group has developed into an enterprise engaged in multi industries-

construction machinery, construction steel structure, building doors and windows, and real estate. The opening Wanfeng

Group always marches ahead.
Mr. Ma Shangquan, chairman of Wanfeng Group, said, "We serve your need, and promise to meet your satisfaction", and

welcomes cooperation with old and new customers to expand business opportunities and seek common development.
  The developing Wanfeng Group will continue to innovate and take part in market competition both at home and abroad

with confidence and determination, produce newer and better products based on self-encouragement and strict management,

and strive in the new century future development to accept the challenge.

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Q:Who is responsible for the construction of the pile foundation of the tower crane?
1, the pile foundation of the pile and tower crane foundation pile is not the same item, cannot pile foundation pile and tower crane foundation pile together to talk about.2, you did not say who is tower crane?. Who is responsible for the tower crane installation, including tower crane foundation construction.3, but, in fact, in most cases, the mechanical leasing company only provides technical requirements, providing tower crane foundation section. Piling and foundation concrete are the responsibility of the contractor.4, if the contract does not have a definite agreement on the construction of the tower crane foundation, the general contractor shall be responsible for the cost of piling the tower crane foundation. The piling Team can be the construction unit of the pile foundation, and also can be found by the general contractor.5, in the future tower crane foundation construction program should be clear about this matter, avoid controversy.These are only personal opinions.
Q:Construction tower crane operator certificate expires, how to verify?
Two, training contentThe crane safety regulations and operation management; classification and main parameters of the crane; the structure and the working principle and the safety protection device of lifting up; the installation and removal of heavy machinery; the whole debugging and acceptance of heavy machinery; the operational and command signal of lifting and repair; and maintenance of heavy machinery.Three, training hours and full-time training arrangement: 5 days, annual training enrollment.Four, training fees450 yuan / person, including registration fees, training fees, books, information, assessment, assessment fees, accommodation, self-care.Five, training certificationStudents complete the prescribed courses, through the examination, after passing the examination by the Municipal Construction Commission issued a number printed and stamped with the "Chongqing City Construction Management Committee of" legal. "Chongqing construction tower crane operator qualification certificate".
Q:What is the allowable range of vertical deviation for tower cranes?
Previous answers to this question have been made. In the industry standard "construction site inspection of machinery and equipment technical specification" (JGJ160-2008), in the form of mandatory provisions: the tower crane installation height to basic design requirements, the axis of the tower line should be no more than 0.4% of the bearing surfaces of the lateral vertical deviation; after the attachment, the highest attachment point following the vertical deviation should be less than 0.2%. "The basic height of the design requirements" in the "strong regulation", that is, the maximum independent installation height on the site".
Q:How did the tower crane rise on the construction site? Fifteen
In the table below the tower crane is the upper part of the tower body has four jacks, the top of the cage tower (tower of each section is called a tower cage) a little bigger than the following (which can be installed under a small tower, heightening cage) need to jack up above "high rise to work, just a small tower added into the big cage, the cage towers bolted, or tall tower cage can be fixed.
Q:What are the necessary safety devices on a tower crane?
(3) amplitude limiting deviceA crane shall be equipped with a minimum amplitude limiter and a device for preventing the boom from rebounding backward. The trolley must be equipped with a trolley switch and a terminal buffer.(4) rail clamping device and walking spacing deviceTrack type tower cranes must be equipped with rail clamps. A walking limit device shall be installed at the same time.(5) anemometer;For cranes with a hinge height of more than 50m at the root of the boom, a anemometer shall be installed at the top.
Q:Which is the main basis for the disassembly and assembly process planning of tower cranes?
Before the installation and disassembly of 2.0.10 tower cranes, special construction plans shall be worked out to guide operators to perform installation and disassembly operations. The special construction plan shall be prepared according to the actual conditions of the product specifications and the working site of the tower crane, and shall comply with the requirements of the relevant laws, regulations and standards. The special construction plan shall be examined and approved by the technical, safety and equipment departments of the unit, and approved by the technical person in charge, and shall be approved by the supervision unit.2
Q:How to build a tower crane?
Nowadays, most tower cranes used in construction sites have self lifting function, but they can not leave the coordination of cranes when they are installed.Here's the tower crane installation:1, track laying: few walking tower crane, if the working position is not changed in a stage, rail crane fixtures will be locked.Some tower cranes have no running wheels, and the tower cranes are installed directly on the required basis.2. Install the tower crane chassis parts: installation requirements, installation, and placed in the location of the weight block.3. Install the basic tower, revolving parts and tower cap.Each tower crane has the basic height of the tower installation, the installation height of the rotating device and tower cap, these work is the use of sufficient lifting capacity of the car crane to complete.
Q:How to fix the cable on the tower of QTZ125 type tower crane?
The main purpose is to prevent the main cable fixed tower crane tower crane cable weight lead cable pulled bad (insulation damage, core pulling) etc.,
Q:What are the main parameters of a tower crane?
Generally speaking, the main parameters of the tower crane are:Maximum amplitude unit MMaximum lifting height, unit MMaximum lifting torque unit KN.mMaximum lifting speed unit m/minMaximum lifting unit tRotational speed unit r/minVariable speed unit m/min or o/minWalking speed per unit m/minMotor power unit w......Please refer to the product manual.
Q:Do self lifting tower cranes allow a small swing of the boom in jacking operation?
The upper working structure of the attached tower crane is connected with the jacking sleeve frame, and a jack jack is mounted on the top lifting jacket frame. The upper crossbeam of the jack is connected with the jacking frame, and the lower cross beam is provided with a movable claw, and the lower supporting point can fall on the step of the standard section of the tower body. During lifting, first trim jib and balance arm, unlock the top are connected with a lifting sleeve frame with the standard section, start lifting system, lifting jack will superstructure.

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