威海萬豐集團系山東省建筑機械重點生產(chǎn)廠商，現(xiàn)有職工600人，固定資產(chǎn)8000萬元，廠區(qū)占地面積90000平方米，本廠技術力量雄厚，生產(chǎn)設備精良，檢測手段先進。
主要產(chǎn)品：QTZ20系列、QTZ315系列、 QTZ40系列、 QTZ63、 QTZ80、 QTZ125、 FO/23B、 H3/36B塔式起重機；SC200/200施工升降機、SS80/80物料提升機；HBT60.13.90S混凝土泵。產(chǎn)品銷往全國二十多個省市和地區(qū)。
本廠經(jīng)營宗旨：信譽第一，用戶至上。
本廠竭誠與廣大用戶攜手共創(chuàng)建筑業(yè)輝煌的明天。
                                               董事長：馬尚泉
Weihai Wanfeng group is the main enterprises in Shandong which produces construction machinery. Now it has 600 staffers, fined assets of 80 millon yuan and covers an area of 90000 square meters, with excellent productions equipment and advanced test means, the factory is aboundant in technical free.
The main products of the factory are: tower crane QTZ20 seres.QTZ315 seres. QTZ40 seres. Qtz63.QTZ80.QTZ125. FO/23B. H3/36B; SC200/200 construction elevator;SS80/80 Hoist of a seres of materials; HBT60.13.90S concrete pump products are sold to more than twenty provinces all over the country.
Weihai wanfeng construction machinery factory heartly wish to creat a brilliant future of construction together with all of their custmers.
Board chairman: Ma shangquan

QTZ20(3006) QTZ20F (3006) St

QTZ20(3006)塔機特征及優(yōu)點
1. QTZ20、QTZ20F塔機額定起重力矩200KN.M,最大工作幅度30米.
2. QTZ20、QTZ20F塔機獨立固定狀態(tài)起升高度為25.5米,附著狀態(tài)可達到動50米.該機結構合理、新穎、性能優(yōu)良，外觀美觀，臂架覆蓋面積大，起升高度高，操作簡單，維修方便，廣泛應用于14層以下的樓房的建筑施工。
3. QTZ20、QTZ20F塔機回轉機構采用先進的行星齒輪減速器，液力偶合器及回轉支撐傳動，并設有鎖車裝置，傳動平穩(wěn)可靠，定位準確，效率高。
4. QTZ20、QTZ20F塔機為雙吊點塔帽式結構，采用小車變幅，上回轉液壓頂升形式，安裝快捷方便。

Properties and merits of QTZ20(3006) tower crane
1. The rated load moment of QTZ20 and QTZ2OF is 200KN.M. with the maximum hoisting capacity 2 T and the maximum working range 30 meters.
2. The lifting height of QTZ20 and QTZ20F tower cranes can be 25.5 meters when standing stationary alone . and 50 meters when anchored . The structure of this tower crane is novel and rational . with fine properties and pleasant appearance . The tower crane has a large radius and lifting height .Easy to operate and maintain . it can be utilized in the construction of buildings lower than 14 stories.
3. The slewing mechanism of QTZ20 and QTZ20F tower cranes adopts the advanced planet-gear speed reducer .  hydraulic coupler . and rotary backing transmission. And is equipped with lock mechanism. Therefore, it can transmit steadily, locate accurately and work efficiently.
4. QTZ20 Aand QTZ20F tower cranes adopt helmet structures with two hoisting points ,adopt small trolleys, hoist with upper slewing liquid pressure, and they can be installed quickly and conveniently.

 

QTZ31.5(3508)塔機特性及優(yōu)點
1． QTZ31.5塔機額定起重力矩315KN.M，最大起重量3T，最大工作幅度35米。
2． QTZ31.5塔機獨立固定狀態(tài)起升高度為27米，附著狀態(tài)可達到80米，適合27層以下的建筑施工。該機結構合理，主要受力鋼結構件如塔身、吊臂等采用無縫鋼管組成的行架式結構，剛性好，風載荷小，造型美觀。
3． QTZ31.5塔機綜合了全國同類塔機的優(yōu)點，改進了不足之處，使本機性能更先進，結構更合理，造作使用安全可靠。
4． QTZ31.5塔機為雙吊點塔帽式結構，采用小車變幅，上回轉，液亞頂升形式，安裝快捷方便。

Properties and merits of QTZ31.5(3508) tower crane :

1. The load moment of QTZ31.5 tower crane is 315KN.m, the maximum lifting weight is 3T. and the maximum working range is 35 meters.
2. The lifting height of QTZ31.5 tower crane can be 27 meters when standing stationary alone, and 80 meters when anchored, suitable for the construction of buildings lower than 27 stories . The structure of this tower crane is rational, for the main functioning steel parts , such as the tower and the crane, are made up of seamless steel tubes with proper hardness , little wjnd resistance and a pleasant appearance.
3. Combining the merits of the tower cranes of the same kind and improving their disadvantages, QTZ31.5 tower crane has better qualities and a more rational structure , and can be operated with safety.
4. QTZ31.5 tower crane has helmet structures with two hoisting points, adopt small trolleys, hoists with upper slewing liquid pressure , and it can be installed quickly and conveniently.

QTZ63(5013)塔機特點及優(yōu)點
1． QTZ63 塔機額定起重力矩630KN.m,最大起重量6T，最大工作幅度50米；
2． QTZ63 塔機固定狀態(tài)起升高度39米，可進行13層以下的工業(yè)及民用建筑的吊裝施工，附著高度140米，可進行45層以下的工業(yè)及民用建筑的吊裝施工；
3． QTZ63 塔機為雙吊點、 水平臂架，小車變幅，上回轉、液壓頂升結構，安裝拆卸快捷方便；
4． QTZ63 塔機6T起升機構采用雙速單滑環(huán)繞線轉子渦流制動特種電機，教常規(guī)變極調速電機大大降低了電流和慣性沖擊，顯著提高了接觸器的壽命，確保機構具有較好的平穩(wěn)性和可靠性，且提高了就位準確度。根據(jù)用戶需要，起升機構還可以采用三速電機。
5． QTZ63 塔機采用法國POTAN 公司技術的ODM系列回轉機構，該機構采用了先進的電力，電子技術，電磁聯(lián)軸節(jié)和行星減速器無級調速，起動扭鋸大，運行平穩(wěn)，性能先進。 

Properties and merits of QTZ63(5013) tower crane :
1. QTZ63(5013) tower crane : rating moment of lifting :630KN.M. the max lifting capacity: 6t, the max range: 50 m.
2. QTZ63(5013) tower crane : Fixed lifting height :39 m, can undertake 13-story or below buildings, adhesion height 140 m ,can undertake 45-sotry or below buildings.
3. QTZ63(5013) tower crane owns two lifting points, level beam, upper rotating ,hydraulic lifting ,easy for installation and disassembling.
4. QTZ63(5013) 6t tower crane use special motor and lows electric shock and ensure the leveling and stability. The QTZ63(5013) 6t tower crane can also use three speeds motor.
5. The QTZ63（5013）tower crane adopt the technology of ODM series turning framework of POTAN French, the framework use the advanced electric and electronic technology, electromagnetism coupling and planet reducer infinitely timing, twisting moment large when staring, operate smoothly, advanced function.
項目items 參數(shù) parameter
起升速度及起重量
Hoisting speed and lifting capacity  4倍率
Ratio 4 速度 4.5 19.5 40
  起重量 6 6 3
 2倍率
Ratio 2 速度 9 39 80
  起重量 3 3 15
回轉速度 Slewing speed (r/min) 0/0.7
變幅速度 Trolleying speed (r/min) 42/21
頂升速度 Hoisting speed (r/min) 0.5
最低穩(wěn)定下降速Minimum lowering speed(m/min) 不大于5
 
QTZ80(5613) 塔機特點及優(yōu)點
1.QTZ80(5613)塔機額定起重力矩800KN.m,最大起重量8T，最大工作幅度56米。
2.QTZ80(5613)塔機獨立狀態(tài)起升高度為45米，可進行14層以下的工業(yè)及民用建筑的吊裝施工。附著高度150米，可進行50層以下的工業(yè)及民用建筑機械的吊裝施工。
3.QTZ80（5613）塔機為雙吊點，水平臂架，采用小車變幅，上回轉，液壓頂升形式，安裝快捷方便。
4.QTZ80（5613）塔機起升機構，采用雙速繞線電機，起動平穩(wěn)，可實現(xiàn)輕載高速，重載低速，工作效率高，噪音低優(yōu)點。
5.QTZ80（5613）塔機采用法國POTAN公司技術的ODM系列回轉機構，該機采用了先進的電力、電子技術、電磁聯(lián)軸節(jié)和行星減速器無級調速，起動扭距大，運行平穩(wěn)，性能先進。

Properties and merits of QTZ80(5613) tower crane :
1、QTZ80(5613) tower crane : Rated moment of lifting :800KN.m, the max lifting weight :8t, the max range :56m.
2、QTZ80(5613) tower crane : Set lifting height : 45m, can undertake 14-stoery or below building , adhesion height 75 m and 150 m , can undertake 32-story or 50-story or below building.
3、QTZ80(5613) tower crane owns two lifting points, level beam, upper rotating, hydraulic lifting, easy for installation and disassembling .
4、QTZ80(5613) tower crane uses rotating motor, light load with high speed and heavy load with low speed, low noise.
5、QTZ80(5613) tower crane adopt the technology of ODM series turning framework of POTAN French , the framework use the advanced electric and electronic technology, electromagnetism coupling and planet reducer infinitely timing, twisting moment large when starting, operate smoothly, advanced function.  
QTZ125(6015)塔機特性及優(yōu)點

1． QTZ125塔機額定起重力矩1250KN.m，最大起重量8T，最大工作幅度60米。
2． QTZ125塔機獨立固定狀態(tài)起升高度為50米，可進行16層以下的工業(yè)及民用建筑的吊裝施工。附著狀態(tài)有100米（4倍率）和163米（2倍率）兩種高度，可分別進行32層及52層以下的工業(yè)及民用建筑的吊裝施工。
3． QTZ125塔機為雙吊點，無塔帽式結構，采用小車變幅，上回轉，液壓頂升形式，安裝快捷方便。
4． QTZ315塔機起升機構及回轉機構均采用繞線電機，起升、回轉平穩(wěn)，可實現(xiàn)輕載高速，重載低速，工作效率高，噪音低等優(yōu)點。

Properties and merits of QTZ125 tower crane :
1. The rated load moment of QTZ125 tower crane is 1250KN.M, the maximum working range is 60 meters.
2. The lifting height of QTZ125 tower crane can be 40 meters when standing stationary alone, suitable for the hoisting construction of industrial and civil buildings lower than 16 stories. It can be 100 meters and 163 meters when anchored, suitable for the hoisting construction of industrial and civil buildings lower than 32 stories and those lower than 52 stories respectively.
3.QTZ125 tower crane adopt helmet structures with two hoisting points, adopt small trolleys, hoist with upper slewing liquid pressure, and they can be installed quickly and conveniently.
4. The hoisting and slewing mechanisms of QTZ125 tower crane use wire-winding electric motors, and steady hoisting and slewing can be realized, Besides, it can provide high speed for light load and low speed for heavy load, working efficiently with little noise.