Since the 70s of last century, the world crane market has undergone rapid changes. The United States is addicted to the electronic information industry, and the scale of heavy industry is shrinking. The crane has lost its energy in the development of the crane. Europe's economy has been in the doldrums for a while, but it has made great progress in the field of industrial manufacturing. Taking German enterprises as the center, we constantly break through the world record of large tonnage cranes. The Japanese crane industry has been growing at a high speed, occupying the market of small and medium tonnage cranes, but it failed after Japan's bubble economy burst.
In addition to British COLES, European mobile crane manufacturers also have German Gottald (Gottwald), Liebherr (Liebherr), Krupp (KRUUP), Fahn (FAUN), French PPM, Spanish LUNA and so on.
The German Gottald (GOTTWALD) company, founded in 1906, is located in Dusseldorf, formerly known as "MUKAG" (Maschinen und Kranbau Aktien Gesellschaft) to produce steam cranes, excavators, and piling machines. In 1926, Leo Gottwald Leo Gottwald took over MUKAG. In 1936, it was formally renamed as Leo Gottwald KG. The company was survived by World War II, and the MK-1 wheeled crane was launched in 1950. In 1956, the world's first mobile port crane was launched, using a wheeled truck chassis.
In 1959, the company began to manufacture truck cranes and was famous for producing large tonnage truck cranes. The AK series truss arm crane, which has been produced in 1978, mainly includes AK150, 210, 300, 350, 400, 450, 680, 850, 912, 1200 and other models. The weight of AK210 is 210 tons, and the 7 axle chassis is used. AK300 is manufactured by Swiss Toggenburger company, producing only one unit with 9 axle chassis. The car was later upgraded to 400 tonnes and sold to Hongkong. AK350 made use of the 8 axle chassis and only produced one to Japan's Shan nine company. Now it is in Taiwan's Formosa heavy industries. AK450, AK680 and AK850 have only made two units, of which AK850 is a 10 axle chassis with a weight of 850 tons. Because this vehicle exceeds the axle load limit imposed by the German road, the hoist and spool must be removed before each transfer. AK912, which started in 1985, was the world's largest wheel crane with 1200 tons of lifting capability after being equipped with a super lift and a specific arm length, which produced only 3 units. AK912 adopts 10 axle chassis, divided into the first 6, the 4, the first 7, the 3 two. Because the body is too large, exceeding the limit of German road transport, the use cost is very high. In 1988, after the acquisition of GOTTWALD by Demag, the AK912 GT truck truss arm crane became a masterpiece of the generation.
The box type telescopic boom cranes produced by the globe are named in the AMK series, including AMK45, AMK75, AMK85, AMK125, AMK200, AMK210, AMK306, AMK400, AMK500, AMK600, AMK1000 and so on. AMK is a 200 ton crane with 6 axle chassis, and then upgraded to 8 axle. 7 cars were manufactured. AMK210 made 13 vehicles. AMK400 has made 4 units. AMK500 was upgraded from the first AKM400-93 to just one. AMK600 is a 9 axle chassis with a maximum working radius of 2.7 meters. In 1985, the AMK1000-103 manufactured by Riga Mainz company has only one chassis, 10 axle chassis, the maximum lifting capacity is 1000 tons, and the working radius is 4 meters at full load. The world record of the world's largest tonnage telescopic boom truck crane has been recorded for 22 years before Liebherr, Germany, launched the LTM11200-9.1 type 1200 ton full road crane in 2007. The car was resold several times and fell into the hands of the Taiwanese. The third hand is Taiwan dragon tiger lifting company, and the fourth hand is Taiwan power.
Gothward was originally a family business, and by the 80s of last century, Leo Gottwald, nine, needed to retire, but his children were only in love with family financial business. In the case of no successor, old brother tiger's decision to sell the company. The hydraulic crane department was sold to Krupp in 1985, and the trussed crane and railway crane business was sold to man's Demag.
