Kenworth Trucks is a truck manufacturer based in Inc.amerika. Founded in 1923 as the successor of Gerlinger Motors, Kenworth specialized in the production of heavy service (class 8) and middle service (5-7th grade) commercial vehicles. Kenworth, headquartered in Kirkland, headquartered in Kirkland, Washington, has been operating with a subsidiary of Paccar since 1945 and operates with the sister company (and its market rival) Peterbilt Motors.Kenworth has signed many firsts in truck production; In addition to the first truck manufactured with standard diesel fuel engine, the company introduced the first heavy service truck with an upgraded bed cabin with upgraded ceiling and aerodynamically optimized body design. The Kenworth W900 automotive history has been produced continuously since 1961, which serves as one of the longest production of diarrhea.In 2000, Kenworth replaced the Middle Service Coe series by replacing the K300's man -based design with a DAF 45 (Leyland Roadrunner) cabin. Following the decreasing request for the Class 8 Cabinet cabins, the K100E was quietly removed after 2002 production in North America; Kenworth continues to produce the Australian model line.In 2006, the company released the K500, the largest COE ever produced. Firstly, the K500, which was developed for non -highway applications, brought together the chassis of the heavy service type C500 and the Coe cabin of DAF XF; All examples produced from 2006 to 2020 were sold for export.In 2008, Kenworth passed the modernization of the model line. The T600 was T660, passing through a significant revision in aerodynamics. The middle service type T300 was replaced by the Class 5-7 T170/T270/T370 family. The low -cabin Coe has returned based on DAF LF. The model series, which was initially marketed as K260/K360, was renamed as K270/K370 for 2013.For 2011 production, the T700 replaced the T2000 and adopted a larger grill and mounted headlamps on the fender. For 2013 production, the T680 was introduced as a third generation aerodynamic Kenworth conventional, a single backup for the tight -body T660 and a wide -body T700. The T700 was stopped in 2014 and T660's production was stopped in 2017 (32 years after the release of the T600). The T880, which shares the same cabin as the T680, was introduced as the first wide -body Kenworth for professional applications as well as the W900S and T800 family.In 2018, the W990 was introduced as the traditional flagship of the Kenworth model series. The W990, which shares the wide -body cabin of the T680 and T880, is the longest longest hood produced by Kenworth. As of the current production, it continues to be part of the W900 Kenworth model series (sixty years after the input).For the production of 2021, Kenworth introduced three models of electric vehicle series running with battery-electric power transfer organs with K270E, K370E and T680E. In 2021, Kenworth launched the T680 Fecv with a 10 -vehicle promotional flec in California. The T680 FCEV works with a Toyota hydrogen fuel cell, has six hydrogen stores and a driving range of over 300 miles (480 km) of 80,000 pounds (36,000 kg). Concrete mixer or concrete mixer is a device that combines the aggregate with aggregate, such as cement, sand or gravel to create concrete. A typical concrete mixer uses a rotating drum to mix the components. For more small volume works, portable concrete mixers are often used. Thus, concrete can be done on concrete construction site and the workers are given enough time to use concrete before hardening. It is to mix alternative concrete to a machine. This is usually done in a crane.