Issue link: http://read.dmtmag.com/i/141651
manufacturer is keeping tight lipped on any other details of the machine's engine aftertreatment until it has been unveiled at Bauma. However, at the same time that it is developing Tier 4 Final machines, the company is also rolling out new earthmovers for lower regulated markets. Since the start of the year, it has introduced two new excavators, for example – the 17 tonne class 318 DL Series 2 and the 13 tonne class 312D/D L Series 2. Both feature Tier 2/Stage II-compliant engines with mechanical governors, while the excavators themselves are designed to be easier to service, with exceptionally robust major structures to make them more durable. CNH's Case and New Holland brands will also introduce new Tier 4 Final/Stage IVcompliant earthmovers this year, ahead of the 2014 laws. New Holland's first Tier 4 Final machines are the 7.5 tonne E75C SR and 8.3 tonne E85C MSR excavators, which use EGR and a DOC to meet the emissions laws. Case's Tier 4 Final models so far include the 8 and 9 tonne class CX75 SR and CX80C excavators – machines which also meet the Tier 4 Final emissions standards using EGR combined with a DOC. But, like other major manufacturers, Case has also introduced new earthmovers for Tier II markets. Most recently, it launched two new F-Series wheeled loaders – the 4 m3 bucket capacity 921F and 5 m3 1121F. As well as the engines, both machines also feature design aspects tailored to work in remote, dusty environments, including radiator cooling cubes, which see five radiators mounted to form a cube instead of overlapping. This design is said to increasing cooling efficiency and reliability, while the cooling system is mounted behind the cab, far from the rear of the machine and from the ground – away from the dust. Another manufacturer concentrating on both ends of the regulatory spectrum is Doosan, which will continue to update its Tier 4 Interim/Stage IIIB-compliant range this year. New earthmoving launches with engines that adhere to these regulations include the 25 tonne DX255LC-3, 42 tonne DX420LC-3, 49 tonne IDA UNIVERSAL July-August 2013 DX490LC-3 and 52 tonne DX530LC-3 excavators and the DL200-3, DL250-3 and DL550-3 wheeled loaders, with bucket capacities of 2 m3, 2.5 m3 and 5.4 m3 respectively. But Doosan is also marketing alternative models for Tier 1 and Tier 2 markets such as the Middle East and Africa. The DL550 wheeled loader is the Tier 2 version of the DL550-3, for instance, while the 48 tonne DX480LCA and 51 tonne DX520LCA crawler excavators are alternatives to Doosan's Tier 4 Interim/Stage IIIB-compliant machines in these weight categories, and also intended for markets in the Middle East and Africa. Limited electronics Both machines are powered by the 238 kW Doosan DE12TIS Tier II compliant diesel engine and share a common design that the manufacturer claims is particularly suited to the specific needs of the Middle East and African markets, combining high robustness with limited electronics and easy accessibility for repair and maintenance work. Doosan claims that, in the unlikely event of an electronic fault, the design ensures this does not affect the performance of the machine and is easy to repair in the field. Volvo also concentrates on both highly regulated and emerging markets through its dual brand strategy. It markets both its own machines and those of its Chinese joint venture, SDLG, with more of a focus on emerging markets with the SDLG brand. Indeed, Volvo claims to have seen a rapid rise in demand for its SDLG branded machines in Latin America. A US$ 10 million new excavator manufacturing line – SDLG America Latina – is being created at the site of Volvo CE's existing manufacturing complex in Pederneiras in São Paulo, Brazil, to capitalize. Initially four SDLG models of tracked excavators will roll off the production lines, starting from the middle of 2013 – the 13.8 to 24.3 tonne LG6150E, LG6210E, LG6225E and LG6250E machines. However, as well as producing Volvo-branded machines boasting Tier 4 Interim-compliant engines for highly regulated markets, Volvo has also begun tailoring its own machines to emergContinued on page 53 51