近期，卡特彼勒（CAT）推出了一系列面向欧洲市场制造的四种新型挖掘装载机，并已开始供货。

卡特彼勒称每台机器均配备了新的3.6升发动机，该发动机最多可节省10％的燃料。新车型– 428（带有55kW发动机）； 432（70kW）; 434（74.5kW）;和444（82kW）搭载4.4升大型发动机–具有与前代车型相同的功率和扭矩。

新机型的最高行驶速度为40kph（与之前的型号一样），卡特彼勒表示，它们具有更大的加速度，因此更适于工地之间的转场。

由于增加了柴油微粒过滤器（DPF），新发动机符合EU Stage V排放法规。除55kW机型外，所有其他发动机均需要柴油机尾气处理液。

新型装载机的其他亮点包括新的座椅安装式控制装置和集成操纵杆，它们是432和444型号的标配。 卡特彼勒表示，这种电动液压解决方案使操作员在转向装载或挖掘应用时可以进行更多控制。

“双重控制”功能还允许挖掘装载机的任一臂操作，而无需转向面对附件。

操作员可以调高或调低液压系统的速度，调节操纵杆的响应速度，并根据自己的喜好或特定应用来匹配机器。例如，在公用设施附近工作时，操作员可以降低液压装置的速度，从而更好地控制机器。

驾驶室内的功能包括可选的触摸屏显示器，该显示器可以选择四位数的安全代码，最多允许25位操作员键入自己的个人代码。屏幕上显示机器设置，服务提醒等，包含多种语言选项。

变速箱的范围从标准机械式（在428和434型号上）到新的Powershift动力换挡变速箱以及全自动变速箱（444型号）。

但是，操作员将能够使用软件简单地从动力换挡变速箱升级到全自动变速箱，并安装附加的机器安全性配置。

装载机和挖斗的连杆保持不变，因此先前购买的附件也适合新型号，并且卡特彼勒的新型B6和B8破碎锤也适用于该系列产品。

本文源自KHL，原文如下：

CAT launches new backhoe loaders

By Mike Hayes

CAT has unveiled a range of four new backhoe loaders, made in Europe for the European market, and available immediately.

Each of the machines – described at the company’s annual product overview (this year broadcast as a virtual event) – has a new 3.6l engine, which CAT says produces fuel savings of up to 10%. The new models – the 428 (with a 55kW engine); the 432 (70kW); 434 (74.5kW); and 444 (82kW) – promise the same power and torque of predecessor models, which carried the larger, 4.4l engine.

The maximum travel speed of the new models is 40kph (as with predecessor models) and CAT says they have greater acceleration, making them easier to use on roads between sites.

The new engine meets EU Stage V emissions regulations, due to the addition of a diesel particulate filter (DPF) and all engines, other than the 55kW version, require diesel exhaust fluid.

Other highlights of the new loaders include new seat-mounted controls, integrated joysticks which come as standard on 432 and 444 models. This electro-hydraulic solution, says CAT, gives the operator more control when turning to work on either the loading or digging appliCATions.

A ‘dual control’ feature also allows the operation of either arm of the backhoe loader without the requirement of turning to face the attachment.

Operators can dial up or down the speed of the hydraulics, adjusting the response speed of the joysticks and matching the machine to their preference or to a particular appliCATion. When working around utilities, for example, an operator can slow the hydraulics down, giving greater control over the machine.

A feature inside the cab is an optional touchscreen display, which has the option of a four-digit security code, allowing up to 25 operators to key in their own individual codes. Machine settings, service reminders, and so on, are displayed on the screen, with a large range of language options.

Transmissions range from standard mechanical (on the 428 and 434 models), to the new Powershift transmission (with a simple twist lever running from gear one to gear four), and a fully automatic transmission on the 444.

However, operators will be able to use software to simply upgrade from Powershift transmission to fully automatic transmission, as well as to install additional machine security.

Linkages for both the loader and hoe remain unchanged, so previously purchased attachments will fit the new models, and CAT’s new B6 and B8 hammers are also useable across the range.

Source：https://www.khl.com/news/CAT-launches-new-backhoe-loaders/1147285.article