Considering special grounds such as swamps, certain options been designed and manufactured which uses two axle chains in these machines instead of rubber-wheels which not only doesn’t make it sink into the ground, but also it has much more maneuver power compared to rubber-wheeled ones considering embedded chain system in aforesaid ground type. Loaders can be divided into different groups according to their bucket size and the weight amount they’re able to carry. Rubber-wheeled buckets have capacity of six tenth cupid meters to twenty cupid meters and even more in accordance with customer’s need and SAE (Society of Automotive Engineers) standards. Chain-wheeled Loader’s bucket is designed and manufactured within range of six tenth to three and five tenth cupid meters. But the most commonly used and available model is rubber-wheeled Loaders with bucket size within range of seventy-six hundredth to four cupid meters. Loaders power are usually between – horsepower.
This loader is the compilation of a rubber-wheeled loader and a crawler excavator. Just like loader, a bucket is embedded in its front and in rear, there’s an arm with -degree rotation ability for excavating holes and canals. This machine is smaller than loader and crawler excavator and its shape is similar to a tractor; back wheels bigger than front wheels and utilization in small projects. This machine is used for soil light cutting, small and medium canals cutting in accordance to shape --, dredging, obstacles elimination, light cuttings and loading for trucks. Idea for this machine was a need for a machine capable of operating as loader and a crawler but at the same time reduced in size for small scaled projects which big machine operating is not possible in its area. This is why this machine is also called multi-purpose machine.
شرکت تجارت کوشش سپاهان به عنوان یکی از پویاترین شرکت های بخش خصوصی در حوزه حمل و نقل ریلی ناوگانی متشکل از دستگاه واگن لبه بلند ، دستگاه واگن شن کش و واگن معدنی در اختیار دارد که سالیانه بیش از ۵میلیون تن مواد معدنی را در مسیرهای مختلف حمل میکند.
بکهولودر یک شبهتراکتور مجهز به بیل جلو به نام (Loader) و بیل عقب به نام (BackHoe) است.. این دستگاه در اندازهها و مدلهای کوچک و بزرگ مناسب برای کار در مزارع و کارهای عمرانی و ساختمانی طراحی شده است.. از این ماشینآلات برای پروژههای مختلف است.فاده میشود که مهمترین آن شامل موارد زیر میباشد:
In many road and building construction projects, presence of loaders in workshop area is not possible. There was also a need for machines with capabilities of a loader but in smaller scale, and this is where mini loaders come in; this machine due to its small frame, has more rotating and maneuver power. In mini loader design, many abilities for increasing machine’s performance was considered, which by adding these modifications (trencher, drill and hydraulic hammer) to the machine, its abilities are improved. One of the common traits of this machine, is the removal of steering wheel and replaced with using lever steer (Atari controller).