... 180mm(7.1in) Rocking rollers Yes Track tensioning Yes Hydraulic crawler loader BY800(BY500H) is strong frame, gasoline/deseil engine ... able to carry 800kgs materials, hydraulic lifting and tipping. Hydraulic crawler loader BY800(BY500H) is capable of zero-radius, "pirouette" ... for applications that require a compact, agile loader. Hydraulic crawler loader BY800(BY500H) is a morden fron loader. It ...