Having cut the RPM’s to half, JPS have set a new standard for modern forestry operations by introduced a saw unit with unrivalled productivity and operating economy – Reduced fuel consumption, less heat generation and fewer split logs are just some of the real benefits.
With the new R5500 saw unit, JPS have turned traditional concepts on their head. By re-evaluating the design, JPS have challenged and improved former technologies in several ways. Instead of operating the saw motor at its maximum limits, which leads to reduced efficiency and high heat generation, JPS have lowered the RPM’s to half and increased the torque by using a larger sprocket.
With a lower rotational speed and less heat generation, the power produced by the hydraulic system is used more efficient. Instead of being lost as heat generation, a greater part of that power is now used to drive the saw unit. Validated test have shown that the R5500 saw unit can reduce fuel consumption when harvesting by up to 15%. The fuel savings alone make the investment payback-time less than a year.
By not pushing equipment to the limit, the service life is extended which means even lower operating costs, fewer disruptions and more productivity. The chain speed has been maintained by using a larger drive sprocket with 20 or 22 teeth. The large radius also reduces sprocket wear out to a minimum.