JPS - Model R5500 - Saw Unit
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.
Additionally, as the sprocket is reversible, meaning the sprocket is double sided with two rows of teeth, you simply turn it over if needed. JPS therefore offers an impressive 5,000 hour warranty against wear-out of the sprocket. The smart design also enables a uniform and smooth cutting speed when cutting logs.
The uniform chain speed and the more rigid saw bar make cutting more efficient. When tested, the JPS R5500 sawing unit cuts up to 40% faster than its competitors. One of the major benefits of faster cutting are significant less split logs.
The smart design makes it possible to use a wider saw bar tail with a more rigid saw bar, resulting in reduced oscillation. The rigid structure of the saw bar enables the rails to be made stiffer without any risk of cracking. The rigid saw bar has a 3-4 times stronger mounting over conventional guide bars. The unique bar mount can be unfastened with a single screw and it is therefore easy to demount and turn.
The R5500 features automatic chain tensioning. The optimized chain tension, the more rigid saw bar and the large sprocket reduce downtime caused by chain slippage and bar deformation.
The JPS sawing unit has also been prepared for stump treatment in all bar lengths.
In short, the R5500 offers unrivalled productivity and operating economy with a significantly reduced total operating cost that far outperforms other systems. The JPS R5500 saw unit increases productivity, reduces fuel consumption and cuts down on unwanted split logs – in a nutshell, the technology is the key to be successful in modern forestry operations business.
- Reduced fuel consumption
- Fewer split logs
- Prolonged drive sprocket life
- Fewer instances of thrown chain
- More rigid saw bar
- Reduced heat generation
- RPM´s reduced to half
- Increased productivity