This isolated view shows the workings of the S6-WSK, including some of the hydraulic cylinders that lift the doors and the bucket assembly.
However, the business part of the S6-WSK is its shovel. The shovel is actuated by a pair of hydraulic cylinders and mechanical linkages that move it to ground level for easy loading of the animal. The shovel can lift loads weighing up to 1,200 lb. from a hydraulic working pressure of 2,100 psi. The hydraulic power unit is sized to provide a 16-sec cycle time—fast enough for quick operation at a safe speed.
Designed by Carlos Arrez, of Perkins, the S6-WSK comes with manually operated hydraulic directional valves mounted at the rear of the unit. An operator can open and close either of two doors on the dumpster from this valve station. After opening a door, the operator actuates a valve to raise the shovel, which pivots 50 deg. to drop animal into the dumpster. Once the operator closes the doors, the hydraulic cylinders ensure that they stay closed.
Perkins also offers optional remote controls for the S6-WSK that can be mounted in the vehicle cab or provide wireless remote control. Jimmy Rimsa, a design engineer at the firm, points out the S6-WSK doesn’t have to be used only for roadkill. It can also handle tree stumps and other landscaping, along with construction waste, trash, and other loose materials.
He says that because the S6-WSK attaches to the bed of a standard pickup truck, it can be removed when not in use. And because the vehicle is a standard pickup, it can be deployed in areas too narrow or rugged for a garbage truck.
Rimsa also acknowledges that the unusual application of the S6-WSK is somewhat of a novelty and drew a lot of attention at Waste Expo 2016. But, he says the goal was to showcase the S6-WSK as just one example of the custom-built machines Perkins Mfg. is known for—in addition to its extensive line of standard industrial and vehicle-mounted products powered by both hydraulics and pneumatics. Visit www.perkinsmfg.com for more information on their products, services, and capabilities.