Kinshofer’s new hydraulic mobile excavator shears are promising to deliver the same power as shears that are two sizes larger.
According to the company, The DXS Series shears feature industry-leading power-to-weight ratios, jaw opening sizes, cycle times and hydraulic efficiency. The attachment series, which debuts with the DXS-50 model, is ideal for scrap processing, tire recycling and demolition.
“We designed the DXS Series to enhance contractors’ productivity and ROI,” said Francois Martin, general manager of Kinshofer North America. “Traditionally, more power means a larger cylinder, which results in a bigger, heavier shear and, often, a larger machine. The DXS-50 has the same-sized cylinder as shears in the same weight class, but with 20 per cent more power.”
Kinshofer’s DemaPower cylinder technology is what gives the DXS-50 the same power as shears two sizes larger, according to the company. The cylinder uses four chambers instead of two, resulting in 20 per cent more surface area within the cylinder. This allows the DXS Series to exert up to 25 per cent more power from a smaller attachment. The 4,500 kg DXS-50 features a closing force of 1,203 tons, compared to 922 tons from its 4,100-kg predecessor, the DRS-45.
Like the DRS-45, the DXS-50 is suited for 25- to 35-ton carriers when boom mounted, and 32- to 50-ton carriers when stick mounted. This allows contractors to achieve a closing force equivalent to shears two sizes up, requiring a minimum 32-ton carrier, on an excavator weighing 7 tons less.
In addition, the cylinder technology allowed Kinshofer to design the DXS-50 with a jaw opening of 74 cm wide and 78 cm deep.
The DXS-50 reduces carrier fuel consumption by up to 20 per cent compared to similar models. The attachment’s efficient design also allows it to function normally when the carrier is set in economy mode.
Power to weight ratio
The DXS-50’s power-to-weight ratio makes the attachment ideal for top-down demolition, as contractors may use smaller carriers and because the attachment’s light weight and superior cylinder technology improve fuel efficiency while the excavator arm is fully extended. Furthermore, Kinshofer designed the attachment with a narrow frame to allow operators to better see their work.
The double-acting speed valves and cylinder technology also provide the DXS-50 superior jaw closing and opening speeds. The cycle time is as fast as 5.5 seconds, 50 per cent faster than any model in its weight class.
Rotation-equipped models feature 360-degree continuous rotation on an oversized slewing ring to bear high forces, shock loads and bending. The rotation model includes heavy-duty motors for maximum rotation torque.
The DXS-50 also features a piercing tip that can be welded again and replaced.