Lindemann launches NxtCut midsize scrap shear

Germany-based Lindemann Metal Recycling Solutions has announced the release of its NxtCut next generation hydraulic scrap shear, which the company says is specifically designed for processing moderate volumes of assorted light to medium-heavy scrap metal.

Lindemann says two major benefits of the shear are its new tank design and technology, which reduces oil volumes by over two-thirds—from 6,200 liters (1,638 gallons) to 2,500 liters (660 gallons)—and its energy efficiency, which can save up to 72,000-kilowatt hours (kWh) in energy use per year compared with the machine’s predecessor.

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The company says the NxtCut has processing capabilities of up to 41 tons per hour. The NxtCut 1025-8 is Lindemann’s successor to its Powercut II shear for medium-heavy, bulky mixed steel scrap, incorporating the benefits of advanced structural analysis. The model is available in TD80 and shorter TD62 configurations.

The machines’ three standard 110-kW drives can handle up to almost 40 tons per hour in full-stroke operation and, correspondingly, less with the shorter version. If required, the NxtCut 1025-8 can be given an additional power boost with an optional fourth drive, the manufacturer says. The machines’ 8-meter (26-foot) and 6.2-meter-long (20.3-foot-long) charge boxes provide a 2,000-millimeter-wide (6.56-foot-wide) and 1,650-millimeter-deep (5.4-foot-deep) area in which to deposit scrap, before 250 tons of side compression force and 270 tons of lid force compresses it into a package of 800 millimeters by 600 millimeters (2.6 feet by 2 feet).

Lindemann says a fully enclosed, laser-controlled pusher cylinder with 120 tons of force then directs the material toward the 800-millimeter-wide (2.6-foot-wide) blade and the Lindemann bending bar—which boosts shearing performance when handling long materials. The shear frame’s design features, such as the dimensioned and easy-to-adjust guide rails, provide optimum load absorption to withstand 1,000 tons of pressure.

Additionally, the NxtCut machines feature improved wear plate design, which the company says provides maximum protection for the structure of the NxtCut shear frame, which also features easily replaceable liners and is the result of an effort to reduce maintenance costs across the entire machine. An improved wear plate concept includes, for example, using higher LINDUR grades to enable cost-effective and sustainable operations with maximum reliability. Once plates reach the end of their working lives, the use of stud bolds aids their replacement, allowing the NxtCut to return to duty as quickly as possible.

Downtime is further reduced, the company says, thanks to lubrication being performed automatically across the entire shear. By halving the volume of the hydraulic tank, maintenance requirements and costs have been lowered further, along with the machines’ environmental impact.

In line with Lindemann’s commitment to the “green steel cycle” and supporting customers during difficult economic times, ensuring the highest energy efficiency is another essential part of the NxtCut’s design, the company says. Like other Lindemann machines, the new models reduce unproductive power loss by 35 percent, with the use of an efficient hydraulic drive concept that employs 400 bar of operating pressure and magnetostrictive position monitoring of the cylinders, for optimized control. In conjunction with the switchblade Eco mode, a further reduction in power loss in excess of 33 percent can be achieved.

The company says that measures such as using the same pumps for high and low pressure mean there is greater parts commonality in the design of the NxtCut 1025-8. The flexible control of the hydraulic pumps provides exactly the hydraulic power that is required by the system. Minimal energy consumption during idling and an even load on all pumps completes the concept.

Along with the relative-stroke and partial-stroke control of blade slide and stamper, Lindemann is making several different cutting modes optionally available to ensure maximum throughput, with material-specific automatic programs being a particularly useful option.

Lindemann says its InDEx production and performance data acquisition tool allows for optimal monitoring and evaluation of the workflow, utilization and performance of machines while also providing details of their general health and operating hours. This all can be done remotely, the company says, with no need for physical access to the operator panel in the optional control cabin.

Compact and sturdy, the basic NxtCut 1025-8 unit measures approximately 6.5 meters (21.3 feet) wide and 6.2 meters (20.3 feet) high, with the TD80 reaching 20.5 meters (67.3 feet) in length and the TD62 16.9 meters (55.5 feet). The entire drive unit can either be installed in a pump house next to the machine, or optionally housed in a space-saving manner within a prefabricated container frame, or a fully enclosed container, reducing the effort required for transport, installation and commissioning.

Lindemann adds the machine can be configured for almost any possible application, courtesy of a wide range of options, such as an extended discharge chute for connecting discharge systems, or scrap discharge and cleaning systems. Tank heating and increased cooling options will promote optimum performance in less-temperate regions.