No Shear Blade Scuffing: In addition to the Servo-Feed’s precise length tolerance and high-cycle rate capability, the Servo-Feed employs a "pull-back" sequence that pulls the strip away from the Shear blade during the shear cycle to avoid blade scuffing. The Servo-Feed will feed-to-length and signal the Shear to fire. As soon as the Shear cuts through the strip, the Servo-Feed will reverse, pulling the strip away from the Shear blade a few thousandths of an inch so the blade doesn’t "scuff" the leading strip edge as the Shear completes its cycle. Shear blade scuffing often results in leading edge damage and bent part ends.

Hi-Cyclic Rate Electronic AC Servo-Feed with "pull-back" sequence avoids Shear blade scuffing.

Continuous-Stroke Bow-Tie DC Shear: The Macsteel CTL Line employs a huge top driven bow-tie, DC motor Shear for cut-to-length. The high-speed Shear is capable of producing pattern length sheets in a 60-stroke/minute "clutch-brake" mode and smaller parts in an 80+ stroke/minute non-stop "continuous-stroke" mode. Operating in conjunction with the high cycle rate Servo-Feed, the non-stop shear cycle offers unrivaled productivity. When the Shear runs in the continuous-stroke mode, the DC motor driven crankshaft rotation is synchronized with the Servo-Feed. The pull-back and feed cycle begins as soon as the upper shear blade cuts the strip on its down stroke, so the strip can be fed forward as the Shear ram is traveling up.

Loop Quads and Side Guides square the strip into the Servo-Feed and DC Shear.

Massive Coninuous-Stroke DC Bow-Tie Shear Offers Outstanding Productivity.

The feed sequence continues well past Shear top dead center and stops as the shear blade approaches the strip on the down stroke. The simultaneous Servo Feed-DC Shear cycle expands the feed forward time window and results in a parts per-minute production rate much higher than the conventional start-stop feed-shear mode.

Reject Belt & "Flipper" Sheet Stacker: Cut parts are conveyed away from the Shear on a variable-speed Belt Conveyor. The Belt Conveyor has the ability to direct cut parts into the Stacker or to a scrap cart for discarding head and tail ends. The Stacker carries cut parts on a set of non-marking roller "flippers" until the part is directly above the stack where it is released. The part supporting flippers are pivoted open and closed by air cylinders. An Elevating Stack Table automatically elevates close to the sheet release height to minimize part drop distance. An air float system generates an air film that helps support light gauge parts during the stacking sequence. Pushbutton adjustable side skirts and end stop contain the sheet stacks and produce solid-block packages. A Power Pallet Injector eliminates manhandling heavy pallets into the Stacker. Pallet size is programmed into a controller and the pallet is automatically injected and positioned in the Stacker.

Exit End View of Macsteel 72" x 1/4" CTL Line.

Sheet Pack Handling: In order to avoid production down-time due to finished product packaging, the Macsteel CTL Line employs a Runout Conveyor capable of accumulating more than a dozen pattern sheet packages, and twice as many smaller parts packs. A Rotating Sheet Pack Conveyor receives sheet packs from the Stacker and rotates 90-degrees to align with the Runout Conveyor.

Inspection-Reject Belt, Sheet Stacker and Programmable Pallet Injector.

Precise tolerance panel flat parts, solid-block sheet packs, productivity and bullet-proof reliability made Macsteel's choice of a Braner/Loopco Cassette Leveler Cut-to-Length Line a "no-brainer."

Macsteel Service Centers USA
420 Memory Lane
York, PA 17402
phone: (717) 755-1923  fax: (717) 840-4747
www.macsteelusa.com