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peaks down to 5 [microinches] or less before we ever start the engine, but the valleys remain. We may not always take the peaks off during honing. If you ball-hone or sandpaper, think- ing you’ll accomplish this, you’ll simply reduce valley depth and the engine won’t run as good. In our experience, if you go smoother on honing peaks and valleys, the finish won’t last as long. Starting with a rougher finish, the block is going to wear in and be sealed up so tight it will surprise you,” Maskin said. The SV-20 honing system gives Dart the flexibility to efficiently process any engine block in any material and hard- ness. “There is no typical production run for us,” said Maskin. “We can put a new block on the SV-20, once the program is written, and no machine can make a cylinder rounder or straighter. The finish is all based on programming. If you know where you want to go, you can get there,” Maskin said. “Computer control has taken much of the black art out of honing. Machines like the SV-20 produce a finish and size that previously required a very talented machinist. If you have


Sunnen’s two-stage diamond abrasive honing tool does roughing and finishing with 220- and 500-grit abrasives without pause for stone change, making a wide range of finishing options available to Dart Machinery.


to hone different blocks with different material content, like we do, the newer equipment is significantly better,” Maskin said. The Sunnen SV-20 honing system uses programmable control to replicate “best” engine parameters and produce expert results with minimal operator expertise. ME For more information from Sunnen Products Co., go to www.sunnen.com, or phone 800-325-3670


SCRAP MANAGEMENT AND MATERIAL HANDLING SOLUTIONS YOUR JOB IS TO KEEP THE SCRAP COMING. OUR JOB IS TO TAKE IT AWAY.


Put the experience of an industry leader to work in your facility with engineered solutions for scrap management and chip processing. Choose the Shuffl e Drive Conveyor System to signifi cantly increase productivity and decrease downtime. This machine is ideal for conveying a wide variety of material including stamping, diecasting, laser cutting scrap, and much more. Move materials of all sizes effi ciently on a conveyance area that has no moving parts. Extra low maintenance.


• Non-vibrating


• Designed for operation 24/7/365


• Can be started under full load • Move materials of all sizes • Horizontal, smooth motion


Mayfran also offers steel hinge belt conveyors ranging from 1-1/4 to 12” pitch for small chips to high impact load applications.


Engineered Solutions for Moving Your Materials in the Right Direction


www.Mayfran.com877.MAYFRAN scrapinfo@mayfran.com


42 ManufacturingEngineeringMedia.com | June 2014


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