RPM Equipment Sales

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Used Engine Equipment

Used Crankshaft Grinders 
Used Cylinder Boring Bars
Used Align Boring & Honing 
Used Cylinder Honing Machines
Used Seat & Guide Machines
Used Valve Equipment
Used Valve Grinders
Used Rod, Hone, Boring & Cap  
Used Surfacing Grinding CBN 
Used Flywheel Grinders
Used Cleaning Equipment
Used Magnuflux 
Used Sunnen Equipment
Used Serdi Machines 
Used Rottler Boring 
Misc. Equipment

RPM Equipment Sales offers premier Automotive Engine Rebuilding Equipment including CNC Machineing Centers. Rottler MFG, AXE equipment, Kwik Way, and Van Norman are our
Engine rebuilding Equipment manufacturers.
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H86A  CNC Diamond Cylinder Honing Machine
Many Engine Blocks have interference in the lower area of the bores and can damage honing stones and holders. Everytime the H86A starts honing a cylinder, the machine will check bores for interference avoiding potential damage to honing stones and holders. Variances in lower bores are common. Rottler H86A Control senses lower bore interference prior to rotation and stroking stroking motion starting at full power, eliminating any stone or holder damage.
Automatic Lower Crash Protection System – every time cycle start is activated, the machine will check that the stones will not interfere with lower bore before starting rotation and stroking preventing stone and stone holder damage.Automatic Honing Stone retract at End of Cycle – the machine will automatically retract the stones during last stroke so that the stones do not leave any scratches or marks in the bore.
Automatic Cross Hatch Angle System –  the machine will automatically adjust parameters to programmed cross hatch angle and finish the bore to programmed angle.Automatic Roughing and Finishing Load Sensing System - machine controls load/pressure that the honing stones exert against the cylinder wall and reduces load during finishing cycle. 
Automatic Short Stroke and Dwell - machine detects tight area and short stroke or dwells.Electronic Hand Wheel for lowering hone head into each bore
Automatic Stone Feed-out System - once hone head is positioned in the bore, the machine automatically expands stones and rotates slowly before starting hone cycle