M-4B Crankshaft Rebuilder






  • Max. stroke 18.0″ (457.2mm)
  • Max. chuck opening 13.0″ (330.2mm)
  • Max. swing 36.0″ (914.4mm)
  • Max. crank weight 10,000 lbs. (4545 kg) Dual end supports included.
  • Carriage travel 150.0″ (3810mm)
  • Handles crankshafts up to 300.0″ (7620mm) by turning end for end. Note: right end of machine trough shaped to allow unrestricted rotation of cranks over 150.0 ” (3810mm)
  • Floor space required 92″ x 220″ (2236mm x 5588mm)
  • No lead screw cross slides to adjust.
  • No counter weights to set.
  • Semi automatic oil hole bumper.
  • Automatic stroke indicator permits precise reading in approximately 10 sec.
  • Automatic step-up and step-over of torch for preset weld spacing on thrust, radius and journal surfaces.
  • Change from rods to mains in less than 5 seconds, without wrenches.
  • Digital meters control deposit height and width.
  • Electronic indicator for proper rotation speed.
  • Dual wire feed for automatically switching from journal wire to radius wire.
  • Automatic, ultra quiet flux recovery system.
  • Crankshaft buildup kit to match or exceed OEM specs for hardness and flexibility of automotive crankshafts.