7/16″ RA-6

National Acme Automatic Screw Machine with spindle stopping

Model – 7/16″ RA-6, Serial Number C18298, 1962


  • Cross slides, pos 1, 4, 5 & 6
  • Spindle Stopping
  • 2nd pos threading clutch shaft only
  • 5th pos cut off
  • New motor
  • Bar feed complete

Machine Specifications:

  • capacity 7/16″ rd., 5/16″ sq., 3/8″ hex
  • stock feed 3″
  • turning length 1″
  • Idle time .55 Sec.
  • Spindle speed 770-4889 RPM
  • Shipping weight 5,900 LBS
  • Motor 7-1/2 HP
SKU: C18298. Category: .

Product Description

Champion Screw Machine Services, Inc. is a full service Rebuilding Center. Champion offers complete machine rebuilding, reconditioning, machine repairs, machine upgrades, electrical upgrades, PLC upgrades, carrier rebuilding, carrier stem & toolslide reconditioning, locking pin and block reconditioning, journal and bearing port repair, stop screw thread repair, main toolside conversion, slide reconditioning, attachment installation, tooling design and installation, job layout, process engineering, special attachment design, process control upgrades, and complete turn-key.   All machines are completely customizable to fit your standards. Please consider these machines as base machines that can be upgraded to meet your specifications. Champion does not paint or clean machines until machines have been quoted and sold in order to provide machines at lowest possible starting prices.

Please contact Mark Knedgen to receive a customized quote on this machine.


Mark Knedgen

Champion Screw Machine Services, Inc.



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