Acme Gridley Model RA-8 3/4" Multiple Spindle Automatic Screw Machine, Logan Clutches, Electric Air P/O, Backworking, Complete Rebuilt-2020-As NEW.


RA-8 3/4"

Automatic Screw Machines, Multi-Spdl

Stock #

Like New



Logan Electric Air Threading, Logan HI/Lo Clutches, Backworking, Pickoff, Stock Depletion Sensor


Number of Spindles on Machine 8
Max. Round Bar Capacity 3/4"
Max. Hexagon Bar Capacity 5/8"
Max. Square Bar Capacity 17/32"
Spindle Spindle - Min. 463 RPM
Spindle Speed - Max. 3880 RPM
Standard Toolslide Travel 4-3/4"
Stock Feed (Slide Travel) 7"
Idle Time (Seconds) 1.44 sec.
Independently Operated Cross Slides 6
End Toolslide Toolholders (Hinge Type) 8
Cutoff Toolholders and Tool 1
Standard Main Motor 30 HP
Dimensions 17'-3/4" L x 3' 7" W x 5' 6" Ht.
Weight 13800 pounds
Electric Controls:  Pick-off (Open/Close), Stock Depletion Switch (Return/Rn), Out of Stock light, Take Control Button, Main Motor Start button, Feed Start button, Station Control: Front/Rear Switch, Main Motor Switch: Jog/Run, Feed Switch: Jog/Run, Permit Run: Button, Main Motor Stop button, Feed Stop Button, Coolant Switch: Off/On
Six Slides
2nd Position Shelf Slide
5th Position - Logan Electric Air Trip Threading
6th Position - Pick Off Spindle with Collet
6th Position - Back Working Slide
8th Position - Stock Depletion and Feedout
Logan HI/LO Clutches
LED Work Lights Both Sides
Universal Chip Conveyor
Pneumatic Air Pressure Filters and Gauges
Coolant System
Stock Stand & Reel