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1-5/8" RB-6

1-5/8" RB-6 Automatic Multi Spindle Lathes

We have in stock National Acme 1-5/8" RB-6 automatic screw machines for sale, and can rebuild, retool, and/or retrofit any of our used Acme Gridley screw machines to specifically meet your needs. JEM Automatics guarantees the performance of all Acme Gridley screw machines we rebuild. Optionally, turnkey setup services can be provided, where we would supply the machine fully tooled and already proven to produce your part automatically and within tolerance before it is delivered to your plant. 

The Acme Gridley 1-5/8" RB6 screw machine is a 6 spindle automatic lathe bar machine or collet chucker machine. Standard multispindle bar machine specifications and capacities shown are for reference only, as a custom retrofit by JEM may improve upon or modify these specifications. Many of the National Acme standard equipment options and attachments available to configure an Acme Gridley 1-5/8" RB6 screw machine are listed here. Please use our quick RFQ form below and we will review your specific requirements and follow up with a machinery quotation and/or recommendation for your consideration.

 

Acme Gridley 1-5/8" RB-6 Screw Machine Equipment and Attachments

(equipped based on your tooling setup)

Base Component Options:

  • Lower Cross Slides - 1st & 6th position
  • Upper Cross Slides - 3rd & 4th position
  • Intermediate Cross Slides - 2nd & 5th Position
    • Shelf Slide or Pocket Slide
  • End Tool Slide Drill Holders
    • Specify - 1st, 2nd, 3rd, 4th, 5th, or 6th position
  • One Set Collet Tubes and Collet Nuts
  • One Set of Pusher Tubes
  • One Set of Cams and Gears as mounted
  • One Set of National Acme style Splash Guards
    • Optional JEM Custom Designed High Quality Guarding
  • Adjustable Stock Stop
    • Optional Air Stock Stop with Stock Depletion Controls
  • Chip Conveyor - Auger Style or flat Universal Conveyor
  • Coolant Pump - Geared Pump or Centrifugal Pump
  • Main Drive Motor and Associated Push Button Controls
    • Specify Line Voltage - 240 or 480 VAC 3-phase standard
  • Stock Reel and Stand


Available 1-5/8" RB-6 Attachment Options:

  • Threading / Tapping Attachment in 3rd, 4th, or 5th Position
    • Air Trip Universal Threading Attachment, or Plain Threading Attachment
    • Optional Upgrade to JEM Linear Sensor 0.001" Tapping Control
  • Reaming Attachment in 3rd, 4th, or 5th Position
  • Air Pick-Up / Pick-Off Attachment in 5th Position
  • Back Finishing / Back Working Attachment in 5th Position
    • Air Operated Back Finish Attachment, or Cam Driven Back Finish Slide
  • High Speed Drilling Attachment
  • Rotary End Slotting / Synchronous End Milling Attachment


Other Possible Upgrades & Screw Machine Retrofits:

  • Spindle Stopping Mechanism & Stopper Machine Conversion
  • Collet Chucker Screw Machine Conversion & Retrofit
  • Water Soluble Coolant & Spindle Carrier Seal Retrofit
  • TechControl Electrical Upgrade Package for Mechanical Machines
  • TechDrive Servo Machine Conversion with FANUC CNC Controls
    • Single Axis Servo Cross Slides
    • Compound 2-Axis CNC Slides
  • Automatic Grease or Lube System for Maintenance Points

 

Sample pictures of used Acme Gridley 1-5/8" RB-6 screw machines in stock for rebuild or retrofit:

 

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Acme Gridley 1-5/8" RB-6 Toolslide and Cross Slide Dimensions

Acme Gridley 1-5/8" RB-6 Specifications

Maximum Stock Capacity - Round 1-5/8"
Maximum Stock Capacity - Square 1-9/64"
Maximum Stock Capacity - Hexagon 1-11/32"
Combined Pusher & Tube - Round 1-23/32"
Maximum Sock Feed Length 7"
End Tool Slide Travel 7"
Upper Cross Slides Travel 2-1/2"
Intermediate Cross Slides Travel 1-1/4"
Lower Cross Slides Travel 2-1/2" 
Main Motor Horsepower 30
Spindle Speed Minimum RPM 152
Spindle Speed Max RPM - Standard
Spindle Speed Max RPM - Spindle Stopper
1640
1270
Idle Time Seconds 3
Weight of Machine - Pounds 27,000
Length of Machine 12'-5"
Length of Machine with Stock Reel and Stand 19'-10"
Width of Machine 4'
Lubrication Reservoir Capacity - Gallons
Lubrication Pump Flow Rate - GPM
20
3
Coolant Reservoir Capacity - Gallons
Coolant Pump Flow Rate - GPM
200
60

 

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JEM Automatics is a FANUC Authorized CNC System Integrator

 We are a FANUC Authorized CNC System Integrator

JEM Automatics & Tooling, Inc.


22845 Hoover Road
Warren, Michigan 48089
v: (586) 755-7300
f: (586) 755-1229
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