Summit Lathes

Summit 26″, 30″ & 33″ Series Big Hole Engine Lathes

The SUMMIT 26-6″, 30-6″ & 33-6″ “Big Hole” engine lathes combine the greatest combination of features available for a lathe in this size range, setting a new standard for machines in this class.

Available in 80″ thru 200″ center distances, these lathes have just the right amount of engineering to afford simplicity of operation, coupled with plain and simple rugged reliability.

The engineering excellence, fine workmanship, materials and impressive specifications of the SUMMIT “Big Hole” engine lathes assure you of greater production and easy, trouble free operation for years to come.

Key Features:
■ Hardened and precision ground extra wide bedways
■ Forged chrome alloy spindle with a 6.1″ or Huge 9.1″ thru hole
■ 18″ gap allowing 35″, 39″ & 41 3/4″ swing
■ Spindle brake
■ Quick change gearbox for cutting inch, metric, module & diametral pitch
■ 4-way rapid traverse
■ Two speed heavy tailstock
■ Extra length taper attachment
■ Option: Rear flange for double chucks on 6.1″ thru hole

Included Accessories:
■ 15 3/4″ 3-jaw chuck (6.1″ spindle bore)
■ 20″ 4 jaw chuck (6.1″ spindle bore)
■ Front & Rear 25″ 4 jaw chucks (9.1″ spindle bore)
■ Steady rest with roller tips (5.9″ – 14.9″)
■ Follow rest
■ Full length splash guard
■ 4 way tool post
■ Halogen work light
■ Taper attachment
■ Coolant system
■ Thread dial


Specifications: Big Hole Lathes
Capacities 26 Series 30 Series 33 Series
  Swing over bed  26" 30" 33"
  Swing over cross slide  18" 22" 24 3/4"
  Swing over gap 35" 39" 41 3/4"
  Length of gap 18"
Headstock
  Hole thru spindle 6.1" only 6.1" or 9.1'
  Spindle type  D1-11 D1-11 / A2-15
   Spindle Speeds (12) 6.1" hole - 13-800
9.1" hole - 11-700
Chucks  
   6.1" Sindle Bore  16" 3-jaw & 20" 4-jaw chucks
   9.1" Spindle Bore  25" Front and Rear 4 jaw chucks
Threads and Feeds  
  Threads per inch - number/range (36) 2-28 TPI
  Metric threads - number/range (65) .08-14mm
  Module threads - number/range (22) .5-7
  Longitudinal feeds - number/range (36) .0019-.0276
  Cross feeds - number/range (36) .009-.0137
Tailstock  
  Travel of spindle barrel 9"
  Diameter of spindle barrel 3 3/4"
  Tailstock center #5
Bed  
  Width of bed 18"
Drive and Motors
  Main drive motor 15 HP
Miscellaneous  
  Shipping weight (approximate)  (120"cc) 9,240 lbs. 9,570 lbs. 9,790 lbs.