GMC  GT-2680  Lathe - Illustrated
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S
 GMC  LATHE                                            Specifications                                
 Model   GT-2660 , GT-2680 , GT-26120
 Size   26"  x 60" , 26"  x  80" , 26"  x  120"
 Swing  over  bed   26" 
 Distance  between  centers  60" , 80" , 120"
 Max  swing  over  cross-slide   16-1/2" 
 Max  swing  in  gap   34-1/4" 
 Width  of  bed   15-1/2" 
 Effective  length  in gap  to  spindle  9" 
 Effective  length  in  gap  to  chuck  jaws  6" 
 Spindle  hole  dia.  4-1/8" 
 Spindle  D1-8  Camlok 
 Taper  of  spindle  center  MT # 6
 Spindle  speeds  ( 12 )  36 - 1600  RPM
 Longitudinal  feeds  0.0023 - 0.93  IPR, 65  kinds
 Cross  feeds   0.0011 - 0.04  IPR, 65  kinds
 Threads  Details
 Inch  threads  28 - 2  TPI  27  kinds
 Metric  threads  1 - 14 mm  , 22  kinds
 Diamentral  pitch  threads  56 - 4  DP , 24  kinds
 Module  threads  0.5 -   MM , 18  kinds
 Carriage  Details
 Maximum  travel  of  top  slide  5-3/4"
 Maximum  travel  of  cross-slide  14"
 Longitudinal  rapid  traverse  18 ft / Min
 Cross rapid  traverse  8 ft / Min
 Tailstock  Details
 Diameter  of  tailstock  quill  3"
 Maximum  travel  of  tailstock  quill  6"
 Taper  of  tailstock  quill  center  M.T. # 5
 Max.  weight  of  workpiece  2000 lbs
 Motors  Details
 Main  motor  ( Pre-wired  220  V / 3 )  15  HP, 220/440  V, 3  phase
 Rapid  traverse  motor  1/3  HP, 220/440  V, 3  phase
 Coolant  pump motor Pre-wired  220 V / 3 )  1/8  HP, 220/440  V, 3  phase
 Machine  net  weight  Details
 GT-2660  8,150  lbs
 GT-2680  8,700  lbs
 GT-26120  9,350  lbs
 Overall dimensions   Details
 GT-2660   L x W x H  122"  x  45"  x  66"
 GT-2680   L x W x H  142"  x  45"  x  66"
 GT-26120   L x W x H  182"  x  45"  x  66"
GT-2660 , GT-2680 and  GT-26120  LATHES
26  x  60 Lathe , 26  x  80  Lathe  and  26  x  120  Lathe
4-1/8"
Spindle  Bore
GMC  GT-2660 , GT-2680 and GT-26120  Lathes - New 
DESCRIPTION  &  FEATURES:
 
These  New  26"  Swing GMC  GT-2660 , GT-2680  and  GT-26120  metal  cutting  Lathes  carry  a  26"  swing  over  the  cross-slide  and  each  is  powered  by  a  15  HP  main  motor. Both  are  constructed  of  high  tensile  strength  cast  iron  and  are  incorporated  with  induction  hardened  and  ground  bed ways. Each  of  the  lathes  is  equipped  with  rapid  traverse .  These  ISO 9001  certified  lathes  carry  all  hardened  and  precision  ground  gears  &  shafts  within  the  headstock  and  a  automatic  lubrication  system  for  the  headstock  and  feed  box. 12  Spindle  Speeds  range  from  36  to  1600  rpm . The   footbrake  and  a  more  than adequete  4-1/8"  spindle  bore  make  anyone  of  these  lathes  a  great  choice  for  any  machine  shop  floor. 
        
Inch, metric, diametral  pitch  and  module   threading  are  standard  on  each  lathe.
 
More  info  on  standard  features  and  equipment  can be  found  below.
 

Machine Standard Features and Equipment:

 

         ISO 9001 certified

        Large spindle bore 4-1/8

         Adjustable mechanical spindle clutch for spindle start Forward/reverse and brake, spindle brake without stop the spindle motor to longer motor 8 times life than most other Brand lathe with electrical start/stop.

         4-way rapid traverse on Longitudinal and cross ways

        All dual inch/metric dials. 

         solid cast iron machine base

        Heavy Duty guideway width 15-1/2

         Heavy Duty main motor 15 HP

        12 spindle speeds from 36-1,600 rpm

         Oil pump on apron for all ways and leadscrews

         Threading and feeding rate change without changing gears

        Spindle is balanced, hardened and precision ground

         Spindle is supported at 3-point by high precision bearings  

         All gears and shafts are hardened and precision ground

         Guideways induction hardened and precision ground

        Automatic lubrication system in headstock and feed box

Standard Equipment for GMC Heavy Duty Lathes

Model # GT-2660 / GT-2680 and GT-26120:

 

        Free Taper turning attachment, , installed

         12 3-jaw chuck with top reversible jaws

         20 4-jaw chuck with top reversible jaws

        24 Face plate

         10 drive plate

        4-3/4 10-1/4 large steady rest

         1-3 follow rest

        Removable gap

         4-way tools post

        Foot brake

         Halogen Work light

        Coolant system

         Oil pump on apron for lubrication to all ways and leadscrews

        Full length rear splash guard for GT-2660 & GT-2680 only

         Section splash guard on Apron for GT-26120 only

         (2) dead centers and (1) reducing sleeve

        Thread chasing dial

         Tool box

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