HEAVY DUTY PRECISION GAP BED LATHES

Model # GT-3280 and # GT-32120

4-1/8” LARGE SPINDLE BORE 

“GMC” Precision Gap Bed Lathe # GT-3280, 32”x80”, 4-1/8”bore ., 15HP

“GMC” Precision Gap Bed Lathe # GT-32120, 32”x120”,4-1/8”bore, 15HP           

Come with free taper attachment installed

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 20-1/2”
  • Heavy Duty main motor 15 HP
  • 12 spindle speeds from 30-1,400 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
  • One year warranty for parts

Heavy Duty Gap Bed Lathes Specifications

         GT-3280        GT-32120
Max. swing over bed                                   32”
Max. length of workpiece              80”            120”
Max. swing over cross slide                                22-1/16”
Max. Swing in gap                                    39-1/2”
Width of Bed                                     20-1/2”
Effective length in gap to spindle                                       10”
Effective length in gap to chuck jaws                                       7”
Spindle bore                                  4-1/8” 
Taper of spindle center                                    MT6
Spindle speeds                 30-1,400 rpm / 12 steps
Longitudinal feeds               0.0023-0.093 IPR, 65 kinds
Cross feeds               0.0011-0.04 IPR, 65 kinds
Inch threads 28-2   TPI, 27 kinds

28,14,7,3-1/2, 27, 24, 12, 6, 3, 22, 11, 5-1/2, 2-3/4, 20, 10, 5, 2-1/2, 18,9,4-1/2, 2-1/4, 16, 8, 4, 2, 11-1/2, 19

Metric threads                   1-14 mm , 22 kinds
Module threads                  0.5-7 mm, 18 kinds
Diameter pitch threads                   56-4 DP , 24 kinds
Max. travel of top slide                              5-3/4”
Max. travel of cross slide                             17”
Longitudinal rapid traverse                        18 ft / min.
Cross rapid traverse                         8 ft / min.
Diameter of tailstock quill                               3”
Max. travel of tailstock quill                               6”
Taper of tailstock quill center                              M.T. # 5
Max. weight of workpiece                             2,800 LBS
4-way tool post size                             1” x 1”
Longitudinal leadscrew diameter / pitch          Diameter:   3”               Pitch: 2 TPI
Main Motor 15 HP, 220V/440V, 3 phase, prewired on 220V
Rapid traverse motor 1/3 HP, 220V/440V, 3 phase, prewired on 220V
Coolant pump motor 1/8 HP,220V/440V, 3 phase, prewired on 220V
Net weight, approx.       9,350 LBS       10,350 LBS
Overall dimensions, LxWxH    142” x 46” x 68”    182” x 46” x 68”

Standard Equipment (free) for “GMC” Heavy Duty Lathes

Model # GT-3280 and GT-32120:

  • Free Taper turning attachment, , installed
  • Automatic longitudinal kick-out carriage stop system for GT-3280 only
  • 16” 3-jaw chuck with top reversible jaws
  • 20” 4-jaw chuck
  • 25” Face plate
  • 10” drive plate
  • 6-3/4” – 12-1/2” large steady rest with roller jaws
  • 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 for GT-3280 only
  • Section splash guard on Apron for GT-32120 only
  • (2) dead centers and (1) reducing sleeve
  • Thread chasing dial
  • Tool box

Optional Equipment for “GMC” Heavy Duty Lathes

  • Leveling pad
  • DRO for #GT-32120, NEWALL # NW18120, 2 axis, free install
  • DRO for #GT-3280, NEWALL # NW1880, 2 axis, free install
  • DRO for # GT-32120, SINO, # SINO 18120, 2 axis, free install
  • DRO for # GT-3280, SINO, # SINO 1880, 2 axis, free install
  • 3/4”- 5” small steady rest with brass tips
  • 12” to 18-1/8” large steady rest with brass tips
  • 5-C Hand lever type collet closer # 5C, “JFK” USA, free install
  • 33 pc 5C collet set, from 1/16 to 1-1/16” by 32ndth, # 900-0014.
  • Taper turning attachment, free installation
  • Live center for tailstock MT# 5, part# 900-0050-05
  • 5pc Indexable carbide turning set # 2003-0005
  • 3/8” carbide insert # 2003-0014

Validity:         30 days

Delivery:         both models are in stock

Terms:            net 30 days

FOB:               Ontario, Ca ( Los Angeles area )