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Conventional Lathe

TK770N/840N

  • Cross & Iongitudinal rapid travel
  • Magnetic brake for main spindle
 
Description TK-770N TK-840N
Capacity
Max. swing over bed, mm 770 (30.3”) 840 (33")
Center height, mm 385 (15.2") 420 (16.5")
Max. swing over gap, mm 980 (38.5"),Opt 1020 (40.2"),Opt
Max. swing over cross slide, mm 500 (19.7") 570 (22.4")
Distance between centers, mm 1600 / 2100 / 3100 / 4100 / 5100 / 6100 (63",83",122",162",201"240")
Main Spindle
Spindle nose A2-11 A2-11 A2-15
Spindle bore, mm 105 (4") 153 (6") 105 (4") 153 (6") 230 (9")
Spindle speeds, rpm (18 steps) 23-1293 13-690 23-1293 13-690 5-440
Carriage
Cross slide travel 450 (17.7")
Compound rest travel 250 (9.8")
Tailstock
Tailstock spindle dia. 105 (4.13")
Taistock spindle travel 220 (8.7")
Taistock spindle taper MT 5
Bed
Bed width 450 (17.7")
Tailstock
Lead screw 2 TPI or 12mm / pitch
Metric pitch threads 0.8 - 14 mm / pitch (65 kinds)
Inch threads 2 - 28TPI (36 kinds)
Module pitch threads 0.5 - 7M (22 kinds)
DP threads 4 - 56TPI (36 kinds)
Feeding Range
Longitudinal feeds, mm/rev. 0.05 - 0.70
Cross feeds, mm/rev. 0.025 - 0.35

*The Specifications are subject to change without prior notice.

TK840N x 2100


Inverter type spindle control: (option)

  • 3 steps variable spindle speed.
  • Auto gear change with simple switch selection.
  • Digital display for spindle speed.
  • Quick-stop braking controlled directly by inverter.
  • Constant Surface Speed control for face turning.

Spindle bore & speed with inverter (rpm)

 
Spindle Bore 2.2" 3.3" 4" 6" 9"
TK450 33-3100 - - - -
TK540 - 27-2250 20-1500 - -
TK630 - 27-2250 20-1500 10-800 -
TK770N - - 20-1500 10-800 -
TK840N - - 20-1500 10-800 6-450

Standard Accessories

  • Center sleeve
  • Dead Center
  • Main drive motor
  • Coolant system
  • Work light
  • Tool box with tools
  • Manual

Options

  • 3-jaw chuck
  • 4-jaw chuck
  • Face plate
  • Steady rest
  • Follow rest
  • Micro bed stop
  • Turret type 5 position bed stop
  • Taper attachment
  • Quick change tool post
  • Work light
  • CE mark
  • Rotating center
  • Splash guard
  • Magnetic brake
  • Gap bed
  • DRO