Knuth CNC Cycle Lathe Numturn 320 GP

21.377,50 EURplus 16 % tax, excl. Shipping costs

Product No.:
No longer available (abroad may vary)
Weight per unit:
1200 kg

Knuth CNC Cycle Lathe Numturn 320 GP


Easy to use and very flexible - the ideal entry-level machine for cost-effective batch productions

  • heavy-duty horizontal machine bed features v-block guides for high load capacity
  • induction-hardened, ground guideways
  • infinitely variable spindle speed
  • preloaded ball screws and powerful servo-motors ensure dynamic longitudinal and transverse feeds
  • hydraulic 150 mm chuck with adjustable holding force
  • 6-station tool turret for high productivity
  • user-oriented GPlus 450 control with excellent graphical support
  • easy data exchange - the control can be connected to a network and has a USB port
  • automatic operation by defining individual cycles
  • easy set-up and operation via a standard electronic hand-wheel
  • automatic central lubrication for guideways and support

Specifications - Numturn 320 GP - CNC Cycle Lathe

working area  
workpiece length (max.) 750 mm
turning diameter over bed (max.) 330 mm
turning diameter over support (max.) 160 mm
travel X-axis 270 mm
travel Z-axis 720 mm
speed range 100 - 2500 rpm
spindle mount A2-5
spindle bore 40 mm
hydr. jaw chuck Ø 150 mm
rapid feed X-axis 4000 mm/min
rapid feed Z-axis 7600 mm/min
feed speed Z-axis 4000 mm/min
feed speed X-axis 3000 mm/min
tool head  
number of tool stations 6 Pieces
tool shank dimensions 14x14 mm
tailstock taper MT 3
tailstock quill diameter 32 mm
tailstock quill stroke 100 mm
positioning accuracy X-axis 0,02 mm
positioning accuracy Z-axis 0,025 mm
repeatability X-axis 0,012 mm
repeatability Z-axis 0,016 mm
drive capacity  
motor rating main drive 2,2 kW
motor rating X-axis 1,6 kW
motor rating Z 1,6 kW
motor rating coolant pump 0,125 kW
measures and weights  
overall dimensions 2150x1160x1660 mm
weight 1200 kg

Control - Numturn 320 GP - CNC Cycle Lathe

GPlus 450 Drehen

GPlus 450 - Windows-based CNC control for lathes

  • The GPlus 450 features a 17“ TFT color monitor with touch-screen display to display all data for a user-friendly programming experience and easy operation
  • Status messages show the user the current state of the control
  • Frequently used machining sequences can be programmed quick and easy using the graphics-based Cycle Editor.
  • With the use of Input masks, the Cycle Editor guides the operator intuitively and self-explanatory through the editing steps. A separate Help Graphic is available for every definable parameter
  • Knowledge about the G and M Code Command Set or special programming language are NOT needed. However, experienced users have the ability to use DIN/ISO programming to create NC programs.
  • Graphic simulation with integrated zoom function for a detailed display of actual chip removal
  • A standard 10/100 MBit Ethernet interface and USB port allow fast data transfers from externally created programs (CAD/CAM) and saving these on the GPlus 450 hard drive
  • single CPU concept (advantage: ties up only 2% of the system capacity)
  • 40 GB storage, 2.0 GHz Intel Celeron processor, 256 MB RAM
  • block processing time: 450 NC blocks per sec
  • worldwide remote diagnostics
  • Profibus, CANopen, DeviceNet implementation is possible
  • machine can be integrated in factory networks
  • technology-specific cycles for turning

Cycle overview T (Turning):

  • plain turning, facing, taper turning, radius turning, plunge-cut, recessing forms E and F, thread turning, multiple thread turning, contour turning

Why PC Technology?

  • PC Technology serves as platform for high-performance CNCs, since it allows us to automatically take part in the development programs of leading manufacturers of motherboards, hard drives, software, and operating systems. Thus, these manufacturers provide us with an "extended workbench". The rapid development of these components gives the KNUTH GPlus 450 a special edge.
  • Optionally, the GPlus 450 software may be installed on a regular office PC (System Requirements: Intel processor) whereby the user interface is fully identical with the machine control user interface. This allows for a very realistic operation and programming training of newcomers. The created NC programs can be tested and simulated and are fully executable on the machine's control.

Maximized PC power results in optimized speed, surface quality, and accuracy of the machine tool and ensures high dynamics and ease of use. This makes the GPlus 450 ideally suited for a large variety of machining technologies, e.g. turning. Programming of technology-specific machining cycles is quick and easy; therefore, this control can be used for both single part and small batch productions.

The portable hand control unit features an ergonomic design with two Acknowledge buttons (safety enable). The machine axes can only be moved, if one Acknowledge button is activated. Two rotary selector switches are provided for axis selection and feed speed setting. Additionally, the hand control unit is equipped with an emergency stop button, an electronic hand-wheel and machine-dependent function keys to simplify machine set-up.


Standard equipment - Numturn 320 GP - CNC Cycle Lathe

GPlus 450 control, electronic hand-wheel, hydr. 3-jaw chuck Ø 150 mm, 6-station turret, coolant system, totally enclosed work space, automatic central lubrication, fastening bolts, work lamp, Ethernet, USB interface, operating tools, operator manual

Accessories / Tools - Numturn 320 GP - CNC Cycle Lathe

Live Centers, assortment MT 3
Live Center MT 3
Power Worker Metal Cutter
Coolant Concentrate 5 Ltr.
Quick-Set Spindle Bore Stop Size 5 38-48mm
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