Numturn CNC 420 • ECO


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Equipped With

  Numturn 420 SINumturn 420 SI Eco
Working Area
Workpiece length (max.)39 in
Turning diameter over bed17 in
Turning-¯ over support9 in
Turning length (max.)36 in
Travel X-axis8.7 in
Travel Z-axis36 in
Spindle speed60 - 3,000 rpm
Spindle mountA2-6
Spindle bore2 in
Spindle bore with draw tube1.9 in
Rapid Feed
Rapid Feed X-axis157.48 in/min
Rapid Feed Z-axis314.96 in/min
Tool Head
Number of tool stations8 positions1 positions
Positioning accuracy X-axis0.00024 in
Positioning accuracy Z-axis0.00031 in
Repeatability X-axis0.0002 in
Repeatability Z-axis0.00031 in
Tailstock taperMT 4
Tailstock quill diameter2 in
Tailstock quill stroke4 in
Drive Capacity
Motor rating main drive10.1 Hp
Motor rating coolant pump0.2 Hp
Motor rating X-axis2 Hp
Motor rating Z-axis2.01 Hp
Motor rating X / Z axis1,5 Hp
Measures and Weights
Overall dimensions (length x width x height)113x63x69 in
Weight6,050 lbs

  • Manually transverse the X and Z axis via 2 electronic hand wheels
  • User-oriented cycle interface for easy parts programming - turning cycles with many programming options to create a complete parts program
  • USB port for easy data transfers
  • Induction-hardened, ground guide ways
  • Longitudinal and transverse movements via high-quality preloaded ball screws and servo drives
  • Smart central lubrication system for low-maintenance operation

  • SINUMERIK 808D ADVANCE -- the perfect solution for modern standard machines
  • In combination with a new generation of spindle and axis drives, the SINUMERIK 808D ADVANCE with 8.4" LCD provides an innovative ready-to-use digital CNC solution for modern standard machines
  • This is topped by a guaranteed superior price/performance ratio
  • CNC and drive communicate via a high-speed bus to ensure efficient positioning control plus high precision and optimum cutting performance
  • This globally leading CNC technology provides high performance and power for the control of standard lathes

Advantages - Digital solution provides higher precision:

  • Increased overload capacity supports a faster acceleration and deceleration of machine tools
  • Constant cutting speeds result in an increased surface quality of the workpiece

Increased ruggedness:

  • The SINAMICS features a wide voltage range to prevent machine shut-downs during poor voltage supply conditions. This will significantly reduce machine down-times.
  • During heavy machining operations, an automatic spindle torque adjustment will help protect machining tools and spindle systems.

Increased operator comfort:

  • A fast Ethernet connection facilitates easy start-up and diagnostics of machine tools and simplifies NC program use

  • siemens 808D Advanced TTL control
  • 2 electronic hand-wheels
  • 3-jaw hand chuck ¯ 7.9 inch
  • quick change tool holder WBD 25120
  • automatic central lubrication
  • work lamp
  • operating tools
  • operating manual and programming instructions
  • hydr. tailstock


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