The 657 57mm (2.250”) and 667 67mm (2.625”) automatic bar capacity Multi-spindles come with an AC drive for both the spindle and feed. The 657 can optionally have a second AC spindle drive allowing each station to choose the optimal RPM for the machining operations performed In each position. There are 6 cross slides, 6 end working slides, and 4 Longitudinal slides in the 1, 2, 4 and 5 positions.  Using the longitudinal slides in conjunction with the cross slides will create two axis movement in these 4 positions, and optionally, can be controlled by CNC for more complex shapes. The slides are independently cammed for optimum feed rates for each position. The spindle carriage is manufactured with a high precision face gear lock up that allows the 657 and 667 to hold much tighter tolerances than your standard multi-spindle. The 657 can also be equipped with spindle stopping, eliminating secondary operations. The 657 and 667 can also can be equipped with an automatic bar loader or set up as a chucker.


  • Feed out in the 6th Position
  • Standard Rock Reel
  • Optional Automatic Barloader or Chucking
  • Cam Tower Overload Clutches
  • Drumlocking and Positioning by a Precision Face Gear
  • Heavy Cast Iron Base for Improved Rigidity and Accuracy
  • Heavy Backworking with Separate Pancake Slide Cutoff and Backworking
  • Optional CNC Backworking Slides


Main Spindles 6 6
Max Bar Diameter 57mm (2.250″) 67mm (2.625″)
Spindle Draw Tube I.D. 66mm (2.598″) 78mm (3.070″)
Max Bar Feeding Length 160mm (6.299″) 160mm (6.299″)
Spindle Speed Range of AC 200-3200 rpm 200-3200 rpm
Spindle Speed Range of SAC 200-2750 rpm
Spindle Stopping No, Yes No
Drive Motor 30kW 30kW
Indexing Time 1.25s 1.25s


  • Device for the general stop of spindles – 657SAC version
  • Hydraulic oriented stopping of spindles – 657SAC version
  • NC oriented stopping of spindles – 657SAC version
  • Bar stock feeding attachment in the 3rd station
  • Pick-up spindle with hydraulically controlled collet clamping
  • Brake of the pick-up spindle
  • Mechanically controlled tool slide for the cut-off side machining in the 6th and 3rd stations
  • Tapping and thread chasing attachments
  • High-speed drilling attachment
  • Reaming attachment
  • Attachment for a face milling at rotation and at spindle in standstill
  • Push-broaching attachment
  • NC drives of rotary tools
  • Necking-down attachment
  • Drilling, milling and threading units
  • Radial thread rolling
  • Workpiece marking
  • NC compound slides for the 1st, 2nd, 4th and 5th stations
  • Preparation for the automatic bar magazine
  • Preparation for the oil mist exhaustion
  • Selection of the equipment for swarfs carrying out and coolant in an independent sedimentation tank
  • High-pressure coolant and tool wash-out Setting-up for a part machining and the machine acceptance in the TAJMAC–ZPS plant