Description

The 620 is a 20mm (.787”) automatic bar capacity Multi-spindle with an AC drive for both the spindle and feed. It has 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 620 to hold much tighter tolerances then your standard multi-spindle. It can be equipped with spindle stopping, eliminating secondary operations. It can also be equipped with an automatic bar loader or set up as a chucker.

Features

  • 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

Specifications

TECHNICAL DETAILS 620AC 620SAC
Main Spindles 6 6
Max Bar Diameter 20mm (0.787″) 20mm (0.787″)
Spindle Draw Tube I.D. 28mm (1.102″) 28mm (1.102″)
Max Bar Feeding Length 100mm (3.937″) 100mm (3.937″)
Spindle Speed Range 500-6500 rpm 500-4500 rpm
Drive Motor 9kW 9kW
Idle Time 0.6s 0.6s

OPTIONS:

  • Feeding, clamping and bar stop in the 3rd station
  • Device for the general stop of spindles – 620SAC version
  • Hydraulic oriented stop of spindles – 620SAC version
  • NC oriented stop of spindles – 620SAC version
  • Pick-up spindle with hydrauliccally controlled collet clamping
  • Brake of the pick-up spindle
  • Pick-up tool slide with a mechanical drive
  • Tool holders
  • Tapping and thread chasing attachments
  • Thread rolling with two roller dies
  • Attachment for outer polygon machining and thread milling
  • Attachment for internal polygon machining
  • Cams for frontal, cross and compound slides
  • Necking-down attachment High-speed drilling attachment
  • Rotary reaming attachment
  • NC compound slides for the 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