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A2-5 Finishing Sub-Spindle, 6.5" Chuck

   
Available for ST-30 and ST-35 models
  • A2-5 Spindle Nose
  • 6.5" Chuck Size
  • 4100 rpm Speed

OVERVIEW

DOCUMENTS

VIDEOS

AVAILABLE ON THESE MACHINES

Why a Sub-Spindle ?

Sub-Spindle Benefits:

  • Allows for done-in-one part machining processes 
  • Fully synchronized, on-the-fly part pass-off (up to 4100 rpm)
  • Increases productivity
  • Improves part quality
  • Reduces scrap by minimizing part handling
  • Reduces secondary setups
  • Easy programming, with Z-axis mirroring capability
  • Works well with bar feeder and parts catcher machine configurations
  • Powerful servomotor drive provides generous torque for finishing operations

Sub-Spindle Cutting Demo

Sub-Spindle Live Tooling Demo

Sub-Spindle Programming

Sub-Spindle programming is made simple by the Haas control. Forget about having to program the Z-axis in the positive direction. Simply program the Sub-Spindle operations the same way you would for the Main Spindle, insert G14 (Secondary Spindle Swap) at the Sub-Spindle Tool Call in the program, and the control does everything for you – from turning on the spindle in the correct direction, to opening and closing the chuck, to turning on the coolant, and more. 

The Main and Sub-Spindle can fully synchronize, so you can pass-off a part with the chucks turning. The Sub-Spindle also is capable of phasing (orientation), so you can grip parts with odd shapes. 

A dedicated active G-code display on the control lets you know the status of both spindles at all times. 

 

Sub-Spindle Turrets and Tooling Kits (ST-30, 30Y, 35, 35Y)

The A2-5 Finishing Sub-Spindle Option requires the BMT65 turret option, with or without live tooling. The BMT65 turret is standard on all Y-axis lathes. 

When the Finishing Sub-Spindle option is ordered, the Included Tool Kit is replaced by a new one, as described below. The Tool Kit is compatible with the BMT65 Turret.

Inch version of the BMT65 Tool Kit contains the following:

  • 3 each BMT65 1" Twin OD Toolholders
  • 2 each BMT65 1.25" Twin ID Boring Holders
  • 1 each BMT65 1.5" ID  Split Boring Bar Holder

Metric version of the BMT65 Tool Kit contains the following:

  • 3 each BMT65 25 mm Twin OD Toolholders
  • 2 each BMT65 32 mm Twin ID Boring Holders
  • 1 each BMT65 40 mm ID  Split Boring Bar Holder

Sub-Spindle Included Parts Ejector

A very high-volume production setup common with sub-spindle lathes involves a bar feeder and a parts catcher. This trio of options allows for extended periods of unattended parts machining. 

This is why we include a Parts Ejector with every Sub-Spindle Option. The Parts Ejector bolts directly to the chuck, and provides a very simple way to eject a finished part into the parts catcher chute, for continual machine operation without opening the door. 

Note:

  • The following charts are for reference only.
  • These power numbers are based on 240V service, supplied at the required amperage.
  • Actual results may vary depending on the supplied power and the operating conditions.
  • Haas spindles will provide these peak power numbers (which equate to 200% spindle load) for 3 minutes, 
    150% spindle load (75% of the peak number) for 10 minutes, 100% spindle load (50% of the peak number) continuously.
Sub-Spindle S.A.E METRIC
Chuck Size 6.5 in 165 mm
Spindle Nose A2-5 A2-5
Max Speed 4100 rpm 4100 rpm
Max Sync Speed w/Main Spindle 4100 rpm 4100 rpm
Chuck Throat Ø 1.81 in x 1.60 in DEEP Ø 46.0 mm x 40.6 mm DEEP
Drawbar Adapter Bore Ø 1.81 in x 3.09 in DEEP Ø 46.0 mm x 78.5 mm DEEP
Drawbar Bore (NON-THROUGH) Ø 1.03 in x 4.91 in DEEP Ø 26.2 mm x 124.7 mm DEEP
Spindle Bore (without chuck and drawbar installed) 2.31 in 58.7 mm
Integrated Brake Torque 17 ft-lbf 23 N/m
Spindle Orientation Accuracy (Requires SO) ± 0.02 ° ± 0.02 °
Rapids (B-axis) 400 ipm 10 m/min

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All prices and specifications subject to change without notice. Freight, rigging, state & local taxes, and dealer installed accessories are not included. Not responsible for misprints or typographical errors. Machines shown with optional equipment. Actual product appearance may differ.