Our finishing sub-spindle for ST-30 and ST-35 turning centers – including Y-axis models – will not only make you more productive, and but will also provide new options for finishing the 2nd-op side of your parts.
This affordable A2-5 spindle is equipped with a 6.5-inch hydraulic chuck, and will fully synchronize with the main spindle to provide effortless “in-cycle” part handoff. This allows you to finish-off the “other half” of your part in a single setup – simply load up your raw workpiece, and the next time you open the door, you’ll have a finished part. A built-in part ejector propels the finished part into the optional parts catcher for automated operation.
Note: Not compatible with the BOT turret, or the tailstock option. The sub-spindle is compatible with the APL; however, the APL can only load/unload parts from the main spindle. Availability may vary by region.
Watch live tool milling, drilling, and tapping, featuring our Finishing Spindle and ST-10Y Turning Center.
|Sub-Spindle Nose Size and Maximum Speed||A2-5 / 4100 rpm||A2-5 / 4100 rpm|
|Sub-Spindle Maximum Synchronization Speed with Main Spindle||4100 rpm||4100 rpm|
|Sub-Spindle Chuck Size||6.5" Hydraulic Chuck||165 mm Hydraulic Chuck|
|Sub-Spindle Chuck Throat||1.8" Diameter x 30.0" Deep||46 mm Diameter x 762 mm Deep|
|Sub-Spindle Bore (without chuck and drawbar Installed)||2.33" Diameter||59 mm Diameter|
|Integrated Brake Torque||17 ft-lb||23 Nm|
|Rapid Speed (B-axis)||400 ipm||10 m/min|
Spindle Orientation Accuracy
(Requires Spindle Orientation Option)
|± 0.02 degrees||± 0.02 degrees|
Note: Drawbar dimensions for third-party workholding are available on the layout drawing for each lathe model.
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.
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:
Metric version of the BMT65 Tool Kit contains the following:
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.
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 three minutes,
150% spindle load (75% of the peak number) for 15 minutes, 100% spindle load (50% of the peak number) continuously.
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All prices and specifications subject to change without notice. Freight, rigging, state & local taxes, vendor installation charges, and dealer installed accessories are not included. Not responsible for misprints or typographical errors. Machines shown with optional equipment. Actual product appearance may differ.