18″ CNC-Ready XYZ Base w/ Ball Screws
2-3 week lead time
Purpose of the Sherline Mill XYZ Bases
The Sherline ball screw mills can be purchased without the headstock and motor/speed control. This allows owners of other Sherline machines to swap the headstock and motor/speed control from one machine to the ball screw mill in approximately 60 seconds. This package offers a savings compared to the price of our full ball screw mills.
The Axes of Movement of a Sherline 6858 Ball Screw Mill
The table left/right movement is referred to as the X-axis. The table in/out movement is the Y-axis. Headstock up/down movement is referred to as the Z axis. The headstock can also be rotated on its saddle on Sherline mills (#4), the column ram can be moved in and out (#5), and the Z-axis column can be tilted forward and back (#6).
Standard equipment for the 685801 XYZ base:
- 18″ Mill Base
- Electroless nickel/Teflon coated mill saddle
- 15″ Extended Column Bed with nickel/Teflon plating
- Extra-Rigid Column Base
- 18″ Extended Mill Table
- Stepper-motor mounts with high-torque couplings
- The handwheels are included and can be mounted to the end of the stepper motors to maintain manual control when needed.* 2-1/2″ (63mm) adjustable “zero” handwheel on the Z-axis and 2″ (51mm) adjustable “zero” handwheels on the X- and Y-axes. Each handwheel has laser engraved aluminum handwheel collars
*NOTE: CNC-ready machines cannot be operated manually until stepper motors are installed.
- Oil reservoirs on the X/Y axes and the Z-axis to help keep critical parts lubricated.
- Brass leadscrew cover that keeps chips off the rear of the Y-axis leadscrew
- Accordion way cover
- Travel: X=13.65″ (347 mm), Y= 11.0″ (279 mm), Z=9.25″ (235 mm)
Always wear safety glasses when operating machine tools.
(table to spindle)
|12.875″ (327 mm)|
(w/ headstock spacer)
|Travel, X-Axis||13.65″ (347 mm)|
|Travel, Y-Axis||11.00″ (279 mm)|
|Travel, Z-Axis||9.25″ (235 mm)|
|Hole through spindle||.405″ (10 mm)|
|Spindle nose thread||3/4″-16 T.P.I.|
|Spindle nose taper||#1 Morse|
|Spindle runout of Morse taper||.0005″ or less|
|Handwheel graduations||.02 mm|
|Electronically controlled spindle speed range||70 to 2800 RPM|
|Width Overall*||20.375″ (518 mm)|
|Depth Overall*||Base footprint: 21.125″ (537 mm); With fully extended brass leadscrew cover: 28.375″ (721 mm)|
|Height Overall (Max.)*||26.5″ (673 mm)|
|Table size||2.75″ x 18.00″ (70 x 457 mm)|
|Hold-down provision||3 T-Slots (with 7″ x 13″ tooling plate)|
|Shipping Weight||82 lb. (37.19 kg)|
|Movements in addition
to X-, Y- and Z-axes
|Headstock rotation (90° left/right), Column pivot (90° Fwd/Bk), Column travel (In/Out) 5.5″ (140 mm)|
*Overall dimensions include motor and speed control
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