CNC Knee Mills

Willis CNC Knee Mills - CNC Metalworking Equipment:

  • Willis CNC Vertical Mill Machines
  • Ranging from:
  • > 9" – 11.8" x 49" – 50" Table Sizes
  • > 32" – 46" X-Axis Travels
  • > 13" – 17" Y-Axis Travels
  • > 16" – 18" Knee Travels
  • > 3hp & 5hp Spindle Motors
  • > R8 & 40 Taper Spindles
  • Call us for a free Willis CNC Vertical Mill Machine quote today! - (419) 537-1717

Machinist’s Dream!

Willis CNC vertical knee mills provide end-users with convenient, versatile, and efficient CNC machining solutions. Offered with multiple CNC controls (i.e. Acu-Rite MillPWR G2 and Fagor 8055), Willis CNC knee mills deliver great value with extremely dependable CNC machining results. NRTL approved machines available upon request.

  • Willis Machinery WM3VS Knee Mill Demonstration

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1250II CNC Vertical Knee Mill

Maintaining all of the standard features accompanied with the Willis conventional knee mills, Willis CNC knee mills also posses ACU-RITE CNC controls with 2 (two) or 3 (three) axis capabilities.

Willis Machinery offers either the "ACU-RITE" MillPWR G2 CNC control on four of its conventional mill machines including the WM3VS, 1050, 1050II, and the 1250II.

  • Willis CNC knee mills all possess precision ball-screws and nuts on all CNC axes

  • These CNC vertical mill machines are offered with 2, 3, 3½, or 4-axis controls

  • A disengageable quill is available on 3 (three) axis CNC knee mill models for manual drilling and tapping

  • Willis, 2 (two) axis, CNC knee mills are equipped standard with a third axis quill scale digital readout display

  • Willis CNC Knee Mills offer semi-automatic operations of full 2 (two) or 3 (three) axis CNC operations.

  • Powerful A/C brushless servo motors provide these CNC mill machines with smooth and accurate positioning

  • An automatic, metered, lubrication system with low level alarm is standard on Willis CNC knee mills

  • Optional Servo or Align power knee feed is also available on Willis CNC mill machines

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Special Features

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One piece construction is superior to our competitor's 2 piece.

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Our design uses a splined pinion shaft which is much stronger and more rigid than the keyed shaft.

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Our standard spring type micrometer adjusting nut provides quick and easy movement for setting spindle depth.

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Gaskets are used to prevent grease and oil leakage.

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One pieces quill housing ensures precise alignment, eliminates vibration, and prevents premature bearing failure.

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Dynamically balanced pulley with special bronze key attached with 2 screws prevents premature breakage.

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Our special power down feed parts are so strong, they can be used over 3,000 RPM spindle speeds. Our 1 piece cluster gear is superior to the much used 3 piece design.

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The splined shaft is much stronger and provides greater safety than the keyed shaft.

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Willis 3HP inverter drive milling head - EV.

Inspection

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  • Spindle Bore Runout.
  • less than 0.0004”
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  • Spindle Running Noise Measuring.
  • less than 73 db at 1 meter
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  • Parallelism of Table Surface to Table Cross Travel Movement.
  • less than 0.0008" per 12" of travel
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  • Squareness of Table Surface to Knee Travel.
  • less than 0.0008" per 12" of travel
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  • Squareness of Table Surface to Quill Travel.
  • less than 0.0008" per 5" of quill travel
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  • Measuring of Squareness of longitudinal Travel to Cross Travel.
  • less than 0.0008" per 20" of travel
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  • Parallelism of Table Surface to Table Longitudinal Movement.
  • less than 0.0008" per 20" of travel
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  • Parallelism of Table Surface to Ram Cross Transverse Movement.
  • less than 0.0008" per 12" of travel
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Stiffness of Head and Quill Combination.

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