Mini-Mill 3

​CNC Mini-Mill/3 The most affordable aircraft-grade aluminum frame, micro milling machining system on the market.

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The Minitech Mini-Mill/3 uses THK caged ball linear bearings, and high precision ball-screws for all stages. This is the same high-quality components that larger CNCs have.

Minitech uses only the best quality components.  Our products are manufactured with best-in-class materials, and assembled using the finest and most advanced techniques on the market. We are proud to put our stamp of approval on every one of our machines, and are sure that you will be satisfied with the results. 

The CNC Mini-Mill/3 is ideal for microfluidic, micro-electromechanical, Nanotechnology Industries, Jeweler, Research Laboratories and many others.

Hundreds sold in over 30 countries worldwide.

The CNC Mini-Mill/3 is available as a standard three axis machine with optional 4th Axis Rotary Stage, or 5 Axis Trunnion Table.

LM Guides with caged ball technology

THK Caged Technology employs a synthetic resin cage with a patented curvature that cradles each ball and separates it from the next one. The spaces between the rolling elements retain grease and act as a lubrication system. The incorporation of THK Caged Technology in this new LM Guide eliminates the need for frequent lubrication and results in long-term maintenance-free performance. The low particle generation of this design makes it ideal for precision equipment applications including medical, semiconductor equipment, and measuring instruments.

STANDARD FEATURES
The CNC Mini-Mill/GX uses production grade components that require very little maintenance and includes precision ball screws, brushless spindle motor, low run-out spindle, splash guards, and precision linear rail ways. Standard axis drive motors are advanced micro-stepper driven.

MACHINE SPECIFICATIONS:

STANDARD FEATURES
The CNC Mini-Mill/GX uses production grade components that require very little maintenance and includes precision ball screws, brushless spindle motor, low run-out spindle, splash guards, and precision linear rail ways. Standard axis drive motors are advanced micro-stepper driven.

  • MACHINE SPECIFICATIONS:
  • Size 22.0″ x 22.0″ x 23.0″ 560 x 560 x550mm
  • Table Size 6.0″ x 20.0″ 133 x 500mm
  • X,Y,Z Axis Travel 12.0″ x 9.0″ x 9.0″ 300 x 200 x 200mm
  • Feed Rates .1 to 100 IPM linear .1 to 50 IPM 3-axis simultaneous .1 to 2500 linear .1 to 1200 mm/min simultaneous
  • Stepper Motors 400 steps per revolution in full step mode, rated at 250 oz. in.
  • Drivers Standard Step Modes: 1:125 Micro stepping mode, 10K Positions per mm, 50K positions per revolution
  • Resolution Standard: 0.0001mm
  • Table Mechanism Dual linear ball bearing slides on each axis, sealed. THK(tm) linear slides – RSR15 series, Caged-ball technology Drive Mechanism THKtm Ball Screw actuator – preloaded and sealed, 5mm pitch, this model achieves no torque fluctuation and no backlash, Positioning repeatability of the ball screw is 0.0004mm, 16mm diameter, 5mm pitch
  • Hold Down Type Table top 1/4″-20 mounting holes, 1″ centers
  • Spindle Rotation Spindle manually rotates 90 degrees in both directions
  • Tool Chuck Collets, 1/8” included other sizes available
  • Machine Weight 225 lbs. 110 Kg
  • Electronics PC Interface USB Drive Type Bi-polar chopper, 10 amp with micro-stepping settings, 125x Micro
  • Number of drives 3, with 3-axis simultaneous control (optional 4th axis) Power Input 110 VAC (220 VAC), converts to 40 VDC
  • Memory Type non volatile memory, needs use of computer to run part programs and control machine
  • Interface TTL signal from serial port (RS-232). All cables supplied Input Logic Up to 8 input TTL signals Output Logic Up to 8 output for limit, home, or safety switches.

Overall Size 22.0″ x 22.0″ x 23.0″ 560 x 560 x 550 mm

Manufactured by Minitech in the USA for worldwide distribution.

​Machines can be modified to meet your specific needs.