NEW MILLTRONICS HM20 Linear Way Horizontal Machining Center

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  • Milltronics 8200-B Series CNC control
  • 24 pocket double arm ATC
  • 10,000 RPM inline spindle
  • BIG-PLUS® dual contact spindle
  • Coolant Through Spindle Ready
  • Automatic lubrication
  • Chip auger
  • 2 Speed 24/15 HP Inline spindle motor
  • Spindle Chiller
  • Spindle Air Purge
  • Inverted X axis rail design
  • Linear Guide Ways on all axes
  • Flood coolant
  • 1000 ipm rapid traverse rate (X,Y)
  • Work light
  • Rigid tapping
  • LCD hour meter
  • Single spare “M” function
  • 12" LCD color display
  • Solid model graphic display
  • 1 GB program storage memory
  • DXF file import
  • Full Enclosure
  • Networking



X axis travel                                                                       40" (1015 mm)

Y axis travel                                                                       34" (860 mm)

Z axis travel                                                                       20" (510 mm)

Table size                                                                           44.5" x 20" (1130mm x 510 mm)

Allowable table load                                                            2500 lbs. (1135 kg)

T-Slot size                                                                          .63" (16 mm)


Spindle nose to table center                                                5-25" (125-635 mm)

Spindle center to table surface                                            4.5 - 38.5" (115 - 975 mm)

Spindle taper                                                                      ISO No. 40 Big Plus®

Spindle speed (Std)                                                             10,000 RPM

Spindle speed (Opt)                                                            15,000 RPM

AC spindle motor (Std)                                                        24/15 HP (18/11 kW) Inline Delta/WYE

AC spindle motor (Opt)                                                       35/25 HP (26/18 kW) Inline Delta/WYE

Spindle torque (Std)                                                            85 ft-lbs (115N.m)

Spindle torque (Opt)                                                            122 ft-lbs (165 N.m)


ATC Type                                                                           Double Arm

Number of tools                                                                  24

Tool shank                                                                         CT40

Pull stud                                                                                                MAS 60° Retention Knob Style CT-Flange 40 Taper

Max. tool diameter / adjacent pot empty                               4" / 5" (100 mm / 125mm)

Max. tool length                                                                  9" (230 mm)

Max. tool weight                                                                 15 lbs. (7 kg)


X, Y, Z axis rapid traverse rate                                            1000 IPM (25.4 m/min)

Max. cutting feed rate                                                         500 IPM (12.5 m/min)

Least command increment                                                  0.0001" (0.001 mm)

Positioning accuracy                                                           +/- 0.0002" (+/- 0.005 mm)

Repeatability                                                                       0.00015" (0.0038mm)

X axis thrust (peak)                                                            1500lbs (680 kg)

Y axis thrust (peak)                                                            3300lbs (1500 kg)

Z axis thrust (peak)                                                             1500 lbs (680 kg)


Table work area – Table must be machined for clamps         18.5" (470 mm) dia

Table work area – 18 mm "T" Slots                                      18.5" (470 mm) dia

Table height                                                                       9.44" (240 mm)

Table load capacity                                                             1550 lbs (700 kg)

Table clamping force                                                          8750 lbs (3970 kg)

Table clamping positions – Number/degree                          4 / 90°

Positioning accuracy - 90° clamping position                       ± 4 Arc-seconds

Repeatability - 90° clamping position                                   ± 1 Arc-seconds

Table Weight                                                                      550 lbs (250 kg)

 OPTIONAL ROTARY TABLE: - 4th Axis contouring

Table work area                                                                  20" (500 mm) Sq.

Table Height                                                                       8" (200 mm)

T Slots (Number) width/spacing                                          (5)  0.56/4" (14/100 mm)

Table load capacity                                                             4000 lbs (1815 kg)

Table clamping force                                                          800 lbs (1085 nm)

Table clamping positions                                                     360,000

Table positioning accuracy                                                  ± 20 Arc-seconds

Table position repeatability - Unidirectional                          10 Arc-seconds

Table weight                                                                       1000 lbs (550 kg)




Machine Height                                                                   118" (3000 mm)

Floor Space Required (W x D)                                             137" x 133" (3480 x 3380 mm)

Machine Weight                                                                  10,000 lbs. (4545 kg)

Power required                                                                   48 KVA /125 amps

Voltage required                                                                 208-240 Volts / 3 Phase



The bed, column, and saddle are composed of Meehanite GA-50 grade cast iron, which includes very high dampening characteristics. The one piece bed casting and column are stress relieved to ensure machine geometry is maintained throughout the life. Wide spacing of the linear guide ways ensure optimal support for the table and saddle in full travel of each axis. Heavily ribbed castings provide superior dampening for high speed machining and aggressive milling. The mating surfaces of all critical contact points including the column, linear bearing blocks, linear guide ways, and table surfaces are fully ground to optimize fit and accuracy.


The X, Y, & Z-axis are standard with heavy-duty 35mm linear guide ways. Roller guide ways are used on the Y axis. Roller type guide ways have 44% more contact than standard linear ways. The guide ways are widely spaced (X 255mm, Y 517mm, Z 291mm) to eliminate table pitch and deformation. The X axis guide ways are inverted allowing the bearing blocks to remain centered under the spindle promoting additional rigidity while cutting. All the guide ways are placed against ground shoulders to maximize rigidity and geometry.


The 10,000 rpm spindle or optional 15,000 rpm cartridge style spindle is standard with a Big Plus® dual contact technology. Taper and face contact proves to provide the most rigidity allowing for decreased tool deflection and cycle times. The permanently greased spindle bearings require no maintenance. The 10,000 rpm spindle is driven by a 2 speed 24/15 HP (18/11 kW) In-line AC servo motor. In-line motor designs reduce vibration and heat improving part finishes and tolerances. The four 70 mm ceramic spindle bearings help with the concern of thermal growth on the 15,000 rpm spindle. Rigid tapping is standard.


Each axis is driven using a high precision, fully ground ball screw. Each of the axes ball screws are double anchored to allow exceptionally fast feedrates. All the ball screws are supported using angular contact thrust bearings and are perfectly centered between the linear guide ways. The 32mm ball screws are driven directly using direct-coupled AC servo type drive motors eliminating vibration, noise, and backlash.


The 24 pocket double arm ATC provides reliable tool changes. The retract feature of the ATC keeps the tool changer unit out of the work envelop during machining operations


The machine enclosure is made of heavy duty sheet metal to contain the chips and coolant. The entire machine is fully enclosed. The removable side doors allow direct access to the inside of the machine. The front door opening (40") allows for easily loading and unloading of work pieces. A rear access operator door allow easy access to the spindle area.


A dedicated flood pump provides high volume coolant to the machine tool. The coolant nozzles are fully adjustable to accommodate various tool lengths. The 50 gallon coolant tank provides adequate capacity for any application.


A single, 4" pitch chip auger removes the chips efficiently from the machine.


Automatic lubrication is provided to the linear guide ways and ball screws via way oil. Oil is delivered by metered valves, which precisely control the volume. A low-level alarm on the CNC warns the user preventing possible damage to the guide ways and ball screws.


The edit key enables protection of programs as well as parameters of the 8200-B CNC control. Removal of the key limits a user from loading programs and parameters such as work coordinates and tool offsets. With the edit key in the off position the data in the CNC control is available for editing.


Thermal growth of the spindle is reduced by using a refrigeration system that circulates cooled oil around the spindle increasing the accuracy and promoting longer spindle life.


Options are available to add indexing or full contour rotary tables to the machine. Your choice of two 90° indexing tables, either "T" slotted or unmachined table surfaces for simple indexing or four sided part machining . A full contouring B-axis rotary table is also available. All tables are removable from the machine allowing larger part work and more flexibility.


  • Milltronics 8200-B CNC
  • 12" Color LCD display
  • Ethernet Connection
  • USB Port
  • Auxiliary Keyboard jack with keyboard
  • Offline FastCAM software for programming
  • User Definable Custom Macros
  • Feedrate and Spindle speed overrides
  • Spindle load meter
  • Edit key lock-out switch
  • LCD hour meter
  • Tri-color end of cycle warning light
  • Single spare "M" function with CNC wait channel
  • Rigid tapping
  • Spindle orientation
  • Remote Handwheel (MPG)
  • Work light
  • 10,000 RPM 70 mm inline spindle
  • 24/15 HP (18/11 kW) In-line spindle motor
  • High precision spindle with four angular contact bearings
  • Cartridge spindle design
  • Big plus® dual contact spindle
  • 24 pocket double arm ATC
  • One piece Meehanite cast iron bed
  • Fully ground 44.5" x 20" table
  • 35 mm Linear Way Technology on all 3 axes
  • AC Servo motors mounted directly to oversized ball screws on all axes
  • 32 mm ball screws on X, Y, and Z axis
  • Double anchored ball screws
  • 25.4 M (1,000 IPM) Rapid Traverse rate (X,Y)
  • Matched AC Servo Amplifiers on all axes
  • Automatic metered way oil lubrication
  • Telescopic metal way covers
  • Fully enclosed machine guard with removable side doors
  • Pull out PC keyboard tray
  • Chip wash down system
  • Single chip auger for chip evacuation
  • Air blast hose & Chip wash down hose
  • Flood coolant with 50 gallon coolant tank
  • Coolant through spindle ready system
  • UL certified
  • Instruction manual, parts list, and electrical drawings
  • Operator and maintenance manuals

Milltronics 8200-B Series CNC Control Features

  • 12" LCD color display
  • 2000 blocks/second high speed processor
  • Conversational programming
  • Fanuc based G&M Code programming
  • Inch/Metric Conversion / programming
  • Auto routines
  • User definable macros with trig assist
  • Custom Macro B
  • Irregular pocket clearing
  • Auto DXF file import
  • 3D part and wire frame tool path graphics
  • Solid Model Graphic Display
  • Optional four and five axis simultaneous interpolation software and interface
  • Onboard diagnostics
  • Spindle load meter
  • Part counter display
  • 1 GB parts program memory
  • Networking
  • USB Port
  • Manual pulse generator
  • Coordinate rotating
  • Scaling
  • Mirror image
  • Helical interpolation
  • Feedrate and Spindle Override
  • Tool diameter and length offsets (199 total)
  • Tool Load Monitoring
  • 60 Work Coordinates (G540-G599)
  • G92 Coordinate system setting
  • Backlash Compensation
  • Ball screw pitch error compensation
  • Rigid tapping
  • Canned cycles including:
    • Drilling
    • Boring
    • Tapping
    • Facing
    • Pocketing with or without islands
    • Threading
    • Bolt hole pattern
    • 3D Pocket/Sweep
    • Text/Engraving
    • Tangent/Circle Generate
  • Subprogram Call-50 nested programs maximum
  • MDI
  • Background Editing
  • Program/Parameter protect