Milling Machines





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Spec Sheet

  Portamill 208Portamill 308
Working Area
Table dimensions79x31 in118x31 in
Table load capacity (max.)4,400 lbs
Number of T-slots5 positions
T-slot (width x spacing)0.87x6.3 in
Spindle nose-to-table surface distance0 - 31 in
Travel X-axis78.7 in118.1 in
Travel Y-axis43 in
Travel Z-axis31 in
Speed range82 - 505 rpm
Torque max.6,991.5
Spindle mountISO 50
Rapid Feed
Rapid Feed X-axis55.12 in/min51.18 in/min
Rapid Feed Y-axis35.04 in/min
Z axis rapid feed (gantry)17 in/min
Z axis rapid feed (cutter head)11 in/min
Work feed X-axis0 - 51 in/min0 - 102 in/min
Work feed Y-axis3 - 13 in/min
Drive Capacity
Motor rating main drive10.1 Hp
Motor rating for X-axis drive1.5 Hp
Motor rating for Y-axis drive5.4 Hp
Motor rating for Z-axis drive3 Hp
Measures and Weights
Overall dimensions (length x width x height)158x119x91 in237x119x91 in
Weight11,880 lbs13,640 lbs

  • Heavy cast-iron machine frame provides a rigid structure with firmly integrated gantry; the setup table provides support across the entire travel distance, including height-adjustable traverse
  • Large setup table is moving on a rigid combination of v-guides and box-ways with ground surfaces for maximum accuracy across the entire work area, independent of table loads and load distribution
  • Both table guides are integrated into a permanent oil circuit; hydrostatic bearings prevent heat build-up and wear, and ensure lasting maximum precision
  • This machine type handles work pieces with weights up to 4409 lb
  • The manually shifted 6-step gear delivers high torque at the headstock
  • Infinitely variable automatic feed on X axis
  • Mechanical axis clamping on all axes
  • Swiveling control panel with long arm allows a wide action radius for the user
  • Automatic central lubrication cutter head (standard)

3-axis position indicator

  • More accuracy
  • Lower error rate
  • Increased productivity
  • Resulting in valuable time savings
  • For increased productivity
  • Easy to read display
  • Operator-specific features
  • Convenient keyboard layout
  • Resolution: 0.0004 / 0.0002"
  • Default coordinates
  • Axis position is maintained when display is turned off
  • Hole circle pattern calculation
  • Calculator function
  • Storage for 10 tools
  • Radius / diameter toggle
  • Mm/inch conversion
  • Easy expansion and maintenance-free operation

  • 3-axis position indicator
  • automatic central lubrication
  • work lamp
  • foundation bolts
  • operating tools
  • operator manual

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