CNC Technology for Small Lot Machining

Southwestern Industries


Designed for basic CNC work

  • 2-axis CNC, 3-axis DRO
  • HP spindle motor and R8 spindle taper
  • Travels X, Y and Z: 31" x 16" x 4.9"
  • Table size: 50" x 10"


CNC for basic milling

  • Inexpensive to own and operate - ideal for very small lots and simple second operations
  • Available on TRAK knee mills and as a knee mill retrofit for over 40 makes and models
  • 2-axis CNC, 3-axis DRO
  • Runs ProtoTRAK conversational language and CAM
  • Run in manual or CNC mode

Investigate costs in your shop by using our ProtoTRAK EMX Self Assessment Guide.

Specifications for TRAK K3 EMX

ProtoTRAK CNC Model EMX Table Size 50" x 10"
T-Slots (Number x Width) 3 x 16mm Travel (X, Y, Z Axis) 32" x 16" x 4.9"
Quill Diameter 3.375" Maximum Quill Travel 5"
Spindle Taper R8 Spindle Speed Range RPM 70 - 4200
Spindle Center to Column Face N/A Spindle Motor HP 3
Power Requirements, control 110V/1P/12Amp Power Requirements, Machine 220/440V, 3P, 8.5/4.3Amp
Maximum Weight of Workpiece 750 lbs Height Of Table From Bottom Of Bed 37.5" - 49"
Max Spindle Nose To Table 3" - 16.5" Min Height 87"
Max Height 91" Width Of Machine Including Table 68"
Overall Length With Electric Door Closed 62" Overall Width Inc Full Table Traverse 105"
Overall Length With Electrical Door Open 72" Footprint Of Machine 23" x 37.5"
Weight Net / Shipping Lbs. 2820/3100 Rapid Traverse X, Y, Z 100 IPM
Handwheel Type Mechanical, electronic optional Way Surface Type Dovetail X, Z, Square Y
Drilling Max Capacity 1" dia Milling Max Capacity 3 inch3/min
Tapping Max Capacity N/A

Options See All

The auto lubrication for the ways and ballscrews is wired to operate while the spindle is running. Discharge times and intervals are set on the lube pump.

Not available for model K3EMX Knee Mills.

Chip pan for TRAK Knee Mills.

The optional coolant pump is mounted on the back of the machine column. It is wired into the electrical panel for operation through the Accessory key on the CNC front panel. A manual switch is provided for ProtoTRAK EMX and SMX CNC two-axis models, or if Auxiliary Function option is not ordered.

Convenient light with bright, long lasting halogen bulb.

Knee power feed for TRAK Knee mills.

A Torque-Rite brand power draw bar factory installed on your machine. May be ordered as CAT or NMTB/NST. The draw bar for the CAT type is longer to fit into tool holders that have the tool changer grip, or retention knob, removed. Highly recommended.

Riser block for TRAK Knee mills.

RISER-4 (for 4")
RISER-6 (for 6")
RISER-8 (for 8")

Our most popular accessory (shown on mill). A convenient hand-held switch to start and stop the CNC servos during program run.

The unique Fog Buster non-fogging coolant sprayer precisely directs a fine stream of coolant to the tool and workpiece.

Not available for model EMX retrofits.

Table guard with sliding doors to impede chips and coolant and keep the operator from the tool and workpiece during CNC machining. Interlock switch on the door interfaces to the CNC. DRO and TRAKing are allowed with the door open, but the door must be closed for automatic CNC operations in the Program Run Mode.

The USB Thumb Drive option is an industrial grade 512MB thumb drive. It serves the following purposes:

  • Save program files for backing up or additional storage
  • Load program files
  • Share program files between ProtoTRAKs or computers
  • Save system configuration files, including backlash and calibration values

6” Kurt vise and mounting hardware (Model 688 shown). Opens to 8.8”. Contact your sales rep to find the correct model vise for your machine.

Not available for model EMX retrofits.