TRAK K3 CNC Knee Mills

The best built, best supported knee-type milling machines you can buy
TRAK K3 Knee Mill shown with the ProtoTRAK KMX CNC
  • TRAK K3 Knee Mill
  • TRAK K3 Knee Mill Front View
  • TRAK K3 Knee Mill Right Side View
  • TRAK K3 Knee Mill Rear View
  • TRAK K3 Knee Mill Left Side View

K3 Knee Mill Specifications:

  • 50″ x 10″ table size
  • R8 spindle taper
  • 60-4200 RPM spindle speed
  • Head tilt (forward and backward) +/- 45°
  • Head swivel (side to side) +/- 90°

Standard Features:

  • ProtoTRAK® CNC integrated at the factory
  • Precision 7207 P4 spindle bearings
  • Glass scale for quill Z readout
  • Precision ground ballscrews installed in the table and saddle
  • Chrome ground quill
  • Wide way surfaces are hardened and ground
  • Slideways are Turcite® coated
  • Real handwheels so you can work manually
  • Meehanite® castings
TRAK Machine Tools Field Service Technicians
TRAK Field Service Technicians

Outstanding Support at no Extra Cost

Only TRAK Knee Mills featuring ProtoTRAK CNCs are factory-integrated by us, the manufacturer of the control. That means an outstanding product and one source of parts and support. You will never be shuffled between machine and CNC supplier; the entire product is our responsibility.

Our track record proves you can rely on us to live up to our responsibility to you.

Models

TRAK K3 EMX Knee Mill featuring the ProtoTRAK EMX CNC

TRAK K3 EMX Knee Mill

  • Model: TRAK-K3EMX
  • 2-axis CNC, 3-axis DRO
  • Work manually or with CNC
  • ProtoTRAK EMX CNC

The ProtoTRAK® EMX offers full CNC functionality in an easy-to-use control. It is a great option for shops looking for basic CNC capability to handle simple machining work. It's a favorite control for schools since they can teach manual machining and introductory CNC on the same machine.

TRAK K3 KMX Knee Mill featuring the ProtoTRAK KMX CNC

TRAK K3 KMX Knee Mill

  • Model: TRAK-K3KMX
  • 2-axis CNC, 3-axis DRO
  • Work manually or with CNC
  • ProtoTRAK KMX CNC

The ProtoTRAK® KMX is the best CNC TRAK has ever made for knee mill applications. With the advanced technology, power and flexibility of the KMX, you can accomplish anything from quick manual jobs to complex profiling.

TRAK K3 KMX-3 Knee Mill featuring the ProtoTRAK KMX CNC

TRAK K3 KMX-3 Knee Mill

  • Model: TRAK-K3KMX-3
  • 3-axis CNC, 3-axis DRO
  • Work manually or with CNC
  • ProtoTRAK KMX CNC

The K3 KMX-3 uses a quill drive for 3-axis machining. The mill can be run manually, or as a 2-axis or 3-axis CNC. Manual quill control is accomplished with electronic handwheels. The K3 KMX-3 is the most versatile of our knee mill machines. For most 3-axis machining applications however, we highly recommend our TRAK Bed Mills.

Standard Features for All TRAK Knee Mill Models:

  • Precision 7207 P4 spindle bearings
  • Glass scale for quill Z readout
  • Precision ground ballscrews installed in the table and saddle
  • Chrome ground quill
  • Wide way surfaces are hardened and ground
  • Slideways are Turcite® coated
  • Real handwheels so you can work manually
  • Meehanite® castings

ProtoTRAK KMX CNC

  • Easy to learn and use
  • Improved Auto Geometry Engine®
  • Outstanding graphics
  • Powerful offline programming for using our Advanced Software Options
  • Can handle quick manual jobs to complex profiling

Learn more about the ProtoTRAK KMX CNC


ProtoTRAK EMX CNC

  • 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

Learn more about the ProtoTRAK EMX CNC

Specifications

  All Models
Table Size 50″ x 10″
T-Slots (Number x Width) 3 x .625″ x 2.5″
Table Travel 32″
Saddle Travel 16″
Knee Travel 16″
RAM Travel 15″
Maximum Quill Travel 5″
Quill Diameter 3.375″
Spindle Taper R8
Spindle Speed Range RPM 60-500, 600-4200
Head Tilt 45° forward and back, 90° left and right
Quill Feeds per Revolution of Spindle 0.0015/0.003/0.006″
Spindle Motor HP 3 HP
Power Requirements - Control 110V, 1P, 10A
Power Requirements - Machine 220/440V, 3P, 8.5/4.25A
Maximum Weight of Workpiece 750 lbs
Dimensions 71″ (length) x 59″ (width) x 84″ (height)
Rapid Speeds 100 IPM X, Y
Way Surface Type Dovetail X/Z, Square Y

Options

Offline Programming

Offline Programming

  • ProtoTRAK KMX user interface for Windows® PC
  • Program parts and simulate CNC Run
  • Modify files from current and former ProtoTRAK models

VIDEO: Installing ProtoTRAK Offline Software

Chip Pan - Knee Mill

Chip Pan - Knee Mill

Chip pan for TRAK knee mills.

Power Feed

Power Feed

Knee power feed for TRAK Knee mills.

Remote Stop/Go Switch - Mills

Remote Stop/Go Switch - Mills

A hand-held switch to stop and continue program run.

Available for purchase at our service parts website: Remote Stop/Go Switch

Table Guard

Table Guard

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.

Work Lamp

Work Lamp

Bright, long-lasting halogen work lamp with industrial-grade mount.

Kurt<sup>®</sup> Vise

Kurt® Vise

6″ Kurt vise and mounting hardware - model DX6. Opens to 9″.

Auto Lubrication Pump

Auto Lubrication Pump

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

Spray Coolant

Spray Coolant

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

TRAKing<sup>®</sup> / Electronic Handwheels

TRAKing® / Electronic Handwheels

The feel of manual control of real handwheels, but our electronic handwheels bring the power of the CNC to your fingertips through features such as TRAKing and DO ONE. Not available for the ProtoTRAK EMX.

Power Draw Bar

Power Draw Bar

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

Glass Scales

Glass Scales

A popular brand of glass scale mounted on the table and saddle. X/Y glass scales not available for the ProtoTRAK EMX.

DXF Converter - Knee Mills

DXF Converter - Knee Mills

  • Import and convert CAD data into ProtoTRAK programs
  • DXF or DWG files
  • Chaining
  • Automatic Gap Closing
  • Layer control
  • Easy, prompted process you can do right at the machine

Not available for the ProtoTRAK EMX.

Coolant Pump

Coolant Pump

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.

Limit Switches

Limit Switches

Switches and brackets to set for maximum travel limits. Tripping the switch will cause the servo motors to shut down. Note, limit switches are not especially recommended. The system software monitors voltage intensity and will shut down the servos if it detects excessive force. Not available for the ProtoTRAK EMX.

TRAK<sup>®</sup> USB Memory

TRAK® USB Memory

The USB Memory option consists of an industrial-grade Delkin® Thumb drive. This device is unsurpassed for reliability and speed of file access and is the storage of choice for our own software engineers.

VIDEO: TRAK® USB Memory Option Overview

Auxiliary Functions - Knee Mills

Auxiliary Functions - Knee Mills

The Auxiliary functions provide program control of spray mist or coolant, spindle off, and interface to a programmable rotary table or indexer. Available only on K3KMX-3.

Other Knee Mill Options

Other Knee Mill Options

  • Networking Option — lets you connect your ProtoTRAK to a network of other ProtoTRAKs or offline computers. (Standard equipment for the ProtoTRAK KMX. Not available for the ProtoTRAK EMX.)
  • Riser blocks — RISER-4 (for 4″), RISER-6 (for 6″), RISER-8 (for 8″)