KENT CNC Knee Mill Two & Three Axis

MODEL KTM-3VKF-MillPwr-2 $ 21,500.00
MODEL KTM-3VKF-MillPwr-3 $ 25,500.00

Outstanding Features:

• 3 HP AC-Freq drive head with digital RPM display and analog load meter
• 60-550-4500 spindle RPM (Hi/Low gear)
• Automatic centralized lubrication system with metered check-valves
• Single-phase or 3-phase power without the need for a phase converter
• Hardened and Ground (Hrc-52) table surface and all slide ways
• Easy conversational programming, DRO-mode allows for full manual operations
• Engraving feature and DXF file import capability built-in, 3.5” floppy drive and 10” flat panel color LCD display

Machine Options:

Quick change tooling package (Mach-1)........................ $  1,450.00
NMTB-30 spindle............................................................... $    800.00
Air power drawbar (Maxi-Torque, made in USA)........... $    750.00
Chip tray.............................................................................. $    400.00
Flood coolant system (Built-in base)................................ $    500.00
4” Riser block...................................................................... $    500.00
6” Riser block...................................................................... $    500.00
8” Riser block...................................................................... $    600.00
Knee (z-axis) power feed................................................... $    550.00

High-Speed (HS) 6000 RPM spindle (single gear) option........ $    900.00
XL version with 10x54 size table instead of 10x50 table........... $    700.00
440V Power instead of 220V....................................................... $    200.00

CNC Control Options:
3-D Edge finder.............................................................................. $    350.00
Knee Linear encoder feedback for coupled Z-axis position..... $  1,200.00
AMI with programmable spindle on/off and M-functions............ $  1,000.00

General Specifications:

Power Requirements:
220V 3-phase or 1-phase for machine, 10A (15A for 1-phase)
Optional 440v requires 3-phase, 7.5A
110V dedicated for CNC control, 20A

AC-Freq drive head - a better way:
AC-Freq drive models vary spindle rpm by changing the frequency (Hz) of the power to the motor by electronic means via a frequency inverter.  No more sliding vari-disc with plastic inserts means a more reliable milling head with less maintenance issues.  Runs quieter and smoother than standard conventional mechanical sliding pulley drive systems.  Three phase power or single phase power.  No need for a phase converter – great for the shop or at home.

Did you know?
In IMTS-1992, Kent show case the first AC-Freq drive head on a knee mill to the general machine tool public.  This caught our competitors by surprise and generated a lot of interest – well actually more from our competitors than shop users at the time.  We are the first to put in a digital rpm display for easy and precise spindle speed adjustment.  We are the first to put in an analog spindle load meter.  Today, we lead this field with the highest performance AC-Freq drive head on the market with 0-4500 rpm in under 3 seconds.  We use the latest generation of flux-vector inverter drives made in the USA – for performance that is second to none.  An optional high-speed head with 6000 rpm spindle is also available – again, a first its class.  Some lead, others follow.

We don’t use 3rd party installer:
It is surprising to us that most of our competitors in this field actually do not install the cnc package themselves – they usually hire a 3rd party person to do the installation.  While this saves overall cost, we believe it does not provide the best overall quality and reliability for our customers.  A 3rd party installer gets paid per job, whether it takes 1 day or 1 week to finish the job.  His main goal is to get it done as quickly as possible, not necessary do the best job possible.  In contrast,  Kent cnc mills are installed by full-time Kent employees – his job is to do it right.  Not the fastest way every time, always the right way every time.  Take comfort in knowing that your cnc mill was done right.

A highly recommended option:
A quick-change tooling system that allows quick tool change while preserving the tool length preset will more than pay for itself in a relatively short amount of time.  The standard R-8 spindle design was simply not meant for cnc uses.  A good solution is the Mach-1 quick change tooling package.  Another way is to go with a NMTB-30 spindle and an air-powered drawbar.  This later method yields better performance in terms of heavy cutting applications, since a 30-taper tool holder is normally more rigid than a R-8 style quick change adaptor/holder.  The Universal Kwik-Switch system is an alternative to the NMTB-30 spindle where heavy cutting applications is an issue.  Here the standard R-8 spindle is replaced with a custom Kwik-Switch spindle.

Acu-Rite MillPwr CNC System:   

Outstanding Features:

• Easy to use, menu prompted, conversational format
• 3D tactile-feel color keypad
• 10” flat panel LCD color display
• 3½” floppy disk drive
• Remote stop/go switch
• Close loop feedback using precision linear glass scales with absolute encoder Position-Trac technology
• Precision hardened and ground ballscrews
• Direct DXF file input capability
• Alphanumeric engraving on line or arc

MillPwr Console

• Scale, skew, rotate, and mirror

Position-Trac scale has absolute encoder technology.  This allows MillPwr control to find machine “home” position in any axis by moving only up to 2” of travel.  Once homed, work piece datum is established and the control can repeat a position even after being powered off.  As an added benefit, software limits can be set to safely keep machine travel within machine travel limits without the need of additional hardware limit switches and home switches.

MillPwr is manufactured in the United States at Acu-Rite’s ISO-9001 registered facility.  MillPwr is backed by a comprehensive 1-year warranty.