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VMC425, 7.5 HP Servo Spindle

Full Production Capacity - Small Footprint

The VMC425 is a compact, full production vertical machining center that has power, speed and performance - and it won't break the bank.
The VMC425 Vertical Machining Center has a Full "safety assured" machine enclosure, with customer recommended ergonomic package that is designed with all-day operation in mind.
This small vertical machining center is built for and used in full production operations.  Also, chosen by Siemens as a featured machine in it's new "Siemens Educational Initiative".  A small vertical machining center that fits well in educational settings.
Unique VMC425 features include:
  • Closed Loop System/Servos:  Industrial level of power, precision and performance.
  • Siemens 808D CNC Control: Industrial grade CNC control with conversational programming and on-screen help guide.
  • 7.5 HP Servo Spindle Motor:  High torque, even at low RPMs - constant torque rise through speed range.  Allows for rigid tapping and spindle positioning.
  • 50-8000 RPM Spindle:  Ramp up from lowest to highest speed at the push of a button.
  • 10 Tool Automatic Tool Change System:  Automated milling operations with precision BT30 10-tool ATC. Change tools by hand fast with pnuematic "push-button" tool change.
  • High Quality Linear Guides and Ball Screws:  Increased precision and higher speed operations.  Allows for 1000 IPM feed rates.
  • Full Enclosure:  Full "Safety-Lock" enclosure keeps operator safe - contains coolant and chips during long production runs.  
  • Heavy Base and Machine Castings:  Optimal vibration damping, assuring consistent precision and excellent repeatability.


Power - Speed - Performance

Designed and built for full-production -- its small size and footprint allows it to fit in limited space applications.
7.5 HP Servo spindle drive provides power to match the machine size. 50-8000 RPM spindle speed permits a wide range of milling applications.

Generous sized work cube:  Means this stout, but nimble VMC is a hard working partner that gives you the versatility needed to fit your CNC milling requirements.
The VMC425 provides the capabilities of larger, more expensive machines in a small but robust package. Used in a variety of production and educational applications.

Performance Details:
  • Siemens 808D CNC Control
  • Servos/Drives on All Axes
  • Closed Loop System
  • 7.5 HP Servo Spindle
  • 50-8000 RPM Servo Spindle
  • 1000 IPM Feed Rate
  • BT30 Tooling System
  • 10 Tool Automatic Tool Changer
  • Full Safety Grade Enclosure
  • Schneider Electrical Components
  • PMI Ball Screws
  • Auto Lube and Coolant Control
  • Heavy Castings with Cast Base
Warranty Details:
  • 18 Months on VMC425
  • 3 Years Total (2+1) on Siemens 808D Control



Milling Machine Features
Full Enclosure - Assures Safe & Clean Work Environment Full enclosure with door safety locks. Keeps coolant and chips contained. Assures a safe environment for the operator and attendants, and helps keep a cleaner work area.
PMI Ball Screws World-class standard ball screws - efficiently transmit rotary motion to linear motion, allowing for high-speed, highly accurate axis movements. Accurate ball circle diameters throughout length of ball screw assures consistent drag torque and low noise.
Precision Hiwin Linear Guideways with Telescoping Covers Hiwin linear motion guideways come standard on the VMC425. Stainless steel telescoping guards provide maximum protection of guideways from chips and coolant.
10 Tool Automatic Tool Change System Reduces cycle times by automatically changing tools between cuts without the need of an operator. Reduces operator set-up errors and maximizes productive operator and machine hours.
BT-30 Tool Holding System Industry standard CNC tool holding system - the other being the CAT system. Tooling is cheaper with the BT system. We selected the BT system because our customers have said they want a quality standard CNC tooling system - and value pricing.
Large Table and Work Cube Precision ground work table and generous work cube dimensions. Big enough for real production work.

Heavy Machine Castings, PLUS a Heavy Cast Base

3800 lbs. heavy duty, vibration damping castings turns this small VMC into a full duty production machine. High weight-to-work cube ratio assures high rigidity and advanced accuracy. Sturdy cast stand has built-in coolant recycling tank.
Counter Weight Balanced Mill Head Reduces stress on Z-axis motor and ball screw at higher RPMs. Increases accuracy and extends life of Z-axis components. A counter balanced mill head will not crash in the event of a control failure.
Drive System Features
7.5 HP Servo Spindle Drive Plenty of power to match the size of machine. Servo drive on spindle adds to functionality and reliability. High torque, even at low RPMS. Constant toque rise throughout speed range - capable of rigid tapping and spindle alignment.
Schneider Electrical Components One reason we can offer an 18-month machine warranty is because of the recognized quality and reliability of Schneider Electrical components. Highest reliability rating - highly efficient design reduces power usage.
50-8000 RPM Spindle Speed Servo driven spindle provides rapid speed changes, from 50-8000 RPMs in a few seconds - in a single speed range. No need for changing gears or belts. Constant torque rise, even at low RPM are assured with the servo drive.
1000 IPM Feed Rates Faster speeds equals higher production rates. The Siemens industrial control, axis servo drive system and linear ways provide the power and control that allows for higher speeds - many times faster than competitive systems.
Safety Operation Features
Automatic Lubrication System Lubricates all wear points during machine operation at continuous time intervals. Benefits include reduced labor and material costs and significant extension of bearing life.
Programmable Coolant System Control coolant flow at the control panel using standard M-Codes. Cycle times can be significantly reduced, while feed and cutting speeds can be significantly increased. Proper cooling extends life of cutting tools.
Work Light Focused lighting elements increase operator efficiency and reduce fatigue. This light is flicker resistant, waterproof, and resistant to both cooling and lubricants. It is also resitant to impacts and vibrations.
Tri-Color Warning Light Turns on when control recognizes a machining error or machine malfunction. An operator standing away from the machine is visually alerted by the activated alarm light when machining cycle is finished or mahine aerrors out.
Siemens 808D CNC Control Features
Closed Loop System System directly monitors motor position and velocity in real time. The system then automatically makes corrections to assure correct tool positioning. High accuracy and maximum parts quality ensures a minimal rejection rate. Also assures smoother surface finishes.
Siemens Servos and Drives Achieves rapid acceleration and higher speeds - Maintains high torque throughout speed range. Motor is highly efficient - and it stays cool. Quiet at high speeds and stays vibration free during operation.
Ideal for CNC Beginners Ideal for entry level CNC users, the innovative integrative start-GUIDE from Siemens provides an on-line digital help function on every screen. Helpful instructions are available anytime - at the push of a button.
Simple & Intuitive Interface Well-designed conversational programming functions and Wizards from Siemens help streamline programming at the control panel. All Siemens 808D controls come standard with this SINUMERIK Operate BASIC functionality.
Compact and Robust Industrial panel design with hardened features is ideal for harsh environments. Small compact design matches smaller machines tools like the AutoMate CNC line.
USB Connector - Easily Handles Large Files This unique Siemens function allows for the streaming of large program files direct from a USB. Large files are no longer a concern - other CNC systems lack this robust level of functionality.
Built-In Helps Several Siemens provided “assists” help streamline programming functions. One example would be Hot Keys. With the Hot Key function, machine operators can easily access commonly used screens using operator defined hot keys.




Model Name MX200 Small CNC Bed Mill TRX550 PRO Small Vertical Machining Center VMC425 Vertical Milling Machine
Price $17,399 $26,995 $30,659
Spindle Nose to Table - Max 18.5” 19.5” 19.5"
Spindle Nose - Min 2.5” 2.5” 2"
Spindle Center to Column 12” 12” 15"
Machine Repeatability .0004” .0003” .0002"
X Axis 21” 21.5” 17"
Y Axis 11.25” 11” 10"
Z Axis 16” 18” 18"
X-Axis Rapids 325 IPM 600 IPM 800 IPM
Y-Axis Rapids 325 IPM 600 IPM 800 IPM
Z-Axis Rapids 325 IPM 600 IPM 800 IPM
Max. Cutting Speed 100 IPM 315 IPM 315 IPM
Length 36” 41.25” 28"
Width 9.5” 11” 12"
T-Slot Width 5/8” 0.55" (14mm) 5/8”
T-Slot Center Distance 2.4” 2.4” 3.3"
Number of T-Slots 3 3 3
Max Weight on Table 350 lbs 350 lbs 550 lbs
Spindle Power 4 HP 4 HP 7.5 HP
RPM Range 50-6000 50-6000 50-8000
Drive System Servo/Direct Belt Servo/Direct Belt Servo/Direct Belt
Taper BT30 BT30 BT30
Type N/A Carousel Carousel
Capacity N/A 12 10
Max. Tool Diameter N/A 4" 4”
Max. Tool Weight N/A 12 Lbs 7 Lbs
Machine Weight 2150 Lbs 2820 Lbs 4800 Lbs
Machine Dimensions 71” x 52” x 82” 77” x 64” x 82” 81" x 69" x 83"
Shipping Weight 2310 Lbs 3040 Lbs 5120 Lbs
Air for Pneumatics 90 PSI 90 PSI 90 PSI
Coolant Capacity 3.75 Gal 35 Gal 35 Gal
Power (Standard) 220V 3 Phase Power 220V 3 Phase Power 220V 3 Phase Power
Amperage Required 30 Amp 30 Amp 40 Amp


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