Datron Dynamics High Speed Machining
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DATRON High Frequency Spindles range from 30,000 to 60,000 RPM

High Speed Spindles or High Frequency Spindles are the foundation that DATRON high speed CNC milling and engraving machines are built upon.
High Speed Spindles - Why We Need Them: With a trend towards miniaturization in manufacturing, work piece sizes are decreasing and part versions are increasing. So, the use of micro tools is becoming more and more prevalent. However, efficient and cost-effective use of these small tools requires High speed spindles or high frequency spindles. This is primarily due to the fact that the spindles on conventional CNC equipment cannot achieve the higher RPM speeds required for small diameter tools. Even if they can, it puts undue stress on the equipment by constantly red-lining their spindles. As an example, a conventional CNC machining center running tools smaller than ½” in diameter at 10,000 RPM or less will result in unfavorable feed rates and costly tool breakage.

Often this tool breakage is blamed on operator error, incorrect machining parameters, or worse yet, simply the nature of small tools. The reality is that it’s due to the force of a conventional machine’s heavy spindle and its inability to reach the high RPM speeds required to effectively evacuate chips from the cutting channel.

The smaller the tools, more you need a high speed spindle to efficiently machine quality parts and avoid tool breakage. High frequency spindles with speed ranges up to 60,000 RPM are ideal for milling, drilling, thread milling and engraving using micro tools.

High speed spindles use high RPM rates, taking a smaller stepover, but with significantly increased feed rates. Move your hand through the flame of a burning candle. If you move too slowly, there’s enough time for the flame to cause damage. But if you sweep your hand swiftly through the flame, there’s insufficient time for the fire to damage your skin. The same principle applies to high-speed machining with micro-tooling. Move fast, and there’s insufficient time for heat to feed back into the part and cause issues.

During the machining process, the tool continually carves a chip out of the work piece. The generated heat develops approximately 40% from friction on each side of the tool, and 20% from the deformation (bending) of the chip. Therefore, about 60% of the heat is inside of the chip. High speed spindles evacuate the bulk of the heat with the chip, providing for a cleaner cut. The better machining quality is based on cooler tooling, lower machining forces, and therefore less vibration.

The high frequency spindle reduces the chip load to less than 0.005”. Such a low chip load significantly reduces the forces between the tool and the material. High speed spindles and high speed machining yield less heat, reduceing tool deflection, and allowing for machining of thinner walled work pieces. This all results in cooler machining, superior surface and edge quality, better accuracy and, as a by-product (of low force), easier workholding — since modular vacuum tables can be employed for quick set up and job changeover (particularly with thin flat substrates).
2kW High Frequency Spindle used in DATRON high speed CNC milling and engraving machines.
3kW High Speed Spindle used in DATRON high speed machining centers.
2kW High Speed Spindle performance chart
Front Panel Machining Video
High Speed Spindle Video will load soon (approx. 60 sec.).
High Frequency Spindle diagram for high speed spindles used in DATRON CNC machining centers
DATRON high speed machining center featuring high frequency spindles for amazing feed rates and superior surface finish
600W High Speed Spindle performance chart
High Speed Spindle on DATRON high speed milling machine performing batch machining of aluminum electronics parts
High Speed Spindle with microtooling cooled with micro jet coolant system
High speed spindle for high speed machining applications
Tooling Geometry for high frequency spindles, high speed spindles and high speed machining
Micro-Tooling Geometry for use with High Speed Spindles or High Frequency Spindles:

Microtooling for use with high speed spindles in high speed machining applications is not just large tooling scaled down. There is geometry to consider in making tools specifically for high speed spindles and high speed machining.

Low-Helical Angle:
First and foremost, Datron developes micro tools that feature a low helical angle. With this low helical angle these small tools are less suceptible breakage because less of the axial load applied to the tool is translated into torque.

Single Vs. Double Flute:
We also recommend that whenever possible customers use tools with a single flute rather than a double flute. That's because single-fluted tools provide increased chip room that facilitates chip evacuation, minimizes chip load and minimizes tool breakage. That said there are times when the need for a quality surface finish outweigh the need for speed — and in these instances, double-fluted tools are the way to go.

Cutting Length:
With micro tools it's best to keep the tool length to a minimum. The shorter the cutting length the more stable the tool. The more stable the tool, the faster you can run it ... and after all, in high-speed machining with micro tools we want to go ... well, high speed., right? Plus, this short cutting length typically produces better surface finishes.
Protected High Speed Spindle uses "clean cut" system for chip extraction
DATRON M10 can be ordered with a variety of different high speed spindles up to 3kW and 60,000 RPM
This high frequency spindle is on the Datron M10 - our fastest, most powerful high speed machining center
High speed spindles are ideal for high speed machining of small electronics parts Aluminum extrusions can be milled with entry holes at high speed with high speed spindles and DATRON CNC Milling and engraving machines. Small threadmills in high frequency spindles are used for high speed machining of electronics components.
Datron high speed spindles yield superior edge finishes. Use high frequency spindles and Datron high speed milling machines for the machining of sheet material to make front panels, control panels, nameplates etc. High speed spindles with optimized endmills for machining pockets and cavities in aluminum
These thin edged walls are the result of high speed machining with a high frequency spindle or high speed spindle.
High Speed Spindles, High Frequency Spindles = High Speed CNC Machining.

If you're looking for a high speed CNC milling or engraving machine with a high speed spindle for superior cuts and cycle times, call DATRON today!

888.262.2833
Datron Dynamics, Inc.
115 Emerson Road
Milford, NH 03055
German Engineered. American Supported. High-Speed CNC Milling and Engraving Machines for Precision Machining.
phone: 603.672.8890
info@datrondynamics.com
In our constant effort to improve our products and services,
we reserve the right to change specifications with or without notice.
(c) Datron Dynamics, Inc. 2005
Terms And Conditions Of Sale apply.
DATRON High Speed Spindles and high frequency spindles range from 30,000 to 60,000 RPM. These high speed spindles produce superior surface and edge finish and yield greater efficiency and less tool breakage when using small or micro tooling.