JM Performance Products Inc  

JMPP's patented High Torque© retention knobs are uniquely designed to eliminate toolholder expansion at the small end of the holder, the inherent design flaw in V-Flange tooling that has been widely recognized throughout the industry. High Torque© retention knobs solve many milling issues such as vibration, chatter, runout, poor finishes, inconsistent tolerances, lengthy set-up time, deviations from tool-setter to machine, and a myriad of other common milling problems. By optimizing spindle-to-toolholder contact, every shop can improve their milling results.  Plus, these knobs are guaranteed to improve finishes, decrease cycle time, and extend tool life.  If your CNC tools stay true to their programmed paths, and offsets and heights are dependable, your operators will be more proficient and your CNC machines more efficient. 

Toolholder Expansion:  Toolholder expansion occurs when a standard retention knob is installed into the V-Flange toolholder.  It's not visible to the nake eye, but it is made apparent by the problems it causes, because once expansion occurs, the toolholder will no longer make full contact with the spindle, instead stopping short of full engagement at the gage-line.  The diminished contact allows the toolholder to move randomly within the spindle.  Symptomatic of this condition is the presence of distinct wear patterns at the small end of the holder, and at the gage-line, with little to no apparent wear over 75% of the holder.  

High Torque© knobs can be used in any V-Flange toolholder that is made to industry specifications, even previously expanded holders.  Made from 8620H or 9310H material, the knobs are black-oxided to prevent rust, shot peened to relieve stress, deburred for better finish, machined with radiused corners for added strength and durability, and precison hard-turned post heat treating.  All finishes exceed International Standards, and written inspection records are maintained on every manufacturing lot.  Each knob is indivdually laser marked with the month and year of purchase to provide easier time-in-service auditing, and each is laser marked with the part number and a unique serial number for complete traceability.

Made in the USA from USA manufactured steel.   

JMPP's coupling bolts, used for Mazak live tooling lathes, are available for immediate shipment.  Made in the USA to eliminate the traditionally long lead times for comparable imported coupling bolts, these bolts fully incorporate Mazak's specifications but are manufactured to the patented High Torque© standard from 9310H material.  In stock in Fairport Harbor, OH, the bolts are available for immediate shipment at a very affordable price.  The High Torque© design delivers added machining savings in the form of better finishes, less runout, increased speeds and feeds, reduced machine idle-time, and improved production rates.  Ask your preferred tooling distributor for  53488025001HTHS or 53488025101HTHS

CNC spindle maintenance is can be a dirty, boring, and often overlooked job.  However, a clean spindle is essential for proper taper contact between the spindle and v-flange toolholder.

Build-up of chips, dust, and oil in the spindle can jeopardise taper contact and result in premature wear, repair downtime, and even CNC machine breakdown.

Ultimately, breakdowns cause production to stop and the ensuing costs are very high since no parts are being produced. The most cost-effective way to increase CNC machine productivity is through proper maintenance, ensuring optimal toolholder to spindle contact.

It’s important to note that all V-Flange tooling is designed to fit the spindle taper within tolerances of one-tenthousandths (.0001”) of an inch. Any debris, in the form of dust, grease, chips, or other contaminant left on the spindle, taper, or flange can cause poor T.I.R. (runout), poor tool life, and poor tolerances.

Recognising that a clean, smooth spindle surface is essential for proper taper contact between the spindle and v-flange toolholder, JM Performance Products, a US manufacturer of CNC mill spindle optimisation products since 2009, has developed its advanced Spindle Cleaner Kit and Spindle Restoration Kit.

The spindle cleaners and spindle restoration tapers are made from anodized aluminium that will not collapse in the spindle during use. They also come with removable handles that can be used with all cleaning and resurfacing head tapers.

Designed to remove loose oil, debris, and other contaminants from CAT and BT spindles in 30, 40, 45, 50, or 60 taper sizes, JMPP’s Spindle Cleaner Kit includes: 1 or 2 AT3 precision tapers; removable handles; 16oz bottle of degreaser; fabric cleaning strips; lint free towels and a carrying case.

The Spindle Restoration Kit, designed to remove high spots attributed to debris and rust that has galled to the surface of the spindle and cannot be removed through cleaning, includes: two precision taper restoration heads; two spindle restoration handles; 16oz all-purpose cleaner; four different micron finishes of material strips and a carrying case.

S & S Tool in Conneaut, Ohio, an established specialty CNC machining operation since 1985, had been experiencing ongoing crashes on its five CNC machines. President, Paul Sedmak noticed there were high spots in the spindle which caused the taper to sit unevenly. Seeking a swift solution to avoid repeated shutdowns, which could cost approximately $6,000 per machine, Sedmak contacted JMPP Owner, John Stoneback, who made an onsite visit and demonstrated the Spindle Cleaning Kit and Spindle Restoration kits simple process.

Mr. Stoneback began by cleaning the spindle which was heavily coated with baked on coolant as it had not been cleaned in four or five years. He then began resurfacing the spindle using the taper fitted with 40 Micron aluminium oxide strips.

He had to use the all-purpose cleaner to remove debris, including metal fragments, off the strips, but after about half an hour, he got smooth rotations.  At that point, he used new strips to really shine the surface.  A final cleaning with the cleaning head and towels left the spindle looking like new.

He says: “When you consider that it would have taken a day to pull the spindle, one or two weeks to regrind it, and yet another day to reinstall the spindle, a few hours of time saved S & S Tool a considerable amount of money in terms of down time and lost production.

“The main purpose of regular spindle maintenance is to ensure that all equipment required for production is operating at 100% efficiency at all times. Therefore, it’s essential to implement a frequent spindle cleaning and restoration maintenance system that operators should conduct at least once per week.”

Mr. Sedmak concludes: “The results were readily apparent and we implemented the kit into our maintenance schedule immediately. We’ve been using it for over three years and won’t go back. For a small investment, all of our machines run more efficiently, the tools run truer, and we’re saving on cutter wear.”