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PrecisionMotorWorks - Services

At MDI PrecisionMotorWorks, we have THE ENGINEERING EXPERTISE, THE FACILITIES and THE EXPERIENCE to handle
just about any project or problem you could possibly throw our way - and we love a challenge. From the conventional to the
outrageous...If it has has anything at all to do with magnetic tape...We've got you covered.

_____Motor Rebuilding & Remanufacturing:
  • Remanufacturing & Rewinding
  • Motor Substitution & Adaptation
  • Motor Control & System Design
There's just no substitute for expertise - after 20+ years, you might say we've got a fair share. Our rebuilt motors work great, our custom parts and products are fully tested and guaranteed to meet or improve all original specifications. Services are provided for Ampex, Otari, Sony/MCI, Studer, and just about anything else on this planet that ever moved magnetic tape. Please call or Contact us for a quote. There's far too many motors and options to list on one website! We provide, at minimum, a full 90-day parts and labor guarantee on all work... A real solid guarantee!
_____Ceramic Sleeving:

We were the first to develop a unique process which permanently bonds a super hard ceramic sleeve to many types of capstan and drive shafts.This sleeve is a real problem solver and a great way to extend the life of your tape drive capstan motor.

Eliminate tape path skew and capstan related speed problems for the life of your machine. Ceramic Sleeving is available for virtually all Direct and Indirect Drive Capstan Shafts.
Ceramic Capstan Sleeve

Subj: Re: [Studer] Capstan surface roughening/refinishing
Date: Saturday, January 19, 2002 3:41:37 PM
From: HiHoAudio@aol.com
To: studer@recordist.com

Julian -

This is from the "Don't Try This At Home" catagory......

The absolute best thing to do with a slipping capstan, especially from a 2" A80 or A800, is to send it to Jeff Gilman at Precision MotorWorks and have him install a ceramic sleeve. Once this is done you will never have to touch it again outside of cleaning it with alcohol every once in a while. It's not cheap but it is worth every penny. We have several A800's with ceramic capstans installed by Jeff at Sony Music and they work great.

But if you are on a tight budget find some polysand and cross your fingers. NEVER use regular sandpaper, that would be just plain stupid. Even with Polysand you can do damage so as always, EASY DOES IT!

Kim Stallings
Sony Music Studios / NYC

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_____Custom Pinch Roller Fabrication:

We are not in the business of supplying off the shelf, garden variety pinch rollers. We leave that to the guys with less imagination. What we can do for you, on short notice, is provide you with the esoteric and the ordinarily extinct. We've made pinch rollers for Walter Sears', STUDER C-37's;Tom Jung's & Design FX's, Mitsubishi X-86's plus numerous others. For info, please Contact us.

_____Custom Machining & Manufacturing:

Surface Grinding, Cylindrical Grinding , Milling, Turning, Shaft straightening and repair. Bearing seat repairs, transport modification, dynamic 2-axis high speed balancing..and lots, lots more. So...What can we do for you?

_____Modifications & Special Adaptation:

Trying to fit a square peg into a round hole ? We're the folks to call. We offer full service machining and fabrication, right here, in house. When Walter Sear of SEAR SOUND in NYC wanted to get his vintage STUDER C-37's modified and on-line... he turned to us. When John Klett and Andrew Roberts in NYC wanted to get their AMPEX MR-70's up and running.. they called us. When James Boyk of the UNIVERSITY of CALIFORNIA wanted the very best sounding and performing AMPEX 351 possible for Classical Recording, the result was the now famous "MAGNESAURUS".... So, Who are you gonna call ?

_____Electronics Repair & Testing:

Our specialty is obviously in the realm of analog tape recorders but, we've opened up our facility for all kinds of repairs and high end modification. If you've got a problem with just about anything audio, we just might be the folks to call. Our enhanced audio testing facilities, including fast PC based high-resolution FFT analysis, enable us to cover all the bases - and we've got a great inventory of parts for virtually all repairs!

_____Audio Tape Recorder Restoration:

Ampex ATR-100

We've got the facility to roll your machine right in the door, any make or model. From electronics to cosmetics, when your machine is ready for the trip home ... It'll have a smile on its face like it hasn't had since the day it left the factory. Kind of like the one you'll have when you first see it again.

We work on all machines but we specialize in restoring the Ampex ATR-100. We love 'em and so do the folks who've bought them from us!

Check out our ATR-100 page or Download the PDF for complete details.

ATR-100 - 1" MasterMonster at
Crescent Moon Studios, Miami, Fl.
shown left

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