Testimonials

On behalf of L.J. Walch Company, I would like to acknowledge the outstanding quality work that we have seen from Surface Finishes. By outstanding I mean the lapping quality that we get from Surface Finishes is far beyond our expectation when we compare Surface Finishes lapping work with other previous vendors we have dealt with through out the years. Surface Finishes lapping work has met and exceeded our inspection requirements.

Following our phone conversation, you expressed an interest to see data that would show how your company has performed on the 3 part numbers that you currently manufacture for HS. The 3 part numbers are 753326-1, 765408-2, and 753391-1. The database used to collect this data is the HS JDE system. The following data is available for review:

At TA Instruments we had a need for a highly engineered part that is strong, light and stable to lapped to very tight flatness and parallelism specifications. We contacted thirteen companies who claimed to to specialized low tolerance lapping. None of these companies said they could meet our demands. However, three of these companies referred us to Surface Finishes.

The demanding requirements of the Aerospace industry require suppliers adhere to the highest tolerance standards. No where is that more true than for earth observing meteorological sensors. Surface Finishes understands these requirements and for the last decade has provided ITT Aerospace / Communications Division the polishing service required for its opto-mechanical hardware that fly aboard NOAA's GOES weather satellites.

Surface Finishes understands our needs.

The 25th anniversary of the Micralign microlithography product line. SVG Lithography Systems would like to acknowledge Surface Finishes contribution as the supplier of nearly 800 Air Bearing Bar assemblies for the M-500/600/700 Micralign Systems used for integrated circuit manufacturing.

Please review the enclosed drawing and quote a unit price for 100 p.c. of finished parts.

Also, I would appreciate it if you could review the tolerances assigned to this spacer drawing and determine "technical worthiness" of these assigned tolerances for application in the precision slitting of 1/2" digital computer and video magnetic tapes. Please relate your comments with the quotation so that I can update this blueprint.

The Best spacers I have used in the past came from your company, Surface Finishes and I need that grade again.

The APTI system is capable of a positioning accuracy of better than one micron over a 10"X10" area. To obtain this accuracy, lapped surfaces with the flatness of ten millionths of an inch are required.

The very fine work done by your company in lapping these tables has made the attainment of the specified performance possible.