What Precision Devices does

Precision Devices, Inc. (PDI) is a privately held manufacturer of precision metrology instruments and custom-engineered work-holding devices, founded in 1971 in Milan, Michigan by Tom Preston and Joe Kormos. The company designs and builds instruments that measure surface texture, roundness, dimensional geometry, and bearing noise/vibration to millionths-of-an-inch tolerances, serving automotive powertrain, bearing, gear, and general precision manufacturing customers for quality control of transmission cases, valve bodies, gears, compressor end caps, dampers, and bearing assemblies.

The product portfolio centers on the digital Surfometer Series 800 and analog Surfometer systems for surface roughness, the MicroAnalyzer 2000 computer-based profiler, the Indi-Ron 100 and Indi-Ron GT-50 roundness measurement consoles with air-bearing spindles accurate to ±1–2.5 microinches, the INDI-AC dimensional gaging amplifiers, and the Anderometer bearing noise and vibration instrument. Complementary work-holding products include Centerline Ball Arbors and Chucks (repeatability of .000050"), Hydraulic Arbors and Chucks, and Champion expanding mandrels, supplemented by custom-designed fixtures for specific customer parts. PDI acquired the Giddings & Lewis Metrology Systems Operations product line in January 1998, adding the Profilometer, Proficorder, Indicorder, and Indi-AC systems, and maintains NIST-traceable calibration and ISO/TS-compliant certification services. The facility spans over 30,000 square feet on five acres, is ISO 9001:2015 certified by NSF International, and includes a demonstration and conference room for customer evaluations.

PDI operates a sales-led, direct-distribution model with regional field sales representatives covering the United States, quote-based pricing on custom-configured instruments, and supporting repair, calibration, and field-service revenue streams. Customers locate representatives through the company website and engage via phone and email; technical literature is gated behind a request form. The company is small (11–50 employees), founder-aligned, and has not raised material institutional capital beyond a 2021 round of $2.845M and a 2010 relationship with Akoya Capital Partners.

Name

Precision Devices

Legal name

Precision Devices, Inc.

Website

https://predev.com

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

11–50 employees

Short description

Precision Devices Inc. is a privately held manufacturer of precision metrology instruments—surface roughness, roundness, and dimensional gaging systems—plus custom work-holding fixtures, serving automotive powertrain, bearing, and gear manufacturers with NIST-traceable calibration and repair services since 1971.

Ownership category

akta.pro rank

Product category

Precision Measurement Instruments / Metrology Equipment

NAICS

Other Measuring and Controlling Device Manufacturing (334519)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Metrology & Dimensional Measurement (CMMs, laser trackers, gauges, surface/roughness) (IMAGAFAD)

Keywords

• Precision measurement instruments
• Surface roughness metrology
• Roundness measurement systems
• Dimensional gaging systems
• Work holding devices

Headquarters

HQ city

Milan

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Precision Measurement Instruments: Sale of precision measurement equipment including Surfometers, Profilometers, Indi-Ron roundness systems, ball arbors and chucks, hydraulic arbors, sweep gages, and Anderometer instruments. Products are sold directly to customers in manufacturing and quality control sectors.
2. Custom Fixtures and Gages: Design and manufacture of custom surface finish measurement fixtures and runout/dimensional gages for specific customer applications in automotive powertrain and gear industries.
3. Repair and Calibration Services: Specialized repair of Profilometer and Surfometer components including tracers, motor drives, amplifiers. Includes 24-hour emergency service, on-site calibration/certification, and field service for computer-controlled profiling systems.
4. Calibration and Certification Services: Calibration and certification services ensuring compliance with ISO and TS standards. Calibrations performed according to documented procedures using NIST-traceable standards, with certifications compliant with ANSI/NCSL Z540-1-1994.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Precision Devices manufactures and services precision metrology instruments and work-holding devices for industrial quality control, including surface roughness measurement systems (Series 800 Digital and Analog Surfometers, MicroAnalyzer 2000 profiler), roundness and geometry instruments (Indi-Ron 100, Indi-Ron GT-50, INDI-AC dimensional gaging), bearing noise/vibration test instruments (Anderometer), and proprietary work-holding tools (Centerline Ball Arbors and Chucks, Hydraulic Arbors and Chucks, Champion Expanding Mandrels, Sweep Gages). The company also designs custom surface-finish fixtures for automotive powertrain applications and provides repair, NIST-traceable calibration, certification, and field services on its own and on the legacy Giddings & Lewis MSO product lines (Profilometer, Proficorder, Indi-Ron, Indicorder, Indi-AC).

Product overview

Precision Devices Inc. is a manufacturer of precision metrology instruments offering a portfolio of surface texture, roundness, and dimensional measurement products. The core offerings include the Surfometer Series 800 (digital) and Analog Surfometer systems for surface roughness measurement; MicroAnalyzer 2000 for detailed surface profiling; Indi-Ron 100 and GT-50 for roundness and geometry measurement; and INDI-AC dimensional gaging systems. Supporting these are ball arbors and chucks, hydraulic arbors and chucks, Champion expanding mandrels, sweep gages, and Anderometer bearing test instruments. The company also provides custom fixture gages for specific applications (engine dampers, transmission components) and precision reference standards. Products utilize Windows-based software for data acquisition, analysis, and export. The company acquired Giddings & Lewis Metrology Systems Operations in 1998, including Profilometer, Proficorder, and Indi-AC product lines.

Differentiator

Problem solved

Functional benefit

Brands

• Anderometer®: Instrument for measuring noise and vibration in assembled bearings
• MicroAnalyzer 2000
• Series-800 Surfometer
• Champion®
• Indi-AC
• Indi-Ron
• Centerline Ball Arbors and Chucks
• Surfometer®
• Profilometer®

Products and services

• Digital Surfometer Series 800 Modular digital surface roughness measurement system with a 7-inch full color display, available in skid-referenced (Series 830, 840) and skidless (Series 860k, 870k) models. Provides multiple roughness and texture parameters (Ra, Rq, Rt, Rz, tp%, optional Rk filter), upgradable via software modules, for shop-floor and lab surface-finish measurement in manufacturing quality control.
• Analog Surfometer System Analog surface roughness measurement instruments, including System 1 (skid-referenced for Ra measurement) and System 3 (skidless for small, difficult-reach surfaces). Includes PDK, PDM, and PDG tracers with various skidmount options, for surface-finish measurement where digital systems are not required.
• MicroAnalyzer 2000 Profiling System Computer-based total surface profiling system combining an optical flat reference with advanced surface texture software running on Microsoft Windows. Offers 50+ roughness/waviness/texture parameters, single-stroke operation for multiple profile evaluations without retracing, a comparison window for direct profile comparison, and selectable filters (2RC, Spline Gaussian, Gaussian, Rk) for detailed surface texture analysis.
• Indi-Ron 100 Roundness Measurement System Console-based roundness and geometry measurement system with an air bearing spindle (standard accuracy ±2.5 µin radially and axially), 200 lb part capacity, and Windows XP/NT-based software. Supports multiple traces per document, polar and strip chart displays, and four out-of-roundness measurement methods (Minimum Zone, Least Squares, Maximum Inscribed, Minimum Circumscribed). Measures out-of-round, concentricity, squareness, flatness, and axis alignment.
• Indi-Ron GT-50 Portable/Benchtop Roundness System Portable/benchtop roundness measurement system with a precision spindle on a granite surface plate. Standard accuracy is ±3 µin radially and axially (±1 microinch optional), with Gaussian filter, selectable UPR, dual trace capability, and Windows-based software for shop-floor roundness measurement.
• Ball Arbors and Chucks (Centerline) Proprietary Centerline ball arbors and chucks used to position parts during inspection of runout, concentricity, squareness, and parallelism. Use the ball-ring principle with ultra-precision steel balls in expandable raceways; custom-built with single or multiple ball rows and self-rounding ball wear compensation, achieving repeatability of .000050 inches and free rotation capability for parts.
• Hydraulic Arbors and Chucks Self-contained hydraulic work-holding devices that expand or compress sleeves within the elastic limits of the metal. Equalized pressure provides uniform expansion around the geometric center for extreme part-positioning accuracy; minimum chucking diameter is 1/16 inch (chuck) or 1/4 inch (arbor), with expansion limits up to .005 inch at 3 inch diameter (per the .003 first inch plus .001 per additional inch formula). Suited for grinding, balancing, inspection, boring, facing, reaming, drilling, turning, shaving, hobbing, and honing.
• Champion Expanding Mandrels and Work-Holding Devices Champion-brand family of work-holding devices including expanding mandrels (split-sleeve style) in C-M, C-M-600, C-N-100, C-M-1400, F-N/P-800, and F-N/P-1800 series, plus Champion Split Vise, Swivel Jaws, Shaft Fixture, and Super V Block. T.I.R. ratings range from .0005 inch to .001 inch depending on series, used for inspection, turning, and grinding applications requiring strong holding power.
• Sweep Gages Measurement instruments for checking bores for position and runout, including Ball Arbor Sweep, Transfer Case Sweeps, and various other sweep configurations that can be incorporated into Ball Arbors.
• INDI-AC Dimensional Gaging Systems Precision gaging amplifier (PGA) family for dimensional measurements, with a solid-state design, 240x64 pixel graphical LCD, single or dual channel LVDT inputs (PGA-210 single / PGA-220 dual), measurement range up to ±0.5 mm, calibration wizard, and RS232 data output. Supports LVDT gage heads for shop-floor dimensional measurement.
• Anderometer Bearing Noise and Vibration Test Instrument Computerized instrument for measuring noise and vibration in assembled bearings. Uses a hydrodynamic spindle at 1800 RPM constant speed with BFE pneumatic preloader up to 45 kg and a BCC velocity transducer for radial vibration sensing, measuring in anderon units across three frequency bands (1.7-10, 10-60, 60-330 times per revolution). Used for bearing production testing, receiving inspection, and quality verification.
• Precision Reference Standards PDR Reference Standards available in Shop Grade (short-form certificate) and Precision Reference Grade (long-form certification) for ISO traceability, traceable to NIST.
• Repair, Calibration, and Field Service for Precision Metrology Equipment Specialized repair, calibration, and field service for Profilometer, Surfometer, and other PDI and legacy Giddings & Lewis metrology equipment. Includes repair of tracers, motor drives, and amplifiers; 24-hour emergency service; on-site calibration and certification; and field service technicians dispatched to customer sites for larger computer-controlled profiling systems. Performed by technicians with over 75 years of combined experience in the industry.

Quantifiable outcome

• Ball Arbor repeatability of .000050 inches achieved through proprietary ball-ring technology
• +3 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Market position

Competitive moat4 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Precision Devices