What IMPCO does

IMPCO Microfinishing is a privately held US specialty manufacturer founded in 1937 in Lansing, Michigan, focused exclusively on microfinishing (superfinishing) machines and services for outside-diameter precision surface finishing. Its technology reduces surface roughness on critical rotating components — crankshafts, camshafts, transmission shafts, gears, bearings, hydraulic pistons, and steering rack bars — to sub-micron levels (0.025-0.1 microns Ra), improving wear resistance, friction, and component lifespan. The company pioneered the world's first automated crankshaft microfinishing machine in 1948 and holds over 50 patents, with a product portfolio spanning high-volume dedicated OEM systems (1640XT, 1660FXT, 1240HD), flexible mid/low-volume machines (140XT, 1740XT, Atlas FM-100/SA-100), and specialized lines for transmission, pump gears, steering racks, heavy hydraulic, pin-type, and now commercial marine components (KEEL Series, 2026).

IMPCO serves Tier 1 automotive OEMs, aerospace primes, commercial marine engine builders, heavy industrial and hydraulic manufacturers, motorsports teams, and select medical device customers, with named accounts including General Motors, Ford, Honda, Mercedes-Benz, Volvo, DaimlerChrysler Aerospace, Allison Transmission, Eaton, American Axle, Parker, Thyssenkrupp, Mercury Marine, 3M, GE Health Care, Philips Healthcare, and Abbott Laboratories. Revenue is generated through four streams: capital equipment sales, contract microfinishing services, replacement parts and field service/retooling, and process development consulting — all quote-based with multi-year OEM contracts and direct enterprise sales engagement. As of November 2024, IMPCO is a US- and woman-owned business operating with 11-50 employees, partnered with Lansing Community College on a fully-funded apprenticeship program, and holding exclusive North American distribution rights for GrindMaster steering rack bar products.

Name

IMPCO

Legal name

IMPCO Microfinishing

Website

https://impco.com

Company type

Private

Founded year

1937

Operating status

Operating

Headcount range

11–50 employees

Short description

IMPCO Microfinishing, founded in 1937 in Lansing, Michigan, designs and manufactures precision microfinishing machines and provides contract finishing services for crankshafts, camshafts, gears, and hydraulic components serving Tier 1 automotive, aerospace, marine, industrial, and motorsports customers.

Ownership category

akta.pro rank

Product category

Precision Microfinishing Equipment

NAICS

Machine Tool Manufacturing (333517), Metalworking Machinery Manufacturing (33351)

SIC

Machine Tools, Metal Cutting Types (3541), Special Industry Machinery, Nec (3559)

akta.pro primary industry

Grinding, Honing & Superfinishing Equipment (IMAHADAE)

akta.pro secondary industry

CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)

Keywords

• Precision microfinishing machines
• Surface finishing equipment
• Crankshaft polishing systems
• Camshaft microfinishing solutions
• Industrial component finishing

Headquarters

HQ city

Lansing

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Microfinishing Machine Sales: Manufacture and sale of microfinishing machines ranging from flexible low-volume equipment (140XT, 1040XT) to high-volume dedicated OEM production machines (1640XT, 1660FXT, 1740XT) and specialized equipment (SMP series, Atlas series, CST600, Microteq).
2. Contract Microfinishing Services: Precision microfinishing services for outer diameter features, small batch production, pre-production parts, and upgrade from OEM to racing specifications. Includes engine and transmission components, shock absorber rods, hydraulic components, pump gears, compressor components, and flight controls.
3. Machine Parts and Service: On-site service and support, genuine IMPCO replacement parts, technical advice, new built-to-original part replacements, and machine rebuilding/retooling services.
4. Process Development and Consulting: Surface finish analysis (Ra, Rz, Rsk, Rpk measurements), process identification and parameter optimization, troubleshooting, and customized process development based on drawing requirements.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

IMPCO designs and manufactures microfinishing (superfinishing) machines that perform precision outside-diameter surface finishing on critical rotating components—including crankshafts, camshafts, transmission shafts, pump gears, steering rack bars, hydraulic piston rods, and pin-type parts. The company's machines reduce surface roughness from 0.3–0.5 microns Ra to 0.025–0.1 microns Ra, improving wear resistance, reducing friction, and extending component life for automotive, aerospace, marine, heavy industrial, and motorsports customers. IMPCO also offers contract microfinishing services, surface finish analysis, process development, replacement parts, and machine retooling.

Product overview

IMPCO manufactures a comprehensive portfolio of microfinishing machines and provides associated precision finishing services. The product line spans high-volume production systems (1640XT, 1660FXT, 1240HD) for automotive and industrial crankshaft/camshaft finishing, medium and low-volume flexible systems (140XT, 1740XT, Atlas FM-100, Atlas SA-100), and specialized equipment for transmission components (540, 1040XT), pump gears (Microteq, 1140, SMP500), steering rack bars (SMP1000), heavy hydraulic components (SMP2000 & SMP3000), and pin-type parts (CST600). The company also distributes GrindMaster products exclusively in North America and recently launched the KEEL Series for marine applications. Services include contract microfinishing, surface finish analysis, process development, machine parts/service, and retooling. The portfolio is unified by IMPCO's focus on outside-diameter precision finishing that reduces surface roughness and extends component lifespan.

Differentiator

Problem solved

Functional benefit

Products and services

• 1640XT High-Volume Crankshaft/Camshaft Microfinisher High-volume production crankshaft/camshaft microfinishing machine with gantry load, multi-level integrated processes, and max part length of 760mm; designed for Tier 1 automotive and industrial OEMs.
• 1660FXT High-Volume Microfinisher High-volume microfinisher delivering repeatability and accuracy for large components including main bearing and rod bearing diameters, targeted at automotive and industrial OEMs.
• 1240HD Heavy-Duty Microfinisher Heavy-duty microfinisher for industrial, marine and power-generation crankshafts with max part length of 5,000mm; built for large-format and demanding applications.
• 140XT Outside Diameter Microfinisher Outside diameter microfinisher for camshafts, crankshafts, balance shafts, printing drums, and pump gears with max part length of 914mm; flexible low-to-medium volume solution.
• 1740XT Camshaft Microfinisher Fast, repeatable camshaft microfinisher with modular base units customizable for production requirements; max part length 460mm.
• Atlas FM-100 Camshaft/Crankshaft Microfinisher Operator-friendly camshaft and crankshaft microfinisher with manual sequencing control and compact 2-meter footprint; max part length 1,000mm.
• Atlas SA-100 Semi-Automatic Microfinisher Semi-automatic crankshaft microfinisher achieving GBQ Level I polishing for high-volume production; max part length 1,000mm, diameter 85mm; targeted at motorsports engine builders, remanufacturers, and race shops (Formula 1, IndyCar, NASCAR).
• 540 Transmission Shaft Microfinisher Compact high-volume microfinisher for transmission shafts; max part length 525mm, diameter 85mm.
• 1040XT Continuous Centerless Microfinisher Continuous outside diameter centerless microfinisher for small shaft components; max part length 550mm, diameter 90mm.
• Microteq Flexible Microfinisher Compact flexible microfinisher for balance shafts, printing drums, pump gears, transmission shafts, and turbine shafts; max part length 490mm.
• 1140 Centerless Roller-Drive Microfinisher High throughput centerless roller-drive microfinisher for small shaft-type components; max part length 500mm, diameter 12mm.
• SMP500 Gear Pump Shaft Microfinisher Outside diameter microfinisher designed specifically for gear pump shafts with multiple control options (Siemens, Fanuc, Mitsubishi, Beckhoff); reduces Ra from 0.3 µm to 0.05 µm.
• SMP1000 Steering Rack Bar Finishing Machine Steering rack bar finishing machine with radial, superfinishing, and linear finishing options; max part length 900mm.
• SMP2000 & SMP3000 Heavy Hydraulic Piston Rod Microfinishers Heavy hydraulic piston rod and shaft microfinisher using belt, wheel and film finishing; reduces Ra from 0.4-0.5 µm to 0.025-0.1 µm.
• CST600 Pin-Type Parts Microfinisher High-productivity centerless throughfeed microfinisher for piston pins and rods with diameter range 10-75mm and max length 600mm.
• GrindMaster Steering Rack Bar Products Steering rack bar products distributed exclusively in North America by IMPCO, including sales and service support.
• KEEL Series Marine Microfinishing Solutions Microfinishing solutions engineered for continuous-duty commercial marine applications; handles components up to 12 meters long for crankshaft journals, camshaft lobes, piston rods, turbocharger shafts, fuel injection pump plungers, water pump shafts, rudder stocks, and propeller shafts.
• Contract Microfinishing Services Precision microfinishing services for outer diameter features, small batch production, pre-production parts, and custom specifications ranging from OEM to racing standards; covers engine and transmission components, shock absorber rods, hydraulic components, pump gears, compressor components, and flight controls.
• Surface Finish Analysis Service Pre- and post-process measurement services using Ra, Rz, Rsk, and Rpk metrics to verify surface finish quality for customer components.
• Process Development & Troubleshooting Service Identification of surface finish processes and parameters based on drawing requirements and grinding expectations, including customized process development and troubleshooting.
• Machine Parts & On-Site Service On-site service, support, and genuine IMPCO replacement parts with technical advice and new built-to-original part replacements for installed microfinishing equipment.
• Machine Retooling Services Rebuild/retool existing machines, retrofit for new parts, and reconfigure equipment for different components to extend equipment life and adapt to new production requirements.

Quantifiable outcome

• 30% increase in product efficiency over past five years through R&D advancements
• +3 more outcomes

Named customers26 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• GrindMastercoreChannel Partner/ Reseller/ DistributorIMPCO is the exclusive North American distributor for GrindMaster products, providing both Sales & Service for steering rack bars and related finishing equipment. This partnership extends IMPCO's product portfolio for steering component finishing applications.
• Lansing Community CollegecoreStrategic or Co-development PartnerIMPCO developed the Product Engineering Layout and Assembly Apprenticeship program in partnership with Lansing Community College and the US Department of Labor. This is a work-based program where employees work and attend college simultaneously. IMPCO pays 100% of tuition and provides tools and toolbox to apprentices. The program requires approximately 8000 hours of combined school and work to earn a Journeyman's card.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Erwin Junker Group: German manufacturer of grinding machines for crankshafts, camshafts, and tools — broad incumbent with overlapping applications to IMPCO's automotive and industrial finishing machines.
• EMAG Group: Large German metalworking machinery group offering turning, grinding, and honing solutions to automotive OEMs — broad incumbent with overlapping finishing technology but not specialized exclusively in microfinishing.

Direct peers

• Fives Cinetic Landis: Fives group's Landis brand builds crankshaft grinding and finishing equipment used by global automotive OEMs, making it a direct peer in the engine-component finishing machinery category.
• Kadia Precision: Manufacturer of precision honing, superfinishing, and deburring machines serving automotive, hydraulic, and industrial customers — direct peer in OD-finishing machinery where IMPCO competes.
• Supfina: German specialist manufacturer of superfinishing machines for flat parts, rollers, and OD components — directly competes with IMPCO in the same superfinishing/microfinishing category, serving overlapping automotive and bearing customers.
• Nagel Precision: Long-established German builder of honing, superfinishing, and precision grinding machines for crankshafts, camshafts, and cylinders — one of the closest direct competitors to IMPCO's core product portfolio.
• Glebar Company: US-based manufacturer of centerless grinding and electrochemical grinding machines, with overlapping capabilities in small-shaft and OD-finishing applications relevant to IMPCO's Microteq and 1140 product lines.
• Peter Wolters / Agathon: Swiss-headquartered builder of precision lapping, polishing, and double-disc grinding machines — competes with IMPCO's surface-finishing solutions in precision metal-finishing applications.

Emerging players

• C&B Machinery: US-based precision grinding and superfinishing service provider and equipment builder — emerging player with overlapping OD-finishing services that compete with IMPCO's contract microfinishing offering.

Others

• GrindMaster: Indian manufacturer of steering rack bar and cylindrical finishing equipment; IMPCO is GrindMaster's exclusive North American distributor, making it both a partner and an adjacent peer in steering-component finishing.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@ImpcoMicrofinishing
• LinkedInlinkedin.com/company/27096703
• Facebookfacebook.com/industrialmetalproducts

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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 IMPCO