What SPINDEL Electronics does

SPINDEL Electronics is a privately held, founder-led engineering firm headquartered in Grand Rapids, Michigan, that designs, manufactures, and supports high-frequency motor and spindle drives for low-inductance, high-speed industrial applications. Operating under the SPINDEL brand since 1995 with roots dating to 1986, the company specializes in drives capable of supporting motor speeds up to 360,000 RPM, using proprietary waveform optimization, IGBT-based power stage switching, dv/dt-mitigating output filter reactors, and high-frequency transformers engineered for demanding environments.

The product portfolio centers on the proprietary AV Series drives, complemented by Sieb & Meyer high-frequency converters (sold and supported under SPINDEL's exclusive North American representation), custom-engineered drive systems and converters (including sealed IP54/NEMA 12 enclosures, multi-motor configurations, and universal spindle-test drives), and ancillary hardware — motor filter reactors/chokes and step-down, step-up, and Scott-T high-frequency transformers. Revenue is generated through one-time hardware sales of proprietary and partner drives plus accessories, alongside professional services covering component-level repair, bench-tested under-load validation, engineered replacement and retrofit solutions, and engineering consulting.

SPINDEL serves OEMs, machine builders, and end users operating mission-critical equipment across machine-tool/CNC machining, industrial automation and robotics, rotational testing, aerospace and defense (400 Hz systems), flywheel energy storage, friction welding, turbo machinery, and process equipment, with on-site support across the United States and Mexico. Distribution is exclusively direct, with senior drive engineers scoping, specifying, and commissioning each project rather than going through resellers or channel partners. Operations are run from a single facility with a small employee base of 1–10 people and no disclosed external institutional ownership.

Name

SPINDEL Electronics

Legal name

SPINDEL Electronics

Website

https://spindel.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

1–10 employees

Short description

SPINDEL Electronics designs, manufactures, and services high-frequency motor and spindle drives for low-inductance, high-speed industrial applications up to 360,000 RPM, serving OEMs and manufacturers in CNC machining, aerospace, energy storage, and rotational testing across North America.

Ownership category

akta.pro rank

Product category

Industrial Motor Drives

NAICS

Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Power, Distribution, and Specialty Transformer Manufacturing (335311)

SIC

Power, Distribution & Specialty Transformers (3612), Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

Spindles & High-Speed Drives (Machine Tool Spindles, High-speed Motors) (IMAGACAL)

Keywords

• High-frequency motor drives
• Spindle drive manufacturing
• Industrial drive repair
• PWM frequency converters
• High-speed motor control

Headquarters

HQ city

Grand Rapids

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. High-Frequency Drive Sales (AV Series, Sieb & Meyer, Custom): Sale of proprietary high-frequency drives including the AV Series, Sieb & Meyer product line, engineered drive systems in protective enclosures, and fully custom drive solutions configured for specific OEM or application requirements.
2. Drive Repair Services: Component-level repair and technical diagnostics for high-frequency drives, including power stage repair, IGBT replacement, control board diagnostics, and full bench testing under load simulation.
3. Drive Replacement Solutions: Engineered drop-in or retrofit replacement solutions for obsolete or unsupported high-frequency drives, including parameter review, application-specific configuration, and integration support for existing motors and controls.
4. Engineering Consulting: Engineering consulting engagements covering motor parameter analysis, high-frequency inverter optimization, retrofit engineering support, prototype validation testing, and production scaling strategy for OEMs, manufacturers, and automation teams.
5. Motor Filter Reactors and Chokes: Sale of motor filter reactors and chokes designed for high-frequency PWM drive systems to mitigate dv/dt, reduce current ripple, and extend motor insulation life.
6. High-Frequency Transformers: Sale of high-frequency transformers including step-down, step-up, and Scott-T configurations for voltage matching, isolation, and compatibility in PWM drive systems.
7. Sieb & Meyer Support and Technical Services: As the official North American representative for Sieb & Meyer, providing advanced technical support, diagnostics, repair, replacement services, and on-site troubleshooting for Sieb & Meyer high-frequency converters.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

SPINDEL Electronics designs, manufactures, and supports high-frequency motor and spindle drives for low-inductance, high-speed motor applications up to 360,000 RPM. The portfolio includes the proprietary AV Series drives, Sieb & Meyer high-frequency converters (as official North American representative), custom-engineered drive systems, motor filter reactors, and high-frequency transformers, complemented by component-level drive repair, replacement, and engineering consulting services.

Product overview

SPINDEL Electronics offers a portfolio of precision high-frequency drives and power electronics solutions. The core product line includes AV Series Drives (their proprietary brand) and Sieb & Meyer Drives (as the official North American representative). The portfolio extends to custom-engineered drive systems and converters, custom drives for non-standard applications, and complementary accessories including motor filter reactors/chokes and high-frequency transformers. The company also provides comprehensive services including drive repair, replacement, engineering consulting, and technical support. Their products are designed for low-inductance, high-speed motor applications up to 360,000 RPM capability, serving industrial sectors such as machine tools, rotational testing, turbo machinery, and energy storage.

Differentiator

Problem solved

Functional benefit

Products and services

• AV Series Drives Precision engineered high frequency drives designed for low inductance, high speed motor applications in demanding industrial environments, capable of up to 360,000 RPM. Sold to OEMs, machine builders, and manufacturers operating mission-critical equipment.
• Sieb & Meyer Drives High-frequency converters sourced from Sieb & Meyer and sold in North America by SPINDEL under its official representation agreement. Targeted at manufacturers using Sieb & Meyer high-speed motor applications.
• Engineered Drive Systems & Converters Custom-configured drive systems including sealed enclosures (IP54/NEMA 12), multi-motor drive configurations, and universal drives for spindle testing. Engineered for OEM or application-specific requirements.
• Custom Drives Custom-designed and configured drive and converter solutions engineered for non-standard applications when standard frequency drives will not meet requirements.
• Motor Filter Reactors / Chokes Output protection devices for high-frequency and long cable installations that filter voltage and current, increase motor lifespan, and reduce electrical noise in high-frequency PWM drive systems.
• High-Frequency Transformers Voltage matching and isolation transformers specifically designed for inverter-based applications, including step-down, step-up, and Scott-T configurations for PWM drive systems.
• Engineer Consulting Engineering consulting engagements covering motor parameter analysis, high-frequency inverter optimization, retrofit engineering support, prototype validation testing, and production scaling strategy. Delivered to OEMs, manufacturers, and automation teams.
• Drive Repair Component-level repair and technical diagnostics for high-frequency drives, including power stage repair, IGBT replacement, control board diagnostics, and full bench testing under load simulation for legacy and hard-to-support systems.
• Drive Replacement Engineered drop-in or retrofit replacement solutions for obsolete or unsupported high-frequency drives, including parameter review, application-specific configuration, and integration support for existing motors and controls.
• SPINDEL Drive Support Technical support for SPINDEL brand high-frequency drives, including troubleshooting, parameter review, and integration assistance.
• Sieb & Meyer Support Advanced technical support, diagnostics, repair, replacement services, and on-site troubleshooting for Sieb & Meyer high-frequency converters across the United States and Mexico.

Quantifiable outcome

• Reduced engineering and troubleshooting time by 45+ hours per month through correctly specified high-frequency drives and expert technical support.
• +4 more outcomes

Named customers3 records

Segments8 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Sieb & MeyercoreStrategic or Co-development PartnerSPINDEL Electronics serves as the official North American representative for Sieb & Meyer high-frequency converters. This exclusive representation covers advanced technical support, diagnostics, repair, and replacement services for Sieb & Meyer drives throughout the United States and Mexico. SPINDEL provides on-site technical support, real-time fault analysis, waveform evaluation, thermal assessment under load, and integration troubleshooting for Sieb & Meyer systems.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Bosch Rexroth: Large industrial drive and motion-control portfolio serving machine tools, automation, and high-speed spindle applications. Overlaps with SPINDEL on high-speed spindle drives but as part of a much broader portfolio.
• Siemens (SINAMICS drives): Global industrial-drive manufacturer with high-speed and servo-drive offerings used in machine tool and CNC applications. Competes with SPINDEL in spindle drive performance and reliability for OEMs.
• Yaskawa: Servo and general-purpose drive manufacturer with a strong installed base in machine tools and high-speed motion control. Comparable to SPINDEL on spindle drive functionality but with much broader product and geographic reach.
• Beckhoff Automation: PC-based control and drive vendor serving machine builders and high-speed automation. Comparable on motion-control performance for spindle and machining applications, though integrated with broader automation platforms.
• Danfoss Drives: Global VFD and drive manufacturer serving industrial automation, machine tools, and high-speed applications. Competes with SPINDEL broadly on industrial drives, though with a wider portfolio.
• ABB: Broad industrial drives, motors, and motion portfolio used across discrete and process manufacturing. Overlaps with SPINDEL in high-speed spindle and machine-tool drive applications, though ABB spans far more categories.
• Parker Hannifin (Industrial Drives): Industrial motion and drive provider with AC, servo, and inverter products used in machine tools and high-speed automation. Overlaps with SPINDEL on high-frequency drive applications for OEMs.

Direct peers

• Sieb & Meyer: German manufacturer of high-frequency converters and drives for high-speed motors. SPINDEL is its official North American representative, and the two compete and collaborate in the same product category for the same customer base.
• Kollmorgen: Servo motor and drive specialist widely used in high-speed spindle and precision machine tool applications. Closely comparable to SPINDEL in target customer and high-speed motion performance.
• Control Techniques (Nidec): Specialist industrial drive manufacturer with high-performance AC and servo drives serving machine tool, spindle, and high-speed motor applications. Direct overlap with SPINDEL on drive products for precision high-speed systems.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/spindel-electronics
• Xx.com/SPINDELElectro1

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

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 SPINDEL Electronics