What Kessler does

KESSLER (legally Franz Kessler GmbH) is a privately held German manufacturer of precision motor spindles and direct drive technology for the machine tool industry and adjacent industrial applications, headquartered in Bad Buchau, Germany. Founded in 1923 by Franz Kessler, the company employs more than 600 people and self-describes as Europe's largest motor spindle manufacturer and the world market leader for motor spindles. Its core product portfolio is organized into modular spindle lines for milling (V LINE vertical, H LINE horizontal, MT LINE 5-axis/mill-turn, HC LINE heavy cutting/aerospace, PC LINE high-speed), turning spindles, grinding spindles, a family of direct drive motors (torque, synchronous, asynchronous, servo, linear), and system technology including Head LINE 2-axis fork milling heads and Table LINE rotary/rotary-tilt tables.

The company's technology is differentiated by proprietary platforms including the COOLMOTION® torque motor generation, the Quick Connect Cartridge (QCC) quick-change system, and an unusually deep vertical integration: stators, rotors, shafts, bearing housings, and end shields are produced in-house on more than 200 CNC machines, and every component is 100% tested. Quality and energy management are certified to ISO 9001:2015 and ISO 50001 respectively. KESSLER generates revenue primarily through direct B2B sales of these configured hardware solutions to machine tool OEMs, supplemented by a tiered aftermarket service offering (Smart Repair, Express Repair within 5 days, Master Repair with 12-month warranty, and 24-hour field service in Europe) and worldwide spare parts shipments.

Commercial reach is global, executed through direct enterprise field sales out of Germany, wholly-owned subsidiaries in Plymouth, MI (USA) and Shanghai (China), and a network of sales and service partners across China, Japan, Spain, Italy, France, and South Switzerland. Beyond the primary machine tool OEM segment, KESSLER has extended its high-torque direct drive motors into cable car/ropeway (e.g., Bartholet Maschinenbau AG Laoshan gondola in China, Le Corbier ski resort in France), forestry cable lines (KONRAD Forsttechnik E-LINER EL40-2), and dredging (Dredge Yard cutter suction dredgers) applications, demonstrating the breadth of its torque motor IP. Pricing is quote-based and not publicly disclosed.

Name

Kessler

Legal name

Franz Kessler GmbH

Website

https://kessler-group.biz

Company type

Private

Founded year

1923

Operating status

Operating

Headcount range

51–100 employees

Short description

KESSLER (Franz Kessler GmbH) is a German, privately held manufacturer of precision motor spindles, direct drive motors, and 2-axis heads/rotary tables, primarily serving machine tool OEMs and selected industrial customers in cable cars, forestry, and dredging worldwide.

Ownership category

akta.pro rank

Product category

Industrial Motor Spindles

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

Motors & Generators (3621)

akta.pro primary industry

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

akta.pro secondary industry

DC Motors (Brushed, Brushless DC) (IMAGACAB)

Keywords

• Motor spindles
• Direct drive motors
• Machine tool components
• CNC spindle systems
• Precision industrial motors

Headquarters

HQ city

Bad Buchau

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Motor spindles and systems sales: KESSLER generates primary revenue from the design, manufacture, and sale of motor spindles (H LINE, V LINE, MT LINE, HC LINE, PC LINE), 2-axis fork milling heads (Head LINE), and rotary tables/rotary tilt tables (Table LINE) to machine tool manufacturers and industrial companies. Products are sold as standard catalog items and custom-configured solutions.
2. Direct drive motors sales: Sale of torque motors, synchronous motors, asynchronous motors, servo motors, and linear motors for industrial applications including machine tools, cable cars, forestry equipment, dredgers, and other specialized uses. Motors are available in standard configurations and custom builds.
3. Spindle and system repair services: Comprehensive repair services including Smart Repair (cost-efficient, 21-day delivery), Express Repair (5-day delivery, focused on down-time minimization), and Master Repair (new spindle quality, 12-month warranty). Field service available within 24 hours in Europe, spare parts support, and maintenance services.
4. Spare and wear parts: Worldwide shipping of original KESSLER spare parts with expert consulting, prompt quotation, and 12-month warranty.

Go-to-market motion2 records

Distribution channels6 records

Marketing channels4 records

Core offering

KESSLER designs and manufactures electric motor spindles (milling, turning, and grinding spindles) as well as directly driven 2-axis fork milling heads and rotary/rotary tilt tables for the machine tool industry. The company also produces a full line of direct drive motors (torque, synchronous, asynchronous, servo, and linear motors) for industrial applications including cable cars, forestry equipment, and dredging machinery, and provides associated repair and field services.

Product overview

KESSLER is a manufacturer of precision motorized spindles, direct drive motors, and machine tool systems. The product portfolio includes multiple spindle lines (V LINE for vertical machining, H LINE for horizontal applications, HC LINE for heavy cutting, MT LINE for 5-axis machining, PC LINE for high-speed precision work), turning spindles, and grinding spindles. Direct drive technology encompasses torque motors, synchronous motors, asynchronous motors, servo motors, and linear motors. System technology includes Head LINE 2-axis milling heads (MINI 2AH, SMALL 2AH, MEDIUM 2AH, MEDIUM 2AH Pro) and Table LINE rotary tables and rotary tilt tables (MINI, SMALL, MEDIUM, LARGE). Services include Smart Repair, Master Repair, Express Repair, and Field Service for maintenance and support. The company operates as a one-stop solution provider for the machine tool industry.

Differentiator

Problem solved

Functional benefit

Brands

• V LINE: Motor spindles for vertical machining, suitable for tilting operation, milling, and turning operations
• H LINE
• MT LINE
• HC LINE
• PC LINE
• Head LINE
• Table LINE
• COOLMOTION
• QCC (Quick Connect Cartridge)
• KESSLER energy

Products and services

• V LINE Milling Spindles Vertical machining milling spindles with modular design for tilting operation, milling, and turning operations via shaft clamping, for processing different materials and workpieces in small and large-scale production. Targeted at machine tool manufacturers.
• H LINE Milling Spindles Horizontal machining milling spindles for the automotive industry and process machines, performing milling, drilling, thread cutting, grinding, and boring of aluminum, cast iron, and steel with speeds up to 25,000 rpm and torque exceeding 400 Nm. Targeted at automotive and process machine manufacturers.
• HC LINE Milling Spindles Heavy cutting milling spindles designed for aerospace titanium machining and processing of large-scale parts. Targeted at aerospace and heavy-industry machine tool builders.
• MT LINE Milling Spindles Very short construction milling spindles with integrated release unit and rotary union in the shaft, designed for 5-axis machining and use in tilting heads, with optional shaft clamping for turning operations. Targeted at 5-axis machine tool manufacturers.
• PC LINE Milling Spindles High-speed, high-power, high-accuracy milling spindles for precision machining applications with special-purpose solutions. Targeted at precision machine tool manufacturers.
• Turning Spindles Lathe spindles with operating speed ranges up to 8,000 rpm and torque values exceeding 1,700 Nm, available in various designs and interfaces for flexibility and maximum performance reserves. Targeted at lathe and turning machine manufacturers.
• Grinding Spindles Internal and external grinding spindles in sizes from 80 to 250 mm with hybrid bearing variants offering high radial and axial rigidity, providing highly precise concentricity, thermal stability, and maximum vibration quality. Targeted at grinding machine manufacturers.
• Torque Motors High-dynamics torque motors with high torque and compact design for direct drive applications that increase machine productivity while reducing operating and energy costs. Targeted at machine tool, cable car, forestry, and dredging equipment manufacturers.
• Synchronous Motors High-efficiency synchronous motors achieving up to 98 percent efficiency with high performance density in compact design, used in pumps, compressors, and machines. Targeted at industrial pump, compressor, and machinery manufacturers.
• Asynchronous Motors Robust all-rounder asynchronous motors for industrial deployment with stability and minimal maintenance requirements, ranging from constant speed small motors to drives with several hundred kilowatts. Targeted at general industrial equipment manufacturers.
• Servo Motors Flexible and precise servo motors with compact design, high performance density, and low mass moment of inertia for highly dynamic applications. Targeted at automation and motion control system builders.
• Linear Motors Linear motors with outstanding precision, acceleration, and process speed for machine tools and positioning systems with low wear and minimum maintenance requirements. Targeted at machine tool and positioning system manufacturers.
• Head LINE (2-axis Heads) Compact and rigid 2-axis fork milling heads with KESSLER spindles and motors, available in MINI 2AH, SMALL 2AH, MEDIUM 2AH, and MEDIUM 2AH Pro models, providing high flexibility for 5-axis machining applications. Targeted at machine tool builders requiring 5-axis simultaneous processing capability.
• Table LINE (Rotary Tables and Rotary Tilt Tables) Modular system of single-axis rotary tables and dual-axis rotary tilt tables using direct drive torque motors, available in MINI, SMALL, MEDIUM, and LARGE sizes with options for high-speed rotary tables for turning operations. Targeted at machine tool manufacturers requiring 5-axis simultaneous processing.
• Smart Repair Cost-efficient spindle repair service with diagnosis and quotation within 4 days, using exclusive KESSLER original spare parts with optional technology upgrades and redelivery within 21 days after approval. Targeted at machine tool operators needing dependable repair turnaround.
• Master Repair Comprehensive spindle repair to new spindle quality with extensive diagnosis within 4 days, offering cost savings compared to new spindles with a 12-month warranty on the entire motor spindle. Targeted at customers requiring near-new spindle performance without full replacement cost.
• Express Repair Fast turnaround repair service with diagnosis and quotation within 4 days and redelivery within 5 days after approval, minimizing machine downtime. Targeted at customers requiring minimal downtime for critical production equipment.
• Field Service On-site spindle service with 24-hour response time in Europe, including spindle health checks, on-site repair, optimization, and installation with commissioning. Targeted at European machine tool operators needing rapid on-site response.

Quantifiable outcome

• 40% increase in on-time delivery after implementing a digital production planning system
• +4 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Bartholet Maschinenbau AGcoreStrategic or Co-development Partner · 1 January 2018Bartholet Maschinenbau AG has been a KESSLER customer since 2018. The company uses KESSLER's powerful torque motors in cable car and gondola systems, including the Laoshan gondola in eastern China which transports over 2,000 people per hour at 5 m/s travel speed.
• KONRAD ForsttechnikcoreStrategic or Co-development PartnerKESSLER developed a custom torque motor external rotor (E-LINER EL40-2) for KONRAD Forsttechnik's cable line forestry equipment. The motor operates simultaneously as motor and generator, featuring near-silent operation and low maintenance requirements for timber harvesting in rough terrain.
• Dredge YardcoreStrategic or Co-development PartnerKESSLER supplies high-performance torque motors for Dredge Yard's cutter suction dredgers and auger dredgers used in environmental remediation of rivers, harbours, canals, lakes, lagoons, and dams. The motors deliver up to 25,000 Nm torque at 25-90 rpm with up to 79 kW output.
• Porsche Design StudiosminorStrategic or Co-development PartnerPorsche Design Studios designed the gondola with integrated glass floor for the Laoshan cable car system that uses KESSLER torque motors. The collaboration between Bartholet Maschinenbau AG and Porsche Design Studios resulted in a premium passenger experience.
• Metzner Industrietechnik GmbH (China)coreChannel Partner/ Reseller/ DistributorMetzner Industrietechnik GmbH serves as KESSLER's sales partner in China, operating from Shanghai (Rm 605, Sheng Gao International Building, No. 137 XianXia Road).
• Dynamic Tools Corporation / Dynex (Japan)coreChannel Partner/ Reseller/ DistributorDynamic Tools Corporation (Dynex) serves as KESSLER's sales partner in Japan, operating from Seikadai, Soraku-Gun, Kyoto.
• Redex Spain S.L.coreChannel Partner/ Reseller/ DistributorRedex Spain S.L. serves as KESSLER's sales partner in Spain, operating from Derio (Parque Tecnológico Ed. 804, 48160 Derio).
• Costantino Caristia (Italy and South Switzerland)coreChannel Partner/ Reseller/ DistributorCostantino Caristia serves as KESSLER's sales representative for Italy and South Switzerland, based in Italy.
• Electrobroche Concept (France)coreChannel Partner/ Reseller/ DistributorElectrobroche Concept serves as KESSLER's service partner in France, operating from Noeux-les-Mines (Z.I N° 1 Rue Lavoisier, 62290 Noeux-les-Mines).
• SMZ Italia s.r.l (Italy)coreChannel Partner/ Reseller/ DistributorSMZ Italia s.r.l serves as KESSLER's service partner in Italy, operating from Volpiano (Via Brandizzo 184/186, 10088 Volpiano TO).
• Talleres MYL S.A.U. (Spain and Italy)coreChannel Partner/ Reseller/ DistributorTalleres MYL S.A.U. serves as KESSLER's service partner in Spain (Mendaro-Gipuzkoa) and Italy.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Weiss Spindeltechnologie GmbH: German manufacturer of high-speed motor spindles, direct-drive spindles, and CNC rotary tables for the machine tool industry. Closely comparable to KESSLER on product portfolio (motor spindles, rotary axes), customer base (CNC machine builders), and technology approach (direct drive).
• Cytec Zylinder GmbH: German specialist in hydraulic cylinders and high-speed motor spindles for machine tools. Direct comparable to KESSLER in motor spindle manufacturing with overlapping CNC machine tool customers.
• Fischer AG Präzisionsspindeln: Swiss precision spindle maker producing motor spindles, grinding spindles, and high-frequency spindles for machine tools. Direct competitor in the same European premium spindle niche that KESSLER leads.

Broad incumbents

• Bonfiglioli Riduttori S.p.A. Italian industrial gear, drive, and motor manufacturer serving industrial automation, machine tools, and mobile machinery. Overlaps with KESSLER on industrial direct-drive motors and motion components for machine tool builders.
• Nidec Corporation: Japanese global motor manufacturer with a substantial industrial motor and machine tool spindle business. Overlaps with KESSLER on high-speed motor spindles and servo motors for CNC machines, but at vastly greater scale and broader product scope.
• Fanuc Corporation: Global leader in CNC systems, servos, and ROBOTs, producing its own spindle motors and servo drives integrated into CNC machines. Compares to KESSLER on motor technology for machine tools but competes more as a CNC system integrator than a dedicated spindle supplier.
• Bosch Rexroth AG: Major supplier of drive and control technology including servo motors, spindle drives, and linear motion systems for machine tools. Overlaps with KESSLER on motor and motion components for CNC machinery as part of a much broader factory automation portfolio.
• Siemens AG (Industrial Drive Technology): Global incumbent producing SINAMICS drives, SIMOTION motion control, and a broad portfolio of servo, torque, and high-speed motors for industrial applications including machine tools. Overlaps with KESSLER on direct-drive motors but operates across vastly more end markets.
• ABB Motion: Global leader in motors, generators, and drives under the ABB Motion banner, serving industrial automation, machinery, and process industries. Competes with KESSLER in industrial motor and drive technology but at much greater scale and product breadth.

Emerging players

• Wittenstein SE: German mechatronics specialist producing servo motors, planetary gearheads, and actuator systems for machine tools and robotics. Adjacent competitor in direct-drive motion technology used by CNC machine builders that KESSLER also serves.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 Kessler