Ott-Jakob Spanntechnik

What Ott-Jakob Spanntechnik does

OTT-JAKOB Spanntechnik GmbH is a German manufacturer of precision tool clamping systems for CNC machining centers and machine tools, headquartered in Lengenwang, Bavaria. Founded in 1993 and operating under its "Long-life Clamping Technology" positioning, the company designs and produces automatic and manual clamping interfaces across industry-standard formats — Steilkegel (steep taper), HSK (Hollow Taper, originating from a RWTH Aachen collaboration), PSC (Coromant CAPTO / ISO 26623), and the jointly developed KM4X (with Kennametal) — alongside complementary components (rotary unions, unclamping units) and an assistance-systems portfolio (MSU multi-sensor unit, GAUS telemetry, Power-Check force measurement, and condition-monitoring modules).

The business model is enterprise B2B capital equipment, sold via a direct internal sales team in Germany plus a global representation network spanning 15+ countries, with wholly-owned sales and service subsidiaries in China (Shanghai), India (Ahmedabad), and South Korea (Changwon). Revenue derives from hardware sales of clamping systems and complementary components, plus an after-sales services layer covering repairs (including express repair), spare parts, refurbished units with new-product warranty, helpline support, and on-site service. Pricing is quote-based and not publicly disclosed; selected channel relationships are configured as multi-year framework agreements. Demand generation is concentrated in the major international machine tool trade fairs — EMO, AMB, IMTS, JIMTOF, MSV — supplemented by a multilingual web presence, an Infothek online portal for registered customers/partners, and active LinkedIn/Facebook/Instagram/YouTube channels.

The customer base consists primarily of machine tool OEM builders integrating OTT-JAKOB clamping systems into CNC machining centers serving automotive, aerospace, and general manufacturing end-markets, together with manufacturing end-users purchasing condition-monitoring and force-measurement solutions for process quality and predictive maintenance; GF Machining Solutions is publicly recognized as a Top 10 Supplier relationship. The company is privately held and owner/family-controlled (Frank Jakob, Commercial Director and shareholder; Thomas Schreyer, Geschäftsinhaber / Managing Director, HR), with no disclosed PE/VC backing, no M&A activity, ISO 9001 certified, and an employee base of 251–500.

Name

Ott-Jakob Spanntechnik

Legal name

OTT-JAKOB Spanntechnik GmbH

Website

https://ott-jakob.de

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

251–500 employees

Short description

OTT-JAKOB Spanntechnik GmbH is a German manufacturer of precision tool clamping systems and condition-monitoring solutions for CNC machine tools, serving global OEM machine builders and end-users through direct sales subsidiaries and a representation network spanning 15+ countries.

Ownership category

akta.pro rank

Product category

Machine Tool Components

NAICS

Machine Tool Manufacturing (333517), Cutting Tool and Machine Tool Accessory Manufacturing (333515), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Machine Tools, Metal Cutting Types (3541), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

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

akta.pro secondary industries

Motor Encoders, Feedback & Condition Monitoring (Encoders, Vibration, Predictive) (IMAGACAJ), Motion & Machine Control (CNC, Robotics Controllers, Servo/Motion Controllers) (IMAGABAG)

Keywords

• Tool clamping systems
• Machine tool components
• Rotary unions
• Condition monitoring systems
• Force measurement devices

Headquarters

HQ city

Lengenwang

HQ country

Germany

HQ region

Europe

Offices5 records

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. Automatic & Manual Tool Clamping Systems: Sale of tool clamping systems and interfaces (Steilkegel, HSK, PSC, KM4X) as core manufactured components for machine tool manufacturers and end-users. These are capital equipment components, typically sold as part of new machine tool configurations or as replacement/retrofit solutions.
2. Clamping Technology Accessories & Peripheral Systems: Sale of unclamping units (Löseeinheiten), rotary unions (Drehdurchführungen), condition monitoring systems, MSU sensor units, GAUS telemetry systems, and Power-Check force measurement devices as complementary products to the core clamping systems.
3. After-Sales Service, Repairs & Spare Parts: Comprehensive after-sales service including helpline support, standard and express repairs, spare parts supply, and on-site service. Repairs are available for clamping systems and rotary unions, including refurbished units with the same warranty as new products.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

OTT-Jakob Spanntechnik manufactures tool clamping systems for CNC machining centers, based on proprietary elastic clamping technology across multiple interface standards (Steilkegel, HSK, PSC, KM4X). The company also produces rotary unions (Drehdurchführungen), unclamping units, and complementary digital assistance systems including the MSU multi-sensor unit, GAUS telemetry system, Power-Check force measurement devices, and condition monitoring solutions for Industry 4.0 integration.

Product overview

OTT-JAKOB Spanntechnik GmbH is a leading manufacturer of tool clamping systems for machining centers, operating under the 'Long-life Clamping Technology' brand. The product portfolio centers on automatic and manual tool clamping systems with multiple interface standards including Steilkegel (Steep Taper), HSK (Hohlkegel), PSC (Polygonal Shaft Cone), and KM4X. The company offers comprehensive assistance systems including condition monitoring, the MSU multi-sensor unit with IO-Link connectivity, GAUS telemetry systems, and Power-Check force measurement devices (Power-Check 2, Power-Check Magazine, Power-Check Micro). Supporting components include rotary unions and unclamping units. The modular architecture allows customers to configure complete clamping solutions combining different interfaces, monitoring systems, and measurement equipment. The company also provides comprehensive service including repairs, spare parts, and express repair services.

Differentiator

Problem solved

Functional benefit

Products and services

• Steilkegel (Steep Taper) Automatic Clamping System Tool clamping system based on the steep taper interface standard for CNC machining centers.
• HSK (Hohlkegel) Automatic Clamping System Hollow taper interface standard for automatic tool clamping, originated from OTT-Jakob collaboration with RWTH Aachen University and now the industry standard for machine tool technology.
• PSC (Polygonal Shaft Cone) Automatic Clamping System High-precision polygonal taper interface (Coromant CAPTO) with self-centering properties that prevent radial and axial play, standardized as ISO 26623.
• KM4X Automatic Clamping System High-performance clamping interface for high clamping forces developed with Kennametal for machining difficult-to-machine materials like titanium alloys. Available in KM4X63 and KM4X100 sizes.
• Rotary Unions (Drehdurchführungen) Mechanical components providing fluid or gas media from fixed to rotating elements through the spindle, available in multiple configurations for various media.
• Unclamping Units (Löseeinheiten) External force units required to release clamping systems, available in hydraulic, pneumatic, and electrical drive variants with various configuration options.
• Manual Clamping Systems Manual tool clamping systems including PSC, HSK, and PTI series designed for quick manual tool changes with reduced equipment time.
• PTI (Revolverdrehschnittstelle) Mechanical turret lathe machine interface with innovative clamping technology, developed as part of the REKUNORM project for standardization.
• Power-Check 2 Device controller for measuring clamping force in clamping systems, available in four basic versions for optimal measurement precision with interchangeable adapters and USB data export.
• Power-Check Magazine Automatic radio-transmitting clamping force measurement device designed for difficult-to-access machines and Industry 4.0 automation, with IP67 protection class and 2-year battery life supporting 30,000 measurements per charge.
• Power-Check Micro Specialized force measurement version for smallest clamping systems, supporting HSK EZ15, E16, and E20 interfaces.
• MSU (Multisensor Unit) 3-in-1 smart sensor system integrated into OTT-Jakob clamping units combining pull-in bar position identification, unclamping piston position detection, and rotary union leak detection for predictive maintenance.
• MSU IO-Link compact IO-Link enabled version of the MSU sensor system for smart machine concepts with digital connectivity to machine control systems.
• Condition Monitoring Systems Leak detection and wear monitoring systems for rotary unions to prevent unplanned machine downtime, including internal leak control (1K-GD-CM) and wear control (1K-GD-C) for detecting sealing ring material wear.
• GAUS Telemetry System Modular telemetry system for monitoring elastic force, temperature, and vibrations on rotating components during machining operations, operating continuously at spindle speeds up to 32,000 rpm.
• 2KA-ME Rotary Union All-in-one rotary union with integrated condition monitoring function.
• Radio Receiving Units Radio data transmission equipment including Radio-pendrive USB and RS485 Bus Antenna for receiving Power-Check measurement values, with digital or analog output options.

Quantifiable outcome

• Reduced unplanned machine downtime through condition monitoring and predictive maintenance
• +3 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

15 partnerships are on record, tiered core, major and regional.

• JAKOB AntriebstechnikcoreStrategic or Co-development Partner · 1 January 2017Joint development partnership for digital force measurement systems. The two companies co-developed a digital force capture system which won the MM-Award (Innovation Award) in 2017, combining OTT-JAKOB's clamping technology with JAKOB Antriebstechnik's drive technology expertise.
• GF Machining SolutionsmajorChannel Partner/ Reseller/ Distributor · 1 January 2016GF Machining Solutions is a major machine tool builder that awarded OTT-JAKOB 'Top 10 Supplier' status in 2016. This reflects a strong supplier-customer relationship where OTT-JAKOB's clamping systems are integrated into GF's machining solutions.
• KennametalcoreStrategic or Co-development Partner · 1 January 2016OTT-JAKOB partnered with Kennametal to develop the KM4X clamping interface. Kennametal provides the collet/chuck kits for the KM4X system, and OTT-JAKOB integrates them into its modular clamping architecture. This partnership creates a combined product offering for high-performance machining applications.
• Fischer Spindle TechnologyregionalChannel Partner/ Reseller/ DistributorSales and service partner for the Russian market, handling local distribution and after-sales support for OTT-JAKOB clamping products.
• R. Jung GmbHregionalChannel Partner/ Reseller/ DistributorAuthorized representation for France, handling local sales and customer support with French-speaking contacts available.
• GEWEFA UK Ltd.regionalChannel Partner/ Reseller/ DistributorAuthorized representation for the United Kingdom, providing local sales and service for OTT-JAKOB products.
• CIHAL s.r.o.regionalChannel Partner/ Reseller/ DistributorAuthorized representation for Slovakia and Czech Republic, providing local sales and service support.
• SKFregionalChannel Partner/ Reseller/ DistributorSKF serves as the authorized representation for Hungary, providing local sales contacts and service for OTT-JAKOB products.
• Fukuda CorporationregionalChannel Partner/ Reseller/ DistributorAuthorized representation for Japan, providing local sales and customer support. Multiple contacts available (Mr. Nonomura, Mr. Nagamoto, Mr. Sakai).
• Eurotekna S.r.l.regionalChannel Partner/ Reseller/ DistributorAuthorized representation for Italy, handling local sales and service.
• Advanced Machine & Engineering Co. (AME)regionalChannel Partner/ Reseller/ DistributorAuthorized representation for the United States, headquartered in Rockford, Illinois. Handles local sales and service for the US market.
• Engrefer C.C.R. EireliregionalChannel Partner/ Reseller/ DistributorAuthorized representation for Brazil (Sorocaba, SP), providing local sales and service.
• HUNG CHIH LTD. CO.regionalChannel Partner/ Reseller/ DistributorAuthorized representation for Taiwan, providing local sales and service support.
• OTT-JAKOB Elementy Maszyn s.c.regionalChannel Partner/ Reseller/ DistributorAuthorized representation for Poland, handling local sales and service operations.
• OTT-JAKOB WELTWEIT (Iñigo Irazabalbeitia)regionalChannel Partner/ Reseller/ DistributorIndependent sales representative for Spain, providing local sales contact and support.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Market position

Strengths4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCixEiVEKJR1wbpRfhanIScA
• Facebookfacebook.com/OttJakobSpanntechnikGmbh
• LinkedInde.linkedin.com/company/ott-jakob-spanntechnik-gmbh
• Instagraminstagram.com/ottjakob.karriere

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries3 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 Ott-Jakob Spanntechnik