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OTT-JAKOB: automatic tool clamping systems -
meticulously engineered and reliable

Discover our tool clamping solutions
OTT-JAKOB Technical Circle
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Our passion:
Complete clamping systems for machine tools

OTT-JAKOB Technical Circle
OTT-JAKOB Passion complete clamping systems

OTT-JAKOB develops complete tool clamping systems for machine tools. From the clamping unit to the rotary union, we manufacture all components ourselves right here in Lengenwang, Germany. With our decades of experience and our comprehensive user know-how, we offer excellent technical solutions that function reliably and guarantee high product and service quality for years to come. We call this "Long-life Clamping Technology". For you, as our customer, the purchase of a complete tool clamping system from OTT-JAKOB offers several advantages.

  • All components are optimally coordinated with each other.
  • Through the constant exchange of knowledge with leading universities, we are always at the cutting edge of technology and able to translate technological challenges into innovative product solutions.
  • Our employees and suppliers are committed to strict quality targets through consistent quality management. Through continuous improvement processes, we constantly set ourselves to higher standards.
  • Seamless quality controls and a 100% final inspection of the assemblies guarantee the highest delivery quality.
  • Whether during commissioning or in the rare event of a defect: Our in-house service department is always here to help you after the initial purchase.

Individual clamping systems:
Made to measure

OTT-JAKOB Spanntechnik GmbH has been an expert in the field of tool clamping technology for almost 50 years. Over the past decades, we have already designed thousands of individual tool clamping systems for a wide range of applications - and the number continues to grow.

Because of our experience, OTT-JAKOB knows exactly what is required of a tool clamping system: high pull-in forces, safe clamping, fast tool changes and a long service life are essential for our products. In addition, we offer constant condition monitoring to take into account the ever increasing levels of automation.

OTT-JAKOB consistently relies on a customer-specific design of its tool clamping systems. Like a tailor-made suit, OTT-JAKOB designs tool clamping systems that are individually adapted to the spindle and its application.

OTT-JAKOB-Experte-Werkzeugspannsysteme-web.jpg OTT-JAKOB Long Life Clamping Technology OTT JAKOB Technical Circle

"My team and I will be happy to advise you on the composition of an individual clamping system and the selection of suitable assistance systems."

Hans Leidl

Sales Manager

Our tool clamping solutions
on the job

OTT JAKOB Fastest Clamping System

Fastest clamping system

The miniaturisation trend for electronic components is ongoing and is being driven by developments in the field of mobile devices such as smartphones. OTT-JAKOB clamping systems designed for maximum RPMs are used in specially developed machines in order to drill the circuit boards.

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Technical data

Clamping force (static)

2,8 kN

RPM

75.000 min-1

Piston Ø

41,5 mm

Piston area

10 cm2

Max. oil volume

11 cm3

OTT JAKOB Strongest Clamping System

Strongest clamping system

Aerospace components that are subjected to high mechanical stresses, for example, undercarriages, are made of titanium or titanium alloys in modern planes. High torque is required to machine titanium due to its specific properties. High pull-in forces are needed to connect the tool holder to the spindle securely whilst absorbing the powerful forces of the machining process. Our strongest clamping systems are designed to machine difficult materials and are installed in machines and spindles that are used to manufacture aerospace components.

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Technical data

Clamping force (static)

150 kN

RPM

250 min-1

Piston Ø

130 mm

Piston area

133 cm2

OTT JAKOB Shortest Clamping System

Shortest clamping system

Many dental surgeries use a manufacturing solution that can produce replacement teeth, largely eliminating the need for castings. An intraoral camera is used to measure the tooth precisely using digital photos. The replacement tooth is then designed to fit perfectly on a computer and produced by an integrated machine tool. Fitted with our shortest clamping systems, the end product is milled from a ceramic block in minutes. The replacement tooth can often be fitted in the same session.

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Technical data

Clamping force (static)

2,3 kN

RPM

50.000 min-1

Piston Ø

18 mm

Min. release force

2,0 kN

OTT JAKOB Longest Clamping System

Longest clamping system

The growing use of wind power as a renewable source of electricity has led to the construction of increasingly large wind turbines. In offshore wind farms, turbine blade lengths of 80 m or more are not uncommon. The enormous forces generated by these blades have to be absorbed by the hubs and transferred to the gears along with the generator. Once cast, large machining and drilling centres are required to machine these huge hubs. These machines are fitted with our longest clamping systems. This makes it possible to reach and produce the necessary holes, even the internal ones.

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Technical data

Clamping force (static)

25 kN

RPM

2.000 min-1

Piston Ø

48 mm

Piston area

17,15 cm2

Max. oil volume

55 cm3