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            Your advantages of hydraulic expansion toolholders from the market leader

            SCHUNK iTENDO2

            • Sophisticated technology with simple operation
            More than 30 years of experience in designing hydraulic expansion technology

            • Micron precise tool change in seconds without
              peripheral equipment
            Time savings due to reduced set-up times and no investment
            and energy costs for additional clamping devices

            • Excellent vibration damping
            Micro-blowouts are prevented, best workpiece surfaces, machine spindle protection, increased tool service life resulting in a reduction of costs

            • Fine-balanced by default
            With a balancing grade of G2.5 at 25,000 RPM,
            suitable for high speeds of rotation.

            • Permanent run-out and repeat accuracy
              < 0.003 mm
            Even cutting action, increased tool service life,
            and reduced costs for regrinding or
            buying new tools

            • Dirt grooves for reliable torque transmission
            Dry clamping surfaces, by displacement of oil,
            grease or lubricant residues into the dirt groove

            • High level of flexibility
            Clamping of different diameters due to the use of slotted or coolant-proof intermediate sleeves

            Benefit from the inventor's experience

            Hydrodehn logo

            • SCHUNK - the pioneer in hydraulic expansion technology
            • The first clamping tools were produced with the hydro-expansion principle as early as 1980 for a wide range of our customers' applications
            • Our expansion toolholders for clamping shank tools were standardized in 1983
            • In response to the already constantly increasing requirements of dynamic production technology, a patent was filed on 02/26/1990
            • TENDO was launched in 1990 as a new generation of standard expansion toolholders

            Continuously perfected for your requirements

            1991

            TENDO Platinum
            Over 30 years of experience.

            2007

            TENDO LSS
            Super-slim. High-precision. Optimized interfering contours.

            2008

            TENDO ES
            Zero interfering contours.

            2010

            TENDO E compact
            Up to 300% longer tool service life.

            2016

            TENDO Slim 4ax
            1:1 interchangeable with heat shrink toolholder

            2021

            iTENDO2
            Same shape, but with an intelligent real-time sensor system

            Satisfied customers drive us

            "The hydraulic expansion toolholders from SCHUNK are the right mounts for us because they decouple the vibrations. Compared to heat shrinking technology, using hydraulic expansion technology not only offered a better energy balance, but also better machining results."

            Lukas Betz (center), Managing Director, ROC
            "Every single measuring device that we machine here undergoes a hundred percent inspection. Because we are extremely strict about everything here, we are happy to now be able to continue working seamlessly with the new TENDO E compact. We can hereby be sure that everything is one thousand percent correct."

            Martin R?mer (center), Plant Manager, Lehren- und Me?ger?tewerk Schmalkalden
            "With TENDO Slim 4ax, it was possible to achieve significantly longer tool life and optimal surfaces, allowing us to completely eliminate a second finishing process that was previously necessary."

            Thomas Petermann, Production Manager, South Branch, Ingersoll Werkzeuge GmbH, Vaihingen-Horrheim
            TENDO-Classic sectional diagram

            1) Clamping screw

            The clamping screw is used to move the clamping piston. Clamp the clamping screw to dead stop using an Allen key. A torque wrench is not needed.

            2) Clamping piston

            The clamping piston compresses the hydraulic fluid into the oil chamber system.

            3) Expansion sleeve and oil chamber

            The expansion sleeve evenly expands against the tool shank. The tool shank is centered first and then clamped powerfully and uniformly across the entire surface during this clamping process. When the chamber system is filled with hydraulic fluid, it has a damping effect on the clamped tool. Wear on the cutting edge of the tool is minimized, service life is increased by up to 40%.

            4) Base body

            The machine-side interface is located on the base body.

            5) Length-setting screw

            For fast and easy tool-presetting.

            6) Tool

            The tool is centrically clamped to the middle axis – highest run-out and repeat accuracy of less than < 0.003 mm.

            7) Dirt groove

            The enormous clamping pressure of the hydraulic expansion toolholder creates a displacement of oil, grease, or lubricant residues into the groove, whereby the clamping surfaces stay dry.

            TENDO-Classic sectional diagram

            Modern hydraulic expansion toolholders are more sustainable

            Especially in this day and age, sustainability in the production process is becoming increasingly important. The focus is not only on saving energy. The economic efficiency of the means of production used and the retention of skilled workers in the company have also become elementary components.

            With hydraulic expansion technology from SCHUNK, you can contribute to more sustainable production. Due to the choice of many different TENDO models, conventional clamping devices can be easily replaced for almost all metal cutting tasks.

            Logo sustainability

            The reasons why hydraulic expansion toolholders are sustainable:

            Economical:

            • Significantly longer service life than shrink toolholders
            • Reprocessing possible by SCHUNK for a second life cycle
            • No material fatigue due to the shrinking process, thus consistent clamping quality
            • Efficient production process due to a fast tool change of maximum 2 minutes

            Resource saving:

            • No energy expenditure as with shrinking
            • Less power consumption and lower CO2 emissions

            Attractive:

            • Skilled workers like to work with modern work equipment
            • Safe clamping without risk of burns for employees
            • Easy handling and thus pleasant work

            Always the optimum tool holding system for your task

            Total tooling segmentation

            Intelligence

            • SCHUNK iTENDO2 for safe "closest-to-the-part" workpiece machining in the unmanned, automated production process with the necessary intelligence

            Find out more about iTENDO2

            Premium

            • SCHUNK TENDO Platinum is DIN-compliant in 29 interfaces and over 1,000 variants
            • SCHUNK TENDO Slim 4ax in DIN-standardised heat shrink contour

            Tech

            • SCHUNK TENDO LSS, ES, KSR, ZERO and Engineered are problem solvers for the most demanding tasks in every machining process

            Economy.

            • SCHUNK TENDO E compact for volume machining, drilling, reaming and threading

            Find out more about TENDO E compact

            Basic

            • Mechanical toolholders form the basis of the SCHUNK total tooling complete program

            Quickly find the matching toolholder

            Find the right hydraulic expansion toolholder from the SCHUNK portfolio with just a few clicks.

            Toolholder quickfinder
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