Catalog excerpts
motor spindle technology GRINDING MOTOR SPINDLES extreme rigidity high quality motors high speed www.tdmspindles.com A world leader in the design, development and manufacturing of high speed precision motor spindles
Open the catalog to page 1GRINDING SPINDLES High frequency grinding spindles body diameter D Motor spindles for seat grinding in deep positions designation
Open the catalog to page 2SPINDLE SELECTION TDM SAmotor spindle technologyOptimal conditionsAdmissible cutting speed E a. Vt = d ‘ n ‘ n_= m/sec Grinding wheel diameter (d) Corindon 35-60 m/sec CBN 45-120 m/sec cn mm Cutting speed (Vt) Calculation for critical speed and rigiditymotor spindle with grinding wheel extension Critical speedExample of critical speed of the extensions on the base of length and diameterLength of the extension The dimensions of the rotating parts of the motor spindles TDM are calculated to obtain a lower ratio at 0.5 between shaft rotation speed (Vr) and the critical speed (Vcr). Example
Open the catalog to page 3TDM SAmotor spindle technologyTDM Spindle nose designation Options Collet taper (a) Clambing nut thread (M) Tool diameter (D) Automatic tool change solutions Application for medium and low speed Holder with collet Option with angle connections Standard straight c°nnecti°ns Sizes available on request A, B, d, L, k, a, b, D, C, M, W Grinding quills
Open the catalog to page 4motor spindle technology Special Features Motor cooling Front bearings cooling Rear bearings cooling Coolant supply Optional Sensor for shaft expansion Oil drain Springs preload Wide range of variations and flexibility to ensure customised variants Typical applications
Open the catalog to page 5GRINDING SPINDLE TDM SAmotor spindle technologyBelt driven spindles body diam. Grinding wheel flanges spindles type Collets system spindles type
Open the catalog to page 6QUALITY High frequency spindles for manual and automatic tool change Size Gauging distance kg-ek Gauging distance: 5 x face hole diameter, max 100 mm Radial rigidity Axial rigidity Measured at not rotating shaft Test Spindle Before delivery, every TDM spindles are completely tested and certificated. Test certificate This document supplied with every TDM spindles contains the measured values of: geometry tolerances, different electric measurement, vibration values, average temperatures. Other measurement conditions and limiting values differing from the TDM test standard can be accommodated....
Open the catalog to page 7Device for Grinding spindles Type of Frequency converter Cooling system Complete support units - Cooling system - Frequency converter - Lubrication unit air + oil Basel Zurich motor spindle technology Via Rompada 38 - 6987 Caslano - Lugano - Switzerland
Open the catalog to page 8All TDM SA catalogs and technical brochures
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