GBP 57 ISO G 2.5 7388-1 25000 HSC min-1 Precision ER collet chuck − (formerly DIN 69871) ■ Taper ground internally and externally with RFID/Balluffchip bore. ■ Concentricity and repetition accuracy 3 μm at 3×D, maximum 50 mm when using a HP precision collet. ■ HDC = Heavy Duty Chuck, a mount specially designed for rough machining. A reinforced chuck body ping ensures better stability and plenty of radial stiffness. Taper ground internally and externally. clam o r d er CP ately e r Ball-bearing clamping nut with trapezoidal-shaped fine thread for optimum tightening torques and Pleas nuts sepa clamping forces, reduces vibrations that occur. ■ Very high clamping forces due to the collet fully seated in the chuck and coated clamping nut. ■ Vibration damping due to the element collet and mass of the chuck. ■ Alternatively for CENTRO P -> without seals, with ER clamping nut CP No. 309655 or sealed system with ER clamping nut CP for HP sealing rings No. 309665 in conjunction with HP sealing rings No. 309666 − 309668 (for internal coolant supply or as a dirt trap). Mini – size 11M / 16M Advantage: Patented optimum seating of the collet, double guides, trapezoidal thread and low-friction (extremely slim design!). coated clamping nut amalgamate when clamped into a sturdy unit, thus ensuring a very high degree of rigidity and precision. Application: For high precision clamping of tools with plain shank. HDC especially well-suited for roughing (including TPC milling) and finishing operations and machining of high-tensile or tough materials. Supplied with: 30 0686–0689 – Without clamping nut. 30 0694/0697 – Supplied with ball-bearing clamping nut. Optional extras: Pull studs (PS) No. 308600 – 308806, Tapered – size 16C PS wrenches No. 308820 – 308835, precision ER collets for HP No. 309368 - 309381 and for taps No. 309402 − 309419 (not for Holex). ER clamping nuts CP No. 309655; 309665, ER clamping nut HDC No. 309657, HP sealing rings No. 309666 − 309668, CP roller bearing wrench No. 309754; 309756, HDC roller bearing wrench No. 309745; 309756. Standard – sizes 16, 25 and 32. Note: Clamps only nominal ⌀ up to shank ⌀ tolerance h10. ■  ■ Use in combination with Fahrion collets. 30 0694/0697 – ■ Not compatible with CP clamping nut. ut ing n lamp HDC cincluded 30 0694_32AD ut ing n lamp HDC cincluded 30 0697_32AD A D for ER collets 32AD SK 40 30 0694 eShop 33F Precision ER collet chuck A = 65 HDC SK 50 30 0697 eShop 33F A = 100 Clamping range mm 2 – 20 ⌀ D mm 53 Type CP for ER 11M 16M 16C 16 16AD 25 25AD 32 32AD 40AD 30 30 0686 SK 40 short – – – – – eShop – eShop – – 33F SK 40 30 0687 eShop eShop – eShop eShop eShop eShop eShop eShop eShop 33F Precision ER collet chuck A = 70 CENTRO P SK 40 30 0688 eShop eShop eShop eShop eShop eShop eShop eShop eShop – 33F A = 100 SK 40 30 0689 eShop eShop (eShop) eShop – (eShop) – eShop – – 33F A = 160 Clamping range mm 1–7 1 – 10 1 – 10 1 – 10 1 – 10 2 – 16 2 – 16 2 – 20 2 – 20 3 – 26 Dimension A (30 0686) mm – – – – – 45 – 50 – – ⌀ D mm 16 22 24 30 30 40 40 50 50 63 968