Режущие и зажимные инструменты Hoffmann Group 2026 - страница 991

GBP 57 G 2.5 ≤3µm ISO JIS Form 25000 HSC HPC 7388-2 B6339 ADB min-1 HiRunER Precision ER collet chuck − JIS B6339 (MAS-BT) External and internal tapers are ground. All shanks are hard turned for smooth running. Including RFID / Balluffchip bore, high-performance clamping nut (up to 25000 rpm). Advantage: ■ Excellent concentricity in the system HiRunER → the collet Standard ER chuck → Collets (chuck + collet + clamping nut), is fully seated in the chuck are not inserted 100% into the 3µm radial run-out with a 2µm collet, → higher retention forces! chuck. 6µm radial run-out with a 5µm collet. → better concentricity! ■ Extremely strong holding force (up to factor 2 better than the standard ER chuck). ■ Vibration reduction effect due to 2-part clamping nut. Application: For clamping tools with plain shank in collets to DIN 6499 − Form A and B. Supplied with: Precision clamping nut. Slide- Optional extras: Pull studs (PS) No. 308760 – 308802, optimised PS wrenches No. 308820 – 308835, surface of ER chuck keys No. 309757, 309758 (for 11M and 16M); the ER collets Fahrion No. 308901 – 309434. clamping ​ 30 2844 ER collets No. 308901 − 309432, nut. hook spanner 628400 or torque wrench 309749 or 628520. Ball-bearing clamping nut higher tightening torques. Note: ■ Clamps only nominal ⌀ up to shank ⌀ tolerance h 10. ■ Do not use the clamping nut in combination with a sealing washer. ■ Use it in only combination with Fahrion collets. ■ The blue design ring must be removed for Fahrion HP 2µm ER collets. 30 2844 for ER collet size 11M 16M 16 20 25 32 40 Mini − size 11M/ 16M (extremely slim design). BT 30 30 2839 eShop eShop eShop – eShop – – 31A A = 60 HiRunER precision BT 40 30 2843 – – eShop eShop eShop eShop eShop 31A 300 ER collet chuck A = 70 Standard BT 40 30 2844 eShop eShop – – – – – HiRunER 31A A = 100 100 Clamping range mm 1–7 1 – 10 0.5 – 10 1 – 13 1 – 16 2 – 20 3 – 26 50 ⌀ D mm 16 24 34 38 44 52 62 309618 309618 ER16 ER32 Spare ER clamping nut – – – – – 11M 16M Spare ER clamping nut No. 309617 – – 16 20 25 32 40 JIS ISO Form B6339 7388-2 A Boring bar blanks for making special tools − JIS B6339 (MAS-BT) Taper with collar, hardened and ground. Soft shank for further machining. Optional extras: Pull studs (PS) No. 308760 − 308802. ​ 30 2889 A Dimension A mm 250 315 30 2889 BT 40 eShop – 32A 32A Boring bar blank Form A 30 2891 BT 50 – eShop D ⌀ D mm 63 97 HSC DIN JIS DIN 69871 B6339 69893 High-speed spindles Air-powered high-speed spindle, constant speed under load 25,000 − 65,000 rpm depending on the version. Power up to 1kW. Application: High-speed spindles allow higher cutting speeds and feed rates. They allow above all the use of tools with small diameters (6 mm). Supplied with: High-speed spindle, collet, collet clamping nut, wrench, sealing plug, air filter, connection hose. Optional extras: Tool-change turret for automatic tool-change. Required only for external air supply - available on request. Note: Use clean dry compressed air at approx. 6.2 bar. Further spindles available on request: all commonly-used shank versions, different performance classes and speeds. 30 Speed min-1 50000 High-speed spindle type 625 BT 40 35 8835 eShop 33I compact Type 625 ⌀ D mm 57.15 ​ 35 8835 L mm 22 A mm 173 991