
GBP 57 G 2.5 ≤3µm JIS ISO Form 25000 HSC HPC B6339 7388-2 ADB min-1 Hydraulic chuck − version HT (High Torque) − JIS B6339 (MAS-BT) ■ Very high overall stiffness due to optimised design. ■ Axial length adjustment, adjustment travel 10 mm. Advantage: ■ Maximum transmissible torque 550 Nm, version HT (High Torque), for high process reliability. ■ Ideal damping characteristics, resulting in optimum surface finishes, increased tool life and spindle protection. 30 3450 ■ Temperature resistance up to 120 °C. Application: Especially for heavy-duty milling. Supplied with: Hexagon cross-bar wrench. Optional extras: Pull studs (PS) No. 308760 − 308802. Note: Caution in the case of extra-long tools and TPC machining. 30 3451 Clamping range ⌀ D1 mm 12 20 32 30 3450 HT chuck BT 40 short eShop eShop – 31H HT chuck 30 3451 BT 40 short – eShop – 31H with cooling channel bores 30 3459 BT 40 short – eShop – 32A HT chuck 30 3452 BT 50 short – eShop eShop 30 3459 31H Dimension A (30 3450, 30 3451, 30 3459) mm 58 72.5 – Dimension A (30 3452) mm – 83.5 90 ⌀ D (30 3450, 30 3451, 30 3452) mm 42 49 72 ⌀ D (30 3459) mm – 49.25 – L1 (30 3450, 30 3459) mm 31 45 – L1 (30 3451, 30 3452) mm – 45.5 52 302140; 302135 302160; 302155; suitable reducing adapter 302150; 302165 302180; 302175 G 2.5 ≤3µm ISO JIS Form 25000 HSC HPC 7388-2 B6339 ADB min-1 GARANT Master Chuck hydraulic chuck performance – JIS B6339 (MAS-BT) ■ Particularly suitable for highly dynamic milling applications. ■ Optimised outer contour using FEM (finite element method) –> robustness thanks to max. rigidity, longer tool e, al rat life, higher metal removal rate, suitable for all machining strategies. t a l r emovision! me m prec ■ Axial length adjustment, adjustment travel 10 mm. mum u Maxi th maxim ■ Reducing adapters can be used. w i ■ Resistant to temperatures up to 170°C for 4 hours. ■ Allows for up to 10x more clamping operations compared with a standard hydraulic chuck. ■ Very low tightening torque of the clamping screw – easy handling. ■ Patented new hydraulic clamping system – reliable, durable premium concentricity. Application: Universally designed for roughing and finishing operations. For clamping tools with shank tolerance h6. Optional extras: Pull studs (AB) No. 308600 − 308802, AB pull stud wrenches No. 308820 / 308835, Reducing sleeves No. 302135 − 302187. 30 3480 A L V L 30 D D D Clamping ⌀D1 mm 6 8 10 12 16 20 Hydraulic chuck performance 30 3480 BT 40 short eShop eShop eShop eShop eShop eShop 31A Master Chuck, form ADB Dimension A mm 58 58 58 58 72.5 72.5 ⌀ D2 mm 26 28 30 32 38 38 ⌀ D mm 42 42 42 49 49 49 998