Description
Compact BT40 Hydraulic Expansion Holder (Dia 12 x 58 mm)
High-rigidity short-projection hydraulic chuck designed for BT40 spindle CNC machines. The short overhang provides exceptional radial rigidity and minimizes runout deflection during machining.
- Taper Standard: BT40 (MAS 403 / JIS B 6339)
- Clamping Bore Diameter: 12 mm
- Projection Length (A-dimension): 58 mm
- Runout Precision: < 0.003 mm at 3xD
- Balancing Quality: G2.5 / 25,000 RPM
- Actuation: Rapid piston actuation via hex screw
- Application: High-precision milling, tight cavity machining, reaming