HSK collet chuck HSKA-ER

HSK-Ashrink fitER

Overview
The HSK series is the standardized tool holder interface for metal machining. Clamping uses both taper and face contact to increase rigidity. Centering and axial locating provide excellent repeatability and positioning accuracy. Available variants include HSK-A and HSK-E holders, manufactured to tight dimensional tolerances.

Power & speed in control
Designed for high-torque and high-speed spindle applications, with a compact, lightweight form factor suited to demanding machining processes.

Key features

• Highest rigidity due to combined taper and collar contact
• Compact and lightweight design for dynamic performance
• Suitable for high-torque, high-speed machining
• Precise centering and excellent repetitive accuracy

Tool holder table
HSK-A Collet Chuck | HSK-A40 | ER 16 - ER 32 | Cutter Ø 1.0 - 20.0 mm | Combined runout ≤ 5 µm | Dim. precision ≤ 2 µm; Cylindricity ≤ 1 µm; wear-resistant stainless steel options
HSK-A Collet Chuck | HSK-A50 | ER 16 - ER 32 | Cutter Ø 2.0 - 20.0 mm | Combined runout ≤ 5 µm | Dim. precision ≤ 2 µm; Cylindricity ≤ 1 µm
HSK-A Collet Chuck | HSK-A63 | ER 25 - ER 40 | Cutter Ø 2.0 - 30.0 mm | Combined runout ≤ 5 µm | Dim. precision ≤ 2 µm; Cylindricity ≤ 1 µm
HSK-E Collet Chuck | HSK-E25 | ER 11 - ER 16 | Cutter Ø 1.0 - 10.0 mm | Combined runout ≤ 5 µm | Dim. precision ≤ 2 µm
HSK-E Collet Chuck | HSK-E50 | ER 16 - ER 32 | Cutter Ø 1.0 - 20.0 mm | Combined runout ≤ 5 µm | Dim. precision ≤ 2 µm
HSK-A Shrink Fit Chuck | HSK-A40 | — | Cutter Ø 4.0 - 12.0 mm | Combined runout ≤ 2 µm | Shrink-fit concept; high runout precision
HSK-A Shrink Fit Chuck | HSK-A63 | — | Cutter Ø 4.0 - 32.0 mm | Combined runout ≤ 2 µm | Shrink-fit concept; high runout precision
HSK-E Shrink Fit Chuck | HSK-E40 | — | Cutter Ø 4.0 - 12.0 mm | Combined runout ≤ 2 µm | Shrink-fit concept; high runout precision

Characteristics / technical specifications

• Series: HSK (HSK-A, HSK-E)
• Main clamping method: taper and face contact for increased rigidity
• Centering and axial fixing for repeatability and precision
• Supported collet types: ER, SK, KR (ranges vary by holder)
• Cutter diameter ranges: 1.0 mm up to 32.0 mm depending on holder and collet
• Combined runout accuracy at 4D: typically ≤ 5 µm for collet chucks
• Shrink-fit chucks combined runout: typically ≤ 2 µm
• Material/finish options: wear-resistant stainless steel available
• Dimensional precision: ≤ 2 µm; Cylindricity: ≤ 1 µm (where specified)