The ERC11HP.D high precision ER collets are designed for extremely accurate clamping of cylindrical tools in ER collet chucks according to DIN ISO 15488 (DIN 6499) standards. These collets are developed for high precision machining applications on CNC machining centers, high-speed spindles and machine tools used for the production of complex mechanical components.

The collet geometry incorporates 12 radial elastic slots, allowing uniform elastic deformation during clamping and ensuring excellent concentricity repeatability. When used correctly with nominal tool diameters and ER-standard collet chucks, the system guarantees runout accuracy up to 0.005 mm, making these collets suitable for precision milling, micro-drilling and high-accuracy machining processes.

The ER11HP series features a 0.5 mm diameter progression, enabling the operator to select the closest possible clamping diameter to the tool size. This improves clamping force distribution, reduces vibration and increases machining stability.

All functional surfaces are precision ground with a surface finish of Rz 1.6, ensuring optimal contact between the collet, the tool and the collet chuck. This surface quality contributes to maintaining stability even at high spindle speeds.

The combination of high geometric precision, controlled elasticity and precision surface finishing makes these collets ideal for applications requiring high dimensional accuracy, stable tool holding and vibration reduction.

Typical industrial applications include automotive manufacturing, aerospace machining, mold making, precision mechanical engineering and high-accuracy production environments where reliable tool clamping is essential.