Introduction to ER collet:
Spring collet is the abbreviation of ER collet, which is a clamping accessory installed on the machine tool spindle to connect and lock the tool, and uses the displacement of the taper reducer to clamp the tool. In 1972, REGO-FIXAG invented the ER clamping system, which changed the tool clamping industry. And it became the DIN standard (DIN 6499) in 1993. To this day, ER spring collets are still widely used in various clamping systems.
ER collet can be divided into standard ER spring collets (ER standard), ER high-precision spring collets (ER-UP), ER mechanical spring collets (ER-DM), tapping spring collets (ER-GB), and tapping spring collets (PCM ET1). Product specifications range from ER 8 to ER 50, and clamping diameters range from 0.5 mm to 34 mm.
Elastic collet grade description:
■ Ordinary grade: less than or equal to 0.015mm
■ Grade A: less than or equal to 0.01mm
■ Grade UP: less than or equal to 0.005mm
Clamping range: generally from 0.5mm to 34mm in diameter
Common standard: DIN6499
Commonly used materials:
ER elastic collet has many material classifications, among which 65Mn (spring steel) has the most outstanding performance
Features：
1. Select high-quality spring steel
2. Large clamping force, wide clamping range, high precision
3. Widely used in boring, milling, drilling, tapping, grinding, engraving and other processing
Installation method of ER spring collet：
The spring collet tool holder uses the displacement of the tapered reducer to clamp the tool. It is usually used in the inner hole of the spindle. Next, IZID will teach you how to correctly install the spring collet according to your needs. The spring collet is a cylindrical fixture installed on the machine, which can be used to manufacture or inspect the fixture of the part. Before installing the spring collet, first install the spring collet into the nut, then lock the end with the spring collet on the nut and gently screw it on the spindle. Remember to clean the threaded part of the collet and the locking nut. During the installation of the collet, the collet and the nut should be tilted at a certain angle, and then gently placed in the slot.