GAETANO CAPORALI ERC40RF ER40 rubber sealed collets with neoprene inserts, DIN ISO 15488 (DIN 6499), nominal diameter of your choice
(Incl. Tax: €41.15)
The ER40 RF rubber sealed collets compliant with DIN ISO 15488 (DIN 6499) are designed for tools with through-coolant supply. Integrated neoprene seals ensure reliable coolant containment up to 25 bar, directing the coolant through the internal channels of the cutting tool directly to the machining area. The 4+4 slot design provides excellent rigidity and an average runout accuracy of 0.008 mm, ensuring stable tool clamping and high machining precision. Ideal for CNC machining centers, milling and drilling applications in precision engineering and automotive industries.
The ER40 rubber sealed collets (RF) compliant with DIN ISO 15488 (DIN 6499) are designed for secure tool clamping and effective coolant sealing in ER toolholding systems equipped with internal coolant supply. These collets are specifically engineered for high-precision machining applications on CNC machining centers, milling machines and industrial lathes where reliable tool clamping and efficient coolant delivery are essential.
The collet structure features a 4+4 slot design, ensuring optimal clamping force distribution and improved rigidity during machining operations. This design contributes to stable tool positioning and provides an average runout accuracy of 0.008 mm, ensuring excellent dimensional accuracy and surface finish in precision machining processes.
The key feature of the RF (Rubber Sealed) design is the presence of neoprene sealing inserts integrated in the 30° internal taper. These inserts create an effective sealing system that prevents coolant leakage inside the toolholder while directing the coolant flow through the tool channels.
During machining, the coolant flows through the internal lubrication holes of the cutting tool, reaching the cutting edges directly. This improves cooling efficiency, enhances chip evacuation and reduces thermal stress on the tool, resulting in longer tool life and improved process reliability.
These ER40 RF collets are designed to withstand a maximum coolant pressure of 25 bar, making them suitable for demanding machining environments where high-pressure coolant systems are used. However, it is recommended to set the operating pressure according to the tool diameter and machining conditions.
The collets provide a clamping range of −0.1 mm, ensuring precise clamping of cylindrical shank tools with a nominal diameter corresponding to the collet size. Proper coolant sealing is guaranteed only when the tool shank diameter matches the nominal diameter of the collet and the tool is inserted along the full gripping length.
ER40 sealed collets are widely used in milling, drilling and high-performance machining operations, particularly in industries where efficient coolant management and high clamping accuracy are critical.
These collets represent an optimal solution for improving machining stability, enhancing coolant delivery efficiency and increasing productivity in modern CNC machining environments.
Technical data ER40 RF sealed collet – DIN ISO 15488 (DIN 6499)
| Parameter | Value |
|---|---|
| Collet type | ER40 RF |
| Standard | DIN ISO 15488 (DIN 6499) |
| Diameter A | 40 mm |
| Diameter B | 41 mm |
| Cone angle α | 8° |
| Length L | 46 mm |
| Dimension H | 15 mm |
| Tool diameter D | 3 – 30 mm |
| Collet diameter range | 4 – 26 mm |
| Diameter progression | 0.5 mm |
| Clamping range | 0.1 mm |
| Average runout accuracy | 0.008 mm |
| Maximum coolant pressure | 25 bar |
| Collet slots | 4 + 4 |
| Sealing system | Neoprene inserts in 30° cone |
- Brand:
- GAETANO CAPORALI
- Typology:
- Solid sealed collets
- Size:
- ER40 - 472E
