ER40 Spring Collet for Extended Range Clamping, 8-34mm Range spring collets
ER40 spring collets are a type of collet used in machining operations to hold and secure cutting tools such as drills, end mills, and reamers. They are part of the ER collet system, which is a widely used standard for toolholding in CNC milling machines.
ER40 spring collets have a clamping range of 26mm to 34mm, which means they can securely hold cutting tools with shank diameters within that range. The "ER" in the name stands for "Extended Range," indiCATEEing that these collets have a larger clamping range compared to other ER collet sizes.
The spring collet design allows for quick and easy tool changes, as the collet can be opened and closed by compressing or releasing the internal spring. This ensures a tight and secure grip on the tool, minimizing tool runout and improving machining accuracy.
ER40 spring collets are commonly used in heavy-duty milling appliCATEEions that require larger cutting tools and higher cutting forces. They are compatible with ER40 collet chucks, which are used to hold the collets in place within the milling machine spindle.
Overall, ER40 spring collets are a reliable and versatile toolholding solution for CNC milling operations, providing precision and stability in tool clamping.
| Model | d | D | D1 | D2 | L | Collopsible
Capacity |
| ER8 | 1.0-5.0 | 8 | 8.45 | 6.5 | 13.5 | 0.50 |
| ER11 | 1.0-7.0 | 11 | 11.5 | 9.5 | 18 | 0.50 |
| ER16 | 1.0-2.5 | 16 | 17 | 13.8 | 27.5 | 0.50 |
| ER16 | 2.5-10.0 | 16 | 17 | 13.8 | 27.5 | 1.00 |
| ER20 | 1.0-2.5 | 20 | 21 | 17.4 | 31.5 | 0.50 |
| ER20 | 2.5-13.0 | 20 | 21 | 17.4 | 31.5 | 1.00 |
| ER25 | 1.0-2.5 | 25 | 26 | 22 | 34 | 0.50 |
| ER25 | 2.5-16.0 | 25 | 26 | 22 | 34 | 1.00 |
| ER32 | 2.0-2.5 | 32 | 33 | 29.2 | 40 | 0.50 |
| ER32 | 2.5-20.0 | 32 | 33 | 29.2 | 40 | 1.00 |
| ER40 | 3.0-26.0 | 40 | 41 | 36.2 | 46 | 1.00 |
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| Model | d | D | D1 | D2 | L | L1 | L2 | L3 |
| ER11 | 1/32-17/64 | 11 | 11.5 | 9.5 | 18 | 3.80 | 2.5 | 2 |
| ER16 | 1/32-3/8 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4 | 2.7 |
| ER20 | 1/32-33/64 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 |
| ER25 | 5/64-5/8 | 25 | 26 | 22 | 34 | 6.66 | 5 | 3.1 |
| ER32 | 1/16-25/32 | 32 | 33 | 29.2 | 40 | 7.16 | 5.5 | 3.6 |
| ER40 | 1/8-1″ | 40 | 41 | 36.2 | 46 | 7.66 | 7 | 4.1 |
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DIN6499B ER Collet,High precision Spring ER collet ER11,er16,er25,er32,er40,ER Collet Unique design is mechanically sealed by virtue of the rear slots terminating prior to the annular groove, completely blocking the path of coolant flow to the front of the collet.ER Collet When using thru-coolant cutting tools, these collets ensure 100% coolant delivery to the tip of the cutting tool.ER Collet Range of use. boring, milling, drilling, tapping, engraving, CNC, spindle machine, and other processing.
High precision ER Spring collet ER11,er16,er25,er32,er40,Applied for a variety of processing, including drilling, milling, tapping and grind
1. 65Mn ER Collet ; HRC:44-48
2. spring er collet Precision below 0.008 or 0.015mm for your choice.
3. Complete models, with a maximum outer diameter of 12-41mm, and various specifiCATEEions available for selection
4. Not easily damaged, stable performance, high accuracy, and more stable clamping force within the entire processing speed range
5. Strong versatility, suitable for small batches and multiple processing tasks, saving time, and easy operation. The selected steel cylinder is crafted from selected steel, with high hardness
6. Durable, high accuracy, strong wear resistance, and durable use
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CNC Machine HRC50 ER Collet Spring ER40 Collet 8mm-34mm Range Images
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