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CNC ER COLLETS

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MOQ : 1 , , Piece

CNC ER COLLETS Specification

Cutting Capacity
1 mm 26 mm clamping range (varies by model)

Coating Type
Uncoated

Hardness
58 - 62 HRC

Machine Type
CNC Lathe / CNC Milling Machine / Machining Center

Features
High Gripping Force, Excellent Concentricity, Wear Resistant, Durable, Precision Ground, Wide Clamping Range

Cutting Accuracy
0.005 mm 0.015 mm

Length
34 mm 60 mm (varies by collet size)

Material
Alloy Steel / Spring Steel

Tool Type
CNC Collet Chuck

Coating
No Coating

Operate Method
Manual with tightening/loosening nut

Operation Type
Manual and Semi-Automatic

Cutting Force
High clamping force with stable torque transfer

Cutting Speed
Depends on machine and tool, typically up to 12000 RPM

Shape
Round

Diameter
1 mm 26 mm (varies by size of collet)

Maximum Torque
Up to 150 Nm depending on size

Processing Type
CNC Turning / Milling

Packing Type
Plastic individual case

Life Span
Extensive, depending on usage

Application
Tool holding for milling, drilling, reaming, tapping

Surface Finish
Mirror finished

Thread Type
Internally threaded to match ER nuts

Temperature Resistance
Up to 350C

Series Available
ER8, ER11, ER16, ER20, ER25, ER32, ER40, ER50

Compatible Tool Shank
Metric and imperial sizes

Lubrication
Oil-coated for rust prevention

Runout Tolerance
0.008mm

CNC ER COLLETS Trade Information

Minimum Order Quantity
1 , , Piece

Supply Ability
10000 Pieces Per Week

Delivery Time
1-7 Days

About CNC ER COLLETS

If your CNC tooling requirements include an ER collet, we have collet sizes ER11 to ER 50 for shank sizes 1/16 to 1inch and metric sizes from 1mm to 25mm.

Also we have Nuts, Spanners, Adaptors, and a COMPLETE RANGE in CNC Toolings.

Wide Series and Versatile Application

Our CNC ER Collets come in a comprehensive range, from ER8 through ER50. This variety accommodates different tool shank diameters, making them suitable for multiple machining applications such as drilling, milling, tapping, and reaming. Their compatibility with both metric and imperial sizes offers flexibility for various industry requirements.

Exceptional Precision and Performance

Engineered for tight tolerances, these collets deliver a runout of just 0.008 mm and cutting accuracy within 0.005 mm to 0.015 mm. The mirror finish and precision ground surfaces ensure smooth tool holding, while high gripping force and stable torque transfer support consistent, precise machining operations.

Durability and Reliable Protection

Each collet is built from high-quality alloy or spring steel with a hardness rating between 58-62 HRC, ensuring wear resistance and longevity. Oil coating guards against rust while the uncoated surface maintains exacting tolerances. They withstand temperatures up to 350C, supporting demanding machining environments.

FAQs of CNC ER COLLETS:

Q: How do I select the correct ER collet size for my tool shank?

A: To choose the right ER collet, match the tool shank diameter (in metric or imperial units) with the corresponding clamping range of the ER series (ER8ER50). The correct fit ensures optimal clamping force and concentricity during machining operations.

Q: What is the process for installing and removing CNC ER collets?

A: Installation involves inserting the collet into the ER nut, then fitting your tool and tightening the assembly onto the collet chuck manually. To remove, simply loosen the nut, which releases the tool and collet. Always ensure proper alignment and torque for safe operation.

Q: When should CNC ER collets be replaced?

A: ER collets should be replaced when they show visible signs of wear, reduced clamping force, surface damage, or difficulty achieving specified concentricity or runout tolerance. Routine inspection ensures collets maintain their precision and performance.

Q: Where are CNC ER collets typically used?

A: These collets are widely used in CNC lathes, CNC milling machines, and machining centers across manufacturing facilities for tool holding in processes like drilling, reaming, tapping, and milling. Their broad clamping range and compatibility make them suitable for diverse industrial environments.

Q: What benefits do mirror-finished ER collets offer?

A: Mirror-finished surfaces on ER collets provide reduced friction, improved tool holding stability, and easier cleaning. This finish contributes to both the longevity of the collet and the precision of machining operations.

Q: How does oil coating benefit CNC ER collets?

A: Oil coating protects the collets from corrosion and rust during storage and usage, thereby extending their lifespan without compromising precision or performance. Regular wiping and oiling are recommended for ongoing rust prevention.

Q: Can CNC ER collets be used with both metric and imperial-sized tools?

A: Yes, the design of CNC ER collets allows for secure clamping of both metric and imperial tool shanks, offering versatility for different tooling systems and international standards.

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