ER Collet Holder

An ER Collet Holder is a precision tool clamping system designed for CNC Machining, milling, drilling, and turning applications. It provides superior concentricity, stability, and clamping force to ensure accurate machining results.
Our range includes ER32 collet holder, ER20 collet holder, ER25 collet holder, ER16 collet holder, and ER11 collet holder, each engineered to meet diverse machining needs. We also supply ER32 tool holder, straight shank collet chuck, and ER32 collet block for versatile tooling setups.

With a full lineup of ER Collet chuck, collet holder, and CNC collet holder options, our products deliver exceptional accuracy and long service life for professional CNC Machining centers and tool systems.

Core Advantages

1. High Precision & Stability
   Each ER collet holder is ground with high concentricity—typically ≤0.005 mm—to guarantee excellent tool balance and minimal runout. This ensures superior machining accuracy and surface finish.

2. Strong Clamping Force
   The ER collet chuck holder provides uniform pressure distribution and a firm grip on the tool shank, preventing tool slippage during heavy cutting. It is suitable for both high-speed and heavy-duty applications.

3. Premium Material & Heat Treatment
   Made from alloy steel (20CrMnTi or SCM415) and heat-treated to HRC 56–60, our ER tool holders provide exceptional strength, rigidity, and wear resistance.

4. Versatile Compatibility
   Compatible with multiple tool systems including BT, CAT, HSK, and NT, our ER collet holders can be adapted for various CNC machines and milling centers.

5. Corrosion Resistance & Long Lifespan
   Nickel-plated or black oxide surfaces prevent rust and oxidation, extending tool holder life even in demanding shop environments.

Key Selling Points

• Precision-ground ER collet chuck system ensuring maximum stability.

• Compatible with various tool shank diameters (1mm to 20mm).

• Supports both standard and high-speed ER collets.

• Custom sizes and lengths available upon request.

• Perfect balance for high-speed spindle applications (>20,000 RPM).

Technical Specifications

Applications

• CNC Machining Centers – For high-precision milling, drilling, and engraving.

• Mold Manufacturing – Ensures accuracy in complex mold cavity machining.

• Aerospace & Automotive Industries – For tight tolerance part machining.

• General Metalworking – Ideal for tool grinding, lathe operations, and cutting applications.

Our ER collet holders and ER collet chucks are widely used in CNC milling centers, aerospace manufacturing, precision mold shops, and automotive part production lines.

Comparison Advantage

Compared to other tool holding systems, such as Weldon or hydraulic holders, the ER collet holder offers:

• Higher versatility – accepts a wide range of tool diameters.

• More cost-effective – ideal for general-purpose machining.

• Better tool balance – suitable for high-speed machining.

• Easier tool changeover – quick setup with collet nut system.

While hydraulic holders provide superior vibration damping, the ER collet chuck offers the best combination of affordability, flexibility, and precision, making it a universal choice in CNC workshops.

Maintenance & Installation Tips

• Always clean the taper hole, collet, and nut before installation.

• Use a calibrated torque wrench for tightening the ER chuck holder.

• Avoid overtightening, as it may damage the collet’s elasticity.

• Apply anti-rust oil to prevent corrosion during storage.

• Regularly check runout accuracy for optimal performance.

Why Choose Us

• Professional Manufacturing: Over 10 years of experience in CNC tool holder production.

• Strict Quality Control: 100% inspection before delivery, ensuring ≤0.005 mm runout.

• Wide Product Range: We produce ER11, ER16, ER20, ER25, and ER32 collet holders compatible with all CNC machines.

• OEM/ODM Support: Custom engraving, logo marking, and surface finishes available.

• Global Supply: Trusted by precision machining companies in 60+ countries.

FAQ

Q1: What is an ER Collet Holder used for?
A: It securely holds cutting tools in CNC machines, ensuring precision and stability during machining operations.

Q2: How do I choose between ER16, ER20, ER25, and ER32?
A: It depends on your tool diameter range and required clamping torque. ER11–ER16 are for small tools, ER20–ER32 for general milling and drilling.

Q3: Are your ER collet holders balanced for high-speed applications?
A: Yes, all our holders are dynamically balanced to G2.5 at 25,000 RPM.

Q4: Can you supply custom ER collet blocks or straight shank holders?
A: Yes, we offer ER32 collet blocks, straight shank collet chucks, and customized tool holders to meet specific needs.

Q5: Do you provide OEM laser marking with my brand name?
A: Absolutely. We support custom branding, laser logos, and private label packaging for distributors and resellers.