CNC Milling Tool Holder

About the product

The milling tool holder is an important component used to fix and replace milling tools in CNC machine tools. It plays a vital role in improving machining efficiency and ensuring machining accuracy.

1. Functions and advantages:

(1) The milling tool holder allows for quick tool replacement, significantly reducing machine downtime and improving production efficiency.

(2) It ensures the precise positioning of the tool during machining and maintains the machining accuracy of the workpiece.

(3) Modern milling tool holder designs are compatible with a variety of tools, allowing a single device to complete a variety of machining tasks.

(4) High-quality milling tool holders have a sturdy structure and can withstand long-term high-intensity work, reducing maintenance requirements.

Material & Construction

• Body Material: Primarily crafted from high-strength alloy steel (42CrMo or 40CrNiMoA) with heat treatment to 38–45 HRC. This ensures rigidity to resist deflection under heavy cutting forces (up to 8,000 N) and durability against long-term vibration.

• Clamping Components: Hardened steel (58–62 HRC) for collets, screws, and locking mechanisms, maintaining secure tool retention even after 5,000+ tool changes.

• Surface & Interface Treatments:

• Black Oxide Coating: Enhances corrosion resistance for use in coolant-rich environments (e.g., automotive machining).

• Precision Ground Interfaces: HSK, CAT, BT, or ISO interfaces are ground to ±0.001mm tolerance, ensuring seamless spindle connection and minimal runout.

• Balancing Grades: Most models meet ISO 1940-1 G2.5 balancing standards, supporting high spindle speeds (up to 20,000 RPM) without vibration.

2. Technical parameters:

(1) Milling speed (V) refers to the circumferential speed of the milling cutter when it rotates, in m/min, and the calculation formula is \( V = \frac{\pi DN}{1000} \), where \( D \) is the milling cutter diameter (mm) and \( N \) is the spindle (milling cutter) speed (r/min).

(2) The spindle speed range is a key parameter that determines the processing speed that the milling tool holder can adapt to, usually expressed in revolutions per minute (rpm).

Key Features

1. Rapid, Repeatable Tool Changes
   Equipped with standardized interfaces (HSK-A/B, CAT40/50, BT30/40) and quick-lock mechanisms (e.g., hydraulic or mechanical clamping), tool swaps take 10–30 seconds—cutting downtime by 80% vs. manual holders. Repeatability is ±0.002mm, eliminating the need for re-calibrating offsets between changes.
2. Ultra-Low Runout for Precision
   Critical surfaces (tool taper, collet seat) are precision-machined to ensure runout ≤0.003mm at the tool tip. This stability guarantees consistent cutting depths and surface finishes (Ra ≤ 1.6μm), essential for high-precision tasks like contour milling or micro-slotting.
3. Broad Tool Compatibility
   Accommodates diverse cutting tools: end mills (flat, ball-nose), face mills, drills, reamers, and taps (shank sizes 3mm–25mm). A single holder can switch between tools for multi-operation jobs (e.g., milling → drilling → chamfering), reducing holder inventory by 60%.
4. High-Speed & Heavy-Duty Versatility

• High-Speed Models: HSK-E/F interfaces support spindle speeds up to 40,000 RPM for light-duty precision work (e.g., electronics component machining).

• Heavy-Duty Models: CAT50/BT50 holders handle deep cuts and high feed rates (0.3–0.8 mm/tooth) for large-part machining (e.g., industrial gear blanks).

3. Application scenarios:

Milling tool holders are widely used in the machining industry, especially in the fields of mold manufacturing and the manufacture of complex contour housings. It plays an important role in specific machining operations such as T-slot milling, forming milling and thread milling.

The milling tool holder is a key component to improve the processing capacity and efficiency of CNC machine tools. Choosing a suitable milling tool holder is crucial to ensuring processing quality and production efficiency.

Applications

• Target Operations:

• Milling: Face milling, side milling, contour milling, slotting, and pocketing.

• Combined Tasks: Drilling, reaming, and tapping (when paired with compatible tools).

• Materials Handled: Carbon steel, alloy steel, stainless steel, aluminum, cast iron, and composites (e.g., carbon fiber).

• Key Industries:

• Automotive: Machining engine blocks, transmission cases, and chassis components.

• Aerospace: Precision milling of titanium or aluminum aircraft parts (e.g., wing spars).

• Electronics: Micro-milling of smartphone frames or PCB heat sinks.

• Mold & Die: Roughing and finishing of injection mold cavities.

  
  

Compatible Machines

• CNC Milling Machines: Fanuc Robodrill, Haas VF-series, Mazak VTC, and DMG MORI DMC.

• Vertical Machining Centers (VMCs): Ideal for small-to-medium parts; paired with HSK/BT interfaces.

• Horizontal Machining Centers (HMCs): Used for large-part production; compatible with CAT/HSK heavy-duty holders.

• High-Speed Machining Centers: Supports spindle speeds up to 40,000 RPM (HSK-E/F holders) for precision electronics work.

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Performance & Lifespan

• Recommended Operating Parameters:

• Spindle Speed: 1,000–40,000 RPM (varies by interface and balancing grade).

• Maximum Torque: 50–500 N·m (depending on holder size; BT50/CAT50 handle higher torque).

• Service Life:

• Alloy steel bodies: 7–10 years of daily use (8–12 hours/day) in standard conditions.

• Clamping components: 3–5 years before replacement (collets/screws wear faster than bodies).

• Corrosion-resistant coatings extend life by 2–3 years in wet machining environments.

User Testimonial

Sarah Chen, production supervisor at Precision Mold Tech, says: “Our HSK63 milling tool holders cut setup time in half—we now swap end mills and face mills in 20 seconds, no re-calibration needed. The runout is so low, our mold cavity finishes went from Ra 3.2μm to Ra 1.2μm, eliminating polishing. Even after 3 years of daily use, the holders still hold tolerance like new. They’re the backbone of our high-precision production.”

Summary

About Our Company

Jinan Xinxin Trading Co., Ltd. is a company specializing in a full range of turning tools, milling tools, holemaking tools, carbide cutting tools, machine tool accessories and

other products. At the same time, we accept non-standard product customization and provide perfect tooling solutions for the machining and manufacturing industry. 

After years of development, our company firmly believe in the concept of integrity-based, with high-quality service so that the company's products are exported to

 Europe, the Middle East, South America, Southeast Asia throughout the world's more than 40 industrialized countries and regions, won the majority of domestic

 and foreign customers to support and trust.

Jinan Xinxin Trading Co., Ltd. was founded in 2012, is an excellent comprehensive imported CNC cutting tools agents in Shandong, the company firmly believe in 

the concept of good faith, with high quality and attentive service. The company believes in the concept of good faith, with high quality and attentive service. For

 the various machining enterprises to supply the world's famous brands of imported CNC cutting tools, machining center tools.

Company Brands

Our company brand IRONROOT series products, with excellent quality and perfect service, strive to reduce the cost of using tools for you.

Main products

Our company, as an important link in the machining field, is following and driving its whole system to run. Our distribution of products has become increasingly systematized, mainly including: Sandvik Coromant sandvikcoromant, Seco, Walter, Kennametal Group Kennametal, Mitsubishi MITSUBISHI, Sumitomo Sumitomo, Kyocera Sholette Kyocera CERATIP, Toshiba, Daijie, Hitachi Tools HITACHI TOOL, ISCAR ISCAR, German cobalt collar Guehring, TEGUTEC TAEGUTEC, KORLOY KORLOY and so on.

Domestic brands: Zhuzhou Diamond Brand, Zigong Great Wall Brand, Zhuzhou Jingcheng Brand, Chengdu Yingge, Ha Yigong, Harbin Tool Factory, Southwest Tools, Chengqi Tools, Shaanxi Cemented Carbide, Zhuzhou Cemented Carbide, Guizhou Yihai, Shanghai Tool Factory and a series of domestic and foreign well-known brands of manufacturers of various types and specifications of CNC blades, Metal lathe tools CNC cutting tools, whole tools, machine-clamped blades, welded blades, toolposts, shank, holder, tungsten steel slats, bars. Tungsten steel slats and bars.

At present, our company's product range includes turning tools, milling tools, drilling tools, tooling systems, carbide cutting tools, machine tool accessories and so on.

Our Customer Reviews

Our products are exported to various countries, including the United States, the United Kingdom, Spain, Italy, Belgium, France, Germany, etc., and are deeply loved and supported by users in these countries. Our products are cost-effective, quality guaranteed, and genuine products.

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Welcome to inquire about the prices, and we will provide you with the best service.

Website: https://www.ironrootcnctools.com
Whatsapp/Mobile: +86 13969129141
Email: lronroot190@gmail.com