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As a leading manufacturer of high-precision clamping systems for CNC machine tools in China, we provide product solutions for the CNC machine tool industry.
KURATA TOOLS - Leading Manufacturer of High Precision Clamping Systems. Discover How We Help

2026-07-09 09:55:16
In modern CNC machining, tool holding accuracy directly affects machining quality, surface finish, and production efficiency. The BT40 Hydraulic Chuck is a high-performance Hydraulic Tool Holder designed to provide superior clamping accuracy, excellent vibration damping, and high-speed machining performance.
Compared with conventional tool holders, the BT40 Hydraulic Tool Holder utilizes an advanced Hydraulic Clamping System that delivers uniform clamping force around the cutting tool, resulting in higher precision, longer tool life, and improved machining stability.
As a professional manufacturer, we provide premium BT40 Hydraulic Chucks for CNC machining centers, offering reliable solutions for precision milling, drilling, reaming, and finishing applications.

A BT40 Hydraulic Chuck is a precision Hydraulic Chuck that uses hydraulic pressure inside the holder to securely clamp cutting tools. Unlike mechanical collet systems, the hydraulic chamber distributes clamping force evenly around the tool shank, minimizing runout and vibration.
The BT40 taper conforms to industry-standard BT40 machine spindle interfaces, making it compatible with most BT40 CNC machining centers.
The Hydraulic Clamping System operates by tightening a clamping screw, which compresses hydraulic fluid inside the chuck body. The hydraulic pressure evenly contracts the internal sleeve, securely gripping the cutting tool.
This design offers several advantages:
Uniform 360° clamping force
Extremely low runout
Excellent vibration absorption
Reduced tool deflection
Improved machining accuracy
The result is smoother cutting performance and extended tool life.
The BT40 Hydraulic Tool Holder provides outstanding concentricity, making it suitable for precision machining applications where accuracy is critical.
Benefits include:
Low runout accuracy
Stable cutting performance
Excellent repeatability
Improved surface finish
Compared with standard collet holders, Hydraulic Tool Holders effectively absorb cutting vibrations.
Advantages include:
Reduced chatter
Better surface quality
Lower spindle load
Increased tool life
This makes hydraulic chucks ideal for high-speed finishing operations.
The integrated hydraulic chamber generates consistent clamping pressure without damaging the tool shank.
Suitable for:
End mills
Reamers
Drills
Carbide tools
Finishing cutters
The hydraulic design allows quick and simple tool changes, helping reduce machine downtime and improve production efficiency.
BT40 Hydraulic Chucks are widely used in precision CNC machining industries.
Ideal for:
High-speed milling
Finish machining
Profile milling
Mold manufacturing
The superior concentricity of the Hydraulic Chuck improves hole accuracy and extends drill life.
Applications include:
Precision drilling
Reaming
Boring
Fine finishing
Suitable for machining:
Engine components
Transmission parts
Brake system components
Precision aluminum parts
Used for machining:
Titanium components
Aluminum aerospace parts
Precision structural components
The vibration-damping capability makes the BT40 Hydraulic Tool Holder ideal for producing high-quality mold surfaces.
| Feature | BT40 Hydraulic Chuck | ER Collet Chuck |
|---|---|---|
| Clamping Method | Hydraulic Clamping System | Mechanical Collet |
| Runout Accuracy | Excellent | Good |
| Vibration Damping | Excellent | Moderate |
| Surface Finish | Superior | Standard |
| Tool Life | Longer | Standard |
| High-Speed Machining | Excellent | Good |
For high-precision and high-speed machining, BT40 Hydraulic Chucks provide significant performance advantages.
Many customers ask about the CNC Hydraulic Chuck Price. The final price depends on several factors:
Different BT sizes and clamping capacities affect manufacturing costs.
Premium alloy steel and precision heat treatment improve durability and accuracy.
Higher precision machining and balancing result in better performance and different pricing levels.
Corrosion-resistant coatings and precision grinding add value to the finished product.
For an accurate quotation, please provide your required specifications and order quantity.
Our BT40 Hydraulic Tool Holders are compatible with most CNC machining centers using BT40 spindle interfaces.
Suitable machine brands include many international and domestic CNC machining centers that support BT40 tooling systems.
As a professional manufacturer of Hydraulic Tool Holders, we offer high-performance tooling solutions for global customers.
Premium alloy steel construction
High-precision grinding
Excellent balancing performance
Low runout accuracy
Strict quality inspection
OEM & ODM manufacturing
Competitive factory pricing
Reliable worldwide delivery
Our products are widely used in automotive, aerospace, mold manufacturing, medical equipment, and precision machining industries.
Every BT40 Hydraulic Chuck undergoes comprehensive inspection before delivery, including:
Runout accuracy testing
Dynamic balancing inspection
Clamping force testing
Hardness inspection
Dimensional accuracy verification
Surface quality inspection
These procedures ensure consistent product quality and reliable machining performance.
The BT40 Hydraulic Chuck is an ideal solution for precision CNC machining applications requiring superior accuracy, vibration damping, and stable clamping performance. Equipped with an advanced Hydraulic Clamping System, it delivers excellent concentricity, longer tool life, and improved surface finish.
Whether you are looking for a BT40 Hydraulic Tool Holder, Hydraulic Tooling System, or complete Hydraulic Tool Holders for your CNC machine, we provide reliable products backed by professional manufacturing expertise and customized solutions.
KURATA Tools specializes in the R&D, production, and sales of high-precision clamping systems for CNC machine tools.
E-mail:sales@kuratatools.com