KURATA TOOLS - Leading Manufacturer of High Precision Clamping Systems. Discover How We Help
KURATA Tools specializes in the R&D, production, and sales of high-precision clamping systems for CNC machine tools.
In modern CNC machining, tool holding performance plays an important role in machining accuracy, surface finish, and cutting tool life. Hydraulic Tool Holders are advanced precision clamping solutions designed for high-speed and high-accuracy machining operations.
Unlike traditional mechanical collet systems, hydraulic holders use an internal Hydraulic Clamping System to generate uniform pressure around the tool shank. This technology provides excellent concentricity, reduced vibration, and stable performance even under demanding machining conditions.
Our product range includes Hydraulic Chuck, Hydraulic Chucks, BT Hydraulic Tool Holder, HSK Hydraulic Tool Holder, and complete Hydraulic Tooling System solutions for CNC machining centers. These products are widely used in aerospace, automotive, mold manufacturing, medical, and precision engineering industries.
A Hydraulic Tool Holder is a high-precision CNC tool holding device that uses hydraulic pressure to secure cutting tools with maximum stability and accuracy.
Unlike conventional collet chucks or mechanical holders, hydraulic holders contain a sealed hydraulic chamber. When the clamping screw is tightened, hydraulic pressure is generated and evenly distributed around the tool shank.
This advanced clamping method provides:
Low tool runout
High concentricity
Strong vibration damping
Stable cutting performance
Extended tool life
Because of these advantages, hydraulic holders have become an ideal choice for precision machining applications requiring strict tolerances.
A hydraulic holder operates through a simple but highly effective hydraulic clamping process.
The cutting tool is inserted into the precision-machined bore of the holder. The accurate internal structure ensures proper positioning of the tool shank.
The operator tightens the clamping screw with an Allen key. The screw creates pressure inside the hydraulic chamber.
The hydraulic medium transfers pressure evenly around the tool shank, creating a balanced grip from all directions.
The uniform clamping force reduces tool movement and minimizes runout during high-speed rotation, allowing CNC machines to achieve better accuracy and surface quality.
A Hydraulic Chuck Tool Holder provides more stable performance compared with traditional mechanical tool holding solutions.
Precision is one of the key advantages of Hydraulic Tool Holders.
Our hydraulic holders achieve runout accuracy within ≤3 μm, helping manufacturers achieve:
Improved machining accuracy
Better surface finish
Reduced machining errors
Higher production consistency
This makes them especially suitable for finishing operations and precision components.
During CNC machining, vibration can affect tool performance and surface quality.
A Hydraulic Chuck uses hydraulic damping technology to absorb vibration and improve machining stability.
Benefits include:
Reduced chatter
Longer cutting tool life
Better surface quality
Improved spindle protection
The internal Hydraulic Clamping System applies pressure evenly around the cutting tool.
Compared with traditional collet systems, hydraulic holders provide:
Better concentricity
More stable tool retention
Reduced tool displacement
Reliable machining performance
Unlike shrink-fit holders that require heating equipment, hydraulic holders allow quick tool changes using only a standard Allen wrench.
This helps:
Reduce machine downtime
Improve production efficiency
Simplify operation
Lower maintenance requirements
Our hydraulic holders are balanced to G2.5 at 25,000 RPM, making them suitable for high-speed CNC machining applications.
They are widely used for:
High-speed milling
Precision drilling
Reaming
Finishing operations
Each Hydraulic Holder is manufactured from hardened alloy steel with precision heat treatment.
Features include:
High hardness
Excellent wear resistance
Long service life
Reliable performance
We provide a complete range of hydraulic tool holding solutions for different CNC machining requirements.
The BT Hydraulic Tool Holder is designed for BT spindle systems commonly used in CNC machining centers.
Available models include:
BT30 Hydraulic Tool Holder
BT40 Hydraulic Tool Holder
BT50 Hydraulic Tool Holder
Applications:
CNC milling
Precision machining
High-speed cutting
Production manufacturing
The HSK Hydraulic Tool Holder is designed for high-speed machining centers requiring excellent rigidity and positioning accuracy.
Common specifications include:
HSK-A63
HSK-A100
HSK-E40
HSK hydraulic holders are widely used in:
Aerospace manufacturing
Automotive machining
Mold production
Precision engineering
The Hydraulic End Mill Holder is developed for milling applications that require strong rigidity and accurate tool positioning.
Advantages include:
Reduced cutting vibration
Improved milling stability
Better surface finish
Extended end mill life
For CNC machines using CAT spindle interfaces, we supply Hydraulic CAT40 Holders with excellent balance and clamping accuracy.
They are suitable for:
CNC machining centers
Automotive production
General machining
Precision manufacturing
For customers looking for alternatives to SCHUNK Hydraulic Holders, we provide reliable hydraulic solutions with comparable performance and competitive advantages.
Our products are manufactured with strict quality control to meet modern CNC machining requirements.
| Model | Balance Grade | Maximum RPM | Runout Accuracy |
|---|---|---|---|
| BT30 Hydraulic Holder | G2.5 @ 25,000 RPM | 25,000 RPM | ≤3 μm |
| BT40 Hydraulic Holder | G2.5 @ 25,000 RPM | 25,000 RPM | ≤3 μm |
| BT50 Hydraulic Holder | G2.5 @ 25,000 RPM | 25,000 RPM | ≤3 μm |
| HSK63 Hydraulic Holder | G2.5 @ 25,000 RPM | 25,000 RPM | ≤3 μm |
Custom sizes, lengths, and spindle interfaces are available upon request.
Hydraulic holders are widely used for machining aerospace components made from aluminum alloys, titanium alloys, and other difficult-to-machine materials.
Their excellent stability helps manufacturers achieve strict aerospace machining standards.
In automotive production, hydraulic holders are commonly used for machining:
Engine components
Transmission parts
Aluminum housings
Precision mechanical parts
They provide consistent performance in high-volume production environments.
Mold manufacturing requires high precision and excellent surface quality.
Hydraulic holders help achieve:
Accurate cavity machining
Smooth finishing
Reduced vibration
Better dimensional control
For medical components requiring extremely high accuracy, hydraulic holders provide stable machining performance for materials such as stainless steel and titanium.
Applications include:
Surgical instruments
Medical implants
Precision components
A reliable CNC Machine Hydraulic System combined with advanced tooling solutions helps manufacturers achieve higher efficiency and consistent machining results.
Shrink-fit holders provide high rigidity but require heating equipment for tool installation.
Hydraulic holders offer:
Faster tool changes
Easier operation
Excellent vibration damping
No additional heating equipment
Collet chucks are widely used due to their flexibility and cost-effectiveness.
However, hydraulic holders provide:
Lower runout
Better concentricity
More stable clamping
Improved surface finish
Milling chucks are suitable for heavy-duty rough machining where maximum gripping force is required.
Hydraulic holders are preferred for:
High-speed finishing
Precision milling
Drilling
Reaming
We provide complete CNC tooling solutions for global manufacturers.
Our advantages include:
Professional hydraulic tooling manufacturing
Complete product range
BT, HSK, CAT interfaces available
OEM and ODM customization
Strict quality inspection
High-speed balancing technology
Competitive CNC Hydraulic Chuck Price
Reliable delivery capability
Whether you need a single Hydraulic Chuck or a complete Hydraulic Tooling System, we can provide a suitable solution for your machining requirements.
A hydraulic tool holder is a precision CNC clamping device that uses hydraulic pressure to secure cutting tools. It provides low runout, excellent vibration damping, and stable machining performance.
A hydraulic tool holder uses internal hydraulic pressure to evenly clamp the tool shank. When the clamping screw is tightened, hydraulic pressure creates uniform gripping force around the tool.
Hydraulic chucks provide:
High precision
Low vibration
Fast tool changes
Stable clamping force
Longer tool life
Better machining quality
Yes. We provide BT Hydraulic Tool Holder, HSK Hydraulic Tool Holder, and customized hydraulic solutions for different CNC machines.
Yes. We offer OEM and ODM services including customized sizes, spindle interfaces, lengths, and branding options.
The CNC Hydraulic Chuck Price depends on holder type, size, specifications, customization requirements, and order quantity. Contact us for a customized quotation.
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KURATA Tools specializes in the R&D, production, and sales of high-precision clamping systems for CNC machine tools.
E-mail:sales@kuratatools.com