Hydraulic Reduction Sleeves adapt compatible hydraulic tool holders to smaller cylindrical tool shanks. The sleeve fits the holder bore and provides a precision bore for the cutting tool, allowing different shank diameters to be used within a compatible holder system. Correct bore dimensions, seating geometry and clamping length are essential for secure retention and repeatable tool positioning. Selection depends on the holder specification, tool shank tolerance and machining requirements.
Key Advantages
Flexible Tool Sizing
Matching sleeve bores allow compatible holders to accommodate different cylindrical tool shank diameters without replacing the complete holder assembly.
Repeatable Positioning
Controlled bore dimensions and correct seating support consistent tool alignment. Actual runout depends on the holder, sleeve, tool shank and assembly condition.
Simplified Tool Management
Clearly specified sleeve sizes help organize tooling by shank diameter and support consistent replacement and replenishment.
Technical Specifications
|
Parameter |
Specification |
|
Product Type |
Hydraulic Reduction Sleeve |
|
Outer Diameter (OD) |
20 mm |
|
Inner Bore Options (ID) |
6 mm, 8 mm, 10 mm, 12 mm |
|
Overall Length (L) |
50.5 mm |
|
Tool Shank Type |
Cylindrical |
|
Measurement System |
Metric |
|
Bore Tolerance |
H7 (Typical) |
|
Runout Tolerance |
≤ 0.003 mm |
|
Material Grade |
Alloy Steel |
|
Coolant Configuration |
Through-coolant compatible |
|
Max. Operating Speed |
Up to 20,000 RPM |
|
Customization |
Available upon request |
Applications
Precision Drilling
Suitable for compatible cylindrical-shank drills where consistent tool positioning and repeatable setup are required.
Reaming and Finishing
Supports finishing operations in which tool alignment and dimensional consistency are important process requirements.
Multiple Tool Diameters
Allows a compatible hydraulic holder to accommodate different shank sizes through the appropriate sleeve configuration.
CNC Machining
Applicable to machining operations when the holder, sleeve, tool and operating conditions meet the requirements of the process.
Compatibility & Selection
Holder Interface
Match the sleeve outer diameter, seating geometry and overall dimensions to the specified hydraulic holder. Diameter alone does not establish compatibility.
Tool Shank Fit
Select the inner bore according to the actual shank diameter and specified tolerance. Confirm the required fit before assembly.
Effective Clamping Length
Verify the tool contact length and insertion position against the approved drawing. Ensure the tool is seated correctly and remains within the specified assembly dimensions.
Operating Conditions
Check spindle speed, tool projection, machining load and coolant requirements against the limits for the complete holder assembly.
Materials & Manufacturing
Material Specification
Define the material grade according to the approved drawing and required mechanical properties.
Precision Machining
Control the inner bore, outer diameter, overall length and seating features to the specified tolerances. Grinding, heat treatment and surface finishing should reflect the actual manufacturing process.
Process Documentation
Use controlled drawings and defined inspection criteria to maintain dimensional consistency across production batches.
Customization Options
Custom configurations can be reviewed against technical drawings and manufacturing requirements.
Bore Sizes: Specify the required inner and outer diameters.
Overall Length: Define installation dimensions and effective clamping length.
Material Grade: State the required material designation or technical standard.
Coolant Design: Specify the required coolant path, sealing arrangement and operating pressure.
Drawing Review: Provide a dimensioned drawing and the relevant holder interface details.
Quality Control
Dimensional Inspection
Measure the inner bore, outer diameter, overall length and other drawing-defined critical features using suitable calibrated instruments.
Geometric Accuracy
Evaluate concentricity or total indicated runout according to the specified datum, assembly condition and inspection method.
Batch Traceability
Use defined part numbers and drawing revisions to support product identification and repeat orders. Inspection records should follow the agreed quality requirements.
Ordering Information
Provide the following details for technical review and quotation:
Hydraulic holder model and internal bore dimensions.
Required tool shank diameter and tolerance.
Sleeve outer diameter, overall length and clamping length.
Coolant arrangement and operating pressure, where applicable.
Material grade, dimensional tolerances and inspection requirements.
Required quantity, delivery schedule and technical drawing.
Frequently Asked Questions
Q: What is a hydraulic reduction sleeve used for?
A: It adapts a compatible hydraulic tool holder to a smaller cylindrical tool shank through a matching sleeve bore.
Q: Can one sleeve fit different hydraulic holders?
A: Only when the outer diameter, seating geometry, length and interface requirements match the specified holders.
Q: Are metric and inch sizes available?
A: Available sizes depend on the product range. Specify the measurement system and required dimensions when requesting a quotation.
Q: Are custom dimensions available?
A: Custom dimensions can be reviewed against a technical drawing, including bore diameter, outer diameter, length and tolerances.
Q: Can the sleeve be used with through-coolant tools?
A: This depends on the sleeve construction, sealing arrangement and holder design. Confirm coolant compatibility and allowable pressure for the selected configuration.
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